基于Moldflow和正交试验法的注塑成型收缩率预测  

Prediction Analysis of Injection Molding Shrinkage Based on Moldflow Software and Orthogonal Experiment Method

作　　者：詹春毅[1] 冯胜山[1] 

机构地区：[1]广东省科技干部学院机械与电子工程学院,广东珠海519090

出　　处：《轻工机械》2015年第3期10-13,共4页Light Industry Machinery

基　　金：广东省自然科学基金资助项目(S2013010012025);广东科学技术职业学院校级科研项目(XJMS201301)

摘　　要：为了解决实际生产中注塑制品收缩性能难以控制的问题,采用正交试验方法,利用注塑成型模拟软件Moldflow进行有限元数值模拟,得到不同工艺条件组合下的POM(聚甲醛)矩形长条试样成型收缩率的数值,以及模具温度、熔体温度、注塑速率、保压时间、保压压力和冷却时间6个工艺参数对制品成型收缩率的影响及趋势。研究结果表明:保压时间、熔体温度和模具温度是影响注塑制品成型收缩率较大的3个因素,对控制制品的收缩最为有效。In order to control the shrinkage of injection molding products in actual production,adopted the orthogonal experimental design method,took advantage of injection molding software Moldflow for finite element numerical simulation,obtained POM（ Polyoxyme-Thylene） rectangular strip sample molding shrinkage value under the combination of different process. Mold temperature,melt temperature,injection rate,packing time,packing pressure and cooling time were presented to predict the shrinkage rate of the plastic part. The results shows that packing time,melt temperature and mold temperature are the three largest influence factors on shrinkage rate. The three factors can control the shrinkage of injection molding products most effectively.

关 键 词：注塑成型 收缩率 正交试验 MOLDFLOW软件 有限元 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]