注塑保压曲线的优化设计与分析  

Optimal Design and Analysis of Pressure Holding Curve During Injection Molding Process

作　　者：万彬[1] 范希营[1] 郭永环[1] 单以波 

机构地区：[1]江苏师范大学机电工程学院,江苏徐州221116

出　　处：《中国塑料》2017年第5期71-77,共7页China Plastics

基　　金：江苏省产学研前瞻性联合研究项目(BY2016028-02);徐州市科技计划资助项目(KC16SG277);国家级高等学校大学生创新创业训练计划项目(201610320075)

摘　　要：针对空调温控器下壳体这类注塑模具在注射成型时产生的过大变形缺陷,采用多因素田口试验法,再运用Moldflow软件对温控器下壳体进行分析、模拟,并观察可能发生的缺陷,进行优化设计。结果表明,最佳工艺参数组合模具温度为60℃、熔体温度为230℃、保压压力为60 MPa、保压时间为20s;且在最佳工艺参数下塑件的最大翘曲变形量得到显著改善,翘曲变形量减少了0.036mm。To resolve the problem of excessive deformation generating in the injection-molded lower casing of temperature controller of an air conditioner,the lower casing was analyzed by a multiresponse Taguchi method and then simulated by a Moldflow software.The results indicated that the optimum combination of processing parameters included a mold temperature of 60 ℃C,a melt temperature of 230 ℃C,a packing pressure of 60 MPa and a holding time of 20 s.The maximum warping deformation was significantly suppressed to decrease by 0.036 mm when the lower casing was injection molded with these optimum process parameters.

关 键 词：注塑模具 工艺参数 翘曲变形 田口试验 极差分析法 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]