DEVICE FOR CASTING OF ALUMINIUM-LITHIUM ALLOYS Russian patent published in 2017 - IPC B22D11/22 

FIELD: metallurgy.

SUBSTANCE: device contains a casting pit, a casting table that is fitted with a casting mould with coolant tank, means for feeding coolant to solidification zone of cast alloy connected to coolant tank, a valve system containing at least one first valve and a second valve, a molten metal breakthrough detector, and a controller connected to the sensor and valves. Coolant is supplied through means for feeding coolant through the first valve, inert gas is supplied through the second valve. When breakthrough of molten metal is detected through ingot shell, inert gas is supplied to the coolant supply means and the first valve is shut off to stop coolant supply. In this case, the area at the top of the casting pit and around the mould will be filled with inert gas with displacement of coolant, prevention of gaseous hydrogen formation and exclusion of melt contact with coolant in this area.

EFFECT: reduced probability of explosion in the area of melt break through the ingot shell.

19 cl, 3 dwg