塑料检查井注塑模具型腔结构分析及优化

通过建立塑料检查井模具型腔刚强度有限元分析模型,采用正交试验设计方法研究了模具底部壁厚、周围壁厚及注射压力等参数对模具型腔刚强度的影响规律。结果表明:各参数对模具型腔应力、应变的影响程度均为:周围壁厚底部壁厚注射压力;模具型腔结构设计的最优参数组合为:底部壁厚20 mm、注射压力60 MPa、周围壁厚80 mm或100 mm。可为检查井注塑模具型腔结构设计提供参考。

The Analysis and Optimization of Injection Mould Cavity Structure for Plastic Check Well

The finite element analysis model is established for rigidity and intensity of the plastic check well cavity mould,and the orthogonal test method is used to study the effect of thickness for the bottom of the mould,thickness for the mould around and injection pressure on the rigidity and intensity of cavity mould. The results show that the influence on each of the parameters on the stress and strain are:thickness for the mould around is bigger than thickness for the bottom of the mould and bigger than injection pressure. Furthermore,the optimal parameters combination which thickness for the bottom of the mould is 20 mm,injection pressure is 60 MPa,thickness for the mould around is 80 mm or 100 mm are got. It provided reference for the research of plastic check wells inspection mould cavity structure.