Dry friction material and method of preparing the same
US5753725A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1996 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Mar 8, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D69/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A friction material includes a composite hard grain disperse metal powder dispersed and held in a thermosetting resin matrix. The metal powder consists of a metal base comprising copper, aluminum, copper alloy or aluminum alloy and hard grains which are substantially homogeneously dispersed therein. The content of the hard grain disperse metal powder in the friction material is at least 20 percent and not more than 90 percent on a volume basis. The obtained friction material exhibits a stable coefficient of friction of at least 0.3 under dry sliding conditions while preventing the so-called semicontact phenomenon of locally coming into contact with a counter material even if a pressing load during frictional sliding is small.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.