车身磷化膜发黄、发蓝的原因探讨

Discussion on the Cause of Yellowing and Bluing of Body Phosphating Coat

磷化是汽车前处理的一个关键工序,磷化膜的质量对车身电泳漆膜的质量影响较大。根据现场积累的经验,探讨了生产中磷化膜常见的发蓝、发黄缺陷的产生原因及解决方法。

Phosphating is a key process of vehicle pre-treatment, the quality of phosphating coat has a larger effect upon the quality of body electrodeposition film. According to the site experience, the cause of common bluing and yellowing defects of the phosphating coat generated in the production and their solutions were explored.