METHOD OF PROCESSING CONTACT PORTIONS BETWEEN VALVE PLATE AND SUCTION VALVE AND/OR DISCHARGE VALVE OF RECIPROCATING COMPRESSOR, AND RECIPROCATING COMPRESSOR

摘要

[Object of the Invention] An object of the present invention is to provide a method for processing contact portions between a valve plate and a suction valve and/or discharge valve of a reciprocating compressor to prevent the suction valve and/or the discharge valve from sticking on the valve plate at the portions contacting the valve plate, the productivity thereof being higher than that of the conventional method. [Disclosure of the Invention] A method for processing contact portions between a valve plate 8 and a suction valve 10a and/or discharge valve 10b of a reciprocating compressor to prevent the suction valve 10a and/or the discharge valve 10b from sticking on the valve plate 8 at the portions contacting the valve plate 8 comprises the steps of quenching the portion of the end face of the valve plate 8 contacting the suction valve 10a near the suction hole 8a and/or the portion of the end face of the valve plate 8 contacting the discharge valve 10b near the discharge hole 8b by laser beam machining without melting them, and grinding the end face of the valve plate 8 contacting the suction valve 10a and/or the end face of the valve plate 8 contacting the discharge valve 10b to project the quenched portions from the remaining unquenched portions.