溢流法水辅助共注塑填充过程中注水压力的影响  

Analysis on the Influence of Water Injection Pressure in Water-assisted Injection Molding Filling Process

作　　者：章凯[1] 柳和生[1,2] 匡唐清[3] 余忠[1] 李厅[1] 黄益宾[1] 上官元硕 

机构地区：[1]上饶师范学院,江西省塑料制备成型重点实验室,江西上饶334001 [2]东华理工大学机电工程学院,江西南昌330013 [3]华东交通大学机电工程学院,江西南昌330013

出　　处：《塑料》2016年第6期96-99,共4页Plastics

基　　金：国家自然科学基金(51163011);江西省教育厅科技项目(GJJ13705);校设课题(201404)

摘　　要：采用互不相溶黏弹多相流求解器对溢流法水辅助共注塑填充过程进行模拟。针对注水压力这一重要工艺条件,系统的数值分析后发现,注水压力越大,皮层和内层熔体的残余厚度减小且中空率增大,同时基于熔体本身所固有的黏弹特性对结论进行了解释。最后进行了溢流法水辅助共注塑的实验,结论与数值模拟所得结论保持一致。A new solver which could deal with the muhiphase flow of immiscible and viscoelastic was buih. The solver couht simulate the filling process of overflow water-assisted co-injection （ O-WACIM ）. For the water injection pressure, an important prncess conditions, the systematic numerical analysis was carried out. The results showed the residual wall thickness of the skin melt and inner melt decreased when the water injection pressure was increased, while the hollow ratio increased. Meanwhile, the paper explained the conclusions based on the intrinsically viscoelastic character. Finally, the experiments of O-WACIM were carried out and the conclusion of numerical simulation was verified.

关 键 词：溢流法 水辅助共注塑 黏弹模型 注水压力 中空率 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]