To provide a method for melting an alloy in a melting furnace, in which the additive is prevented from being left without melt so as to prevent the composition of the alloy from being mismatched.

The method for melting the alloy includes: a process in which before adding the additive 54, an electric power less in a prescribed amount than the necessary power consumption to melt and hold the alloy formed by melting the molten metal 52 and the additive 54, is supplied to the melting furnace 50; a process in which the additive 54 is added while supplying the power less in the prescribed amount to the melting furnace 50; and a process in which after adding the additive 54, the power consumption for supplying to the melting furnace 50 is returned back to the original necessary power consumption for melting and holding the alloy formed by melting the molten metal 52 and the additive 54. In this case, the power consumption for reducing the power is preferably set to the reduced power consumption for attaining a skull thickness almost matched to the assumed amount of the skull thickness in the case of being the necessary power consumption for melting and holding after adding the additive 54.

COPYRIGHT: (C)2006,JPO&NCIPI