基于Moldflow软件的双色塑料零件印痕研究

Study on the Mark of Bi-color Plastic Part Based on Moldflow

塑料零件成型后,内部仍然存在一定的应力,当此应力作用于外观面上便形成印痕,印痕的存在会影响到制品外观的品质。以汽车开关按钮为研究对象,通过建立简单试验模型,采用Moldflow中的“填充+保压+重叠注塑充填+重叠注塑保压+翘曲”分析序列,分析其根本原因,通过对零件结构进行优化,能有效改善印痕问题,满足零件的使用要求。

After plastic parts are molded,there is still stress in the interior.When the stress is applied to the appearance of part surface,the mark is formed.The existence of mark will affect the appearance quality of the products.Taking automobile switch button as the research object,a simple test model was established,and the analysis sequence of"filling+packing+overmolding flling+overmoding packing+warping"in Moldflow was adopted to analyze the root cause.By optimizing the structure of the parts,the mark was effectively improved and the requirements of parts were met.