Method for creating a corrosion-resistant aluminum surface
US5194138A · kind A · utility
27Cited by
5References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1990 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Jul 20, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/56
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for treating the surface of an aluminum-based material so as to make the surface resistant to corrosion includes the steps of contacting the surface with an aqueous cerium non-halide solution and then contacting the surface with an aqueous cerium halide solution. These steps may optionally be followed by a step of positively charging the metal surface while in contact with an aqueous molybdenum solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.