A manufacturing method of ultra granule cabonic tungsten powder

摘要

PURPOSE: A method for producing fine powder of tungsten carbide prevents large particle from being generated by adding chrome and vanadium. CONSTITUTION: Carbon powder is mixed with tungsten carbide powder uniformly, and chrome or vanadium is added as an inhibiting agent of growth. Then the mixture is heated for a temperature of 1000-1400C in an inactive state for carbonizing for a first time. And the content of the carbon is adjusted for finally carbonizing in a hydrogen state. Therefore, the tungsten carbide powder with fine particle size of average 0.2-0.4 micrometers without abnormal large particles is obtained.