Mixed powder for powder metallurgy, sintered compact of powder metallurgy, and methods for the manufacturing thereof
US6132487A · kind A · utility
12Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1999 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Nov 9, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A mixed metallurgical powder is provided containing powdered copper used for the manufacture of sintered structural parts such as brushes. A sintered compact made of the mixed metallurgical powder and a method for the manufacture of the sintered compact are also provided. The powder and the sintered compact are provide with an extremely high corrosion resistance because, preferably, the mixed metallurgical powder contains powdered copper and 20-400 ppm by weight of Bi in the form of powdered Bi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.