Cemented carbide body for rock drilling mineral cutting and highway engineering
US5718948A · kind A · utility
143Cited by
38References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1994 |
| Grant date | Feb 17, 1998 |
| Priority date | — |
| Expiry date | Mar 17, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12056
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to a coated cemented carbide body for rock drilling having a substrate containing at least one metal carbide and a binder metal and an at least partly covering coating comprising at least one diamond- or cBN-layer applied by CVD- or PVD-technique. The cemented carbide body has a core of cemented carbide containing eta-phase surrounded by a surface zone of cemented carbide free of eta-phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.