Korea Engineering POM is a linear polymer with no side chains, high density, and high crystallinity. According to the chemical structure in the molecular chain, it can be divided into two types: homopolyformaldehyde and acetal copolymer.
Korea Engineering POM is a linear polymer with no side chains, high density, and high crystallinity. According to the chemical structure in the molecular chain, it can be divided into two types: homopolyformaldehyde and acetal copolymer. The important difference between the two is that the homopolyformaldehyde has high density, crystallinity and melting point, but the thermal stability is poor, the processing temperature range is narrow (about 10 ° C), the acid-base stability is slightly lower, and the copolymerized formaldehyde density, crystallinity, The melting point and strength are low, but the thermal stability is good, it is not easy to decompose, the processing temperature range is wide (about 50 ° C), and the acid-base stability is good. It is an engineering plastic with excellent comprehensive performance. Has good physical, mechanical and chemical properties, especially with excellent friction resistance. Commonly known as Saigang or Steel, it is the third largest general plastic. Suitable for making wear-resistant parts, transmission parts, and parts such as chemicals and instruments.
Korean engineering POM features
(1) Korean engineering POM can be used without drying, preferably preheating (about 80 °C) during processing, which is good for product dimensional stability.
(2) The processing temperature of Korean engineering POM is very narrow (0~215°C). When the residence time in the barrel is slightly longer or the temperature exceeds 220°C, it will decompose and produce stimulating formaldehyde gas.
(3) During the injection molding of Korean engineering POM materials, the holding pressure should be large (similar to the injection pressure) to reduce the pressure drop. The screw speed should not be too high, and the residual amount should be less;
(4) Korean engineering POM products have a large shrinkage rate and are prone to shrinkage or deformation. POM is larger than heat and has a high mold temperature (80 to 100 ° C). The product is hot when it is released from the mold, and it is necessary to prevent burns on the fingers.
(5) Korean engineering POM should be formed under the conditions of “medium pressure, medium speed, low material temperature and high mold temperatureâ€, and the mold temperature should be controlled when molding precision products.
(6) High mechanical strength and rigidity
(7) The highest fatigue strength
(8) Good environmental resistance and organic solvent resistance
(9) Strong resistance to repeated impact, good electrical properties, good recovery, good self-lubricating and wear resistance, excellent dimensional stability
Korean engineering POM can replace most non-ferrous metals, automobiles, machine tools, instrument parts, bearings, fasteners, gears, springs, pipes, conveyor belt accessories, electric water tanks, pump casings, drainers, faucets, etc.
For more information, please visit the Korea Engineering POM http://net.
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