热塑性塑料的注射工艺参数_图文

1、热塑性塑料的注射工艺参数塑料名称工艺参数LDPEHDPEPP玻璃纤维增强PPSPVCRPVCGP-PSHIPSABSPA100加工特点加工性能好，用柱塞式或螺杆式注射机均可 加工性能好，用柱塞式或螺杆式注射机均可加工性能好，用柱塞式或螺杆式注射机均可对设备磨损大加工性能较好，分解物对设备有腐蚀，多用螺杆式注射机熔体粘度大，易分解变色用螺杆式注射机，温度应严格控制加工性能好，用柱塞式或螺杆式注射机均可熔体粘度大，易分解加工性能好，用柱塞式或螺杆式注射机均可，热稳定性不太好熔体粘度低，应采用闭式喷嘴注射机螺杆头带止逆环干燥条件温度(/6070/708090100(真空时间(h/24/4868温度机

2、筒后140160140160160180160180140150160170140180140160150170190210中160170180190180200210220150170165180180190170190165180200220前170200190220200230210220170175170190190200170190180200210230喷 嘴170180170190180190180190160170170180180190160170170180200210模 具/3060206070904060/4060205040702080注射压力(MPa50100701

3、00701009013050808013030120601008010080100成型周期注射时间间注射保压156015602060609053015601545154020902090高压03050325/0503030505冷却时间15601550209015405151560156015402012020120螺杆转速（r/min）<803060<803060164828<703060<702845热处理温度/70水或空气2490(油、水时间h/9/24216备 注增塑剂50份无增塑剂必要时热处理必要时热处理热塑性塑料的注射工艺参数塑料名称工艺参数PA6玻璃纤维增

4、强PA66PMMAPCPe/PE玻璃纤维增强PCPMMA/PCPOMCPPCTFE加工特点与聚酰胺类加工特点基本相似设备易磨损熔体粘度大，用螺杆式注射机熔体粘度大,玻璃化温度高流道短粗,工艺严格,多用螺杆式成型性良好熔体粘度大,设备易磨损熔体粘度大,加工性能良好应严格控制温度,防止分解对模具有腐蚀性,模具型腔应镀铬加工性能良好易分解,对模具有腐蚀性干燥条件温度(/851008090110120120120/90100/时间(h/82428>245858/46/温度机筒后200210230240160180220240230240260280210230160170180190200210

5、中230240270280230280240260270310240260170180195210285290前230240250260210240240285230250260290230250180190210260275280喷 嘴200210250260180200240250220230240260220240170180190200265270模 具60100110120408070120801009011060807012080100110130注射压力(MPa80100801308013070150801206014080130801308014080130成型周期注射时间间注

6、射保压1550206020602090208040502040209015602060高压04250505052505050503冷却时间2040206020902090206020502040206020602060螺杆转速（r/min）205030/28432040203020302843284330热处理温度/100120油水/120125/140150/时间h/0.51/14/14/备 注热塑性塑料的注射工艺参数塑料名称工艺参数FEPCACAPCABPPO改性PPOPASPBTP纤维增强PBTBPETP加工特点成型困难,操作室应通风熔体粘度大，用柱塞式注射机同CA同CA熔体粘度大，易分

7、解,成型难比PPO好干燥条件温度(1201307080/120120/120130105110135140时间(h6824/2424/35>812温度机筒后165190150170150170150170230240230240320370160180210230240260中270290/260290240270345385230240230240260280前310330180200170200180210260280230250385420220230250260260270喷 嘴300310150180150170160180250280220240330410210220210

8、230250260模 具11013040704070407011015060100230310308030120100140注射压力(MPa801306013080130801201001407010010020050606010080120成型周期注射时间间注射保压2060405040504050507040605070156010402050高压030505050505050501005冷却时间2060154015401540206020501540153020602030螺杆转速（r/min）29/2030205020302030292040热处理温度/170175时间h/23备 注热塑

9、性塑料的注射工艺参数塑料名称工艺参数PSU改性PSU玻璃纤维增强PSUPPS玻璃纤维增强PPSPESPITPX氯化聚醚加工特点粘度大,成型难熔点高,粘度大熔融温度范围小,注意温度调节收缩小,内应力较小,成型模温对产品影响较明显干燥条件温度(110120/130140/80120时间(h58/1216/12温度机筒后250270260270290300260280250270240260240270230250180190中280300280300310330300310280290260290260290250270180200前310330260280300320320340310330295310280315290310180200喷 嘴190210250270290300280300280290280290290300280290170180模 具13015080100130150120150120150120140130150608080100注射压力(MPa80200100140100140801309012090120802008013080110成型周期注射时间间注射保压30904060405040501540154030