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 melt of an aluminum matrix alloy under the influence of excessive pressure due to thermal expansion of the melt when heated above the liquidus temperature of the aluminum alloy. 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. Electroplating is made of sequentially deposited inner nickel, intermediate zinc and silver, and outer copper layers.

EFFECT: composite material quality improvement.

1 cl, 1 tbl