Hardfacing composition for earth-boring bits
US5663512A · kind A · utility
101Cited by
30References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1994 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Nov 21, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hardfacing composition comprises at least 60% by weight of hard metal granules including a quantity of sintered carbide pellets and a quantity of cast carbide pellets. The cast and sintered carbides are selected from the group of carbides consisting of chromium, molybdenum, niobium, tantalum, titanium, tungsten, and vanadium carbides and alloys and mixtures thereof. The balance of the hardfacing composition is matrix metal with traces of flux or deoxidizer, and alloying elements. All percentages given are pre-application ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.