介绍了薄膜前处理工艺在应用调试阶段产生的电泳后外观问题,从车身板材打磨方式优化、硅烷预处理优化以及电泳槽液优化等方面进行充分试验,深入分析和验证了该问题的成因,并从硅烷预处理工艺的日常维护、参数优化及电泳参数优化等方面提出解决方案。

In this paper,appearance issue after E-coating in the commissioning of thin-film pretreatment process was focused,The optimization of the body plate grinding method,the optimization of silane pretreatment and the optimization of electrophoresis tank fluid were fully tested.The causes of the problem are analyzed and verified in depth.Solutions are put forward from the aspects of silane pretreatment process daily mainte nance,parameter optimization and electrophoresis parameter optimization.