| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide rare earth-transition metal-nitrogen-based magnet powder free from aggregation among grains, maintaining excellent weatherability and having high magnetic properties, to provide a resin composition for a bond magnet containing the same, and to provide a bond magnet. <P>SOLUTION: Disclosed are: a method for producing rare earth-iron-nitrogen-based magnet powder in which, regarding a method where rare earth element-containing iron-based magnet alloy powder is pulverized in an organic solvent, so as to produce magnet powder, magnet alloy powder is pulverized, thereafter, slurry containing the magnet alloy powder pulverized and aggregated each other is fed to an atomization apparatus, the slurry is stirred at a high speed within the atomization apparatus, and shear force is applied to the magnet alloy powder, so as to de-aggregate the same; rare earth-iron-nitrogen-based magnet powder obtained by the production method; a resin composition for a bond magnet essentially consisting of the rare earth-iron-nitrogen-based magnet powder and blended with a resin binder; and a bond magnet obtained by molding the resin composition for a bond magnet or the like. <P>COPYRIGHT: (C)2010,JPO&INPIT |
