METHOD FOR FORMING POLYETHYLENE TETRAFLUORIDE RESIN TRANSFER FILM ON METAL SURFACE, AND SLIDING MEMBER USING THIS METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for forming a PTFE transfer film with excellent lubricity on a metallic surface in an atmospheric pressure circumstance, utilizing a reductive hydrogen gas, and a sliding member using the same. SOLUTION: The PTFE transfer film is formed on the metallic surface by sliding the PTFE in contact with a metal in a hydrogen gas atmosphere. Thus the sliding characteristics of the metal is enhanced by optimizing the composition of the metal and/or its surface roughness. In addition, the sliding member is made into a tightly closed structure by sealing, then the hydrogen gas of high purity is sealed or continuously blown into the tightly closed structure. At the same time, the PTFE transfer film is formed in the sliding member by making the sliding member slide the PTFE. COPYRIGHT: (C)2009,JPO&INPIT