What is POM granules?
POM has high strength, stiffness, good elasticity and good wear resistance. Its mechanical properties are excellent, the specific strength can reach 50.5MPa, the specific stiffness can reach 2650MPa, and the metal is very close. The mechanical properties of POM vary little with temperature, and the change of copolymerized POM is slightly greater than that of homopolymer POM. The impact strength of POM is higher than that of ABS and PC. POM is sensitive to gaps, and gaps can reduce impact strength by as much as 90%. The fatigue strength of POM is very prominent, and after the action of 10 alternating loads, the fatigue strength can reach 35MPa, while PA and PC are only 28MPa. The creep property of POM is similar to that of PA, only 2.3% at 20ºC, 21MPa and 3000h, and the effect of temperature is very small. The friction factor of POM is small, the wear resistance is good (POM>PA66>PA6>ABS>HPVC>PS>PC), the limit PV value is large, and the self-lubrication is good. When POM products are grinding, it is easy to produce scream-like noise under high load.
What are the difference between of homopolymer POM and copolymer POM ?
We call the monomer that makes up the plastic, and synthetic polymers are made of this compound (monomer) by chemical bonds to each other to form a polymer called homopolymer; Polymers polymerized by two or more monomers are called copolymers (copolymers). Polyformaldehyde resins are polymers that are interlinked between oxylene (CH2O)n-. Because the second monomer component (copolymerization component) is added to the seized steel, it is called copolymerization formaldehyde.
Due to the difference in molecular structure, homopolymer POM has higher crystallinity, melting point and mechanical strength, but poorer thermal stability; while copolymer POM has better thermal stability and processing performance, but slightly lower mechanical strength. In terms of applications, homopolymer POM is suitable for the production of high-precision, high-strength mechanical parts, such as gears, bearings, etc.; while copolymer POM is more suitable for the production of complex shapes, high dimensional stability requirements of products, such as electronic and electrical components, automotive interior parts, etc.
| Product name |
POM polyformaldehyde granules /pellets/chips |
| Appearance |
white ,black ,customized color |
| Advantages |
1. POM has high strength, stiffness, good elasticity and good wear resistance.
2. POM has good electrical insulation and is almost unaffected by temperature and humidity.
3. Crystallized material with narrow melting range.
4. Light weight . |
| Custom made service |
Yes ,we also provide the material according to you model and specification sheet , also provide technicial support . |
Injection molding process of POM granules :
POM (polyoxymethylene) injection molding process is a common plastics processing method, which involves heating the POM raw material to a molten state, then injecting it into the mold through an injection machine, and finally cooling and molding . The following are the key parameters and considerations for the POM injection molding process:
1. Drying treatment: POM water absorption is small, generally 0.2% -0.5%, but in general, can be processed without drying, but the wet raw materials must be dried. Drying temperature of 80 ºC or more, time 2-3 hours or more 3.
2. Selection of injection molding machine: There is no special requirement for the injection molding machine except for the requirement that the screw has no stagnation area, and the usual injection molding machine will do3.
3. Mold and gate design: the temperature control of ordinary molds is 80-90ºC, and the mold temperature can be increased to 120ºC for thin-walled and long-flow and complex shape products. The diameter of the runner is 3-6mm, the length of the gate is 0.5mm, the size of the gate depends on the thickness of the rubber wall, the diameter of the round gate should be at least 0.5-0.6 times of the thickness of the product; the width of the rectangular gate is usually 2 times or more than the thickness, the depth of the wall thickness is 0.6 times, the demolding slope is between 40′-130′ (or 40′-1°30′).
Sample policy
1. Providing a small kg of sample for testing with Freight Collect.
2. Sample Payment Can be T/T, Paypal, or Trade Assurance.
3. The sample can be Delivered within 3 days after confirmation.
4. Technical support during sample testing.
5. You can ship it by your courier or our SF, TNT, UPS, FEDEX, DHL, etc.
6. We can refund the sample fee when you place an official order later.
For more than 16 years, JULIER Technology Co., Ltd. has been a production, research and development, and sales organization that specializes in creating and developing different technical plastics. Modified plastics and raw materials are our specialty. We can give you a good price and deliver a lot of things quickly because we have our own factory.
We have extensive experience offering high-quality, reasonably priced alternative materials or customized plastic that meets customer needs. Our content is highly favored by clients from various nations.
The majority of plastics, raw materials, and modified reinforced resins available on the market, including PA6, PA66, PA12, PP, PC, PBT, ABS, TPU, PSU, POM, PC+ABS, and others, are produced by us.We can also alter it.
Our company is eager to work truly with businesses around the world to reach a win-win situation.
We have a factory in No.27, Hongxi road, Xiamen, Fujian, China of 5000 m2, with 7 production lines and the annual output is 35000 tons, worked for 18 hours per day in order to meet the requirement of the clients. We have quality control personnel staying on the production line to check. All products must be inspected before delivery. We conduct online checks and final checks.
In addition to the standard 25KG package, we also provide other size of packaging, 800-1250kg, if you need other needs, we can accept customized.
Delivery:
| By Express |
1kg-50kg |
| By Air |
50kg-500kg |
| By Sea |
500kg or more |
Exhibitions and customers show
After 14 years of foreign trade work, we have accumulated customers from many countries and regions, such as Europe, South America, the Middle East, Southeast Asia, etc. They are engaged in household appliances, automobiles, industrial, and other industries.
Q1.Are you manufacturer or trade company?
A.We are manufacturer and there are 3 family factories in Xiamen, Tianjin and Suzhou province
Q3.Is the sample available?
Yes, samples are available for you to check the quality with any quantity.
Q4.Is there the products tested before shipping?
Yes, of course. All of our products all will has been 100%QC before shipping. We test every batch every day.
Q5.How your quality guarantee?
We have 100% quality guarantee to customers. We will be responsible for any quality problem.
Q6.Can we visit your factory before place the order?
Yes,Very welcome that must be nice to set up good relationship for business.
If you need more information, please do not hesitate to contact me.
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