Lubricant packed wire drawing dies
US4016736A · kind A · utility
43Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1975 |
| Grant date | Apr 12, 1977 |
| Priority date | — |
| Expiry date | Jun 25, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2203/0685
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Wire drawing dies having improved life, relatively lower drawing force requirements and producing smooth surface on wires drawn therethrough comprise compacts of polycrystalline diamond, polycrystalline cubic boron nitride and mixtures thereof, which include a centrally-located double tapered hole having micro-rough walls, the micro-rough walls being densely packed with a lubricant for wire drawing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.