基于正交试验的注塑成型质量多目标影响因素研究  

Research on Multi-Objective Influencing Factors of Injection Molding Quality Based on Orthogonal Experiment

作　　者：覃清仪 范希营 曹艳丽 陈星翔 李英杰 李璐璐 QIN Qing-yi;FAN Xi-ying;CAO Yan-li;CHEN Xing-xiang;LI Ying-jie;LI Lu-lu(College of Mechanical and Electrical Engineering,Jiangsu Normal University,Xuzhou 221116,China;CNPC Engineering Technology R&D Co.,Ltd.,Beijing 102206,China)

机构地区：[1]江苏师范大学机电工程学院,江苏徐州221116 [2]中国石油集团工程技术研究院有限公司,北京102206

出　　处：《塑料科技》2020年第10期17-20,共4页Plastics Science and Technology

基　　金：国家自然科学基金项目(51475220);徐州市科技计划资助项目(KC18239);江苏省大学生创新创业训练计划(201910320045Z);国家级大学生创新创业训练计划(201910320011)。

摘　　要：显示器盖板属于薄壁注塑件,在生产中容易出现翘曲、体积收缩等缺陷。针对此问题,研究注塑工艺参数对其质量的影响。基于Pro/E软件建立显示器盖板的三维模型,并将其导入Moldflow软件进行注塑成型仿真。采用正交试验的方法研究了不同的熔体温度、模具温度、保压压力、保压时间和冷却时间等条件下产生的翘曲、体积收缩。通过极差分析确定显示器盖板的最佳工艺参数组合;通过方差分析确定各个因素对翘曲、体积收缩的影响程度。对最佳工艺参数组合进行实际生产验证,有效降低了塑件的翘曲、体积收缩率,提高了制品成型质量,为同类问题提供了参考方向。The display cover belongs to thin-wall plastic parts,which causes warpage,volume shrinkage and other defects during production.Aiming at this problem,the influence of injection molding parameters on its quality was studied.The 3D model of display cover based on Pro/E software was established.And it was imported into Moldflow software for simulating the injection process.The orthogonal design method was used to study the warpage and volume shrinkage under different conditions of melt temperature,mold temperature,holding pressure,holding time and cooling time.The optimum process parameter combination of display cover was determined by range analysis.The effects of various factors on warpage and volume shrinkage were determined by variance analysis.The optimum process parameter combination was verified in actual production,which effectively reducing the warpage and volume shrinkage of plastic parts,improving the molding quality of products,and providing a reference direction for similar problems.

关 键 词：薄壁塑件 模流分析 正交试验 参数组合 极差分析 方差分析 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]