To provide a method for manufacturing a drive component which contributes to reducing consumption of a plating solution containing hexavalent chromium, and enhance security for human bodies and a harmonizing property to environment, by employing a coating which has a high level of abrasion resistance, sliding property, sealing property, corrosion resistance, and weathering resistance, without employing hard chromium plating.
The drive component has a composite coating film 11 on the base material 10, which consists of a carbide layer 12 as a base and an impregnated resin layer 13 therein. The carbide layer 12 comprises powder which is made from a WC-Co-Cr based or CrC-NiCr based carbide material and has a particle size of 60 μm or less, and forms a layered structure having micropores 12a. The resin layer 13 consists of a siloxane combined or fluorine-based resin material, and is impregnated into the micropores 12a.
NAKAJIMA FUMIO
KUBO RYOICHI
