METHOD FOR PRODUCING A METAL BASE MATERIAL PROVIDED WITH A SLIDING LAYER, AND THE USE THEREOF

摘要

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 than 50 mu m, 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 paste 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 point is not below 327 DEG C, if they are mainly crystalline, or whose glass transition temperature is not below 327 DEG C, if they are mainly amorphous.