Method for treating the surface of a part and resulting part
US7074460B2 · kind B2 · utility
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3References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 18, 2001 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Sep 13, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D1/62
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A surface treatment method in which a surface of a part (7) is contacted with at least one activated species. The activated species is obtained by activating a gaseous medium containing at least two of the following elements: carbon, nitrogen, boron and oxygen. Preferably, the activated species is a neutral excited CN species. The activated species brings at least one interstitial element to the metal part (7) surface which is borne and maintained at a temperature enabling the interstitial element to be diffused into a surface layer of the metal part (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.