Sintering method
US6267797A · kind A · utility
10Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1999 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Apr 1, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2201/013
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There is disclosed a method of sintering cemented carbide bodies including heating said bodies to the sintering temperature in a suitable atmosphere and cooling. If said cooling at least to below 1200.degree. C. is performed in a hydrogen atmosphere of pressure 0.4-0.9 bar cemented carbide bodies with no surface layer of binder phase are obtained. This is an advantage when said bodies are to be coated with wear resistant layers by the use of CVD-, MTCVD- or PVD-technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.