PRODUCING METHOD OF WC-CO COMPOSITE POWDER

摘要

A method for manufacturing tungsten carbide-cobalt composite powder is provided to compound cobalt powder with tungsten carbide powder uniformly and suppress oxidation of the cobalt powder by exploding the cobalt metal line in manufactured slurry. A method for manufacturing tungsten carbide-cobalt composite powder comprises the following steps. Tungsten carbide powder and a fluid are mixed to manufacture slurry using a binder and a dispersing agent(S110). A cobalt metal line in the slurry is exploded electrically(S120). The fluid in the slurry is dried(S130). The binder is selected among polyvinylpyrrolidone, polyethyleneimine, polydiallydimethylammonium chloride, etc.