FIELD: foundry. SUBSTANCE: method comprises steps of levitation melting of metal in inert medium at atmospheric pressure. Apparatus includes doubled chamber for casting mold. The last is arranged in inner portion of chamber. In chamber and in space over furnace pressure is reduced less than atmospheric one. After closing inner chamber the last and casting mold are moved towards furnace. Inert gas is blown to space over furnace in order to increase pressure. Metal is fed to casting mold through suction pipe. Chamber and casting mold are removed out of furnace. EFFECT: possibility for making high quality castings of active metals with high melting temperature. 10 cl
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Authors
Dates
2001-08-20—Published
1996-04-25—Filed