化学微发泡注塑在汽车门内饰板的应用  

Application of Chemical Foaming Injection on Door Trim Panel

作　　者：刘臻青[1] 

机构地区：[1]泛亚汽车技术中心有限公司

出　　处：《汽车工程师》2017年第4期47-50,共4页Automotive Engineer

摘　　要：为了通过汽车内饰注塑零件的轻量化以降低整车燃油消耗,该文论述了化学微发泡注塑在汽车门内饰板中的应用。通过对化学微发泡注塑工艺原理的介绍及工程力学计算公式的运用,分析出减重目标及初始注塑壁厚,并在综合考虑减重目标、泡孔状态的稳定性及零件的性能后,确定出最为合适的发泡厚度和材料的弯曲模量。在满足刚度要求的基础上达到了轻量化的目的,最终将化学微发泡注塑工艺成功地应用在某量产车型门内饰板上,实现了23%的减重效果,取得了良好的经济和社会效益,为汽车内饰注塑零件的轻量化设计提供了参考。In order to decrease the vehicle fuel consumption by light weight interior injection components development, this paper discusses the chemical foaming injection process implementation on door trim panel. It introduces the principle of engineering mechanics and chemical foaming injection to analyze the initial injection wall thickness according to mass saving target. The most appropriate thickness of foam layer and material flexural modulus is determined by comprehensive consideration of mass saving target, stable status of micro-bubbles inside of door trim main wall and door trim performance. After physical validation, chemical foaming injection was successfully implemented on the door trim of vehicle, realized 23% mass saving and achieved good economic and social benefits, which provided good reference for light weight development of interior injection components.

关 键 词：化学微发泡注塑 汽车门内饰板 聚丙烯 轻量化 弯曲模量 

分 类 号：U463.83[机械工程—车辆工程]