CPC C25D 9/10 (2013.01) [B32B 9/00 (2013.01); B32B 15/04 (2013.01); B32B 15/18 (2013.01); C23C 28/00 (2013.01); C23C 28/322 (2013.01); C23C 28/34 (2013.01); C23C 28/345 (2013.01); C25D 5/10 (2013.01); C25D 5/12 (2013.01); C25D 5/48 (2013.01); C25D 7/0614 (2013.01); C25D 9/06 (2013.01); C25D 11/36 (2013.01); B32B 9/041 (2013.01)] | 4 Claims |
1. A method for producing a surface-treated steel sheet comprising:
forming a phosphate compound layer on a tin-plated steel sheet by means of an anode electrolytic treatment, wherein the tin-plated steel sheet is obtained by tin-plating a steel sheet; and
forming an aluminum-oxygen compound layer on the phosphate compound layer by means of an electrolytic treatment using an electrolytic treatment liquid containing aluminum.
|