| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonoriented electrical steel sheet in which circumferential magnetic properties inside the steel face can be improved. <P>SOLUTION: The electrical steel sheet is produced in such a manner that alloy components to be added and (Si, Al and Mn), the corelation in the contents of the alloy elements, impurity elements (C, S, N, Ti, V, Zr, Nb and As), the crystal grain size after hot rolled sheet annealing, and the draft in cold rolling are controlled for improving the circumferential magnetic properties inside the sheet face. Thus, the ä100} texture after finish annealing is developed, and, isotropically excellent magnetic properties inside the steel sheet face can be obtained when the steel sheet is used as an iron core material, particularly, in the case of an iron core of a rotating machine. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
