| 摘要 |
Disclosed is a production method for an oriented electromagnetic steel plate, which uses as a raw material a steel slab having a predetermined component composition and which uses cold rolling two or more times. In said production method, heat processing for between 10 minutes and 480 hours at a temperature range of 500°C to 750°C performed before one of the cold rollings, except the last cold rolling, enables superior magnetic properties to be achieved, after secondary recrystallization and by the use of austenite - ferrite transformation, in the oriented electromagnetic steel plates produced by using cold rolling two or more times. |
