Abstract: A first member is configured to undergo sliding contact with a surface of a second member. The surface of the first member is roughened by irradiating the surface of the first member with a laser to form first recesses in the surface of the first member. The surface of the first member is then cleaned followed by a finely roughening step of irradiating the first recesses formed in the surface of the first member with a plasma to form second recesses which are shallower than the first recesses. Thereafter, a fluorocarbon resin is coated on the surface of the first member so that the fluorocarbon resin securely contacts and adheres to the surface of the first member due to the rough and clean state thereof. The surface of the first member is then subjected to a heat treatment.

Abstract: A method of coating a fluorocarbon resin includes roughening a coating surface by shot-blasting using a water-soluble shot material or a vaporizable shot material or by irradiation of laser or plasma. The method provides a high-quality fluorocarbon resin coating having excellent contact and adhesion properties, which is not peeled off even during a sliding movement performed under severe load conditions. In addition, a shot material used in the coating substrate treatment does not remain in a base material made of an aluminum alloy or the like in the vicinity of a coating layer. Thus, there is no possibility that residual shot material damages the coating layer or the like.