塑料制品翘曲变形的解决方案及应用

主要研究汽车外饰塑料制品在注塑过程中由材料收缩不均引起的翘曲变形问题,通过对典型案例的分析,尝试利用成型件工装整形、加工中的挂具整形及Moldflow预变形技术来分析解决,重点介绍了预变形技术,通过模流与实际的对比,预测其变形趋势,最终得到明显改良的变形效果。这对于提高制品质量具有重要的指导意义。

Solution and Application for the Deform of Plastic Product

The automotive exterior plastic product deform issue which caused by the unbalanced material shrinkage during injecting was focused on. Several typical cases such as tooling reforming, chrome fixture and predeformation were used to solve the issue, The predeforma- tion was emphasized. Through comparing the moldflow with actual deflection, the deform trend was forecasted. Finally, the obvious improved part was produced. It is significant to improve the quality of the product.