| 摘要 |
PROBLEM TO BE SOLVED: To improve abrasion resistance property by forming a sliding surface of an Oldham's ring of a self-rotation preventing mechanism as a dissimilar surface, carrying out precision work after steam process is carried out on an iron sintered alloy made Oldham's ring for improving abrasion resistance property, and mixing a base with a steam layer (a oxide film) having high hardness. SOLUTION: In a compressor in which a scroll type compression mechanism 5 in an enclosed container is driven by an electric motor, a turning scroll is turned through an Oldham's ring 6. Protrusions 17 are formed on two positions on a rectilinear diameter of a surface opposed to the turning scroll, and protrusions 18 are formed on two positions on a rectilinear diameter of a surface opposed to a frame, and they are faced to each other in perpendicular direction. In this case, steam process is carried out on the Oldham's ring 6 made of iron sintered alloy, and precision work is carried out on its surface. A base is mixed with a steam layer (an oxide film) 22 having high hardness and which is generated in a special hollow hole in the sintered alloy, and it is suppressed to agglutinate with counterpart cast iron surface so as to improve abrasion resistance property.
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