METHOD FOR PRODUCING RARE EARTH MAGNET POWDER, AND RARE EARTH BOND MAGNET

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PROBLEM TO BE SOLVED : To provide a method for producing a rare earth magnet powder in which a nitridation amount is uniform, and also, magnetic properties in the nitridation amount are satisfactory, and to provide a rare earth bond magnet. SOLUTION : The method for producing a rare earth magnet powder where a magnet powder having a composition containing a rare earth element(s) and iron is nitrided includes : an over-nitriding stage for surplusly infiltrating nitrogen into the magnet powder; and a surplus nitrogen exhausting stage for exhausting nitrogen surplusly comprised in the magnet powder. The rare earth bond magnet is obtained by using the magnet powder produced by the production method. COPYRIGHT : (C)2008, JPO&INPIT