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| Prevention and control measures of two times flow mark film defects in electrophoresis coating |
| 点击：7697 发布单位：www.gdhongma.cn 发布时间： 2017-06-23 |
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Prevention and control measures of two times flow mark film defects in electrophoresis coating
Electrophoresis coating is a very high quality and efficient coating method, but we often find that there are different kinds of film abnormal phenomena, such as two times flow mark is one of the common abnormalities. What is the two flow mark? Refers to the product after electrophoresis drying, in the crevice, easy to flow structure below the surface of the film produced a strip of flow like phenomenon, we call it "two flow mark". What causes it? How should we prevent it? Today, electrophoresis paint manufacturers flying paint experts, and tell you about "electrophoresis two times flow mark film defects prevention and control measures.".
Common causes
1, Xu Xu's own crevice and fluid structure.
2, the solid content of the bath liquid is too high, after washing solid parts.
3, poor washing after electrophoresis.
4, enters the drying room temperature too fast.
5, hanging dripping paint.
Prevention method
1, improve the hanging mode; in permitted circumstances, painted work holes.
2, appropriate to reduce the solid content of the tank, plus after the wash tank for water renewal.
3, strengthen the electrophoresis after washing management, such as nozzle inspection, dredge, adjust.
4, strengthen Lishui District, increase water, reduce the product into the furnace heating zone temperature early.
5, cleaning or improved hanger. |
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