To provide a method for producing an alloy ingot, in which the concentration of an additive material is homogeneous, and to provide an alloy ingot and a melting furnace capable of making the concentration of an additive material homogeneous.
A method for producing an alloy ingot includes: a step of loading an alloy raw material containing a base material and an additive material 5 with a lower specific weight than that of the base material, into a crucible 2; a step of generating a molten metal 3 by heating the inside of the crucible 2 to melt the alloy raw material loaded into the crucible; and a step of stirring the molten metal by intermittently feeding power to an inductive coil 14 provided around the crucible from a power feeding unit 15 to cause a temperature gradient in the molten metal after the molten metal reaches a predetermined temperature while rotating a blade 10 disposed at a boundary region 9 between a region 7 where the concentration of the additive material is high in the molten metal and a region 8 where the concentration of the additive material is low.
Hitoshi Kiyono
Fukuoka Masahiro
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