Process for heating steel powder compacts
US4153485A · kind A · utility
8Cited by
10References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1977 |
| Grant date | May 8, 1979 |
| Priority date | — |
| Expiry date | Aug 17, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0235
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is provided for heating steel powder compacts in a controlled atmosphere consisting of a primary gas containing at least 80% by volume of an inert gas, and a secondary gas comprising 0.1 to 5% by volume, based on the volume of said primary gas, of a paraffinic hydrocarbon. The process makes it possible to reduce the residual oxygen concentration in the steel powder compacts, while maintaining accurate control of the carbon content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.