FIELD: technological processes.
SUBSTANCE: invention relates to production of carbon-graphite composite material. Method includes vacuum degassing of porous carbon-graphite workpiece, its impregnation with melt of matrix alloy of lead under action of excessive pressure due to thermal expansion of melt at heating above temperature of liquidus of lead alloy. Degassing is performed before immersion of porous workpiece into melt of matrix alloy, and before impregnation porous workpiece is coated with three-layer galvanic coating consisting of inner copper, medium nickel and outer chromium layers.
EFFECT: higher quality of composite material.
1 cl, 2 dwg, 1 tbl, 1 ex
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Authors
Dates
2019-05-21—Published
2018-01-16—Filed