| 摘要 |
<p>A non-oriented electromagnetic steel sheet having random cubes and very good magnetic characteristics in the full circumferential direction; and a method of manufacturing such steel sheets. A non-oriented electromagnetic steel sheet 0.20-1.20 mm in thickness having a {100} <Ovw> texture after the completion of a primary recrystallization operation, and random cubes in which the strength of a {100} surface, which is parallel to a rolled surface, with respect to the random cubes is two times as high as that of a conventional steel sheet of this kind; and a method of manufacturing non-oriented electromagnetic steel sheets, having the steps of solidifying molten steel, which contains mainly Si </= 4.0 % and Al </= 2.0 %, by the surface of a cooling body which is renewed as it is moved, and setting a cold rolling rate to not lower than 5 % and lower than 40 % in an acid washing step, a cold rolling step and a finish-annealing step. By this method, random cubes {100} <Ovw> which are practically ideal are formed, and a product having very good magnetic characteristics in the full circumferential direction is easily obtained.</p> |
