灯具多色注塑透镜开裂形成机理及对策  

Crack Mechanism of Auto Lamp Bi-color Plastic Injection Outer Lens and Countermeasures

作　　者：李祥兵[1] 王坦[1] 刘永清[1] LI Xiang-bing;WANG Tan;LIU Yong-qing(Dongfeng Peugeot Citroen Automobile Corporation Technology Centre,Wuhan 430050,China)

机构地区：[1]神龙汽车有限公司技术中心,湖北武汉430050

出　　处：《汽车电器》2018年第9期80-82,共3页Auto Electric Parts

摘　　要：介绍双色注塑成型的工艺原理和特点,着重探讨在双色注塑过程中需要时刻关注断面的设计、模具本身的清洁度以及温度,以避免模具开裂问题的发生。最后对双色注塑的未来发展进行展望,指出双色注塑应与其它注塑技术结合,向多色、多材质注塑成型方向发展。The paper introduces the principle and characteristics of bi- color plastic injection of auto lamp outer lens; points out key parameters such as design of cutting section, cleanliness and temperature of mold, which are the key to avoid outer lens crack in the cause of injection; proposes trend on the development of bi-color plastic injection outer lens as multicolors and multi-materials by combining the technology of other injection technologies.

关 键 词：双色注塑 汽车灯具 开裂 模具 

分 类 号：U463.451[机械工程—车辆工程]