초록 ▼

A paint composition including a surface-modified fluoro-resin powder and a dispersion medium for dispersing the fluoro-resin powder, with the dispersion medium containing a heat-resistant resin and a solvent for dissolving the heat-resistant resin. The paint composition is useful for painting a slid

A paint composition including a surface-modified fluoro-resin powder and a dispersion medium for dispersing the fluoro-resin powder, with the dispersion medium containing a heat-resistant resin and a solvent for dissolving the heat-resistant resin. The paint composition is useful for painting a sliding part, such as parts of a compressor. In particular, the paint composition is useful for forming a resin layer on sliding surfaces that contains the surface-modified fluoro-resin powder and heat-resistant resin for enhancing sliding properties of these surfaces.

대표청구항 ▼

The invention claimed is: 1. A sliding part comprising a metal base material and a coating film that is formed on the surface of the base material, wherein the film contains a surface-modified fluoro-resin powder and a heat-resistant resin, and the thickness of the film is from 5 to 50 microns.

The invention claimed is: 1. A sliding part comprising a metal base material and a coating film that is formed on the surface of the base material, wherein the film contains a surface-modified fluoro-resin powder and a heat-resistant resin, and the thickness of the film is from 5 to 50 microns. 2. The sliding part according to claim 1, wherein the film further contains a solid lubricant other than said fluoro-resin powder. 3. The sliding part according to claim 2, wherein the solid lubricant is molybdenum disulfide, tungsten disulfide, graphite, or boron nitride. 4. The sliding part according to claim 1, wherein said sliding part is a part of a compressor. 5. The sliding part according to claim 1, wherein said sliding part is a swash plate in a swash plate compressor. 6. The sliding part according to claim 1, wherein said sliding part is a shoe in a compressor. 7. The sliding part according to claim 1, wherein said sliding part is a rotary valve in a piston compressor. 8. The sliding part according to claim 1, wherein said sliding part is a piston in a piston compressor. 9. The sliding part according to claim 1, wherein said heat-resistant resin is polyamide imide. 10. The sliding part according to claim 1, wherein said fluoro-resin powder is polytetrafluoroethylene powder. 11. The sliding part according to claim 1, wherein said fluoro-resin powder has an average primary particle diameter of 5 μm or smaller. 12. The sliding part according to claim 1, wherein the surfaces of said fluoro-resin powder are modified by a plasma treatment method. 13. The sliding part according to claim 1, wherein the surfaces of said fluoro-resin powder are modified by a metallic sodium complex method. 14. The sliding part according to claim 1, wherein the thickness of the film is from 10 to 30 microns. 15. The sliding part according to claim 1, wherein all fluoro-resin powder contained in the film is surface-modified. 16. A sliding part comprising a sliding surface formed of a resin layer containing a surface-modified fluoro-resin powder and a heat-resistant resin, wherein the ratio of the weight of the fluoro-resin powder contained in said resin layer to the weight of the heat-resistant resin contained in said resin layer is no less than 1 and no more than 19.