METHOD OF CASTING WITH USE OF INVESTMENT PATTERNS AND WITH CRYSTALLIZATION UNDER PRESSURE

摘要

FIELD: casting production. SUBSTANCE: method comprises steps of filling a ceramic mold, had been molded beforehand and fastened over a metal receiver, by extruding a melt out of the metal receiver with the aid of a punch at temperature of crystallization beginning and by subsequent sustaining of a pressure upon the melt, in a range 0.2-0.5 MPa; performing a filling for pure metals and alloys, crystallizable in a narrow temperature range, upon their melting temperature, increased by 10 C, and for alloys, crystallizable in a wide range, at a temperature, being different from their melting temperature by ± 10^°C. EFFECT: increased yielding at making complex-configuration castings. 2 cl, 1 dwg