GRAIN-ORIENTED ELECTRICAL STEEL PLATE

摘要

In accordance with the present invention, it is possible to obtain a grain-oriented electrical steel sheet producing reduced noise when worked into a transformer, by setting length d of each plastic strain region in the widthwise direction of the steel sheet to 0.05 mm or more and 0.4 mm or less, and a ratio (£d/£w) of a total ˆ‘d of the length d to a total ˆ‘w of application interval w of each of the above plastic strain regions to 0.2 or more and 0.6 or less.