| abstract |
The present invention provides a method for producing a grain-oriented electrical steel sheet capable of achieving both good iron loss and high productivity. In the groove formation for magnetic domain refinement, a resist containing a photosensitive resin is applied, exposed and developed to form a linear exposed portion of the steel base, and in the subsequent electrolytic etching, the When the current of the electrode is set to I and the area of the exposed part of the steel base on the surface of the steel sheet having the same area as the area of the electrode is set to be S, the current density ρ=I/S to the exposed part of the steel base is 7.5 A/cm 2 or more. |