Cemented carbide body with a binder phase gradient and method of making the same
US4820482A · kind A · utility
60Cited by
26References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | May 5, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to a cemented carbide body, preferably for rock drilling, mineral cutting and wear parts, in which the content of binder phase in the surface is lower and in the center higher than the nominal content. In the center there is a zone having a uniform content of binder phase. The WC grain size is uniform throughout the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.