Long-term supply of POM 525GR USA DuPont Chengdu Chongqing Wenjiang Zigong wholesale

Weirun High Plastics Co., Ltd. adheres to the principle of "Everyone has the best, small profits but quick turnover", and is willing to join hands with new and old customers in the business world to create a better tomorrow. The physical properties of plastic raw materials can be provided with the goods, and plastic raw materials can be provided: R report, certification, certification, material certificate and material safety data sheet ().
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Mr. Wang
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Supply DuPont injection molding grade high viscosity from the United States
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It is a crystalline plastic with a density of ./3. It has very good rigidity and is commonly known as Saigang
It has fatigue resistance, creep resistance, wear resistance, and It has excellent properties such as heat and impact resistance, and has a small friction coefficient and good self-lubricating properties. It is not easy to absorb moisture, with a water absorption rate of . ), the size is difficult to control during injection molding, and the heat distortion temperature is ℃. There are two types of polyformaldehyde, homopolymer and copolymer, with different properties (homopolymer has better temperature resistance)
2. Process characteristics
There is no need to dry before processing. It is best to preheat (around ℃) during processing, which is good for the dimensional stability of the product
The processing temperature is very narrow (~℃), and the residence time in the barrel is slightly When the temperature exceeds ℃, it will decompose and produce irritating formaldehyde gas
When the material is injected, the holding pressure should be larger (similar to the injection pressure) to reduce the pressure drop. The screw speed cannot be too high, and the residual volume Less
The shrinkage rate of the product is large and it is easy to shrink or deform. The specific heat is large and the mold temperature is high (~℃). The product will be very hot when it is demoulded, so you need to prevent scalding your fingers
It should be used at medium pressure and Molding processing at medium speed, low material temperature, and high mold temperature. Control of mold temperature is required when molding precision products
High mechanical strength and rigidity
Highest fatigue strength
Environmental resistance Good resistance to chemical and organic solvents
Strong resistance to repeated impact, good electrical properties, good recovery, self-lubricating, good wear resistance, excellent dimensional stability
Application of 3.
Can replace most non-ferrous metals, automobiles, machine tools, instrument internal parts, bearings, fasteners, gears, springs, pipes, conveyor belt accessories, electric water cookers, pump casings, drainers, faucets, etc.