FIELD: construction.
SUBSTANCE: method comprises the stages of forming the slurry containing a liquid for grinding, binding metal powders, the first powder fraction and the second powder fraction, crushing, drying, pressing and sintering the slurry. The first powder fraction obtained from recycled cemented carbide scrap by using the Zn extraction process includes such elements as W, C, Co, and at least one or more such elements as Ta, Ti, Nb, Cr, Zr, Hf, and Mo. The second powder fraction includes primary raw material from WC. Wherein the first powder fraction is subjected to the grinding stage for the slurry formation stage, to obtain grains of the average size of between 0.2 to 1.5 microns.
EFFECT: producing cemented carbide comprising the fine-grained gamma phase.
18 cl, 9 tbl, 6 ex
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