FIELD: foundry, possibly manufacture of complex-profile molds for producing cast pieces of carbon-containing and stainless alloys.
SUBSTANCE: method comprises steps of layer-by-layer applying onto investment pattern suspension on base of refractory material and sprinkling surface of mold with quartz sand for each layer. At application of third layer quartz sand sprinkling is realized with addition of synthetic corundum in quantity consisting of 30% of the common mass of quartz sand.
EFFECT: enhanced strength of ceramic molds.
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