Process for the preparation of a black surface-treated steel she

Details Process for the preparation of a black surface-treated steel she Process for the preparation of a black surface-treated steel she

1989-01-24

1990-11-06

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

204 387, 204 561, C25D 706

Patent

active

049683918

ABSTRACT:
Disclosed are a black surface-treated steel sheet, which comprises a steel sheet or plated steel sheet and a electrodeposited composite plating coating formed in a deposition amount of 0.1 to 5 g/m.sup.2 on the surface of the steel sheet or plated steel sheet, the plating coating containing metalic Zinc or Zn-Ni alloy and oxides or hydrous oxides and sulfur compound, and a process for the preparation of a black surface-treated steel sheet, which comprises carrying out the electrolysis in an acidic aqueous solution containing Zn.sup.2+ and, as the main components, at least one member selected from the group consisting of Fe.sup.2+, Co.sup.2+ and Ni.sup.2+, an oxidative ion, and a thio compound, by electrolysis a steel sheet or plated steel sheet as the cathode, and water-washing and drying the treated steel sheet.

REFERENCES:
patent: 4707415 (1987-11-01), Ikeda et al.
F. Barth et al. Interfinish '84 85-93, 1984.

Affiliated with

Also associated with

Rating

Process for the preparation of a black surface-treated steel she does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of a black surface-treated steel she, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of a black surface-treated steel she will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1305352