Process for producing low-oxygen metal powder
US8012235B2 · kind B2 · utility
8Cited by
4References
4Claims
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Key dates
| Filing date | Apr 14, 2006 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Jan 23, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing a low-oxygen metal powder, comprising passing a raw metal powder coated by hot melting of a hydrocarbon organic compound through thermal plasma flame composed mainly of an inert gas so as to reduce the content of oxygen in the raw metal powder. Preferably, the obtained metal powder is subjected to heat treatment in vacuum or hydrogen atmosphere. Preferred example of the hydrocarbon organic compound is stearic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.