厚壁塑料平衡块成型收缩率的确定

Determination of the Mold Shrinkage of Thick-wall Plastic Parts of Balanced Block

以厚壁塑料平衡块为研究对象，采用Moldflow模流分析为手段，针对Moldflow对厚壁三维有限元网格在收缩处理上的不足，提出利用Moldflow的Flow＋Wrap模块和PRO／E相互配合；通过合理选择工艺参数、利用分析结果探讨求解收缩率的方式、方法和手段，最终获得厚壁平衡块塑件的收缩率，从而保证塑件的尺寸精度要求。

On the subject of thick-wall plastic parts of balanced block using Moldflow, a combined use of the Flow Wrap module of Moldflow and ProE was adopted, in accordance with the defects of thick-wall 3D finite element mesh in shrinkage handling. To ensure precision of size for the subject, approaches, methods and means for the determination of shrinkage were explored using analysis result acquired through appropriate material and optimal technical parameters setting.