摘要
利用Moldflow软件对气体辅助注塑制品中玻纤的取向情况进行了模拟。分析了熔体温度、延迟时间、气体注入等因素对气体辅助注塑制品中玻纤取向的影响。结果表明:制品中心平面处玻纤沿流动方向排列规整,而靠近气道和模壁处玻纤的排列较为混乱;提高熔体温度和减少延迟时间都能起到降低玻纤取向程度的作用;气体的注入使气道与模壁之间的玻纤排列更加规整;在制品的中心平面上,玻纤排列均匀、规整,随着标准厚度值的增加,玻纤的排列情况基本相同,但排列规整程度均低于中心平面处。
The orientation of glass fiber in gas-assisted injection moulded part was simulated by Moldflow software.The effects of melt temperature,delay time,gas injection,and etc on the orientation of the glass fiber were analyzed.The results show that：the orientation of glass fiber in the mid-plane of the product is regular,the orientation of glass fiber near the gas runner and the wall of the mould is irregular;both the increase of melting temperature and the decrease of the delay time decrease the orientation of the glass fiber;the injection of gas improves the orientation of glass fiber between the gas runner and the wall of the mould;in the mid-plane of the product,the orientation of the glass fiber is regular and uniform,with the increase of standard thickness,the orientation of the glass fiber becomes irregular compared with that of mid-plane.
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出处
《塑料科技》
CAS
北大核心
2008年第9期50-54,共5页
Plastics Science and Technology
关键词
气体辅助注塑
玻纤
取向
模拟
Gas-assisted injection moulding
Glass fiber
Orientation
Simulation
