Sintered contact component
US5518519A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1995 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Jul 25, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C32/0089
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention concerns copper-based sintered components for use as contact components such as clutches and brakes and is intended to provide a sintered component comprising hard particles admixed with and finely and uniformly dispersed in a primary particle of a matrix to provide improved friction coefficient, and in which the dispersed hard particles are inhibited from coming off the Cu--Sn alloy matrix during contact movement so that the sintered component is possessed of good friction contact characteristics and improved mechanical properties under dry and wet conditions. The sintered contact component comprises a copper-based sintered alloy having a structure such that 15 to 25 wt % of a hard particulate material having a maximum particle diameter of not more than 15 .mu.m and a mean particle diameter of not more than 5 .mu.m is uniformly dispersed within copper particles in an alloy matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.