怎样判断彩涂板涂层前表面处理缺陷的成因

当表面化学涂层出现缺陷问题时，首先要区分是脱脂段问题还是化成段的问题，这一点对于判断缺陷的产生原因-重要。
　　其判断方法可采取涂层前化学液不变，而将脱脂段的操作工艺或溶液参数作修改，如果效果不明显就反过来先将化成段的操作工艺或化学液作适当修改，这样就容易辨别问题的所在，弄清产生缺陷的工序和大致范围。如果证明缺陷出现在脱脂段或化成段，那么就设法改正产生缺陷的工序。
when there are defects in surface chemical coatings, it is very important to distinguish the degreasing stage from the segmenting stage, which is very important for judging the causes of defects.
it can be judged by changing the operation process/solution parameters of the degreasing section without changing the chemical solution before coating. if the effect is not obvious, the operation process/chemical solution of the degreasing section should be modified appropriately, so that it is easy to identify the problem&find out the process&scope of the defect. if it is proved that the defect occurs in the degreasing section/in the section, then try to correct the process of producing the defect.
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