Method for the electrodeposition of an iron-zinc alloy coating and bath therefor
US4540472A · kind A · utility
31Cited by
3References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 3, 1984 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Dec 3, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/565
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In the electrodeposition of iron-zinc alloy coatings, a lustrous, adherent iron-zinc coating containing 10-20% iron is achieved over a current density range of 400-1600 amps/ft.sup.2 and line speeds of 100-500 ft/min. by employing an electrolyte maintained at a temperature of 130.degree. to 160.degree. F. which contains FeCl.sub.2, ZnCl.sub.2, KCl, K.sub.2 SO.sub.4, a chelating agent such as citric acid, and a minor amount of an adduct composed primarily of polyalkylene glycols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.