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, in particular 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 an electrolyte solution. Electroplated coating is applied to the workpiece. The porous workpiece is impregnated with a lead matrix alloy melt under the influence of excessive pressure due to thermal expansion of the melt while heated above the liquidus temperature of the lead alloy. The electroplated coating is made of successively applied inner nickel, intermediate zinc and outer copper layers. Vacuum degassing is carried out 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.

EFFECT: composite materials quality improvement.

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