METAL SINTERE BODY AND PRODUCTION METHOD THEREOF

摘要

A metal sintered body which is high in hardness, excellent in abrasion resistance and easy to produce and a method of producing it, the method comprising a step 1A of producing by a metal powder injection molding (MIM) method a molded product containing metal powder and a binder, a step 2A of degreasing the molded product and a step 3A of sintering the obtained degreased product to form the metal sintered body, the metal powder used consisting of a self-fluxing alloy such as a nickel-based self-fluxing alloy, a Vickers hardness Hv on the surface of the produced metal sintered body being not smaller than 500.