PE弯头管件的挤出压缩工艺研究  

Extrusion Compression Technology of PE Elbow Pipe

作　　者：成升文[1,2] 梁业兴[1,2] 贺建平[1,2] 冯鑫江[1,2] 黄虹宾[1,2] 

机构地区：[1]深圳大学机电与控制工程学院,广东深圳518060 [2]深圳大学深圳市模具先进制造技术重点试验室,广东深圳518060

出　　处：《工程塑料应用》2012年第9期36-39,共4页Engineering Plastics Application

基　　金：国家自然科学基金项目(60978039)

摘　　要：采用挤出压缩工艺制备了聚乙烯(PE)弯头管件,对管件尺寸精度的影响因素进行了研究,着重探讨了模腔温度、压缩时间与管件尺寸精度之间的关系。结果表明,当压缩压力为25 MPa、熔体温度为220℃、定模内腔温度为60℃、压缩时间为12 min时,利用挤出压缩工艺制备的PE弯头管件尺寸精度最高,且高于优化后的注塑工艺。Polyethylene （PE） elbow pipes were prepared by extrusion compression technology and the influence factors on dimension precision of the pipes were studied. The relationships between mold cavity temperature, compress time and dimension precision of the pipes were explored emphatically. The results showed that when compress pressure was 25 MPa, the melt temperature was 220℃, mold cavity temperature was 60℃, compress time was 12 min, the dimension precision of PE elbow pipe prepared by extrusion compression technology was the highest and it was better than that of the pipe prepared by injection molding process after optimization.

关 键 词：弯头管件 聚乙烯 挤出压缩 模具 尺寸精度 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]