Method and apparatus for providing composite metallic coatings on metallic strips
US4568569A · kind A · utility
6Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1983 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Feb 28, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C2/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for depositing composite metallic coatings on a metallic strip, involves bringing in contact with a metallic coating, deposited on the strip by using a continuous dip coating method, before setting of the metallic coating, an additive metal powder in suspension in a gaseous jet. The melting point of the additive metal powder is higher than that of the base coating metal, so that the additive metal powder particles penetrate into the coating in order to obtain a composite structure imparting to the strip an increased corrosion resistance, compared to that provided by a base coating free from additive metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.