PURPOSE: To improve the yield in the forging and rolling stages and enable the continuous melting of a metal without causing bridges, at the time of producing a metallic ingot by an induction-slag melting method by drawing it out while the molten metal is rotated.
CONSTITUTION: In the method for continuously producing an ingot of a high m.p. metal or the like by utilizing an induction-slag melting method in an argon or vacuum atmosphere, the metal is drawn while it is rotated in the drawing stage. By this method, the metal having a uniform structure can be obtd., the occurrence of bridges easily formable on the surface of the molten metal can be prevented, the movement of heat to a melting crucible is suppressed to reduce the consumption unit of a power source, and the intrusion of impurities from slag or the like can be suppressed. Furthermore, the yield in the forging and rolling stages can be improved.
SAKAKI TAKASHI
HORII MASAAKI
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