LAMINATED IRON CORE AND METHOD FOR MANUFACTURING THE SAME
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United States of America
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Feb 13, 2025
app pub date -
Oct 21, 2022
filing date -
Oct 21, 2022
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Abstract
Provided is a laminated iron core including: a laminate of electromagnetic steel sheets and a granular oxide that contains magnetite and covers a side surface of the laminate, in which a contact angle of a water droplet until 20 minutes elapses after dropping the water droplet on the side surface covered with the granular oxide is 80° or more. When heights of peaks detected in ranges of 2θ of 41° to 42° and 38° to 39° in XRD measurement of the side surface covered with the granular oxide are represented by H1 and H2, respectively, H1/(H1+H2) is 0.8 or more.
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