采用模腔压力曲线的注塑成型实验

摘要

通过模腔压力传感器测量模腔压力，研究模具不同部位的模腔压力曲线，测量注塑过程中的模腔压力和塑料制品残余应力，研究模腔压力曲线与塑料制品残余应力的关系。在此基础上，探讨注射压力和保压压力对模腔压力曲线形状的影响规律。实验结果表明：模腔压力曲线和塑料制品残余应力、注塑工艺参数有很大的关系。%Cavity pressure was measured by cavity pressure sensor to study cavity pressure in different position of injec-tion mold.Cavity pressure and plastic part residual stress during the molding process were measured to study the relation-ship between them.On the basis,the effects of injection pressure and packing pressure on cavity pressure curve configu-ration were discussed.The experiment result shows that cavity pressure has a close connection with plastic part residual stress and injection parameters.