| 摘要 |
PURPOSE:To obtain a method wherein material powder is hardened in a specified form to obtain a magnet without decomposing R-Fe-N compound in an R-Fe-N based rare earth magnet, and improve magnet characteristics. CONSTITUTION:In the manufacturing method of a rare earth metal manget expressed by a general formula RxFe100-x-yNy (where R is a rare earth element containing Y, and 5<=x<=30 and y<=39 in atomic %), 10wt.% or less of one or more kinds of low melting point metal out of Sn, Zn, Al, Sb, Bi, Se, Gu, Te, In, Cd and Pb is added as binder to the material powder of the rare earth magnet, and hot pess is performed. In another mode, R-Fe based eutectic alloy like low melting point Sm75Fe25 and Nd75Fe25 is used as the binder. Further, in another mode, R-Fe-T constituted by adding a third element is used as the binder. |
