POM物性表：

　　POM has very low friction coefficient and good geometric stability, especially suitable for manufacturing gears and bearings. Because it also has high-temperature resistance, it is also used in pipe devices (pipe valves, pump shells) , lawn equipment. Process conditions, drying: if the material is stored in a dry environment, drying treatment is usually not required. The melting temperature is 190 ~ 230 ° C for homopolymer and 190 ~ 210 ° C for Copolymer. Die Temperature: 80 ~ 105 °C. In order to reduce the shrinkage after molding can choose a higher mold temperature. Injection pressure: 700 ~ 1200 bar injection speed: medium or high injection speed. Runner and gate: any type of gate can be used. If a tunnel gate is used, the shorter type is used. Hot nozzle runner is recommended for homopolymer materials. For copolymer materials both internal and external hot runner may be used. Chemical and physical properties of POM POM: POM is a tough and elastic material with excellent creep resistance, geometric stability and impact resistance even at low temperatures. POM has both homopolymer and copolymer materials. Homopolymer materials have good tensile strength, fatigue strength, but not easy to process. The copolymer material has good thermal stability, chemical stability and is easy to process. Both homopolymer and copolymer materials are crystalline materials and do not absorb water easily. The high degree of crystallization of POM leads to its high shrinkage, which can be as high as 2% ~% . For a variety of different reinforced materials have different shrinkage.