METHOD FOR PRODUCING A PRODUCT FROM A COMPOSITE MATERIAL BASED ON TUNGSTEN AND TITANIUM CARBIDES (VERSIONS) Russian patent published in 2022 - IPC C22C1/05 B22F3/12 C22C29/06 

FIELD: powder metallurgy.

SUBSTANCE: invention relates to powder metallurgy, in particular to a method for producing products from sintered composite materials based on tungsten and titanium carbides. Can be used for making carbide inserts. Powder mixture containing 10-30 wt.% steel Hadfield 110G13 or 3-10 wt.% iron and/or cobalt, and/or nickel as alloying elements and a mixture of tungsten carbide and titanium carbide composition TiC_0.65 - TiC_0.48 or TiC_0.68 - TiC_0.53 in a ratio of 7:3 - the rest is molded at 200-300 MPa. The resulting product is sintered in a vacuum or in an inert atmosphere at a temperature of 1350-1400°C for 30-60 minutes. Or a powder mixture containing 3-10 wt.% iron and/or cobalt and/or nickel as alloying elements and a mixture of tungsten carbide and titanium carbide composition TiC_0.65 - TiC_0.48 or TiC_0.68 - TiC_0.53 in the ratio 7:3 - the rest, molded at 200-300 MPa to obtain the frame of the product. The resulting frame is sintered at 1600±10°C in an inert gas atmosphere, impregnated with a melt of titanium nickelide and titanium carbide, taken in a mass ratio of 8:2, at a temperature of 1350-1400°C in vacuum, and diffusion annealing is carried out at a temperature of 700-900°C in vacuum for 4-6 hours.

EFFECT: high operational characteristics on hardness and durability are provided.

3 cl, 6 ex, 2 dwg