Process for producing sintered hard metals and an apparatus therefor
US4225344A · kind A · utility
22Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1978 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Jul 17, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to a process for producing sintered hard metals which comprises sintering a compact for the sintered hard metals or sintering a formed body obtained from the compact through a presintering treatment and, if necessary, a machining treatment, a part or all of the heating steps and cooling steps being carried out in an atmospheres of hydrogen and an atmosphere of carbon monoxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.