| 摘要 |
<p>The invention provides a coating method for metal plates, which comprises applying an organic coating composition on a metal plate without being surface treated or after surface preparation or chromate treatment in a dry film thickness of from 0.5 to 20 mu , drying it, subjecting to forming processing, and then undergoing electrodeposition coating. Preferably the coating composition contains from 5 to 70% by weight molybdenum disulphide and optionally also electroconductive fine particles. According to the coating method of an organic coating composition of the present invention, it becomes possible to use a cold rolled bright sheet steel which has been considered to be of problem in terms of the formability. Furthermore, since the coating method of the present invention enables to undergo electrodeposition on the cold rolled bright sheet steel, a coating film with high image clearness can be obtained. Therefore, the coating method of the present invention is suitable as a coating method of sheet steels for automobiles.</p> |
