METHOD AND APPARATUS TO CAST METAL FROM TOP Russian patent published in 1994 - IPC

FIELD: metallurgy. SUBSTANCE: metal casting method provides for in series filling of ingots molds, located on height, equaled to molten bath level of first ingot mold. Speed of molten bath feeding is being decreased in process of casting from 20 - 16 to 1 - 5 ton/min in proportion of number of filled molds. To realize the method they use aggregate, in which ingot molds are linked by detachable troughs, mounted horizontally. Area of average passage cross-section of trough in interval equals to 1.4 - 1.8 of area of hole in ladle and its bottom is spaced from upper butt of mold for 2 - 5 maximum sizes of hole in ladle. Troughs are made of lined or refractory bricks and have appearance of baffle or pipe of round or square or segmented section. Ratio of trough cross section area at input to its cross section at output equals to 1.1 - 1.3 and hole of cylinder in ladle has leaf round or square form with variable section along thickness of lining. EFFECT: method and apparatus are used to cast ingots molds from top. 6 cl, 4 dwg, 1 tbl