Patent ID: 8939644
Filing Date: 2015-01-27
Classification: B05D,F04B,F05C,F16H,Y10T

Abstract:
1. A swash plate having a sliding surface that slides with respect to a shoe, consisting of: a substrate made of a material selected from the group consisting of an iron-based material, an aluminum-based material and a copper-based material and having a flat surface; a first resin layer having a thickness of 3-70 μm coated on the flat surface of the substrate and having a spiral annular groove or a plurality of concentric annular grooves formed in an outer surface thereof; and a second resin layer having a hardness less than that of the first resin layer and a thickness of 1-40 μm coated on the first resin layer to match the sectional shape of the spiral annular groove or multiple concentric annular grooves formed in the outer surface of the first resin layer and having minute irregularities formed in an entire surface thereof, the second resin layer consisting of a resin paint containing MoS wherein during the initial stage of sliding with respect to the shoe, the second resin layer serves as the sliding surface, after the initial stage of sliding, the second resin layer partially wears and exposes protrusions of the spiral annular groove or concentric annular grooves such that the protrusions or concentric annular grooves and the second resin layer adjacent to the protrusions or concentric annular grooves serve as the sliding surface, a lubricating oil is contained in the minute irregularities in the surface of the second resin layer, the thickness of the first resin layer is greater than the thickness of the second resin layer the second resin layer contains the MoS