塑料注射成型保压过程数学描述  

Mathematical Modelling for the Packing Stage in Injection Molding

作　　者：申长雨[1] 翟明[1] 陈静波[1] 刘春太[1] 王利霞[1] 

机构地区：[1]郑州工业大学橡塑模具国家工程研究中心

出　　处：《中国塑料》1998年第5期92-98,共7页China Plastics

基　　金：国家自然科学基金

摘　　要：在对塑料注射成型中保压过程进行深入分析的基础上，提出了合理的假设并进行了必要的简化，利用连续介质力学的基本方程导出了可压缩、非牛顿粘性流体在模具型腔中非等温流动的控制方程，选用了恰当的材料性质模型，建立了可对保压过程进行数值模拟的数学模型。Appropriate assumptions, based on close observation on the packing stage of injection molding, are being made to afford the establishment of a mathematical model to be used as a means of control in molding operation.Following the basic equation in continuous medium mechanics,a mathematical model for the non isothermal flow of the compressible,non Newtonian viscous melt in the mold cavity has been derived With the proper choice of melt materials,the model can be used to provide numerical simulation for controlling the packing stage in injection molding

关 键 词：保压 数学描述 注塑成型 塑料 成型 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]