Tag Archives: cnc machining parts

China high quality Customized ABS Injection Molded Plastic Molded Shell Parts High Precision Plastic CNC Machining Parts

Product Description

Product Parameters

 Product range  Mold design, mold making and produce plastic parts
 Processing Craft  Mold fabrication, Injection etc;
 Material  ABS,BMC, SMC, AS,PP,PPS,PC,PE,POM,PMMA,PS,HDPE,TPE,TPU etc
 Surface finish  Polishing finish,Texture Finish,Glossy Finish,Painting,Slik print,Rubber Painting etc
 Color  RAL/PANTONE color
 Size  according to the drawing
 Mold Standard  DME,LKM,FUTA,HASCO etc.
 Advantages  Competitive price & Fast Delivery & Good quality
 Mould Base  as per customer’s requirement
 Delivery time  10-15 days after placed order
 Tolerance  0.01~0.1mm;
 File Format  Solidworks,Pro/Engineer,Auto CAD,PDF,JPG
 Inspection  IQC, IPQC,FQC,QA
 Application  All kinds of plastic injection parts being used in a variety of industrial application.
 Service

 Warm and quick response service provided by the professional

 Export Sales Team with many years’ experience in handling exports to the US,   Europe, Japan and other countries and regions.

Detailed Photos

Our exhibition

 

Certifications

Company Profile

The company was established in February 2007, located in cHangZhou district, HangZhou city.We mainly manufacture all kinds of mask production equipment, plane mask machine and KN95 machine.It also produces injection and stamping mould and customized automatic production equipment.Business, technology, production, administration a total of 30 people.Processing equipment, testing equipment a total of more than 40 .The company has strict quality management in accordance with ISO9000.

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FAQ

Q1:What’s kinds of information you need for quotation?

VMT: You can provide 2D/3D drawing or send your sample to our factory, then we can make according to your sample.

Q2: Can we CHINAMFG NDA?
VMT: Sure. We never divulge customers’ information to anyone else.

Q3: Do you provide sample?  

VMT: Yes, we can provide you sample before mass order.

Q4: How can you ensure the quality?
VMT: We have profesional QC department to guarantee the quality.

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Condition: New
Certification: CE, ISO9001
Standard: DIN, ASTM
Samples:
US$ 5/Piece
1 Piece(Min.Order)

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Customization:
Available

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Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

What are the typical tolerances and quality standards for injection molded parts?

When it comes to injection molded parts, the tolerances and quality standards can vary depending on several factors, including the specific application, industry requirements, and the capabilities of the injection molding process. Here are some general considerations regarding tolerances and quality standards:

Tolerances:

The tolerances for injection molded parts typically refer to the allowable deviation from the intended design dimensions. These tolerances are influenced by various factors, including the part geometry, material properties, mold design, and process capabilities. It’s important to note that achieving tighter tolerances often requires more precise tooling, tighter process control, and additional post-processing steps. Here are some common types of tolerances found in injection molding:

1. Dimensional Tolerances:

Dimensional tolerances define the acceptable range of variation for linear dimensions, such as length, width, height, and diameter. The specific tolerances depend on the part’s critical dimensions and functional requirements. Typical dimensional tolerances for injection molded parts can range from +/- 0.05 mm to +/- 0.5 mm or even tighter, depending on the complexity of the part and the process capabilities.

2. Geometric Tolerances:

Geometric tolerances specify the allowable variation in shape, form, and orientation of features on the part. These tolerances are often expressed using symbols and control the relationships between various geometric elements. Common geometric tolerances include flatness, straightness, circularity, concentricity, perpendicularity, and angularity. The specific geometric tolerances depend on the part’s design requirements and the manufacturing capabilities.

3. Surface Finish Tolerances:

Surface finish tolerances define the acceptable variation in the texture, roughness, and appearance of the part’s surfaces. The surface finish requirements are typically specified using roughness parameters, such as Ra (arithmetical average roughness) or Rz (maximum height of the roughness profile). The specific surface finish tolerances depend on the part’s aesthetic requirements, functional needs, and the material being used.

Quality Standards:

In addition to tolerances, injection molded parts are subject to various quality standards that ensure their performance, reliability, and consistency. These standards may be industry-specific or based on international standards organizations. Here are some commonly referenced quality standards for injection molded parts:

1. ISO 9001:

The ISO 9001 standard is a widely recognized quality management system that establishes criteria for the overall quality control and management of an organization. Injection molding companies often seek ISO 9001 certification to demonstrate their commitment to quality and adherence to standardized processes for design, production, and customer satisfaction.

2. ISO 13485:

ISO 13485 is a specific quality management system standard for medical devices. Injection molded parts used in the medical industry must adhere to this standard to ensure they meet the stringent quality requirements for safety, efficacy, and regulatory compliance.

3. Automotive Industry Standards:

The automotive industry has its own set of quality standards, such as ISO/TS 16949 (now IATF 16949), which focuses on the quality management system for automotive suppliers. These standards encompass requirements for product design, development, production, installation, and servicing, ensuring the quality and reliability of injection molded parts used in automobiles.

4. Industry-Specific Standards:

Various industries may have specific quality standards or guidelines that pertain to injection molded parts. For example, the aerospace industry may reference standards like AS9100, while the electronics industry may adhere to standards such as IPC-A-610 for acceptability of electronic assemblies.

It’s important to note that the specific tolerances and quality standards for injection molded parts can vary significantly depending on the application and industry requirements. Design engineers and manufacturers work together to define the appropriate tolerances and quality standards based on the functional requirements, cost considerations, and the capabilities of the injection molding process.

Are there specific considerations for choosing injection molded parts in applications with varying environmental conditions or industry standards?

Yes, there are specific considerations to keep in mind when choosing injection molded parts for applications with varying environmental conditions or industry standards. These factors play a crucial role in ensuring that the selected parts can withstand the specific operating conditions and meet the required standards. Here’s a detailed explanation of the considerations for choosing injection molded parts in such applications:

1. Material Selection:

The choice of material for injection molded parts is crucial when considering varying environmental conditions or industry standards. Different materials offer varying levels of resistance to factors such as temperature extremes, UV exposure, chemicals, moisture, or mechanical stress. Understanding the specific environmental conditions and industry requirements is essential in selecting a material that can withstand these conditions while meeting the necessary standards for performance, durability, and safety.

2. Temperature Resistance:

In applications with extreme temperature variations, it is important to choose injection molded parts that can withstand the specific temperature range. Some materials, such as engineering thermoplastics, exhibit excellent high-temperature resistance, while others may be more suitable for low-temperature environments. Consideration should also be given to the potential for thermal expansion or contraction, as it can affect the dimensional stability and overall performance of the parts.

3. Chemical Resistance:

In industries where exposure to chemicals is common, it is critical to select injection molded parts that can resist chemical attack and degradation. Different materials have varying levels of chemical resistance, and it is important to choose a material that is compatible with the specific chemicals present in the application environment. Consideration should also be given to factors such as prolonged exposure, concentration, and frequency of contact with chemicals.

4. UV Stability:

For applications exposed to outdoor environments or intense UV radiation, selecting injection molded parts with UV stability is essential. UV radiation can cause material degradation, discoloration, or loss of mechanical properties over time. Materials with UV stabilizers or additives can provide enhanced resistance to UV radiation, ensuring the longevity and performance of the parts in outdoor or UV-exposed applications.

5. Mechanical Strength and Impact Resistance:

In applications where mechanical stress or impact resistance is critical, choosing injection molded parts with the appropriate mechanical properties is important. Materials with high tensile strength, impact resistance, or toughness can ensure that the parts can withstand the required loads, vibrations, or impacts without failure. Consideration should also be given to factors such as fatigue resistance, abrasion resistance, or flexibility, depending on the specific application requirements.

6. Compliance with Industry Standards:

When selecting injection molded parts for applications governed by industry standards or regulations, it is essential to ensure that the chosen parts comply with the required standards. This includes standards for dimensions, tolerances, safety, flammability, electrical properties, or specific performance criteria. Choosing parts that are certified or tested to meet the relevant industry standards helps ensure compliance and reliability in the intended application.

7. Environmental Considerations:

In today’s environmentally conscious landscape, considering the sustainability and environmental impact of injection molded parts is increasingly important. Choosing materials that are recyclable or biodegradable can align with sustainability goals. Additionally, evaluating factors such as energy consumption during manufacturing, waste reduction, or the use of environmentally friendly manufacturing processes can contribute to environmentally responsible choices.

8. Customization and Design Flexibility:

Lastly, the design flexibility and customization options offered by injection molded parts can be advantageous in meeting specific environmental or industry requirements. Injection molding allows for intricate designs, complex geometries, and the incorporation of features such as gaskets, seals, or mounting points. Customization options for color, texture, or surface finish can also be considered to meet specific branding or aesthetic requirements.

Considering these specific considerations when choosing injection molded parts for applications with varying environmental conditions or industry standards ensures that the selected parts are well-suited for their intended use, providing optimal performance, durability, and compliance with the required standards.

What are injection molded parts, and how are they manufactured?

Injection molded parts are components or products that are produced through the injection molding manufacturing process. Injection molding is a widely used manufacturing technique for creating plastic parts with high precision, complexity, and efficiency. Here’s a detailed explanation of injection molded parts and the process of manufacturing them:

Injection Molding Process:

The injection molding process involves the following steps:

1. Mold Design:

The first step in manufacturing injection molded parts is designing the mold. The mold is a custom-made tool that defines the shape and features of the final part. It is typically made from steel or aluminum and consists of two halves: the cavity and the core. The mold design takes into account factors such as part geometry, material selection, cooling requirements, and ejection mechanism.

2. Material Selection:

The next step is selecting the appropriate material for the injection molding process. Thermoplastic polymers are commonly used due to their ability to melt and solidify repeatedly without significant degradation. The material choice depends on the desired properties of the final part, such as strength, flexibility, transparency, or chemical resistance.

3. Melting and Injection:

In the injection molding machine, the selected thermoplastic material is melted and brought to a molten state. The molten material, called the melt, is then injected into the mold under high pressure. The injection is performed through a nozzle and a runner system that delivers the molten material to the mold cavity.

4. Cooling:

After the molten material is injected into the mold, it begins to cool and solidify. Cooling is a critical phase of the injection molding process as it determines the final part’s dimensional accuracy, strength, and other properties. The mold is designed with cooling channels or inserts to facilitate the efficient and uniform cooling of the part. Cooling time can vary depending on factors such as part thickness, material properties, and mold design.

5. Mold Opening and Ejection:

Once the injected material has sufficiently cooled and solidified, the mold opens, separating the two halves. Ejector pins or other mechanisms are used to push or release the part from the mold cavity. The ejection system must be carefully designed to avoid damaging the part during the ejection process.

6. Finishing:

After ejection, the injection molded part may undergo additional finishing processes, such as trimming excess material, removing sprues or runners, and applying surface treatments or textures. These processes help achieve the desired final appearance and functionality of the part.

Advantages of Injection Molded Parts:

Injection molded parts offer several advantages:

1. High Precision and Complexity:

Injection molding allows for the creation of parts with high precision and intricate details. The molds can produce complex shapes, fine features, and precise dimensions, enabling the manufacturing of parts with tight tolerances.

2. Cost-Effective Mass Production:

Injection molding is a highly efficient process suitable for large-scale production. Once the mold is created, the manufacturing process can be automated, resulting in fast and cost-effective production of identical parts. The high production volumes help reduce per-unit costs.

3. Material Versatility:

Injection molding supports a wide range of thermoplastic materials, allowing for versatility in material selection based on the desired characteristics of the final part. Different materials can be used to achieve specific properties such as strength, flexibility, heat resistance, or chemical resistance.

4. Strength and Durability:

Injection molded parts can exhibit excellent strength and durability. The molding process ensures that the material is uniformly distributed, resulting in consistent mechanical properties throughout the part. This makes injection molded parts suitable for various applications that require structural integrity and longevity.

5. Minimal Post-Processing:

Injection molded parts often require minimal post-processing. The high precision and quality achieved during the molding process reduce the need for extensive additional machining or finishing operations, saving time and costs.

6. Design Flexibility:

With injection molding, designers have significant flexibility in part design. The process can accommodate complex geometries, undercuts, thin walls, and other design features that may be challenging or costly with other manufacturing methods. This flexibility allows for innovation and optimization of part functionality.

In summary, injection molded parts are components or products manufactured through the injection molding process. This process involves designing amold, selecting the appropriate material, melting and injecting the material into the mold, cooling and solidifying the part, opening the mold and ejecting the part, and applying finishing processes as necessary. Injection molded parts offer advantages such as high precision, complexity, cost-effective mass production, material versatility, strength and durability, minimal post-processing, and design flexibility. These factors contribute to the widespread use of injection molding in various industries for producing high-quality plastic parts.

China high quality Customized ABS Injection Molded Plastic Molded Shell Parts High Precision Plastic CNC Machining Parts  China high quality Customized ABS Injection Molded Plastic Molded Shell Parts High Precision Plastic CNC Machining Parts
editor by CX 2024-02-15

China Custom Plastic Fabrication Plastic Machining Custom ABS Injection Plastic Molded Casing Parts High Precision Plastic CNC Machining Part

Product Description

Product Name Plastic Fabrication Plastic Machining Custom ABS Injection Plastic Molded Casing Parts High Precision Plastic CNC Machining Part
Materials 1. metal:Aluminum/Steel/Alloy steel/Stainless steel/Brass,copper,bronze etc.
2. plastic: ABS,POM,PE,PP,PVC,PC,PMMA,nylon etc.
3. others: carbon fiber, glass,fiberglass, wood, hard rubber etc.
Color Silver, Gray, Black ,Gold or as client’s requirement
Surface Roughness Ra0.8 ( without polishing or grinding)
Logo Method laser engraving, CNC engraving, screen-printing etc.
Surface Finish  Anodize; polishing; zinc/nickel/chrome/gold plating, sand blasting, ect.
Tolerance  +/- 0.01–0.05mm / can also be customized
Certificate ISO SGS
Processing equipments CNC machining center,NC lathe, Grinding machine, Automatic lathe machine, Conventional lathe machine,Milling machine,Drilling machine,EDM,Wire-cutting machine,CNC bending machine etc
Testing machine Coordinate measuring machine,Image measuring instrument,Caliper etc
Application Medical Instruments/Electronic/ Industrial/ Automation / motorcycle/3D printer
Service OEM,ODM or as client’s requirement

Product Description

 

 

Company Profile

 

 

 

FAQ

 

Contact Us

Surface Treatment: Other
Machining Method: Other
Sample Time: 5-7days
Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

What is the impact of material selection on the performance and durability of injection molded parts?

The material selection for injection molded parts has a significant impact on their performance and durability. The choice of material influences various key factors, including mechanical properties, chemical resistance, thermal stability, dimensional stability, and overall part functionality. Here’s a detailed explanation of the impact of material selection on the performance and durability of injection molded parts:

Mechanical Properties:

The mechanical properties of the material directly affect the part’s strength, stiffness, impact resistance, and fatigue life. Different materials exhibit varying levels of tensile strength, flexural strength, modulus of elasticity, and elongation at break. The selection of a material with appropriate mechanical properties ensures that the injection molded part can withstand the applied forces, vibrations, and operational stresses without failure or deformation.

Chemical Resistance:

The material’s resistance to chemicals and solvents is crucial in applications where the part comes into contact with aggressive substances. Certain materials, such as engineering thermoplastics like ABS (Acrylonitrile Butadiene Styrene) or PEEK (Polyether Ether Ketone), exhibit excellent chemical resistance. Choosing a material with the appropriate chemical resistance ensures that the injection molded part maintains its integrity and functionality when exposed to specific chemicals or environments.

Thermal Stability:

The thermal stability of the material is essential in applications that involve exposure to high temperatures or thermal cycling. Different materials have varying melting points, glass transition temperatures, and heat deflection temperatures. Selecting a material with suitable thermal stability ensures that the injection molded part can withstand the anticipated temperature variations without dimensional changes, warping, or degradation of mechanical properties.

Dimensional Stability:

The dimensional stability of the material is critical in applications where precise tolerances and dimensional accuracy are required. Some materials, such as engineering thermoplastics or filled polymers, exhibit lower coefficients of thermal expansion, minimizing the part’s dimensional changes with temperature variations. Choosing a material with good dimensional stability helps ensure that the injection molded part maintains its shape, size, and critical dimensions over a wide range of operating temperatures.

Part Functionality:

The material selection directly impacts the functionality and performance of the injection molded part. Different materials offer unique properties that can be tailored to meet specific application requirements. For example, materials like polycarbonate (PC) or polypropylene (PP) offer excellent transparency, making them suitable for applications requiring optical clarity, while materials like polyamide (PA) or polyoxymethylene (POM) provide low friction and wear resistance, making them suitable for moving or sliding parts.

Cycle Time and Processability:

The material selection can also affect the cycle time and processability of injection molding. Different materials have different melt viscosities and flow characteristics, which influence the filling and cooling times during the molding process. Materials with good flow properties can fill complex mold geometries more easily, reducing the cycle time and improving productivity. It’s important to select a material that can be effectively processed using the available injection molding equipment and techniques.

Cost Considerations:

The material selection also impacts the overall cost of the injection molded part. Different materials have varying costs, and selecting the most suitable material involves considering factors such as material availability, tooling requirements, processing conditions, and the desired performance characteristics. Balancing the performance requirements with cost considerations is crucial in achieving an optimal material selection that meets the performance and durability requirements within the budget constraints.

Overall, material selection plays a critical role in determining the performance, durability, and functionality of injection molded parts. Careful consideration of mechanical properties, chemical resistance, thermal stability, dimensional stability, part functionality, cycle time, processability, and cost factors helps ensure that the chosen material meets the specific application requirements and delivers the desired performance and durability over the part’s intended service life.

Can you describe the various post-molding processes, such as assembly or secondary operations, for injection molded parts?

Post-molding processes play a crucial role in the production of injection molded parts. These processes include assembly and secondary operations that are performed after the initial molding stage. Here’s a detailed explanation of the various post-molding processes for injection molded parts:

1. Assembly:

Assembly involves joining multiple injection molded parts together to create a finished product or sub-assembly. The assembly process can include various techniques such as mechanical fastening (screws, clips, or snaps), adhesive bonding, ultrasonic welding, heat staking, or solvent welding. Assembly ensures that the individual molded parts are securely combined to achieve the desired functionality and structural integrity of the final product.

2. Surface Finishing:

Surface finishing processes are performed to enhance the appearance, texture, and functionality of injection molded parts. Common surface finishing techniques include painting, printing (such as pad printing or screen printing), hot stamping, laser etching, or applying specialized coatings. These processes can add decorative features, branding elements, or improve the surface properties of the parts, such as scratch resistance or UV protection.

3. Machining or Trimming:

In some cases, injection molded parts may require additional machining or trimming to achieve the desired final dimensions or remove excess material. This can involve processes such as CNC milling, drilling, reaming, or turning. Machining or trimming is often necessary when tight tolerances, specific geometries, or critical functional features cannot be achieved solely through the injection molding process.

4. Welding or Joining:

Welding or joining processes are used to fuse or bond injection molded parts together. Common welding techniques for plastic parts include ultrasonic welding, hot plate welding, vibration welding, or laser welding. These processes create strong and reliable joints between the molded parts, ensuring structural integrity and functionality in the final product.

5. Insertion of Inserts:

Insertion involves placing metal or plastic inserts into the mold cavity before the injection molding process. These inserts can provide additional strength, reinforce threaded connections, or serve as mounting points for other components. Inserts can be placed manually or using automated equipment, and they become permanently embedded in the molded parts during the molding process.

6. Overmolding or Two-Shot Molding:

Overmolding or two-shot molding processes allow for the creation of injection molded parts with multiple layers or materials. In overmolding, a second material is molded over a pre-existing substrate, providing enhanced functionality, aesthetics, or grip. Two-shot molding involves injecting two different materials into different sections of the mold to create a single part with multiple colors or materials. These processes enable the integration of multiple materials or components into a single injection molded part.

7. Deflashing or Deburring:

Deflashing or deburring processes involve removing excess flash or burrs that may be present on the molded parts after the injection molding process. Flash refers to the excess material that extends beyond the parting line of the mold, while burrs are small protrusions or rough edges caused by the mold features. Deflashing or deburring ensures that the molded parts have smooth edges and surfaces, improving their appearance, functionality, and safety.

8. Inspection and Quality Control:

Inspection and quality control processes are performed to ensure that the injection molded parts meet the required specifications and quality standards. This can involve visual inspection, dimensional measurement, functional testing, or other specialized testing methods. Inspection and quality control processes help identify any defects, inconsistencies, or deviations that may require rework or rejection of the parts, ensuring that only high-quality parts are used in the final product or assembly.

9. Packaging and Labeling:

Once the post-molding processes are complete, the injection molded parts are typically packaged and labeled for storage, transportation, or distribution. Packaging can include individual part packaging, bulk packaging, or custom packaging based on specific requirements. Labeling may involve adding product identification, barcodes, or instructions for proper handling or usage.

These post-molding processes are vital in achieving the desired functionality, appearance, and quality of injection molded parts. They enable the integration of multiple components, surface finishing, dimensional accuracy, and assembly of the final products or sub-assemblies.

What are injection molded parts, and how are they manufactured?

Injection molded parts are components or products that are produced through the injection molding manufacturing process. Injection molding is a widely used manufacturing technique for creating plastic parts with high precision, complexity, and efficiency. Here’s a detailed explanation of injection molded parts and the process of manufacturing them:

Injection Molding Process:

The injection molding process involves the following steps:

1. Mold Design:

The first step in manufacturing injection molded parts is designing the mold. The mold is a custom-made tool that defines the shape and features of the final part. It is typically made from steel or aluminum and consists of two halves: the cavity and the core. The mold design takes into account factors such as part geometry, material selection, cooling requirements, and ejection mechanism.

2. Material Selection:

The next step is selecting the appropriate material for the injection molding process. Thermoplastic polymers are commonly used due to their ability to melt and solidify repeatedly without significant degradation. The material choice depends on the desired properties of the final part, such as strength, flexibility, transparency, or chemical resistance.

3. Melting and Injection:

In the injection molding machine, the selected thermoplastic material is melted and brought to a molten state. The molten material, called the melt, is then injected into the mold under high pressure. The injection is performed through a nozzle and a runner system that delivers the molten material to the mold cavity.

4. Cooling:

After the molten material is injected into the mold, it begins to cool and solidify. Cooling is a critical phase of the injection molding process as it determines the final part’s dimensional accuracy, strength, and other properties. The mold is designed with cooling channels or inserts to facilitate the efficient and uniform cooling of the part. Cooling time can vary depending on factors such as part thickness, material properties, and mold design.

5. Mold Opening and Ejection:

Once the injected material has sufficiently cooled and solidified, the mold opens, separating the two halves. Ejector pins or other mechanisms are used to push or release the part from the mold cavity. The ejection system must be carefully designed to avoid damaging the part during the ejection process.

6. Finishing:

After ejection, the injection molded part may undergo additional finishing processes, such as trimming excess material, removing sprues or runners, and applying surface treatments or textures. These processes help achieve the desired final appearance and functionality of the part.

Advantages of Injection Molded Parts:

Injection molded parts offer several advantages:

1. High Precision and Complexity:

Injection molding allows for the creation of parts with high precision and intricate details. The molds can produce complex shapes, fine features, and precise dimensions, enabling the manufacturing of parts with tight tolerances.

2. Cost-Effective Mass Production:

Injection molding is a highly efficient process suitable for large-scale production. Once the mold is created, the manufacturing process can be automated, resulting in fast and cost-effective production of identical parts. The high production volumes help reduce per-unit costs.

3. Material Versatility:

Injection molding supports a wide range of thermoplastic materials, allowing for versatility in material selection based on the desired characteristics of the final part. Different materials can be used to achieve specific properties such as strength, flexibility, heat resistance, or chemical resistance.

4. Strength and Durability:

Injection molded parts can exhibit excellent strength and durability. The molding process ensures that the material is uniformly distributed, resulting in consistent mechanical properties throughout the part. This makes injection molded parts suitable for various applications that require structural integrity and longevity.

5. Minimal Post-Processing:

Injection molded parts often require minimal post-processing. The high precision and quality achieved during the molding process reduce the need for extensive additional machining or finishing operations, saving time and costs.

6. Design Flexibility:

With injection molding, designers have significant flexibility in part design. The process can accommodate complex geometries, undercuts, thin walls, and other design features that may be challenging or costly with other manufacturing methods. This flexibility allows for innovation and optimization of part functionality.

In summary, injection molded parts are components or products manufactured through the injection molding process. This process involves designing amold, selecting the appropriate material, melting and injecting the material into the mold, cooling and solidifying the part, opening the mold and ejecting the part, and applying finishing processes as necessary. Injection molded parts offer advantages such as high precision, complexity, cost-effective mass production, material versatility, strength and durability, minimal post-processing, and design flexibility. These factors contribute to the widespread use of injection molding in various industries for producing high-quality plastic parts.

China Custom Plastic Fabrication Plastic Machining Custom ABS Injection Plastic Molded Casing Parts High Precision Plastic CNC Machining Part  China Custom Plastic Fabrication Plastic Machining Custom ABS Injection Plastic Molded Casing Parts High Precision Plastic CNC Machining Part
editor by CX 2023-11-29

China best Custom High Quality Precision Aluminum Plastic POM CZPT CNC Machining Turning Parts injection molded car parts

Product Description

With a capable machining team and comprehensive knowledge of materials, advanced machineries and facilities, Energetic Industry served clients in broad field.

We can produce precision machining parts according to your idea, not only for material choosing, but also property requirements and shapes.

1. Customized material

Materials Available General Plastic: HDPE, PP, PVC, ABS, PMMA(Acrylic) ect.
Engineering Plastic: POM, PA6, MC nylon, Nylon 66, PTFE, UHMWPE,PVDF ect.
High Performance Plastic: PPS, PEEK, PI, PEI ect.
Thermosetting Plastic:  Durostone, Ricocel sheet, G10, FR4, Bakelite ect.
Spcial Plastic Material: Plastic +GF/CA/Oil/Brone/Graphit/MSO2/ceramic ect.
Spcial Plastic Plastic Alloy: PE+PA, PP+PA, POM + PTFE ect.
Metals: Carbon Steel, SS Steel, Brass, Iron, Bronze, Aluminum, Titanium
Special parts: Metal + Plastic Combined Part

2. Customized property
ESD, conductive, hardness, wear resistance, fire-resistant, corrosion resistance, impact strength, work temperature, UV resistant ect.

3. Customized shape with drawing

Gear, rollers, wheels, base part, spacers, blade, liner, rack, bearings, pulley, bearing sleeves, linear guide rail, sliding block, guide channel, spiral, washer, positioning strip, joint, sheath, CZPT plate, retaining ring, slot, skating board, frame, cavity parts, CZPT jig and fixture, PCB solder pallet, profiles.
Molds, cavity, Radiator fin, prototype, outermost shell, fittings and connectors, screws , bolt …

Further services of CNC machining:

Processing: Cutting, CNC machining, CNC milling and turning, drilling, grinding, bending, stamping, tapping, injection
Surface finish: Zinc-plated, nickel-plated, chrome-plated, silver-plated, gold-plated, imitation gold-plated

Application Field:

  1. Electronic and electrician
  2. Physical and Electronic Science Research
  3. Mineral and coal
  4. Aerospace
  5. Food processing
  6. Textile printing & dyeing industry
  7. Analytical instrument industry
  8. Medical device industry
  9. Semi conductor, solar, FPD industry
  10. Automotive industry
  11. Oil & Gas
  12. Automobile
  13. Machinery and other industrial ect.

 

Material: PA
Kind: Good Wear Resistance
Water Absorption: 1.5%~3.5%
Contraction Percentage: <0.4%
Tensile Strength: 81~130MPa
Color: Natural, Black, Red, Green, Customized
Samples:
US$ 1/Piece
1 Piece(Min.Order)

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Customization:
Available

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Injection molded partt

Importance of Wall Thickness in Injection Molded Parts

When designing injection molded parts, it is important to keep the wall thickness uniform. Uneven wall thickness can lead to warping and sinking. To minimize these problems, injection molded parts should have a wall thickness of 40 to 60 percent of the adjacent wall. The thickness of the wall should also fit within the range recommended for the resin that is being used. If the wall thickness is too thick, it should be cored out. Unnecessary wall thickness alters the dimensions of the part, reduces its strength, and may require post-process machining.

Designing out sharp corners on injection molded parts

Designing out sharp corners on injection molded components can be a challenging process. There are several factors to consider that impact how much corner radius you need to design out. A general rule is to use a radius that is about 0.5 times the thickness of the adjacent wall. This will prevent sharp corners from occurring on a part that is manufactured from injection molding.
Sharp corners can obstruct the flow of plastic melt into the mold and create flaws on parts. They can also cause stress concentration, which can compromise the strength of the part. To avoid this, sharp corners should be designed out. Adding radii to the corners is also an effective way to avoid sharp angles.
Another common problem is the presence of overhangs. Injection molding parts with overhangs tend to have side-action cores, which enter from the top or bottom. As a result, the cost of making these parts goes up quickly. Moreover, the process of solidification and cooling takes up more than half of the injection molding cycle. This makes it more cost-effective to design parts with minimal overhangs.
Undercuts on injection molded parts should be designed with a greater radius, preferably one or two times the part’s wall thickness. The inside radius of corners should be at least 0.5 times the wall thickness and the outside radius should be 1.5 times the wall thickness. This will help maintain a consistent wall thickness throughout the part. Avoiding undercuts is also important for easy ejection from the mold. If undercuts are present, they can cause a part to stick inside the mold after it has cooled.
Keeping wall thickness uniform is another important issue when designing plastic parts. Inconsistent wall thickness will increase the chance of warping and other defects.

Adding inserts to injection molded parts

Adding inserts to injection molded parts can be a cost-effective way to enhance the functionality of your products. Inserts are usually manufactured from a wide range of materials, including stainless steel, brass, aluminum, bronze, copper, Monel, nickel/nickel alloy, and more. Selecting the right material for your parts depends on the application. Choosing the correct material can help prevent defects and keep production cycles short. The insert material should be durable and resist deformation during the injection molding process. It must also be thin enough to provide the desired grip and have a proper mold depth.
The benefits of adding inserts to injection molded parts include the ability to design parts with unique shapes. These parts can be aesthetically pleasing, while still remaining durable and resistant to wear and tear. In addition, insert molding allows products to have a good external finish. In addition to being cost-effective, insert molding is considered a more efficient manufacturing method than other conventional methods.
Adding inserts to injection molded parts is an excellent way to enhance the strength and performance of your products. There are many different types of inserts, including threaded nuts, bushings, pins, and blades. Some types are even available with knurled outer surfaces that help them adhere to plastic.
In addition to being cost-effective, insert molding is environmentally friendly and compatible with many types of materials. Typical inserts are made of metal or plastic. Depending on the application, stiffening inserts may also be made from wood.

Importance of uniform wall thickness

Injection molded partThe uniformity of wall thickness is an essential factor in the plastic injection molding process. It not only provides the best processing results, but also ensures that the molded part is consistently balanced. This uniformity is especially important for plastics, since they are poor heat conductors. Moreover, if the wall thickness of an injection molded part varies, air will trap and the part will exhibit a poorly balanced filling pattern.
Uniform wall thickness also helps reduce shrinkage. Different materials have different shrinkage rates. For instance, thick parts take longer time to cool than thin ones. As the part’s thickness increases, cooling time doubles. This relationship is due to the one-dimensional heat conduction equation, which shows that heat flows from the center of the part toward the cooling channel. However, this relationship does not hold for all types of plastics.
The general rule for maintaining uniform wall thickness in injection molded parts is that walls should be no thicker than 3mm. In some cases, thicker walls can be used, but they will significantly increase production time and detract from the part’s aesthetic appeal and functionality. Furthermore, the thickness of adjacent walls should be no thicker than 40-60% of each other.
The uniformity of wall thickness is critical to the overall quality and efficiency of the injection molding process. An uneven wall thickness can cause twisting, warping, cracking, and even collapse. A uniform wall thickness also reduces residual stress and shrinkage. Injection molded parts are more stable when the wall thickness is uniform.
An injection molded part with thick walls can be problematic, especially when the molded parts are shaped like a cube. A non-uniform wall thickness can result in problems and costly retooling. Fortunately, there are solutions to this problem. The first step is to understand the problem areas and take action.

Using 3D printing to fabricate molds

splineshaftThe use of 3D printed molds allows manufacturers to manufacture a wide range of injection molded parts. However, 3D-printed molds are not as strong as those made from metallic materials. This means that they do not withstand high temperatures, which can degrade them. As such, they are not suitable for projects that require smooth finishing. In order to reduce this risk, 3D-printed molds can be treated with ceramic coatings.
Using 3D printing to fabricate injection molds can help reduce costs and lead times, allowing manufacturers to bring their products to market faster. This process also has the advantage of being highly efficient, as molds made using 3D printing can be designed to last for many years.
The first step in fabricating an injection mold is to design a design. This design can be complex or simple, depending on the part. The design of the mold can be intricate. A simple example of a mold would be a red cup, with an interior and exterior. The interior portion would have a large cone of material protruding from the other side.
Injection molding is an effective way to produce thousands of parts. However, many engineering companies do not have access to expensive 3D printers. To solve this problem, companies should consider using outside suppliers. In addition to speeding up the manufacturing process, 3D printing can reduce the cost of sample parts.
Plastic injection molding still remains the most popular method for high volume production. However, this process requires a large up-front capital investment and takes a while to adapt. Its advantages include the ability to use multiple molds at once, minimal material wastage, and precision dosing. With an increasing number of materials available, 3D printing can be a smart option for companies looking to manufacture a variety of plastic parts.
China best Custom High Quality Precision Aluminum Plastic POM CZPT CNC Machining Turning Parts   injection molded car partsChina best Custom High Quality Precision Aluminum Plastic POM CZPT CNC Machining Turning Parts   injection molded car parts
editor by CX 2023-06-01

China CNC Machining Plastic Injection Molding Parts Custom Made Plastic Parts standard tolerances for injection molded parts

Product Description

01. Product Description

If you wanna other kinds of Injection Molding Elements,you should really feel cost-free to make contact with with us ! 

Merchandise Description
Products Name Injection Molding Components
Merchandise class Injection Molding Elements
Content EPDM,NR,SBR,Nitrile, Silicone, Fluorosilicone, Viton(FKM), Neoprene, Urethane(PU), Polyacrylate(ACM), Ethylene Acrylic(AEM),  HNBR, Butyl(IIR), plastic like materials (TPE, PU, NBR, silicone, NBR+TPE and so on)
Measurement All dimensions and thickness accessible.
Condition able of all designs as for each drawing
Colour All-natural,black, Pantone code or RAL code, or as per client’s samples or needs
Hardness 20°~90° Shore A, typically 30°~80° Shore A.
Surface ending Texture (VDI/MT normal, or made to client’s sample), polished (high polish, mirror polish), clean, portray, powder coating, printing, electroplating and so forth.
Drawing 2d or 3D draiwng in any graphic/photo structure is Alright
Cost-free sample Sure
OEM/OEM Sure
Software Home, electronics, for autos like GM, Ford, Renault, Honda. Equipment, healthcare facility, petrochemical, Army and Aerospace and many others.
Market Europe, North The us, Oceania
Quality certification ISO 90001:2008, TS16949, Fda, Reach, ROHS, SGS
QC Each order manufacturing will get far more than ten occasions standard check and 5 fives times random verify by our specialist QC. Or by Third party appointed by customer
 
Mildew Molding Approach Injection molding, mould processing, extrusion
Mould variety processing mildew, injection mold, extrusionmold
Devices 350T vacuum urgent device and other urgent equipment at 300T,250T and so on
Tooling products Rubber tension tester, Rubber vulcanization instrument, Durometer, calipers, ageing oven
Cavity one~400 cavities
Mould Life three hundred,000~1,00,000 instances
 
Generation Creation capacity complete every mildew of product in 3 minutes and operating on 3 shifts inside of 24 hours
Mould direct time 15~35 days
Sample lead time three~5 days
Creation time generally fifteen~thirty times, must be confirmed before order
Loading port HangZhou, ZheJiang , HangZhou or as necessary

02. Organization Profile

HangZhou Brother Rubber business was proven in 1996 yr, Situated in HangZhou,China. We are an OEM/ODM professional manufacturer concentrated on remedies of rubber and plastic merchandise. It signifies large high quality and is backed up by our crew of top quality assurance professionals and our ISO 9001 and TS 16949 certifications. Its plant occupies in excess of 2500 square meters of land.

Our main clients arrive from Europe,The us and Oceanica, Instance: Uk, United states of america, Spain, Denmark,Germany, Australia, Finland .

Our strengths are our potential to respond swiftly and efficiently to buyer wants, excellent top quality requirements, and prime notch follow-up services. Our sturdy engineering crew supports our capacity to provide superb good quality and on-time supply. Our popularity is primarily based on great credit rating, good quality and services which is highly appreciated by buyers in European and North American marketplace. With experienced and steady management staff, innovative tools and leading technology, knowledgeable advertising and marketing group, a great track record amongst our buyers, the Group is creating each work to create the new manufacturer of rubber, plastic items, steel items, mold processing in the world.

“leadship through high quality and services, To generate benefit for clients is producing a foreseeable future for ourselves” as our motto. Welcome abroad close friends to pay a visit to our company. Hunting ahead to your help far more!

Place of work:
Our sale office is found in HangZhou city downtown, ZheJiang Province, China. It is in 2~3 hours push distance to both our factory and airport or sea port in HangZhou. It is also convenient to meet clients from various nations.

Products and supplies:
Our organization is engaged in manufacture Rubber and plastic components. The principal goods contain molded rubber components, Extrusion silicone tube/strip, silicone sponge tube, Injection plastic areas, Extrusion plastic elements, Rubber sponge areas, PVC dipping.

We make these parts according to the drawings or samples from clients with numerous condition,dimension and shade , Illustration rubber rings, bellows, seals,hose,plug,bumper and so on, The main rubber raw materials is EPDM,NR,SBR,Nitrile, Silicone, Fluorosilicone, Viton(FKM), Neoprene, Urethane(PU), Polyacrylate(ACM), Ethylene Acrylic(AEM), HNBR, Butyl(IIR) with thirty~90 Shore A hardness. The primary plastic raw substance is PP, PA, PE, POM, Personal computer, PVC, PS, PVC, TPE, TPR, TPU ,Santoprene. Specifically we have edge in rubber seals and automobile rubber components, We have created several components for some automotive organization like,Rover,BMW, Opel, GM, Ford, Renault, Honda.

Profound encounter:
Our engineers and QC specialists are engaged in rubber plastic industry over 23 years. Our main management crew has wealthy knowledge and deep knowing of rubber and plastic growth.

Creation capacity:
Factory is working 24 several hours by 3 shifts every working day, It will take only 3 minutes to finish 1 mould of products. (If 1 mold has fifty cavities, then we can produce 50PCS of items inside 3 minutes). Creation machines such as 350T vacuum pressing device, 300T pressing equipment, 250T machines and far more other folks.

Quality handle and check:
It has far more than ten instances of good quality check for each order, commencing from raw materials examine to package deal check. Every generation line has at minimum 2 QC personnel for random examine and standard examine. Examination: manufactory testing device involves rubber pressure tester, rubber vulcanization instrument, durometer, calipers, ageing oven for Density check, Elongation at split, Bonding strength, Pulling force test, twisting drive check, Rergarding other check like anti-substantial/low temperature which will be tested by 3rd Party Testing Center as customer essential.

Sale support:
Each and every salesman should be in support right after strictly qualified with productions expertise and client-services specifications. Be experienced in exporting organization treatment and English communication.

 

US $0.5-1.99
/ Piece
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200 Pieces

(Min. Order)

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Material: PP PA PS PE PC PVC ABS
Application: Medical, Household, Electronics, Automotive, Agricultural
Certification: TS16949, RoHS, ISO
Item Name: Custom Plastic Parts
Other Materials: PP PA PS PE PC PVC ABS
MOQ: 200 Pieces

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Samples:
US$ 0/Piece
1 Piece(Min.Order)

|
Request Sample

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Customization:

###

Product Description
Products Name Injection Molding Parts
Products category Injection Molding Parts
Material EPDM,NR,SBR,Nitrile, Silicone, Fluorosilicone, Viton(FKM), Neoprene, Urethane(PU), Polyacrylate(ACM), Ethylene Acrylic(AEM),  HNBR, Butyl(IIR), plastic like material (TPE, PU, NBR, silicone, NBR+TPE etc)
Size All size and thickness available.
Shape capable of all shapes as per drawing
Color Natural,black, Pantone code or RAL code, or as per client’s samples or requirements
Hardness 20°~90° Shore A, usually 30°~80° Shore A.
Surface finishing Texture (VDI/MT standard, or made to client’s sample), polished (high polish, mirror polish), smooth, painting, powder coating, printing, electroplating etc.
Drawing 2D or 3D draiwng in any image/picture format is OK
Free sample Yes
OEM/OEM Yes
Application Household, electronics, for vehicles like GM, Ford, Renault, Honda. Machinery, hospital, petrochemical, Military and Aerospace etc.
Market Europe, North America, Oceania
Quality certification ISO 90001:2008, TS16949, FDA, REACH, ROHS, SGS
QC Every order production will get more than 10 times regular check and 5 fives times random check by our professional QC. Or by Third party appointed by customer
 
Mold Molding Process Injection molding, mold processing, extrusion
Mould type processing mold, injection mold, extrusionmold
Machines 350T vacuum pressing machine and other pressing machine at 300T,250T and so on
Tooling equipment Rubber tension tester, Rubber vulcanization instrument, Durometer, calipers, ageing oven
Cavity 1~400 cavities
Mould Life 300,000~1,00,000 times
 
Production Production capacity finish each mold of product in 3 minutes and working on 3 shifts within 24 hours
Mold lead time 15~35 days
Sample lead time 3~5 days
Production time usually 15~30 days, should be confirmed before order
Loading port Hangzhou, Shanghai, Ningbo or as required
US $0.5-1.99
/ Piece
|
200 Pieces

(Min. Order)

###

Material: PP PA PS PE PC PVC ABS
Application: Medical, Household, Electronics, Automotive, Agricultural
Certification: TS16949, RoHS, ISO
Item Name: Custom Plastic Parts
Other Materials: PP PA PS PE PC PVC ABS
MOQ: 200 Pieces

###

Samples:
US$ 0/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Product Description
Products Name Injection Molding Parts
Products category Injection Molding Parts
Material EPDM,NR,SBR,Nitrile, Silicone, Fluorosilicone, Viton(FKM), Neoprene, Urethane(PU), Polyacrylate(ACM), Ethylene Acrylic(AEM),  HNBR, Butyl(IIR), plastic like material (TPE, PU, NBR, silicone, NBR+TPE etc)
Size All size and thickness available.
Shape capable of all shapes as per drawing
Color Natural,black, Pantone code or RAL code, or as per client’s samples or requirements
Hardness 20°~90° Shore A, usually 30°~80° Shore A.
Surface finishing Texture (VDI/MT standard, or made to client’s sample), polished (high polish, mirror polish), smooth, painting, powder coating, printing, electroplating etc.
Drawing 2D or 3D draiwng in any image/picture format is OK
Free sample Yes
OEM/OEM Yes
Application Household, electronics, for vehicles like GM, Ford, Renault, Honda. Machinery, hospital, petrochemical, Military and Aerospace etc.
Market Europe, North America, Oceania
Quality certification ISO 90001:2008, TS16949, FDA, REACH, ROHS, SGS
QC Every order production will get more than 10 times regular check and 5 fives times random check by our professional QC. Or by Third party appointed by customer
 
Mold Molding Process Injection molding, mold processing, extrusion
Mould type processing mold, injection mold, extrusionmold
Machines 350T vacuum pressing machine and other pressing machine at 300T,250T and so on
Tooling equipment Rubber tension tester, Rubber vulcanization instrument, Durometer, calipers, ageing oven
Cavity 1~400 cavities
Mould Life 300,000~1,00,000 times
 
Production Production capacity finish each mold of product in 3 minutes and working on 3 shifts within 24 hours
Mold lead time 15~35 days
Sample lead time 3~5 days
Production time usually 15~30 days, should be confirmed before order
Loading port Hangzhou, Shanghai, Ningbo or as required

What Is Injection Moulding?

Injection molding is a process of producing precision-molded parts by fusing raw plastics and guiding them into a mold. The main components of an injection mold are a hopper, barrel, and reciprocating screw. Before injection, the raw plastics are mixed with coloring pigments and reinforcing additives.

Characteristics of injection molded parts

Injection molded parttInjection molding is the process of manufacturing plastic parts. It uses thermoplastic, thermoset, or elastomers to manufacture components. The range of materials is enormous and includes tens of thousands of different polymers. They are blended with other materials and alloys to produce a wide range of properties. Designers select the appropriate materials for the job based on the properties and functions desired in the finished part. During the mold design process, mold materials must be carefully chosen, as different materials require different molding parameters.
Injection molding requires precise tolerances of the temperature and strain levels. The maximum strain level is about 0.15 percent. It is possible to adjust these parameters to meet the requirements of an injection molding project. The resulting products can be easily checked for quality by measuring the strain and temperature of the mold inserts in real time.
Injection molding is known for its laminar flow of the polymer. However, there is still a possibility for side-to-side thermal variations in the part forming cavity. This is illustrated in FIG. 4. The part has high and low sheared areas; the higher sheared areas flow on the bottom side of the part, while the lower sheared areas flow on the top side.
Injection molding is used to make many different types of plastic parts, from small parts to entire body panels of a car. These parts can be made from a variety of different materials, such as polypropylene for toys and ABS for consumer electronics. They can also be made from metal, such as aluminum or steel.
The melting temperature of plastic parts must be appropriate for the project’s specifications. The mold should be large enough to produce the parts desired. This will minimize the impact of uneven shrinkage on the product’s dimensional accuracy. In addition to the temperature, a mold must be designed with the material’s properties in mind.

Tooling fabrication

Injection molded parttInjection molded parts are produced using molds. This process is a complex process that requires customization to ensure proper fit and function. The main component of a mold is the base, which holds the cavities, ejectors and cooling lines. The size and position of these components are crucial to the production of quality parts. Incorrectly sized vents can cause trapped air to enter the part during the molding process. This can lead to gas bubbles, burn marks, and poor part quality.
The material used for tooling fabrication is usually H-13 tool steel. This steel is suitable for injection molded parts as it has a low elongation value. The material used to fabricate tooling for injection molded parts typically has a high yield strength. The material used for injection moulding tooling is typically 420 stainless steel or H-13 tool steel. These materials are suitable for most injection molding processes and have comparable yield strength compared to wrought or MIM parts.
Another important part of tooling fabrication is the design of the mold. It is important to design the mold with a draft angle, as this will make ejection easier and reduce costs. A draft angle of 5o is recommended when designing a tall feature. Choosing a draft angle is essential to ensuring that the plastic part is free from air bubbles after injection molding.
Injection moulding tooling costs can account for as much as 15% of the cost of an injection moulded part. With innovation in mould materials and design, tooling fabrication can be more efficient and cost-effective.

Surface finishes on injection molded parts

Injection molded parttSurface finishes on injection molded parts can have a variety of effects on the part’s appearance and performance. Different materials lend themselves to different kinds of surface finishes, with some plastics better suited for smooth, glossy finishes than others. The type of surface finish is also affected by several factors, including the speed of injection and the melt temperature. Faster injection speeds help improve the quality of plastic finishes by decreasing the visibility of weld lines and improving the overall appearance of the parts.
For a smooth plastic surface finish, some companies require a high level of roughness on the part. Others may prefer a more rough look, but both options can have their benefits. The type of surface finish chosen will depend on the part’s purpose and intended application. For example, a glossy plastic finish may be preferred for a cosmetic part, while a rougher finish may be better suited for a mechanical part that must be tough and cost-effective.
Surface finishes on injection molded parts are often customized to match the application. For example, some parts require a rough surface finish because they require a greater amount of friction. These parts may require a sandblasting process to achieve the desired texture. Other processes can also be used to control plastic texture.
The type of surface finish depends on the materials used, as well as the design and shape of the part. The type of material used, additives, and temperature also have an impact on the surface finish. It is also important to consider surface finishes early in the design process.

Importance of a secondary operation to improve accuracy

While most injection molded parts do not require secondary operations, some components do require this type of processing. The surface finish of a component will determine how well it functions and what other secondary operations are necessary. Depending on the part’s function, a smooth or textured surface may be appropriate. Additionally, some parts may require surface preparation before applying adhesives, so an accurate surface finish can make all the difference. In order to achieve the desired finish, the injection molder should have experience molding different materials. He or she should also have the knowledge of how to simulate the flow of a mold. Also, experienced molders know how to mix materials to achieve the desired color, avoiding the need for secondary painting processes.
Injection molding is a complex process that requires precision and accuracy. The optimal temperature of the melted plastic must be chosen, as well as the mold itself. The mold must also be designed for the correct flow of plastic. In addition, it must be made of the best thermoplastic material for the part’s design. Finally, the correct time must be allowed for the part to be solid before it is ejected. Many of these issues can be overcome with specialized tooling that is customized to the part’s design.
Injection molding offers the opportunity to make complex parts at low cost. It also allows manufacturers to make parts with complicated geometries and multiple functions.
China CNC Machining Plastic Injection Molding Parts Custom Made Plastic Parts     standard tolerances for injection molded partsChina CNC Machining Plastic Injection Molding Parts Custom Made Plastic Parts     standard tolerances for injection molded parts
editor by czh 2022-12-12

China CNC Machined SUS Parts CNC Milling Machine Manufacturers Customer Machining Prototyping and Small/Big Quantity Products Service common injection molded parts

Product Description

CNC machined sus parts cnc milling machine manufacturers customer machining prototyping and small/big quantity products service

 

Factory: Rollyu Precision Machining Co., Ltd
Production Description Customized Aluminum/Steel/Plastic CNC Turning/ Machining / Milling Parts for Non-Standard Devices/Medical Industry/Electronics/Auto Accessory/Vision Lighting
Processing Machining, Turning, Milling, Grinding, Wire-EDM,Fabrication service etc.
Material for CNC Machining processing 1) Aluminum – AL 6061-T6, 6063, 7075-T,5083,6063,6082,5052,2A12 etc.
2) Stainless steel – SS 201,SS301 SS303,SS304,SS316L, SS416L,17-4(SUS630),440C, 430 etc.
3) Steel – 4140,4340,Q235, Q345B,20#,Cr12MoV,D2,A2,4140,4150,P20,S136,M2,O2, SKD11,CRS, etc.
4) Titanium – TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc.
5) Brass – C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90) etc.
6) Copper – bronze,Phosphor Bronze, Magnesium alloy,  etc.
7) Plastic – Peek, Nylon, G-10, Acrylic,Anti-Static Acetal Tan (Tecaform SD) , PC,ABS, etc.
8) Food class ,Medical class- such as POM, Delrin, etc.
9) Aerospace class – PEI+30%GF,PEEK+30%GF,PC+30%GF,PU,PTFE,PE,PVC etc.
10) Rollyu Precision handles many other type of materials, please kindly contact us if your required material is not listed above.
Finish For Aluminum parts – Clear anodized, Color anodized, Hard anodized, Sandblasting, Chemical film, Brushing, Polishing, Painting, Silk screen printing,Etching,  Laser marking, etc.
For Stainless steel parts  – Polishing, Passivation,PVD, Sandblasting, Black oxide, Electrophoresis black, Painting, Silk screen printing,Etching,  Laser marking, etc.
For Steel parts – Polishing, Black oxide, Nickel /Zinc/Gold/ Chrome/Silver plating, Carburized, Powder coating,electrophoresis, QPQ(Quench-Polish-Quench), Heat treatment,
Painting, Silk screen printing,Etching,  Laser marking, etc. etc.
For Brass parts – Nickel /Zinc/Gold/ Chrome/Silver/Titanium plating, Electrophoresis black, Powder coating,Painting, Silk screen printing,Etching,  Laser marking, etc. 
For Plastic parts – Plating (ABS), Brushing (Acylic),Painting, Silk screen printing,Etching,  Laser marking, etc.
Rollyu Precision handles many other type of finish, please kindly contact us if your required finish is not listed above.
Tolerance Minumum tolerance +/- 0.05mm (+/- 0.0005″)
Surface roughness  Ra 0.1~3.2
Drawing format Step/Igs/PDF/DWG/DXF, etc.
Testing equipment CMM (Coordinate Measuring Machine),Height gauge, Caliper,  Hardness tester, Roughness tester, Projector machine, Pin/Angle/Block/Plug/Thickness/Thread/Radius  gauge,etc. 
MOQ 1 piece
Lead time 2 weeks after received order.
Certificate ISO9001, ISO13485.
Inspection processing IQC,IPQC, FQC, QA.
Capacity CNC turning work range: φ0.5mm-φ650mm*600mm.
CNC milling work range: 880mm*1300mm*600mm.
Application Automation, Medical device, Consumer Electronics, Security, IoT, Energy, etc. 

Rollyu Precision Machining Co., Ltd located in HangZhou, China, is a mechanical manufacturer providing a wide range of custom specialty plastic injection molded parts, cnc machining parts, Sheet Metal Fabrication, Liquid Silicone Rubber Injection Parts, Aluminum Extrusion, Sub-assemblies ,along with advanced over molding capability.
Serving markets including Security systems, Fire systems, Marine ,Health care, Medical Devices, Personal Care, Networking, Internet of Things (IoT), Xihu (West Lake) Dis.n Machine Interaction (HMI) , Consumer Electronics, Telecommunications and Renewable Energy as well as many others with solutions for a variety of challenges they face in these high paced, ever-changing industries. Rollyu Precision provides mechanical components and sub-assemblies to many of the top companies worldwide.

With many years of mechanical parts manufacturing, we continue to expand our capabilities and are well positioned to offer concept-to-commercialization solutions. Rollyu Precision can provide over molding capabilities to streamline timelines and costs. If medical device engineering and design for manufacturing services are needed, our project teams are aligned to provide those services, including tool and fixture fabrication and rapid prototyping.

Examples Of Services And Capabilities Include:

  • Engineering DFM Services
  • CNC Swiss Machining, Milling, and Turning
  • Over molding and Injection Molding
  • Plastic Injection Molded Parts
  • Liquid Silicone Rubber Injection Parts
  • Aluminum Extrusion
  • Sheet Metal Fabrication
  • Sub-assemblies

For a more complete list, please send us inquiry.

Rollyu Precision has unrivalled links with the companies Medical device, Instrumentation, Security systems, IoT, HMI, Automation, Photonics, Energy, Marine and many others industries. We have mutually beneficial relationships with nearly 150 companies around the world, from the smallest company to the largest enterprise. 
For our partners, we deliver world-class machining parts, plastic molded parts , silicone rubber parts, sheet metal fabrication, heat sink, and assembly components. We can manufacture from single parts to sub-assemblies to meet challenges and your goals. 

Quick Response After-sales Service

Rollyu Precision after sales service is based on our detailed knowledge of our team, our machines and our accumulated experiences, thus enabling our technicians to rapidly identify and resolve any potential problems.

A periodic diagnosis minimizes the risk of unexpected events and increases productivity. Moreover, all basic components are checked 100% before shipment.

We look forward to your RFQ or a trial order firstly.

Thank you for your time for having a visist at our on-line shop.

Sincerely

Tina/Rollyu Precision
 
 

FAQ
Q1: Are you a trading company or a factory ?
A1: We are a manufacturer specialized in precision parts OEM, Machining parts,  Plastic injection molding, Plastic parts, Silicone and rubber parts, Heat sink, sheet metal fabrication as well as Sub-assembly.

Q2: Do you accept to manufacture the customized products based on our design?
A2: Yes, we are a professional factory with an experienced engineering team, would like to provide the OEM service.

Q3: How can I get the quotation?
A3: We will offer you the quotation within 24 working hours after receiving your detailed information. In order to quote you faster and more accurate, please provide us the following information together with your inquiry:
1) CAD or 3D Drawings
2) Tolerance.
3) Material requirement
4) Surface treatment
5) Quantity (per order/per month/annual)
6) Any special demands or requirements, such as packing, labels, delivery,etc.

Q4: Will my drawings be safe after sending to you?
A4: Sure, we will keep them well and not release to others without your permission.

Q5: How long is the lead-time for a mold and plastic parts, machining parts, sheet metal fabrication?
A5: It all depends on the mold (parts) size and complexity. 
Normally, the lead time is 18-20 days for molds, 15-20 days for plastic parts. If the molds are very simple and not big, we can work out within 15 days.
The lead time for machining parts is around 2-4 weeks.
For sheet metal fabrication the lead time is around 3-5 weeks.

Q6: I have no 3D drawing, how should I start the new project?
A6: You can supply us the sample or provide us the product sizes and let us know the detailed requirements, our engineers will help you to work out the 3D drawing.

Q7: If you make poor quality goods, will you refund our fund?
A7: As a matter of fact, we won’t take a chance to do poor quality products. Meanwhile, we manufacture good-quality products until your satisfaction.

Q8: Is it possible to know how are my products going on without visiting your factory?
A8: We will offer a detailed production schedule and send weekly reports with digital pictures and videos which show the machining progress.
 

To Be Negotiated 1 Piece
(Min. Order)

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Application: Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory, Printing Machine
Standard: GB, EN, API650, China GB Code, JIS Code, TEMA, ASME
Surface Treatment: Clear
Production Type: Batch Production
Machining Method: CNC Machining
Material: Nylon, Steel, Plastic, Brass, Alloy, Copper, Aluminum, Iron, Stainless Steel

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Samples:
US$ 1/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

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Factory: Rollyu Precision Machining Co., Ltd
Production Description Customized Aluminum/Steel/Plastic CNC Turning/ Machining / Milling Parts for Non-Standard Devices/Medical Industry/Electronics/Auto Accessory/Vision Lighting
Processing Machining, Turning, Milling, Grinding, Wire-EDM,Fabrication service etc.
Material for CNC Machining processing 1) Aluminum – AL 6061-T6, 6063, 7075-T,5083,6063,6082,5052,2A12 etc.
2) Stainless steel – SS 201,SS301 SS303,SS304,SS316L, SS416L,17-4(SUS630),440C, 430 etc.
3) Steel – 4140,4340,Q235, Q345B,20#,Cr12MoV,D2,A2,4140,4150,P20,S136,M2,O2, SKD11,CRS, etc.
4) Titanium – TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc.
5) Brass – C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90) etc.
6) Copper – bronze,Phosphor Bronze, Magnesium alloy,  etc.
7) Plastic – Peek, Nylon, G-10, Acrylic,Anti-Static Acetal Tan (Tecaform SD) , PC,ABS, etc.
8) Food class ,Medical class- such as POM, Delrin, etc.
9) Aerospace class – PEI+30%GF,PEEK+30%GF,PC+30%GF,PU,PTFE,PE,PVC etc.
10) Rollyu Precision handles many other type of materials, please kindly contact us if your required material is not listed above.
Finish For Aluminum parts – Clear anodized, Color anodized, Hard anodized, Sandblasting, Chemical film, Brushing, Polishing, Painting, Silk screen printing,Etching,  Laser marking, etc.
For Stainless steel parts  – Polishing, Passivation,PVD, Sandblasting, Black oxide, Electrophoresis black, Painting, Silk screen printing,Etching,  Laser marking, etc.
For Steel parts – Polishing, Black oxide, Nickel /Zinc/Gold/ Chrome/Silver plating, Carburized, Powder coating,electrophoresis, QPQ(Quench-Polish-Quench), Heat treatment,
Painting, Silk screen printing,Etching,  Laser marking, etc. etc.
For Brass parts – Nickel /Zinc/Gold/ Chrome/Silver/Titanium plating, Electrophoresis black, Powder coating,Painting, Silk screen printing,Etching,  Laser marking, etc. 
For Plastic parts – Plating (ABS), Brushing (Acylic),Painting, Silk screen printing,Etching,  Laser marking, etc.
Rollyu Precision handles many other type of finish, please kindly contact us if your required finish is not listed above.
Tolerance Minumum tolerance +/- 0.05mm (+/- 0.0005")
Surface roughness  Ra 0.1~3.2
Drawing format Step/Igs/PDF/DWG/DXF, etc.
Testing equipment CMM (Coordinate Measuring Machine),Height gauge, Caliper,  Hardness tester, Roughness tester, Projector machine, Pin/Angle/Block/Plug/Thickness/Thread/Radius  gauge,etc. 
MOQ 1 piece
Lead time 2 weeks after received order.
Certificate ISO9001, ISO13485.
Inspection processing IQC,IPQC, FQC, QA.
Capacity CNC turning work range: φ0.5mm-φ650mm*600mm.
CNC milling work range: 880mm*1300mm*600mm.
Application Automation, Medical device, Consumer Electronics, Security, IoT, Energy, etc. 
To Be Negotiated 1 Piece
(Min. Order)

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Application: Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory, Printing Machine
Standard: GB, EN, API650, China GB Code, JIS Code, TEMA, ASME
Surface Treatment: Clear
Production Type: Batch Production
Machining Method: CNC Machining
Material: Nylon, Steel, Plastic, Brass, Alloy, Copper, Aluminum, Iron, Stainless Steel

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Samples:
US$ 1/Piece
1 Piece(Min.Order)

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Request Sample

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Customization:

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Factory: Rollyu Precision Machining Co., Ltd
Production Description Customized Aluminum/Steel/Plastic CNC Turning/ Machining / Milling Parts for Non-Standard Devices/Medical Industry/Electronics/Auto Accessory/Vision Lighting
Processing Machining, Turning, Milling, Grinding, Wire-EDM,Fabrication service etc.
Material for CNC Machining processing 1) Aluminum – AL 6061-T6, 6063, 7075-T,5083,6063,6082,5052,2A12 etc.
2) Stainless steel – SS 201,SS301 SS303,SS304,SS316L, SS416L,17-4(SUS630),440C, 430 etc.
3) Steel – 4140,4340,Q235, Q345B,20#,Cr12MoV,D2,A2,4140,4150,P20,S136,M2,O2, SKD11,CRS, etc.
4) Titanium – TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc.
5) Brass – C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90) etc.
6) Copper – bronze,Phosphor Bronze, Magnesium alloy,  etc.
7) Plastic – Peek, Nylon, G-10, Acrylic,Anti-Static Acetal Tan (Tecaform SD) , PC,ABS, etc.
8) Food class ,Medical class- such as POM, Delrin, etc.
9) Aerospace class – PEI+30%GF,PEEK+30%GF,PC+30%GF,PU,PTFE,PE,PVC etc.
10) Rollyu Precision handles many other type of materials, please kindly contact us if your required material is not listed above.
Finish For Aluminum parts – Clear anodized, Color anodized, Hard anodized, Sandblasting, Chemical film, Brushing, Polishing, Painting, Silk screen printing,Etching,  Laser marking, etc.
For Stainless steel parts  – Polishing, Passivation,PVD, Sandblasting, Black oxide, Electrophoresis black, Painting, Silk screen printing,Etching,  Laser marking, etc.
For Steel parts – Polishing, Black oxide, Nickel /Zinc/Gold/ Chrome/Silver plating, Carburized, Powder coating,electrophoresis, QPQ(Quench-Polish-Quench), Heat treatment,
Painting, Silk screen printing,Etching,  Laser marking, etc. etc.
For Brass parts – Nickel /Zinc/Gold/ Chrome/Silver/Titanium plating, Electrophoresis black, Powder coating,Painting, Silk screen printing,Etching,  Laser marking, etc. 
For Plastic parts – Plating (ABS), Brushing (Acylic),Painting, Silk screen printing,Etching,  Laser marking, etc.
Rollyu Precision handles many other type of finish, please kindly contact us if your required finish is not listed above.
Tolerance Minumum tolerance +/- 0.05mm (+/- 0.0005")
Surface roughness  Ra 0.1~3.2
Drawing format Step/Igs/PDF/DWG/DXF, etc.
Testing equipment CMM (Coordinate Measuring Machine),Height gauge, Caliper,  Hardness tester, Roughness tester, Projector machine, Pin/Angle/Block/Plug/Thickness/Thread/Radius  gauge,etc. 
MOQ 1 piece
Lead time 2 weeks after received order.
Certificate ISO9001, ISO13485.
Inspection processing IQC,IPQC, FQC, QA.
Capacity CNC turning work range: φ0.5mm-φ650mm*600mm.
CNC milling work range: 880mm*1300mm*600mm.
Application Automation, Medical device, Consumer Electronics, Security, IoT, Energy, etc. 

Designing Injection Molded Parts

Injection molded parts are designed to work together to form a whole. While the small plastic toys like Legos aren’t typically fabricated for assembly, these products still require precision measurements. For this reason, the designs of injection molded parts should be perfected for manufacturing. The designs should also minimize error potential.

Design considerations for injection molded parts

Injection molded parttWhen designing injection molded parts, it’s essential to consider the wall thickness of the part. Ideally, the wall thickness is uniform across the entire part. This allows the entire mold cavity to fill without restriction, and reduces the risk of defects. Parts that don’t have uniform wall thickness will have high stresses at the boundary between two sections, increasing the risk of cracks, warping, and twisting. To avoid such stresses, designers can consider tapering or rounding the edges of the part to eliminate stress concentration.
The wall thickness of the injection molded part is important because it affects many key characteristics. Therefore, it is critical to take proper care in choosing the wall thickness to avoid costly delays caused by mold problems or mold modification. The nominal wall thickness should be determined based on the function and stress requirements of the part. Similarly, the minimum wall thickness should be calculated based on acceptable stress. Too thin a wall can result in air traps and excessive plastic pressure.
Injection molded parts that have sharp corners are a common cause of defects. Sharp corners create stress concentrations, poor flow patterns, and increased injection mold wear. To minimize these problems, designers should keep inside corners and outside corners at half the wall thickness. This will help minimize stress and ensure the integrity of the part.
Another important design consideration for injection molded parts is the thickness of the ribs. They should be at least two-thirds of the outer wall. Thicker ribs may result in sink marks on the outer surface. Undercuts also complicate the mold design and increase the cost of the part.
Tolerance variation is also an important consideration. It depends on materials, process control, and tool design. Tolerance variation varies from molder to molder, and designers should discuss critical tolerance requirements with molders. If the part has to be manufactured to a particular tolerance, designers should consider options for mold revisions to minimize the tolerance variance. Additionally, designers may need to intentionally design extra clearance. To compensate for such variation, the molder may remove some steel or modify the design. In some cases, interference can be solved by welding.
Design considerations for injection molded parts should be discussed with material science professionals early in the design process. This is critical because changes to the mold design can be costly. Therefore, achieving the best possible result is critical. By following design guidelines, manufacturers can avoid common defects. A uniform wall thickness is also important because non-uniform thickness can lead to warping the part as it cools.
Another important factor for injection molded parts is the flowability of the material in the mold cavity. The resin should be able to flow easily around rounded corners. For example, a molded part with a curved undercut will not eject properly from the mold if there’s no space between the two sides. For this reason, designers should consider the flowability of the molded material before deciding on a design.

Adding a runner system to an injection molding machine

Injection molded parttThere are two main types of runner systems: hot runner systems and cold runner systems. In a hot runner system, a runner nozzle delivers the molten plastic into the mold cavity. A cold runner system does not require the use of a nozzle and acts as a conduit for the molten plastic.
The design of a hot runner mold should balance the activity of plastic solution and mold cavities. Ideally, a mold with two cavities is better balanced than one with three. However, it is important to remember that a three-cavity mold requires a manifold balance of human activities.
Plastic mold runner systems are crucial for ensuring consistent fill rates and pressure. Whether you are producing single or multiple-cavity plastic parts, a runner system will keep your processes consistent. When choosing a runner system, make sure you have the right one for your application.
Hot runner systems can reduce cycle times by as much as 10 to 30 percent. They help improve quality control and minimize material waste by keeping the plastic molten throughout the molding process. Moreover, they help save on plastic raw materials and energy. These features make them ideal for large production lines.
A hot runner system can also help prevent overfilling a cavity. Make sure that the volume of the hot runner is equal to the volume of the mold cavity. Otherwise, the plastic solution will be trapped inside the hot runner for too long and decompose.
Hot runner systems come in many varieties. One type of hot runner system is called the sprue hot runner system. This system uses a mechanical valve to open and close a nozzle. This type of hot runner is more effective and efficient than a general-purpose hot runner. However, it is also more expensive.
In a three-plate mold, the runner system is positioned between the core and cavity plates. When the mold is opened, the runner system automatically separates from the molded part. This eliminates the need for manual labor, but increases the cost of tooling.
The runner system is important for producing parts that are both thin and thick. The runner should be narrow but large so as not to create voids and improve the overall performance of the final product. Runner systems are also important for reducing the amount of energy needed to form and regrind the material.
A hot runner system is one way to improve the speed and accuracy of plastic molding. It helps avoid problems with waste by reducing the amount of plastic wasted. Furthermore, a hot runner system also prevents expensive repairs. By adding a runner system to an injection molding system, you will ensure better quality and precision, and avoid unnecessary downtime and costly repairs.
Hot runner systems are ideal for high-volume productions. However, they require a higher level of maintenance. In addition, hot runner systems are difficult to clean and often leave waste material. Hidden runners may also be inconvenient to remove, especially when changing materials or colors. They can also lead to sticking issues if they are made from thermally sensitive materials.

Using a thermally isolated cold injection unit

Injection molded parttThermostatic control of temperature in an injection molding process can make a significant impact on part quality. High mold temperatures should be regulated by using a temperature-controlled cooling unit. These devices are equipped with pumping systems and internal heaters. The temperature of the injected plastic determines the plastic’s flow characteristics and shrinkage. Temperature also influences the surface finish, dimensional stability, and physical properties of the finished product.
A thermally isolated cold injection unit allows mold operators to mold parts at lower temperatures than a conventional injection molding machine. The injection mold itself is composed of two steel halves. The two halves are connected by a mechanical hinge. During injection molding, a small amount of plastic is forced into the mold cavity. The injected plastic is then allowed to cool into a solid state. The molded part then falls out of the mold halves. The injected part then enters a bin to be collected.
The heat/cool injection molding process can improve the aesthetics of molded parts significantly. The effects of this technique are particularly apparent with amorphous resins, which do not form a skin during the injection phase. The molded parts have a higher gloss than with conventional molding techniques.
This process requires less clamping force than conventional injection molding and offers more design freedom. It also increases process capacity and materials savings. The process control for this process is more complex, with variables such as the amount of melt injection, water pressure, and water injection delay time.
The angle of repose is another criterion. A low angle indicates that the pellets are free-flowing, while an angle above 45deg indicates that the pellets are not free-flowing. This is important when processing nylon resins.
Plastic injection molding has made huge advances in recent decades. Today, most injection molds fall into one of two types: hot runner and cold runner. Each has its advantages and disadvantages. Understanding how they differ will help you decide which method is right for you.
Injection molding is a highly effective manufacturing process that gives manufacturers a competitive edge over their competition. Using this process produces high-quality plastic and metal parts with minimal waste and a low cycle time. The process is also extremely accurate and produces products with the perfect blend of flexibility and strength.
China CNC Machined SUS Parts CNC Milling Machine Manufacturers Customer Machining Prototyping and Small/Big Quantity Products Service     common injection molded partsChina CNC Machined SUS Parts CNC Milling Machine Manufacturers Customer Machining Prototyping and Small/Big Quantity Products Service     common injection molded parts
editor by czh 2022-11-25