Method of making a submicron cemented carbide with increased toughness
US6214287A · kind A · utility
92Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2000 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Apr 6, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a method of making a cemented carbide comprising WC, 6-12 wt. % Co and 0.1-0.7 wt. % Cr, wherein the WC-grains are coated with Cr prior to mixing and no milling takes place during the mixing step. As a result a cemented carbide with improved properties is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.