Method of producing grain-oriented electrical steel sheet
AssigneeJfe Steel Corporation
InventorsRieko IZUMI, Toshito TAKAMIYA, Akio FUJITA, Toru NAKASHIMA, Norihisa OKADA
Life of this patent
Estimating the term…
Loading patent…
AssigneeJfe Steel Corporation
InventorsRieko IZUMI, Toshito TAKAMIYA, Akio FUJITA, Toru NAKASHIMA, Norihisa OKADA
Estimating the term…
Provided is a way to inhibit propagation of edge cracks. A method of producing a grain-oriented electrical steel sheet including, before final annealing, local strain with an indentation amount from the steel sheet surface of 5 μm to 30 μm is applied to a linear region that, when coiled and the coil is charged into a final annealing furnace, is separated from the axial end of the coil that comes into contact with a coil receiving base of the final annealing furnace by 5 mm or more and 20 mm or less in the axial direction of the coil and that extends continuously or discontinuously in a direction on that intersects the axial direction, in order to produce crystal grains having a misorientation angle of 15° or more from Goss orientation grains along 50% or more of the total length of the linear region.
A method of producing a grain-oriented electrical steel sheet, the method comprising:
Dependencies are inferred from the claim text.