汽车玻璃塑料包边成型的溢边影响因素研究  

Research on the Generation Factors of Oversprayed Flange in Injection Molding of Vehicle Glass with Embedded Glass

作　　者：王乾廷[1] 刘琼[1] 刘贤平[1,2] 陈文哲[1] 

机构地区：[1]福建工程学院 [2]福耀玻璃工业集团股份有限公司

出　　处：《汽车技术》2012年第10期57-61,共5页Automobile Technology

基　　金：福建省教育厅资助省属高校科研专项项目(JK2010038);福建省教育厅科技计划项目(JA11189);福建省企业技术创新专项资金项目(2011-702-04)

摘　　要：针对汽车塑料包边玻璃在注塑中易产生溢边缺陷的问题,定量研究了溢边产生的原因和控制方法。以塑料溢边简化模型为基础,建立了溢边长度与塑料材质和工艺参数之间的定量关系;以试验模型为对象,在不同成型参数下分别进行注塑试验,测定了不同工况下产生溢边的气孔处压力和温度分布以及溢边的几何尺寸;分析了成型参数和气孔参数与溢边形成之间的函数关系。结果表明,溢边长度与气孔间隙平方成正比,而温度和压力等参数的影响较小。Vehicle glass with embedded glass is produced by injection molding around the glass boundary,which is composed of the glass and plastics.Aiming at the defect of oversprayed flange in the processing,quantitative research has been carried out on the reasons and controlling methods of the existence of such defect.Based on the simplified model of the oversprayed flange,the quantificational relation between the length of the flange and the material properties and the processing parameters is set up.According to the experimental model,the injection molding experiments are performed with different processing parameters,in which the pressure,temperature distribution near the gas vent are obtained under different conditions and the flange sizes are also measured.The functional relation between the parameters of processing and venting sizes and the flange is analyzed.The results show that the length of the flange is proportional to the square of the gas vent clearance and the influence of temperature and pressure on the flange is relatively little.

关 键 词：汽车玻璃 包边注塑 溢边缺陷 气孔尺寸 

分 类 号：TQ324.9[化学工程—合成树脂塑料工业]