Method and apparatus for producing one-side electroplated steel strip with enhanced phosphatability
US4808278A · kind A · utility
2Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1988 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Jan 15, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D7/0614
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Producing one-side zinc electroplated strip having enhanced phosphating characteristics. Prior to electroplating, the non-electroplated side of the steel strip is cathodically pickled. Cathodic pickling minimizes staining and etching to the non-electroplated strip surface by the zinc electrolyte during electroplating of the opposite strip surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.