INGOT PRODUCING METHOD AND APPARATUS FOR PERFORMING THE SAME Russian patent published in 2007 - IPC B22D7/00 B22D27/04 

FIELD: ferrous metallurgy.

SUBSTANCE: method comprises steps of placing slag-forming mixture onto bottom of ingot mold; before pouring melt into ingot mold, introducing powdered wire in the form of two or more coaxial helixes. One helix is filled with inoculation additive, other helixes are filled with modifying additive. Diameter of helix with inoculation additive consists half of ingot diameter. It allows decrease intensity of convective fluxes in ingot. Upper ends of said helixes are fixed at level of butt of ingot mold and hot top. Lower free ends of helixes are arranged at level consisting of 2/3 of ingot body height. It provides complete melting of slag forming mixture to time moment of starting interaction of melt metal with powdered wire.

EFFECT: improved chemical and physical uniformity of ingots.

2 cl, 3 dwg