TITANIUM CONTINUOUS CASTING DEVICE

摘要

Provided is a device for titanium continuous casting (1) capable, even when continuously casting large diameter titanium ingots or titanium alloy ingots, of suppressing component segregation thereof. The device for titanium continuous casting (1) comprises: a mold (3) having an upper section having a circular upper opening (3a) for pouring in molten metal (6), and a bottom section having a lower opening for continuously drawing ingots (11); and a plurality of plasma torches (4, 5) to heat the molten metal in the mold (3) from the upper opening (3a) side. The plurality of plasma torches (4, 5) are disposed so that the amount of heat input to the molten metal (6) present in the outer circumference enclosing the center of the upper opening (3a) is greater than the amount of heat input to the molten metal (6) present in the center of the upper opening (3a).

主权项

1. A titanium continuous casting device comprising
a mold which comprises an upper section comprising a circular upper opening for pouring in a molten metal of titanium or a titanium alloy, and a bottom section comprising a lower opening for continuously withdrawing an ingot of the titanium or the titanium alloy; a first and a second plasma arc irradiation units each being disposed so as to be faced to the upper opening of said mold and to irradiate the upper opening of said mold with a plasma arc; and a driving device which rotates at least said second plasma arc irradiation unit around a center of the upper opening of said mold, wherein said first plasma arc irradiation unit is disposed nearer to the center of said upper opening than said second plasma arc irradiation unit is disposed.