LUBRICANT REMOVING METHOD, AND RARE EARTH SINTERED MAGNET MANUFACTURING METHOD

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PROBLEM TO BE SOLVED : To provide a lubricant removing method which efficiently removes a lubricant from a molded matter, and can obtain a high magnetic characteristic, while controlling a deformation after sintering and an occurrence of a crack; and to provide a rare earth sintered magnet manufacturing method. SOLUTION : After a composition which contains a lubricant composed of an organic substance as a component and an alloy powder having a predetermined constitution, and is press-formed in a magnetic field to obtain a molded matter; the lubricant is removed from the molded matter by making a heat treatment for the molded matter at a temperature area lower than the boil or resolving temperature of the lubricant, in an atmosphere gas containing hydrogen (H2) at least in a part of the process. COPYRIGHT : (C)2007, JPO&INPIT