共注塑中最小壳层预填充量预测方程的建立  

Creation of the formula for forecasting min pre-filled polymer volume fraction in the sequential co-injection

作　　者：王涛[1] 傅建[1] 周盛[1] 彭必友[1] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039

出　　处：《橡塑技术与装备》2008年第6期1-4,共4页China Rubber/Plastics Technology and Equipment

摘　　要：顺序共注射模塑中的芯层熔体前沿冲破是造成共注制品报废的重要原因之一,合理控制壳层预填充量可预防此现象发生。从运动学角度探讨芯层熔体冲破的影响因素,建立预测最小壳层预填充量的方程,并在Moldflow平台上进行验证。The core-melt breakthrough is one of the most important reasons that a waster is produced in the sequential co-injection molding, which could be prevented by controlling properly pre-iilled polymer volume fraction. Through the view of kinematics, discussed the reasons that affect the core-melt breakthrough, and created a mathematic formula for forecasting min pre-filled polymer volume fraction. Then validated above conclusion by the Moldflow software.

关 键 词：顺序共注成型 壳层预填充量 芯层熔体前沿冲破 数值模拟 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]