Surface treating method by electric discharge
US5858479A · kind A · utility
22Cited by
0References
11Claims
0Family size
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Key dates
| Filing date | Jan 15, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jan 15, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C26/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A surface treating method uses an electric discharge machining to form a coating layer having strong adhesion and excellent characteristics on a metal surface such as a hard metal. A discharge electrode is formed by powders containing metal hydride. Electric discharge is generated in a working fluid containing carbon between the discharge electrode and a workpiece. Thus, a coating layer of the metal hydride is formed on a surface of the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.