| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for subdividing a magnetic domain width by which the effect of strain region does not dissipate even after strain-removal annealing. <P>SOLUTION: A steel sheet after decarburize-annealing is subjected to a finish-annealing by forming a liner strain-giving range in the direction crossing with a cold-rolling direction, and further giving the temperature gradient in the rolling right-angle direction. According to give the temperature gradient to a steel strip coil at the time of reaching to the starting temperature of a secondary recrystallization, the secondary recrystallized grains are grown along the strain-giving region crossed with the rolling direction, and thus the subdividing effect, that the magnetic domain does not dissipate even after performing the strain-removal annealing, is obtained. <P>COPYRIGHT: (C)2011,JPO&INPIT |
