Tip for a pick tool, method of making same and pick tool comprising same
US9562431B2 · kind B2 · utility
4Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2012 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Oct 26, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/1837
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tip for a pick tool, comprising a polycrystalline diamond (PCD) structure joined to a substrate body. The PCD structure has a strike surface including an apex opposite a boundary with the substrate body. At least an outer volume of the PCD structure contains filler material between diamond grains, the content of the filler material being more than 5 weight percent of the PCD material in the outer volume. The outer volume is proximate at least an area of the strike surface including the apex, and the thickness of the PCD structure between the apex and the boundary with the substrate body is at least 2.5 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.