Process for producing refractory powder
US4478888A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1983 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Aug 4, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process for producing a carbide grade powder mixture for making a cemented metal carbide, a mixture of metal carbide particles and wax is formed at a temperature above the melting point of the wax. The wax includes less than about 2 percent by weight of a wetting agent for reducing the surface tension of the wax when in water. The blended mixture including metal binder particles is milled with a liquid milling medium comprising water to substantially uniformly disperse the metal binder particles and to produce a slurry. The slurry is dried to remove the milling medium and produce a powder comprising particles of metal carbide, metal binder and wax.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.