Process for obtaining novel blanks for extrusion by impact
US4113473A · kind A · utility
16Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1977 |
| Grant date | Sep 12, 1978 |
| Priority date | — |
| Expiry date | Mar 16, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C23/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to the manufacture of aluminum alloy blanks containing a large quantity of silicon and designed for extrusion by impact. It consists in applying the method of casting with oriented cooling in the main patent to a hypereutectic silicon aluminum alloy which has previously been refined with phosphorus. An even distribution of the remarkably fine primary silicon crystals is obtained in this way. The invention is particularly applicable to the manufacture of linings for heat engines made of aluminum alloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.