Sinterless powder metallurgy process for manufacturing composite copper strip
US5152959A · kind A · utility
13Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1991 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Jun 24, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a process for forming a composite strip material without any sintering step. The process includes blending a powdered high conductivity material such as powdered copper with a powdered low thermal expansion phase material such as a nickel-iron alloy, compacting the powders to form a green composite strip, heating the green strip to a hot rolling temperature and hot rolling the heated strip to a desired gauge. The heated strip is reduced less than about 45% to minimize the deformation of the low thermal expansion phase particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.