| 简介 |
PROBLEM TO BE SOLVED : To provide a rare earth permanent magnet improved in magnetic characteristics of a permanent magnet by being appropriately subjected to magnetic field orientation, and a method for producing a rare earth permanent magnet.SOLUTION : A compound 12 is formed by : pulverizing a magnet raw material into magnet powder; and mixing the pulverized magnet powder and a binder. Then, a green sheet 14 is prepared by molding the formed compound 12 in a sheet form on a support substrate 13 by hot melt molding. The molded green sheet 14 is thereafter heated to be softened by using a heating apparatus 37 where a heat medium is used as a heat source, and the heated green sheet 14 is subjected to magnetic field orientation by being applied with a magnetic field. The green sheet 14 after the magnetic field orientation is further sintered to produce a permanent magnet 1.COPYRIGHT : (C)2013, JPO&INPIT |
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