注射工艺参数对PC/ABS材料制品收缩与翘曲的影响  

THE EFFECT OF INJECTION PROCESS PARAMETERS ON THE SHRINKAGE AND WARPAGE OF PC/ABS′S PART

作　　者：董斌斌[1] 申长雨[1] 刘春太[1] 

机构地区：[1]郑州大学橡塑模具国家工程研究中心,河南郑州450002

出　　处：《高分子材料科学与工程》2005年第4期232-235,239,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金项目(10372095);国家高技术研究发展计划(863)项目(2002AA336120);河南省科技攻关项目(424290020)

摘　　要：将计算机模拟注射成型过程和实验优化设计相结合,提供了一套经济有效便捷的方法对各工艺参数进行定量的统计分析。选用L27(313)正交表设计实验,通过研究注射速率来判断流动引起的收缩;计算模具温度、熔体温度、保压压力与保压时间来确定热诱导的收缩;研究浇口尺寸来判断剪切热对PC/ABS塑料制品收缩的影响程度。以洗衣机上盖为例,以Taguchi实验方法为设计准则安排CAE分析,在制品关键部位采集收缩翘曲量,通过对因素与水平进行的方差分析和直观分析,最后得出熔体温度和保压压力对PC/ABS塑料制件的收缩翘曲影响最大。The effects of various parameters were investigated by the use of the CAE program. A set of experimental tests based on design of experiments scheduling L_(27)(3^(13))were performed to determine a optimum condition for minimizing the shrinkage and the warpage of a washer cover in injection molding. The flow induced shrinkage by injection rate, calculated temperature, pressure and packing time were studied to determine thermal induced shrinkage, and investigated size of gate to judge the effect of shear on shrinkage. Finally, it shows that the melt temperature and packing pressure are considered as the strongest effect factors for shrinkage and warpage in the injection molding PC/ABS′s part.

关 键 词：工艺参数 注射成型PC/ABS制件 收缩与翘曲 方差分析 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]