To provide a method for producing a zinc based composite electroplated steel sheet which has excellent corrosion resistance and appearance uniformity even in the case the coating weight of a plated layer is reduced.
Regarding the method for producing a zinc based composite electroplated steel sheet in which a steel sheet stock is used as a cathode and electrolyzed in a zinc-containing plating bath to form a zinc based composite electroplated steel layer on the surface of the steel sheet stock, the plating bath includes: Zn ions of ≥0.2 mol/L; at least one of metal ion selected from Al, Sc, Y, La, Ce, Nd, Zr and V; and nitrate ions of 0.0005 to 0.1 mol/L, and the relative flow velocity of the plating liquid in the plating bath to the steel sheet stock is ≥0.6 m/s.
TAKASHIMA KATSUTOSHI
| JPH08170195A | 1996-07-02 | |||
| JPH08170196A | 1996-07-02 | |||
| JPH04110487A | 1992-04-10 | |||
| JPH01272796A | 1989-10-31 | |||
| JPS64298A | 1989-01-05 | |||
| JPS63243299A | 1988-10-11 | |||
| JP2006265578A | 2006-10-05 |
Kiyoshi Kuruma
Takanashi Reiko
Yuta Terashima