为了提高涂装车身品质,提升面漆一次交检合格率,给出了涂装缩孔的定义和在涂装过程中可能会影响缩孔的因素与如何进行管控;采用理论分析和试验研究相结合的方法,分析了前处理电泳、涂胶、打磨、中面涂、烘干和强冷各个工序以及现场工作环境与缩孔的关联,给出了涉及缩孔潜在因素的过程控制。结果表明:缩孔的形成与多种因素有关,现场作业环境的洁净程度、员工操作、高洁净区域的保洁与保养、原材料的入厂管控对面漆缩孔贡献较大。

For improving the coating body quality and the qualified rate of one painting inspection,the definition of shrinkage cavity and the factors that may affect the shrinkage cavity during the coating process and how to control it were introduced.With the help of theoretical analysis and experimental research,the process of pretreatment electrophoresis,gluing,grinding,mid-surface coating,drying and forced cooling and the relations among the on-site working environment and the shrinkage cavity and revealed the process control involving potential factors in shrinkage cavity were discussed.The results indicate that the formation of shrinkage cavity relates to many factors and on-site environment cleanness,staff operation,cleaning and maintenance of high clean area and the admission control of raw materials into factory make a great impact on the top coating shrinkage cavity.