Method for producing a metal base material provided with a sliding layer, and the use thereof
US8551569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2002 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Jun 18, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for producing a metal base material that is provided with a sliding layer that has a thickness of more then 50 μm, said base material being used as a sliding element. According to the invention, the base material is coated with a paste of the sliding layer material that contains at least one high-temperature polymer in addition to a fluoropolymer, and the base material so coated is subjected to a thermal treatment. The past applied to the base material contains as the fluoropolymer between 40% by volume and 75% by volume polytetrafluorethylene (PTFE) or polytetrafluorethylene (PTFE) with other fluoropolymers added and between 60% by volume and 25% by volume of the at least one high-temperature polymer, each based on the entire composition of the finished sliding layer. The high-temperature polymer used is selected from those high-temperature polymers whose melting pint is not below 327° C., if they are mainly crystalline, or whose glass transition temperature is not below 327° C., if they are mainly amorphous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.