电泳涂膜气泡缩孔原因分析及解决方案浅析

Cause analysis and solution of electrophoretic bubble shrinkage defect

阴极电泳涂装因具有高效、优质、安全环保、经济等优点,在汽车工业涂装中获得广泛运用。文章通过某条涂装生产线汽车大顶电泳漆膜产生气泡缩孔质量问题的解决,找出造成电泳漆膜气泡缩孔的主要原因是电泳过程中产生的氢气气体没有及时排出,解决措施是调整电泳槽底部循环喷嘴的方向。指出在涂装车间前处理电泳槽体设计阶段,根据不同的前处理电泳输送方式,电泳槽底部循环喷嘴方向设计的规范性,从而避免电泳漆膜气泡缩孔质量问题的出现。

Cathodic electrophoretic coating has been widely used in automotive industry because of its advantages of highefficiency,high quality,safety,environmental protection and economy.This paper solve bubble shrinkage quality problemsthrough a large top automobile coating production line mainly caused by the electrophoretic,find the electrophoreticshrinkage of the bubble is the gas generated during electrophoresis without timely discharge,solution is to adjust the tankbottom circulation nozzle direction.The electrophoresis tank design stage in the painting workshop,according to thedifferent treatment before electrophoresis transmission,standard electrophoresis tank bottom circulation nozzle designdirection,to avoid the shrinkage of bubble electrophoresis coating quality problems.