The use of a precisely controlled metahne-hydrogen gas medium when regenerating tungsten-base hard alloy waste

摘要

The kinetics and the mechanism of reduction and carbidization processes of products of WC-Co hard alloy waste oxidation in methane-hydrogen gas medium of a precision composition have been studied. The use of a gas medium whose composition is close to the equilibrium with respect to carbon at a given temperature is shown to allow obtaining regenerated mixtures of stoichiometric content of combined carbon and almost with no impurities of free carbon.