Aqueous zinc phosphating solution and method of rapid coating of steel for deforming
US3939014A · kind A · utility
6Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1974 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Nov 20, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/13
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In the continuous strand method of processing high carbon steel wire for subsequent cold deformation, a zinc phosphate conversion coating is rapidly formed on the steel surface to aid in the subsequent deformation by contacting the steel surface with an aqueous acidic coating solution comprising phosphate, zinc and nitrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.