化学微发泡成型外观表面技术研究  

Research on chemical microcellular foaming technology for surface appearance

作　　者：徐以国[1] 裘洲通 向良明[1] 延伟华[1] XU Yi-guo;QIU Zhou-tong;XIANG Liang-ming;YAN Wei-hua(Pan Asia Technical Automotive Center Co.,Ltd.,Shanghai 201201,China)

机构地区：[1]泛亚汽车技术中心有限公司,上海201201

出　　处：《模具工业》2021年第2期50-52,64,共4页Die & Mould Industry

摘　　要：从汽车内饰轻量化方向考虑,研究了化学微发泡技术,从成核和气泡长大阶段进行研究,通过特殊的柔性后退core-back工艺,在充模过程中控制气泡的变形和破裂以保证成型制品的表面质量,实现化学微发泡成型制品无外观缺陷、质量减轻20%以上的目的。Consider from the lightweight of automobile trim,the chemical microcellular foaming technology was studied,and the stages of nucleation of bubble and growth of bubble were researched.By adopting the special core-back process,the surface quality of part was ensured through controlling the bubble deformation and burst in the filling process.Finally,excellent quality surface products were acquired with weight reduction above 20%.

关 键 词：微发泡 柔性后退 轻量化 免喷涂 注射模 

分 类 号：TG76[金属学及工艺—刀具与模具]