The method for manufacturing the same and a nanocomposite bulk magnet

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PROBLEM TO BE SOLVED : To provide a manufacturing method of a nanocomposite bulk magnet of an R-Fe-B system, which has a high density as a bulk mold and excellent anti-corrosion. SOLUTION : This method includes a step of preparing quickly cooled nanocomposite magnetic alloy powder of a an R-Fe-B system containing 10 % by mass of first grains 53 μm or less in diameter, and a step to obtain a bulk mold by hot molding the above quench nanocomposite magnetic alloy powder. COPYRIGHT : (C)2004, JPO