RARE EARTH MAGNET POWDER AND ANISOTROPIC TRUCKING SPRING MAGNET

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PROBLEM TO BE SOLVED : To improve a magnetic characteristic of a NdFeB anisotropic trucking spring magnet. SOLUTION : In rare earth magnet powder, carbon content obtained by pulverizing NdFeB rare earth magnet alloy containing a hard phase and a soft phase by using a wet ball mill becomes 4 mass% or below with mass of magnet powder as reference.