| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for working a grain-oriented magnetic steel sheet using a method by which the presence or the absence of a magnetic domain refining treatment and the presence or the absence of a core-loss reduction effect caused by the magnetic domain refining treatment, can be discriminated in a simple and easy manner, and to provide a grain-oriented magnetic steel sheet suitable to the working method.SOLUTION: A method for working a grain-oriented magnetic steel sheet is characterized in that at any stage of before, during and after working the grain-oriented magnetic steel sheet, the presence or the absence of the magnetic domain refinement is discriminated for at least a portion of the grain-oriented magnetic steel sheet by for example, a magnetic method using a magnetic sheet in which a magnetic fluid is held by films, and an appropriation destination afterward or a following process is determined. |
