Copper-tin type sintered alloy for oil-impregnated bearing excellent in bearing performance as bearing used in low-load and high-velocity region
US4274874A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1979 |
| Grant date | Jun 23, 1981 |
| Priority date | — |
| Expiry date | Sep 21, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12153
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A copper-tin type sintered alloy for an oil-impregnated bearing excellent in bearing performance particularly as a bearing used in low-load and high-velocity region, having a chemical composition consisting essentially of, in weight percentage: ______________________________________ Tin from 8 to 11% Phosphorus from 0.2 to 1.7% ______________________________________ at least one solid lubricant, having an average particle size of from 20 to 80 .mu.m, selected from the group consisting of: ______________________________________ Molybdenum disulfide from 1.1 to 11%, and Tungsten disulfide from 1.7 to 17%, ______________________________________ Where, PA0 the total amount of molybdenum disulfide and tungsten disulfide being up to 17%; and, PA0 the balance copper and incidental impurities; PA0 said sintered alloy being prepared by sintering a green compact having said chemical composition at a temperature of from 650.degree. to 750.degree. C. for 10 to 30 minutes; and, PA0 said sintered alloy including a copper-tin type sintered alloy for an oil-impregnated bearing, also containing at least one element selected from the group consisting of, in weight percentage: _______________________…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.