Process for preparing cemented tungsten carbide
US4013460A · kind A · utility
16Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1973 |
| Grant date | Mar 22, 1977 |
| Priority date | — |
| Expiry date | Sep 6, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C1/055
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is a process for making shaped, dense, hard, fine grain tool quality tungsten carbide by the interaction of tungsten, carbon and cobalt during a single heat treatment to form WC + Co compositions. The interaction occurs in situ without the aid of applied pressure. The interaction produces wares of high density with excellent mechanical and cutting properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.