FIELD: technological processes.
SUBSTANCE: invention relates to production of carbon-graphite composite material. Method includes vacuum degassing of porous carbon-graphite workpiece, its impregnation in impregnation chamber by molten 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 a four-layer galvanic coating consisting of internal copper, intermediate chromium and silver and outer nickel layers is applied on the porous workpiece.
EFFECT: higher quality of composite material.
1 cl, 2 dwg, 1 tbl, 1 ex
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