Method for manufacturing magnetic powder, method for manufacturing compact, magnetic powder, and compact
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United States of America Patent
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Oct 24, 2023
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app pub date -
Jul 2, 2021
filing date -
Aug 25, 2020
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Abstract
A method for manufacturing a magnetic powder includes a step of producing a magnetic powder by spray-drying a spray liquid containing first magnetic particles, second magnetic particles, a thermosetting resin, and an organic solvent. A magnetic powder includes first magnetic particles and a thermosetting resin coating film on surfaces of the first magnetic particles. The first magnetic particles are soft magnetic metal particles. The resin coating film contains second magnetic particles. The second magnetic particles have a smaller average particle size than the first magnetic particles.
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