METHOD FOR PRODUCING CARBON-GRAPHITE COMPOSITE MATERIAL Russian patent published in 2021 - IPC B22F3/26 C22C1/08 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of metallurgy, namely to the creation of composite materials by impregnating a porous frame. A method for producing a carbon-graphite composite material includes vacuum degassing of a porous carbon-graphite workpiece in a nickel electrolyte solution 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. Electroplated coating is applied to the carbon-graphite workpiece. Electroplating is made of sequentially applied inner nickel, intermediate zinc and silver and outer copper layers. The carbon-graphite workpiece is impregnated in the impregnation chamber with antimony matrix alloy melt under the influence of excess pressure due to thermal expansion of the lead melt in the pressure chamber when heated by 100°С above the liquidus temperature of the matrix alloy simultaneously with the lead melt.

EFFECT: composite materials quality improvement.

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