LOW FRICTION-RESISTANT MECHANICAL PART

摘要

PURPOSE:To obtain a low friction-resistant mechanical part excellent in self- lubricity by forming a chemical adsorbing film of which the surface layer contains a fluorine group and the base part is chemically bonded to a base material by a siloxane bond on the surface of the mechanical part of a slide part such as a gear or a bearing. CONSTITUTION:For example, a slide member such as a gear made of ceramics such as SiO2 is immersed in a raw material soln. prepared by dissolving a surfactant such as CF3(CF2)7(CH2)2SiCl3. Since a large number of hydroxyl groups are contained in the surface of SiO2 the SiCl group of a substance containing a carbon fluoride group and a chlorosilane group and a hydroxyl group are reacted to generate dechlorination reaction and the bond of CF3(CF2)7(CH2)Si(O-)3 is formed over the entire surface of the slide part and a fluorine-containing monomolecular film 2 can be formed in a thickness of about 15Angstrom in the state chemically bonded to a base material.