| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive compressor having high reliability over a longer term, mitigating acceleration of wear in comparison with the existing HFC-based refrigerant by generating hydrogen fluoride and generating ferrous fluoride, especially on the surfaces of a vane and a piston which are severely slid, when a refrigerant mainly composed of hydrofluoroolefin having a double bond between carbon and carbon reacts to water and oxygen. SOLUTION: Since the refrigerant using the hydrofluoroolefin as a base component is used as an operating refrigerant, refrigerating machine oil 3 having compatibility with the refrigerant is used, and the vane 10 is subjected to a sintering and quenching treatment by the use of high-speed tool steel, the ferrous fluoride is generated by the hydrogen fluoride generated when the refrigerant is decomposed by sliding between the tip end 10a of the vane and the periphery of the piston 9 which are severely slid. Thereby, it is possible to suppress wear. The vane 10 is quenched and sintered, thereby providing a rigid structure with W, Mo, Cr and V carbides dispersed in fine martensite texture and further inexpensively producing the compressor. COPYRIGHT: (C)2011,JPO&INPIT |
