FIELD: metallurgy.
SUBSTANCE: invention relates to production of coal-graphite composite material. Method includes vacuum degassing of porous coal-graphite billet, its impregnation in impregnation chamber with melt of matrix alloy under effect of excessive pressure due to thermal expansion of lead melt in pressure chamber at heating by 100 °C above the liquidus temperature of the matrix alloy simultaneously with lead melt. Copper-phosphorous alloy is used as matrix 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: higher quality of composite material.
1 cl, 2 dwg, 1 tbl, 1 ex
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