METHOD FOR PRODUCING CARBON-GRAPHITE COMPOSITE MATERIAL Russian patent published in 2021 - IPC C22C47/08 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 carbon-graphite composite materials with a metal matrix having high electrical conductivity, anti-friction properties and resistance in aggressive environments. The method for producing a carbon-graphite composite material includes vacuum degassing of a porous carbon-graphite billet in a solution of a nickel electrolyte containing 140 g/l of nickel sulfate, 50 g/l of sodium sulfate, 30 g/l of magnesium sulfate, 20 g/l of dry boric acid, and successive application of a galvanic coating containing an inner nickel, intermediate zinc, and outer copper layers, and impregnation in the impregnation chamber with the antimony matrix alloy under the influence of excessive pressure due to the thermal expansion of the lead melt in the pressure chamber when it is simultaneously heated by 100°C above the liquidus temperature of the antimony matrix alloy, and the carbon-graphite billet is placed in the impregnation chamber at the temperature of the lead melt in the pressure chamber that is 5-10°С lower than the liquidus temperature of the lead alloy.

EFFECT: higher quality of composite materials.

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