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POM features, excellent poor and application areas
POM, 英文名polyoxymethylene, in poly raw materials, also poly oxidation 次甲基 raw materials. separation structure and crystallization property make its material mechanical properties separation excellent, has metal plastics 之称.
POM property can
（1）POM is crystallization type plastics, density is 1.42g/cm3, it property very good, 俗称“赛钢”.
（2） it tool has resistant fatigue, resistant creep, wear resistant, heat resistant, resistant impact and other excellent property can, friction coefficient small, lubricated property good.
（3）POM不 easy wet, water absorption is 0.22～0.25%, in wet ring in dimensional stability good, its shrinkage rate is 2.1%(relatively large), injection molding dimensions relatively difficult control, heat deflection temperature (HDT) is 172℃, polyoxymethylene (POM) has POM homopolymer types, property can different (POM homopolymer resistant temperature property good 一点).
below/following is USA Ticona company POM main/primary grade property can and application.
