Grain-oriented electrical steel sheet and method for manufacturing grain-oriented electrical steel sheet
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United States of America
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Mar 11, 2025
Grant Date -
Feb 24, 2022
app pub date -
Jan 8, 2020
filing date -
Jan 8, 2020
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Abstract
Grain-oriented electrical steel sheet having an aluminum borate coating able to impart larger tension that the past and a method for manufacturing grain-oriented electrical steel sheet are formed. The grain-oriented electrical steel sheet according to the present invention has a steel sheet and an insulating coating formed on the steel sheet and containing aluminum and boron, where the oxides contain crystalline oxides and a maximum value of an emission intensity ratio of boron with respect to aluminum at an interface between the insulating coating and the steel sheet, analyzed by glow discharge optical emission spectrometry, is 2.5 times or more and 4.0 times or less of the emission intensity ratio of boron with respect to aluminum in the insulating coating.
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