Sintered alloy superior in wear resistance
US9663844B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2013 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Dec 8, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2204/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sintered bearing has a structure in which Ni—P alloy particles having an average diameter of 10 to 100 μm are dispersed in an amount of 1 to 20% by mass in a Cu-based sintered alloy base, a Fe—Cu-based sintered alloy base or a Cu—Ni-based sintered alloy base. The Ni—P alloy particles are derived from a raw material powder comprising 1 to 12% by mass of P; and a remainder composed of Ni and inevitable impurities. The Cu-based sintered alloy base contains no less than 40% by mass of Cu. The Fe—Cu-based sintered alloy base contains no more than 50% by mass of Fe. The Cu—Ni-based sintered alloy base contains 20 to 40% by mass of Ni and 0.1 to 1.0% by mass of P; or contains 10 to 25% by mass of Ni, 10 to 25% by mass of Zn and 0.1 to 1.0% by mass of P.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.