Friction member and method of manufacture
US6612415B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Aug 1, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2250/0069
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A friction member is made up of a back plate, a non-asbestos friction material bonded to a surface of the back plate and produced by molding and curing a non-asbestos friction material composition, and a metal phosphate conversion coating formed between the back plate and the non-asbestos friction material. When new, the friction member has a breaking load, measured according to JIS D4422, of at least 9 MPa, and a percent bonded surface area, which is the ratio of the surface area of friction material attached to the back plate surface after shear to the surface area of friction material attached to the plate surface before shear, of at least 90%. Such friction members are highly resistant to rusting, have excellent adhesion and heat resistance, and can be produced with minimal sludge formation and easy process control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.