Patent ID: 7695574
Filing Date: 2010-04-13
Classification: B22D,B22F,C21D,C22C,F25B,H01F,H01L,Y02B

Abstract:
1. A method for producing an RE-containing alloy represented by formula R(T 1−x A x ) 13−y (wherein R represents at least one species selected from among La, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Tm, Yb, Gd, and Lu; T represents at least one species selected from among Fe, Co, Ni, Mn, Pt, and Pd; and A represents at least one species selected from among Al, As, Si, Ga, Ge, Mn, Sn, and Sb (0.05≦x≦0.2; and −1≦y≦1)) comprising: a melting step of melting alloy raw materials at 1,200 to 1,800° C.; and a solidification step of solidifying the molten metal produced through the above melting step by rapidly quenching the molten metal, to thereby form the RE-containing alloy, wherein the solidifying is performed at a cooling rate of 10 wherein in the solidification step, the molten metal is rapid-quenched through any of strip casting, centrifugal casting with a tundish having a rotatable disk, and centrifugal casting.