METHOD FOR PRODUCING TUNGSTEN CARBIDE/COBALT CEMENTED CARBIDE USING PARTICLE GROWTH INHIBITOR

PROBLEM TO BE SOLVED: To provide a method for producing WC/Co cemented carbide which enables enhancement in refinement and uniformity of particles and realizes the simplification of the process. SOLUTION: In this method for producing tungsten carbide/cobalt cemented carbide, water soluble salt containing vanadium, tuntalum and chromium components as a particle growth inhibitor is added when mixing the water soluble salt of tungsten and cobalt as the initial stage in the production of tungsten carbide/cobalt cemented carbide to produce powder in which the particle growth inhibitor is uniformly dispersed, by which the abnormal growth of tungsten carbide is effectively controlled in the sintering stage as the production process of cemented carbide to improve its mechanical properties.