China Custom Custom Silicone NBR CZPT Molded Silicone Rubber Gasket Seal Part for Auto Industry roto mold vs injection mold

Product Description

CZPT partsa are made by molding tooling with all kinds of material, are widely used for lots of area,such as machinery,construction,building etc
 Production Description

Item Name Molded rubber part
Material Silicone, EPDM, PVC, TPE, ,Neoprene, etc
Color Black, white or as client’s requirement
Hardness 30~90ShA
Dimension As client’s requirement
Temperature range ~50 to 380ºC
Function Sealing ,waterproof,dust proof, anti-slip, vibration resistant
Application Medical industry, machinery industry, automotive industry, etc
Process Molding or Injection
Certification SGS, ROHS, REACH, FDA, etc
OEM Welcome to customized

 Plastic Injection Mould making
1.Samples/Drawing &Requirement from you
2.Mould design:we will Communicate and Exchange the opinion with you after you place order.
3.Material Purchase:Steel cutting and Mould base tooling.  
4.Assembling.
5.Inspection of mould : following and controlling the tooling processing. 
6.Mould testing:We will inform you the date.Than will send the sample’s inspection report&injection parameters with the sample to you!
7.Your instruction &confirmation for shipment.
8.Ready made mould before packing.
9.We provide any differeny kinds of plastic injection mould, blow mould, silicone mould, die casting mould service.

Plastic molding Specification    
1. Professional manufacturer,design,production injection mould and stamping mould quality control 
2. rich export experience plastic injection mould and stamping mould
3. Reasonable price of design mould 
4. Cavities: single or as per your requirements cavity
5. Treatment:  S45C Pretreat>25Hrc,And Nitriding
6. Mould Steel: Cavity ,Core and slide: P20 ,2738,2136 available Moldbase :LKM available
7. Standard:DEM ,HUSKY,available
8. Hot runner: according to your demand
9. Life time: >300 Thousand Times
10. Package: Plywood case, anti-rust paint 
The property and advantage of our rubber gasket
1.smooth surface without any burr
2.super sealing performance, for blocking water, wind, dust, noise outside
3.Weather resistant(Ozone, UV, freezing cold, sunlight)
4.excellent flexibility and anti-deformation
5.Widely temperature range(~40~300ºC)
6.Chemical and water resistance

The property of various of material for Rubber gasket is as below,
1. the property of NR
 It has good wear resistance, high elasticity, breaking strength and elongation, But in the air, it is easy to get age, and it is get sticky when it get in touch with heat, which is easy to expand and dissolve in mineral oil or gasoline, but it is resistant to strong acid, but not to Alkali . working temperature is -50~70ºC.
2. the property of EPDM
Weather ability, aging resistance, CZPT resistance, chemical stability are excellent, and CFCS and a variety of refrigerants. Working temperature is -50~150
3. the property of silicone
It has excellent heat resistance, cold resistance, CZPT resistance and atmospheric aging resistant.Good electrical insulation performance,The tensile strength and wear resistance are generally poor and has non- oil resistant. The working temperature is -55~250ºC
4. The property of NBR
Good oil resistance, heat resistance, abrasion resistance, solvent resistance and high – pressure oil,But it is not suitable for CZPT solvents, such as ketones, ozone, nitro-hydrocarbons, and chloroform. The working temperature is -40~120 ºC
5. the property of CR
It has good elasticity, wear resistance and atmospheric aging resistance. It is not afraid of violent distortion and flammability.Chemical stability. The working temperature is -40~100 ºC
6. The property of FKM
Excellent high temperature resistance,And have excellent chemical resistance, most oil and solvent (other than ketones and esters).cold resistance is not good.
6. The property of PU
High strength, excellent wear resistance, good oil resistance and solvent resistance,,In particular, it has good anti-swelling properties for lubricating oil and fuel oil,Good CZPT resistance. But it’s not high temperature. The working temperature is -45~110 ºC.
 About us
These years, We are working on various project of customers and long term working in rubber industry. We have faith in giving your professional advice on your particular project.
At present, our market have been expanded to more than 30 countries, and still growing.
First we will get drawing or sample from our client to check their design. If there is no drawing or sample, we will ask some question about product concept and design idea.
Then according to what application environment of rubber part, we will help design drawing and what raw material is best for rubber part. OEM parts are ok for us.
 We can meet your requirement of the design and use for different shapes and material,
 And high/low temperature, foam/sponge or CZPT rubber profile, fire resistance and special property of any rubber profile and molding rubber part
The advantage of our company
1.We have excellent complete production line with advanced production and test equipment
 Adding First-class technicians, so that we can  offer you the competitive price and high quality ,fast delivery time .
2.We have a special drawing design department to design the correct drawing data meeting your requirements. Then, we will use CAD or other format drawing to carry on tracking the production of tooling, sample ,mass goods. To avoid something wrong to each process. To make sure all of dimension are correct.
3.We also has special production supervision department. The engineer staff will Supervise  each process from the manufacture of tooling to the production of mass goods.
Reduce something wrong happened, finally offer you parts meeting your technology requirement.
4. All of Raw material are past quality certification,In the meantime, we will first delivery test report of rubber part when all of mass goods are finished. And make sure the quality meet your requirement, then make shipment

  • Packing and shipment
  • Four buffer is packaged with 1 plastic bag, then certain quantity of mounting are put into carton box.
  • Carton box insider rubber mounting is with packing list detail. Such as, item name, the type number of rubber mounting, quantity of rubber mounting, gross weight,net weight, dimension of carton box,etc
  • All of carton box will be put on 1 non-fumigation pallet, then all carton boxes will be wrapped by film.
  • .We have our own forwarder which has Rich experience in delivery arrangement to optimize the most economic and quickest shipping way, SEA,  AIR,  DHL, UPS ,FEDEX, TNT , etc.The certification of our company
  • Why choose us?
    1.Product: we specialize in rubber molding,injection and extruded rubber profile.
       And complete advanced production equipment and test equipment
    2.High quality:100% of the national standard has been no product quality complaints
    the materials are environmentally friendly and the technology reaches the international advanced level
    3.The competitive price:we have own factory, and the price is directly from factory. In additional,perfect advanced production equipment and enough staff. So the price is the best.
    4.Quantity :Small quantity is available
    5.Tooling:Developing tooling according to drawing or sample, and solve all of questions
    6.Package: all of package meet standard internal export package, carton outside, inside plastic bag for each part; as your requirement
    7.Transport:We have our own freight forwarder which can guarantee our goods can be delivered safely and promptly by sea or air
    8.Stock and delivery:Standard specification,lots of stocks, and fast delivery
    10. Service:Excellent service after-sales
     
    Common Questions
  • What is the minimum order quantity for your rubber products?
  • Answer:We didn’t set the minimum order quantity,1~10pcs some client has ordered.
  • If we can get sample of rubber product from you?
  •  Answer:Of course, you can. Feel free to contact me about it if you need it.
  • Do we need to charge for customizing our own products? And if it is necessary to make tooling?
  • Answer: if we have the same or similar rubber part, at the same time, you satisfy it.
     Well, you don’t need to open tooling
    New rubber part, you will charge tooling according to the cost of tooling.
    In additional,if the cost of tooling is more than 1000 USD, we will return all of them to you in the future when purchasing order quantity reach certain quantity our company rule
  • How long you will get sample of rubber part?
  • Answer: Usually it is up to complexity degree of rubber part. Usually it take 7 to 10work days.
  • How many your company product rubber parts?
  •  Answer:It is up to the size of tooling and the quantity of cavity of tooling. If rubber part is more complicate and much bigger, well maybe just make few, but if rubber part is small and simple, the quantity is more than 200,000pcs.
  • Silicone part meet environment standard?
  • Answer:Our silicone part are all high grade 100% pure silicone material. We can offer you certification ROHS and SGS, FDA .Many of our products are exported to European and American countries. Such as: Straw, rubber diaphragm, food mechanical rubber, etc.
     
     FAQ
    1. Are you factory or trade company?
    We  specialize in manufacturing rubber and plastic manufacturer, founded in 2004
    2. What’s the order process?
    A: Inquiry—provide us all clear requirements, such as drawing with detail technical data, or original sample
    B: Quotation—official quotation sheet with all detail specifications including price terms,shipment terms,etc
    C: Payment terms—100% prepaid the cost of tooling before making new sample
                    T/T 30% in advanced, and the balance according to the copy of the B/L
    D:Develop tooling—open the mould according to your requirement
    E:Sample confirmation—send you the sample for confirmation with test report from us
    F:Production—mass goods for order production
    G:Shipping— by sea, air or courier. Detailed picture of package will show you.
     
    3. What other terms of payment you use?
       PayPal, Western Union

 

After-sales Service: Good After-Sales Service
Warranty: 20 Years Old
Material: EPDM, Nr, Silicone, FKM, NBR, etc
Process Technology: Die Cutting, Vaculation, Injection
Type of Enterprise: Manufacturer
Certification: SGS, FDA, Reach, RoHS, etc
Samples:
US$ 0.1/Piece
1 Piece(Min.Order)

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Customization:
Available

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Injection molded partt

Designing Injection Molded Parts

Injection molded parts are a great way to produce fast, reliable parts without having to spend much time on post-processing. Whether you’re designing a small component or a large vehicle, you can expect your parts to be ready to use right away. Because of their high-speed production cycles, you can expect your parts to be delivered within 30 to 90 seconds.

Design considerations for injection molded parts

When developing a medical device, there are several design considerations to be made to create a quality injection molded part. Typically, product designers want to minimize the amount of material needed to fill the part while still maintaining the structural integrity of the product. To this end, injection molded parts often have ribs to stiffen the relatively thin walls. However, improper placement of ribs or projections can create molding problems.
Design considerations for injection molded parts include the overall shape and finish of the part. There are several ways to make the part look better. One way is to make the surface smoother and less pronounced. This will help the material flow evenly throughout the mold and minimize the risk of parting lines. Another way to reduce the risk of sink marks is to reduce the thickness of ribs relative to the nominal wall thickness of the part.
A common problem encountered when designing injection molded parts is sink marks. These can be difficult to avoid. A molder may not be willing to guarantee the product’s surface is sink-free, so designers must make sure that sink marks are minimized. To prevent these problems, the design of the parts should be as simple as possible.
Injection molded parts can also have complex geometries, and the design process is incredibly flexible. A good molder will be able to reproduce complex parts at low cost. To get the best possible results, designers should discuss the design and process with the molder. They should also discuss with the molder any critical tolerance specifications. The designer should also consider reworking the mold if necessary.
The wall thickness of a plastic injection molded part should be consistent. This is important because it influences the part’s functionality and performance. An uneven wall thickness can result in sink marks, voids, and other undesirable effects. It may also result in excessive plastic pressure or cause air traps.

Materials used in injection molded parts

When designing a product, materials used in injection molding are an important factor in the end result. These materials vary in strength, reusability, and cost. Understanding these differences is essential for ensuring the best product. In addition, understanding the characteristics of these materials can help you plan your budget and determine which ones are right for your application.
Choosing the wrong material can have serious consequences. In addition to premature component failure, the wrong choice can also increase your cost. To avoid such an occurrence, it’s a good idea to seek expert advice. Expert consultations can help you understand the factors that are important for your particular plastic molding project.
Fortron PPS: This thermoplastic resin offers excellent strength, toughness, and chemical resistance. It’s also stiff and durable, which makes it ideal for demanding industrial applications. Other common plastics include Nylon 6/6, which is strong and lightweight. Its high melting point makes it a great replacement for metal in certain environments. It also offers desirable chemical and electrical properties. PEEK is another common material used in injection molding.
ABS: Another engineering grade thermoplastic, ABS offers excellent heat resistance and chemical resistance. The disadvantage of ABS is its oil-based composition. As a result, ABS production creates noxious fumes. Nylon is another popular plastic for injection molding. Nylon is used in many different applications, from electrical applications to various kinds of apparel.
Injection moulding is a process where raw material is injected through a mold under high pressure. The mold then shapes the polymer into a desired shape. These moulds can have one or multiple cavities. This enables manufacturers to create different geometries of parts using a single mould. Most injection moulds are made from tool steel, but stainless steel and aluminium are also used for certain applications.

Characteristics of injection molded parts

Injection molded parttInjection molded parts exhibit a range of mechanical and physical properties. These properties affect the performance of the parts. For example, they can affect electrical conductivity. Also, the degree of filling in the parts can determine their mechanical properties. Some studies have even found that filling content can affect the dimensional accuracy of the parts.
To ensure the highest quality of the molded parts, it is important to inspect the machines and processes used to manufacture them. Proper maintenance can prevent mistakes and prolong the service life of the components. Moreover, it is essential to clean and lubricate the machine and its components. This will also reduce the possibility of mold errors.
The temperature and pressure characteristics of the injection mold can be characterized with the help of a simulation tool. For example, in a simulation environment, the injection pressure can be set as a profile and is equal to the pressure in the flow front. Moreover, the maximum injection pressure can be set as a value with minimum dependence on the flow rate. The temperature of the material used in the injection mold should be within a recommended range.
The temperature and pressure of the mold cavity must be monitored to ensure proper ejection. The temperature of the injection mold cavity is usually set at a temperature slightly above the ejection temperature. This can be manually or automatically. If the temperature is too high, the part will not be able to eject. The rapid temperature change can cause the part to warp. The same applies to the cooling time of the mold and cavity.
The thickness of the molded part should be uniform. If the injection mold does not conform to the required thickness, sink marks may be visible. A minimum of 2.5 mm between the outer and inner diameters is required for proper ejection.

Common problems encountered

There are several common problems encountered during the production of injection-molded parts. One of the most common of these is sink marks. These appear on the surface of the part and are a result of uneven cooling of the plastic within the mold. This problem can be caused by poor mold design, insufficient cooling time, and/or low injection pressure.
The first common problem occurs when the mold is not tightly clamped. This causes the molten plastic to be forced out of the mold. Other problems may occur due to the wrong clamping pressure or temperature. In these cases, the clamping force should be increased or the mold design should be revised to allow the plastic to flow properly through it. In addition, a poor quality mold may cause flash or burrs.
Another common problem is wavy patterning. These two defects can affect the appearance and functionality of the part. To avoid these problems, work with an experienced injection molding manufacturer who has experience in these types of parts. They will be able to troubleshoot and minimize any potential risks.
One of the most common problems encountered in injection molding is discoloration. A discolored part will be black or rust-colored. This problem is caused by an excess of air in the mold cavity, and can be avoided by reducing the injection speed. Ventilation systems can also be adjusted to minimize the chances of these problems.
Defective molds can cause a negative impact on the bottom line. By understanding the common problems encountered during injection molding, you can better avoid these problems and make your products as attractive as possible.

Fasteners used in injection molded parts

Injection molded parttInjection molded parts often use fasteners for securing fastener elements in place. As shown in FIGS. 7 and 8 (two separate views), the fastener elements are integrated with the molded product, and they extend from one side. The fastener elements are designed to engage loop elements in the overlying layer. The palm-tree shaped fasteners are especially well-suited for this purpose, as their three-dimensional sides engage more loops than flat sides. These features result in a more secure closure.
When fasteners are used in injection molded parts, the plastic is injected into a mold, with the fastener integrated. In addition to self-tapping screws, other plastic fasteners can include moulded or pre-drilled pilot holes. This method avoids the need for a secondary assembly step and ensures an easy fit. These screws also have other advantages, including a smaller thread profile and lower radial stress, which prevents boss damage.
Another type of fastener commonly used in injection molded parts is a boss. This type of fastener is typically larger than the nut and the pilot hole. An undersized boss can lead to warpage during the injection molding process and cause a product to fail in the field.
Another type of fastener used in injection molded parts is a thread insert, which is usually a stainless steel A2 wire. There are different versions of this fastener for different materials, including carbon fiber reinforced plastic. And the fastener can be modified to adjust the size of the hole.
These fasteners are used in many different types of injection molded parts. Some parts are used to fix a variety of cosmetic issues, such as minor sinks. While these are not defects, they may not look perfect, and they can affect the overall appearance of a product. If you want to improve the appearance of an injection molded part, you can add fibers and glass fibers, as well as colorants.
China Custom Custom Silicone NBR CZPT Molded Silicone Rubber Gasket Seal Part for Auto Industry   roto mold vs injection moldChina Custom Custom Silicone NBR CZPT Molded Silicone Rubber Gasket Seal Part for Auto Industry   roto mold vs injection mold
editor by CX 2023-05-08