Pull-back type indirect extrusion press
US4379398A · kind A · utility
11Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1981 |
| Grant date | Apr 12, 1983 |
| Priority date | — |
| Expiry date | Jun 9, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C35/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pull-back type indirect extrusion press is designed so that the scalping of billets can be effected inside the press independently of extrusion cycles and the scalped billet is allowed to stand by in a billet extrusion standby space which is provided with a heating element to heat the standby billet to maintain the same at a required temperature and into which a billet oxidation-preventive gas is admitted to prevent oxidation of the standby billet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.