REFRIGERANT COMPRESSOR, REFRIGERATING DEVICE

PROBLEM TO BE SOLVED: To prevent wear and seizure in a bearing part of a compressor, to which lubricating oil may not be supplied temporarily, in a refrigerant compressor using an R600a refrigerant.SOLUTION: In the refrigerant compressor using R600a (isobutane) as an operating refrigerant, as a surface treatment method for a sliding member, an oxide film formed in the surface is scraped so as to surely form a diffusion layer in the surface of a base material, and a DLC coating layer is formed by forming a pure chrome film layer as a lower layer, a tungsten carbide layer and an Me-DLC layer as intermediate layers, and performing the DLC treatment to the top part thereof to improve adhesion to the base material. Further, outbreaks of seizure and abnormal wear of the sliding part due to the DLC coating layer formed in the outermost surface can be prevented. Thus, the refrigerant compressor having high reliability and a refrigerating device using the same can be obtained.