Thermally sprayed chromium nitride coating
US6780474B2 · kind B2 · utility
3Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Aug 27, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C4/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to a method including thermal spraying a chromium nitride coating material on to an article. The chromium nitride may be in a powder form before thermal spraying. In one aspect, the thermal spraying includes melting the coating material, propelling the molten coating material toward the article to be coated, and coating the article with the molten coating material. In another aspect, the coated article is one or more piston rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.