DEVICE FOR CASTING METAL INGOTS Russian patent published in 2018 - IPC B22D7/00 

FIELD: metallurgy.

SUBSTANCE: device for casting metal ingots includes vertically oriented open-ended mould with direct cooling having an inlet opening and an outlet opening, a movable lower plate, a chamber surrounding the walls of the mould for placing primary cooling medium, a movable support for the lower plate, jet means for directed supply of first cooling liquid to the outer surface of a seed ingot, cleaning means for removal of the first cooling liquid, and nozzles. The nozzles are functionally connected to the cleaning means for supplying the second cooling liquid. The outlet openings for supplying the second cooling liquid in amount less than the amount of the first cooling liquid fed by jet means. The nozzles are inclined so as to provide heating restoration of the outer shell by at least 100°C between a first position and a second position.

EFFECT: reduction of particle size after ingot hot rolling and reduction of macro segregation.

15 cl, 38 dwg, 6 tbl