FIELD: metallurgy.
SUBSTANCE: invention relates to composite materials with porous carcass impregnation having high electrical conductivity, antifriction properties and resistance to aggressive media. Method of producing graphite composite material comprises vacuum degassing of porous billet, its impregnation with molten metal matrix aluminium alloy under the effect of excessive pressure due to thermal expansion of the melt when heated above the liquidus temperature of the aluminium alloy, wherein degassing is carried out prior to submersion of porous workpiece into melt of matrix alloy, and before impregnation porous workpiece is coated with two-layer galvanic coating consisting of internal copper and outer nickel layers.
EFFECT: technical result is improved quality of composite by increasing permeability of pores of graphite billet.
1 cl, 2 dwg, 1 tbl, 1 ex
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