RARE-EARTH BONDED MAGNET COMPOUND AND METHOD FOR PRODUCING RARE-EARTH BONDED MAGNET USING SAME
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United States of America
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Apr 10, 2025
app pub date -
Sep 28, 2024
filing date -
Sep 28, 2024
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Abstract
The present invention relates to a rare-earth bonded magnet compound, the compound including: a rare-earth magnet powder that includes a coarse powder and a fine powder; and a resin binder, in which the rare-earth bonded magnet compound is obtained by kneading the rare-earth magnet powder and the resin binder, the rare-earth magnet powder is obtained by mixing the coarse powder and the fine powder, the coarse powder has a D50 of 240 μm or more and less than 380 μm, the fine powder has a D50 of 35 μm or less, and the rare-earth magnet powder has a D90/D10, which is a ratio of D90 to D10 in a particle size distribution of the entire rare-earth magnet powder, of 28 or more and 37 or less.
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