Coated steel sheets

Details Coated steel sheets Coated steel sheets

1991-01-17

1993-02-23

Dean, R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428632, 428639, 428659, B32B 1504

Patent

active

051889056

ABSTRACT:
Disclosed are electro-plated steel sheets having a primer coating composed of 5 to 30% by weight of Cr, 0.005 to 5% by weight of cation polymer, with the balance being Zn, with or without a further Zn or Zn-alloy coating formed on the primer coating. The primer coating may contain fine particles of oxides and/or iron-group metals, and may further be applied with a chromate film and/or an organic coating. Also disclosed is the process for producing an electro-plated steel sheet having excellent corrosion resistance and surface brightness, comprising performing electro-plating in an acidic Zn plating bath containing Cr ions and cation polymer, with the ratio of Cr.sup.6+ ions/Cr.sup.3+ ions being not more than 0.1.

REFERENCES:
patent: 3985584 (1976-10-01), Chan et al.
patent: 4561952 (1985-12-01), Mels et al.
patent: 4707415 (1987-11-01), Ikeda et al.
patent: 4756975 (1988-07-01), Fujii et al.

Affiliated with

Also associated with

Rating

Coated steel sheets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coated steel sheets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coated steel sheets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2203698