METHOD FOR PRODUCING ORIENTED ELECTROMAGNETIC STEEL SHEET

摘要

Provided is a method for producing an oriented electromagnetic steel sheet with which it is possible to achieve both favorable iron loss and high productivity. In groove formation for magnetic domain refinement, a resist comprising a photosensitive resin is applied, and exposed and developed to thereby form a linear-shaped ferrite exposed section. In electrolytic etching that is subsequently performed, a current density ρ=I/S with respect to the exposed base metal section is 7.5 A/cm2 or higher, where I is a current supplied to an electrode and S is the surface area of the exposed base metal section in a steel sheet surface of the same surface area as the electrode.