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Method of manufacturing rare earth-iron bond magnet

2025-06-18 08:233170下载
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A powder molded magnet manufactured by a method comprising the steps of : (1) forming a granular compound of diameter of not more than 250 μm with a rare earth-iron rapid-quenched flake, which has not more than 150 μm in diameter, being coarsely ground if necessary, and a binder, (2) dry-blending the granular compound with fatty acid metallic soap powder, (3) forming compressed powder from the granular compound dry-blended with the fatty acid metallic soap powder, by powder molding, and (4) heat-treating the compressed powder to a temperature higher than a thermally dissociating temperature of stabilized isocyanate.


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