Grain Oriented Electromagnetic Steel Sheet And Method For Producing Same

Abstract: A grain-oriented electromagnetic steel sheet according to an embodiment of the present invention has magnetic domain refining process lines indicating the portions at which a magnetic domain refining process is carried out on magnetic domain control process lines that form an angle of 0-45° with respect to the direction perpendicular to the rolling direction and that are arranged in the rolling direction. The regions, of the magnetic domain control process lines, in which the magnetic domain refining process lines are absent and that have a length of 1 mm or more preferably have an average magnetic domain width of 500 µm or less. Alternatively, the regions, of the magnetic domain control process lines, in which the magnetic domain refining process lines are absent and that include two or more magnetic walls preferably have an average magnetic domain width of 500 µm or less.

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