Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1989-05-11
1991-04-30
Dean, R.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428626, 428632, 428659, 428687, 4284721, 4284723, B32B 1504
Patent
active
050117440
ABSTRACT:
A colored zinc composite-plated steel sheet which comprises a steel sheet or a plated steel sheet, a colored composite-plating film comprising zinc and an oxide of a coloring metal such as nickel, cobalt, iron, chromium, tin or copper and provided on the steel sheet at a coverage of 0.1-5 g/m.sup.2 and a transparent guard coat of 3 .mu.m or less thick provided on the film is obtained by carrying out electrolysis in an acidic aqueous solution containing zinc ion, a coloring metal ion and nitrate ion, nitrite ion, perchlorate ion, chlorate ion, condensed phosphate ion and having a pH of 1-4 using the steel sheet or plated steel sheet as a cathode at a current density of 5-100 A/dm.sup.2 and a current quantity of 20-200 coulomb/dm.sup.2.
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Jitsumu Hyomen Gijutsu, vol. 35, No. 10, 1985, pp. 541-542.
Murata Toshimichi
Saito Katushi
Shimazu Takashi
Shindou Yoshio
Yamazaki Fumio
Dean R.
Wyszomierski George
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