DLC METHOD FOR SURFACE TREATMENT OF DLC COATED MEMBER

摘要

The present invention has the following configuration: a DLC coating member having a DLC film coated on the surface of the base material as a processing target; Substantially spherical spray particles having an average particle diameter (D50) of 1 μm to 20 μm and a fall time in air of 10 s/m or more are sprayed onto the surface of the DLC film of the DLC coating member at a spray pressure of 0.01 MPa to 0.7 MPa and; forming the grooves on the surface of the DLC film so that the total projected area of the grooves is 50% or more of the treatment area without exposing the base material; It relates to a surface treatment method of a DLC coating member, characterized in that the DLC film is processed to have an arithmetic mean height (Sa) of 0.01 μm to 0.1 μm and a texture aspect ratio/Str of 0.4 or more.