FIELD: metallurgy.
SUBSTANCE: method involves vacuum degassing of porous coal-graphite billet, its impregnation with molten metal matrix aluminum alloy under effect of excessive pressure due to thermal expansion of melt at heating above temperature of liquidus of aluminum alloy. Degassing is performed before immersion of porous workpiece into melt of matrix alloy, and before impregnation porous workpiece is covered with two-layer galvanic coating consisting of internal copper and outer zinc layers.
EFFECT: invention relates to production of coal-graphite composite material.
1 cl, 2 dwg, 1 tbl, 1 ex
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