POM注塑工艺
干燥处理:如果材料储存在干燥环境中,通常不需要干燥处理。
熔化温度:均聚物材料为190~230℃;共聚物材料为190~210℃。
模具温度:80~105℃。为了减小成型后收缩率可选用高一些的模具温度。
注射压力:700~1200bar
注射速度:中等或偏高的注射速度。
流道和浇口:可以使用任何类型的浇口。如果使用隧道形浇口,则好使用较短的类型。对于均聚物材料建议使用热注嘴流道。对于共聚物材料既可使用内部的热流道也可使用外部热流道。
POM 聚甲醛的化学和物理特性:
POM是一种坚韧有弹性的材料,即使在低温下仍有很好的抗蠕变特性、几何稳定性和抗冲击特性。POM既有均聚物材料也有共聚物材料。均聚物材料具有很好的延展强度、抗疲劳强度,但不易于加工。共聚物材料有很好的热稳定性、化学稳定性并且易于加工。无论均聚物材料还是共聚物材料,都是结晶性材料并且不易吸收水分。POM的高结晶程度导致它有相当高的收缩率。
巴斯夫Ultraform系列POM介绍
Ultraform HUNC Q600 is a POM with high molecular weight grade for injection molding.
Ultraform HHigh-molecular-weight grade for the extrusion of small thin-walled tubes and also of panels.
Ultraform H4320 High-molecular-weight grade for the extrusion of semifinished product
Ultraform N2310 P Q600 is a general-purpose injection molding POM grade containing special lubricant.
Ultraform NUNC Q600 is a rapidly freezing general-purpose injection-molding POM grade.
Ultraform N2320C BK120 Q600 is a pigmented black, Electro Statically Dissipative (ESD) POM for injection molding applications.
Ultraform N2640Z2 UNC Q600 is an elastomer-modified injection molding POM grade with high impact strength.
Ultraform N2640Z4 UNC Q600 is a high toughness, elastomer-modified injection molding POM grade.
Ultraform N2640Z6 UNC is an elastomer-modified injection molding POM grade with excellent impact strength.
Ultraform N2200G43 Injection molding grade for parts requiring high stiffness and strength together with good mold release.
Ultraform N2200G43 Injection molding grade for parts requiring high stiffness and strength together with good mold release.
Ultraform N2310P General-purpose injection molding grade containing special lubricant.
Ultraform NRapidly solidifying standard grade for injection molding.
Ultraform N2520L This grade has reduced electrical surface resistivity.
Ultraform N2720 M210 UNC Q600 is a 10% mineral filled injection molding POM grade for low warpage parts
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