METHOD FOR PRODUCING CARBON-GRAPHITE COMPOSITE MATERIAL Russian patent published in 2021 - IPC C22C47/12 C22C49/02 C22C49/14 C22C101/10 B22F3/26 C25D5/10 

FIELD: metallurgy, composite materials.

SUBSTANCE: invention relates to the field of metallurgy, namely the creation of composite materials impregnated with a porous frame, having high electrical conductivity, anti-friction properties, resistance in aggressive environments. The technical result is achieved in a method for obtaining a carbon-graphite composite material, which includes vacuum degassing of a porous carbon-graphite billet in an electrolyte solution, applying a copper-containing electroplating coating to the porous billet, impregnating it in the impregnation chamber with a melt of a matrix antimony alloy under the influence of excessive pressure due to the thermal expansion of the lead melt in the pressure chamber when heated at 100°C above the liquidus temperature of the matrix alloy simultaneously with the lead melt, while the electrolyte solution is used as a composition of, containing 40 g/l of copper sulphate, 40 g/l of stannous sulphate, 8 g/l of phenol, 70 g/l of sulfuric acid, 0.0005 g/l of thiourea, and a galvanic coating consisting of 80% copper and 20% tin is applied.

EFFECT: improvement of composite material quality.

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