FIELD: metallurgy.
SUBSTANCE: method includes model manufacturing, layerwise application on model of fireproof suspension, dusting of each layer by fireproof material, drying, model removing, mold impregnation by strengthening solution and tempering at temperature 1150-1350°C during 4-8 hours. Strengthening solution contains, wt %: organic-silicon lacquer 10-25, ethyl alcohol is the rest.
EFFECT: hardening of ceramic mold.
3 cl, 4 ex
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