METHOD OF MANUFACTURING COMPOSITION FOR METAL POWDER CONTAINING RESIN MOLDED BODY, PREFORMING BODY,

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PROBLEM TO BE SOLVED : To provide a method for manufacturing a metal sintered body containing low oxygen and having high density even when metal fine powder containing low oxygen is used. SOLUTION : A method includes the steps of : adjusting atmosphere gas so that oxygen concentration in the atmosphere gas in a kneader before metal fine powder containing low oxygen is injected thereinto is kept to be 200 ppm or less; melting the resin injected into the kneader; and injecting the metal fine powder containing low oxygen into the molten resin and kneading them in the presence of the atmosphere gas whose oxygen concentration is 200 ppm or less. COPYRIGHT : (C)2015, JPO&INPIT