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METHOD FOR MANUFACTURING RARE EARTH SINTERED MAGNET, AND MATERIAL FOR THE RARE EARTH SINTERED MAGNE

2025-06-21 20:071690下载
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PROBLEM TO BE SOLVED : To simultaneously secure the grindability of an alloy and magnetic characteristics in preparing a magnetic powder when a rare earth sintered magnet is manufactured. SOLUTION : A method for manufacturing a rare earth sintered magnet includes the steps of : casting alloy melt containing R, T and B to obtain an alloy; heat treating the alloy in an inert gas atmosphere or vacuum within a temperature range of from 700°C or more to 900°C or less; and grinding the alloy while a relationship of da
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