FIELD: metallurgy.
SUBSTANCE: metal is supplied to the mould and cooled by supplying liquid coolant to the solidifying metal in the casting pit. The casting pit has a top, middle, and bottom portions, and a movable slab. If a break of melt through of the ingot shell or its spreading is identified, the supply of metal into the casting mould, movement of the movable plate and coolant supply are stopped, the generated gas is pumped from the casting pit and inert gas is supplied to the casting pit which density is less than air density. In the event of a melt breakthrough, inert gas supply to the casting pit allows removal of water vapours and prevent explosion of hydrogen.
EFFECT: improved safety of casting, while improving the quality of ingots.
24 cl, 2 dwg
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