模具及浇口设计
常见模具温度为80-100℃,加玻纤为100-130℃,小型制品可用针形浇口,浇口深度应有厚部位的70%,其它浇口有环形及长方形。浇口越大越好,以减低塑料被过度剪切而造成缺陷。排气孔的深度应小于0.03-0.06mm,流道尽量短而圆,脱模斜度一般为30′-1左右。
塑料的处理
PC塑胶原料的吸水率较大,加工**定要预热干燥,纯PC干燥120℃,改性PC一般用110℃温度干燥4小时以上。干燥时间不能**过10小时。一般可用对空挤出法判断干燥是否足够。再生料的使用比例可达20%。在某些情况下,可的使用再生料,实际份量要视制品的品质要求而定。再生料不能同时混合不同的色母粒,否则会严重损坏成品的性质。
背压
10bar左右的背压,在没有气纹和混况下可适当降低。
滞留时间
在高温下停留时间过长,物料会降质,放也CO2,变成。勿用LDPE、POM、ABS或PA清理机筒。应用PS清理。
PC型号
Makrolon 1092 PC Bayer MaterialScience LLC
Makrolon 1095 PC Bayer MaterialScience AG
Makrolon 1143 PC Bayer MaterialScience AG
Makrolon 1239 PC Bayer MaterialScience AG
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Makrolon 1954 PC Bayer MaterialScience AG
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Makrolon 2505 PC Bayer MaterialScience LLC
Makrolon 2558 PC Bayer MaterialScience AG
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Makrolon 2607 PC Bayer MaterialScience AG
Makrolon 2608 PC Bayer MaterialScience LLC
Makrolon 2647 PC Bayer MaterialScience LLC
Makrolon 2656 PC Bayer MaterialScience AG
Makrolon 2658 PC Bayer MaterialScience AG
Makrolon 2665 PC Bayer MaterialScience AG
Makrolon 2667 PC Bayer MaterialScience AG
Makrolon 2805 PC Bayer MaterialScience AG
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Makrolon 3103 PC Bayer MaterialScience AG
Makrolon 3103 MAS157 PC Bayer MaterialScience AG
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Makrolon 3205 PC Bayer MaterialScience LLC
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Makrolon 6165X PC Bayer MaterialScience AG
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Makrolon 6355 PC Bayer MaterialScience LLC
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Makrolon 6455 PC Bayer MaterialScience LLC
Makrolon 6457 PC Bayer MaterialScience LLC
Makrolon 6465 PC Bayer MaterialScience AG
Makrolon 6485 PC Bayer MaterialScience AG
Makrolon 6487 PC Bayer MaterialScience AG
Makrolon 6555 PC Bayer MaterialScience AG
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Makrolon 8315 PC Bayer MaterialScience LLC
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Makrolon 8345 PC Bayer MaterialScience AG
Makrolon 9125 PC Bayer MaterialScience AG
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Makrolon AG2677 PC Bayer MaterialScience AG
Makrolon AL2247 PC Bayer MaterialScience LLC
Makrolon AL2443 PC Bayer MaterialScience LLC
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