数值模拟方法在橡胶注射成型中的应用研究

Numerical Simulation Study on Injection Molding of Rubber

应用数值模拟方法对橡胶注射成型过程进行研究,分析不同熔体温度和模具温度下橡胶的流动前沿温度、充填结束时的体积硫化率、硫化成型阶段的体积硫化率及硫化的均匀程度等,确定最佳工艺参数,从而在确保顺利充模、熔料汇合处无熔接痕、硫化程度和温度均匀分布及无残余应力等的前提下,缩短硫化时间,提高生产效率。

The rubber injection molding process was studied through numerical simulation method.Under different melt temperature and mold temperature,the flow front temperature,volume curing rates at the end of filling and during curing process,and vulcanization evenness were analyzed to determine the optimal process parameters.As a result,the mold filling process was smooth,there was no weld line in the material flow front,the curing degree and temperature field were uniformly distributed,and there was no residual stress in the molded article.Moreover,the curing time was shortened and production efficiency was improved.