长/短纤维增强热塑性复合材料注塑工艺模拟  

Simulation of Injection Molding Process for Long / Short Fiber Reinforced Thermoplastic Composites

作　　者：杨洁[1,2] 高梦鸾[1,2] 李志通[1,2] 尹晶晶[1,2] 姚文洪 马鸣图[4] 

机构地区：[1]长城汽车股份有限公司技术中心,河北保定071000 [2]河北省汽车工程技术研究中心,河北保定071000 [3]天水锐森特汽车部件有限公司,甘肃天水741000 [4]中国汽车工程研究院股份有限公司,重庆401122

出　　处：《塑料工业》2015年第3期81-84,89,共5页China Plastics Industry

基　　金：国汽(北京)汽车轻量化技术研究院有限公司支持(QYY-KT-2013-001)

摘　　要：采用Moldflow软件和RSC-ARD计算模型,系统地对长玻纤增强聚丙烯(PP-LGF)和短玻纤增强聚酰胺(PA-SGF)热塑性复合材料注塑成型进气歧管下片进行模拟和预测,研究这两种材料在注塑过程中的流动特性、纤维取向及翘曲变形等。研究发现,PA6-GF30与PP-LGF40填充时间相近,进气歧管浇口附近玻纤取向度低,边缘区域玻纤取向度高,且PA6-GF30整体取向程度、拉伸弹性模量均高于PP-LGF40,PA6-GF30的翘曲变形量大于PPLGF40,该研究结果为大尺寸复杂结构汽车用纤维增强热塑性复合材料零部件应用提供了基础数据。In this paper, the injection molding process of air intake manifold was systematically simulated through the moldflow software and the model of RSC-ARD, which were made respectively by long glass fiber reinforced polypropylene （PP-LGF） and short glass fiber reinforced polyamide （PA-SGF）. The fowing properties, fiber orientation and warping deformation of the two materials in the injection molding process were studied. The study showed that the filling time of PA6-GF30 and that of PP-LGFg0 were similar, and the fiber orientation degree was low near the gate of intake manifold but high at the edge area. The overall fiber orientation degree and tensile modulus of PA-GF30 was higher than that of PP-LGF40, but the warping deformation of the former was larger than that of the latter. The research results provided basic data for the application of fiber reinforced thermoplastic composites for automotive parts with large size and complex structure.

关 键 词：进气歧管 纤维增强热塑性复合材料 RSC-ARD模型 纤维取向 

分 类 号：TQ327.1[化学工程—合成树脂塑料工业]