| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonoriented electrical steel sheet for a high frequency excited iron core which has excellent iron loss properties, and in which iron loss properties after stress relieving annealing are equal in the circumferential direction of the blanked iron core. <P>SOLUTION: The nonoriented electrical steel sheet for high frequency excitation is characterized in that, after a slab obtained by blanking a steel sheet is subjected to stress relieving annealing, the maximum value, maxW, and the minimum value, minW, of the core loss W measured along the rolling direction of the steel sheet and a plurality of directions making the prescribed angles with the rolling direction satisfy inequality (1), 1<maxW/minW≤1.20. <P>COPYRIGHT: (C)2011,JPO&INPIT |
