| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a temperature distribution in the width direction of a crude bar uniform, and to obtain the steel strip excellent in shape and precision in the width direction by heating the crude bar after moving a heating device so that the temperature distribution in the width direction of the crude bar becomes symmetrical to the center line of the crude bar. SOLUTION: The rolled crude bar 2 is moved by a table roll while its movement in the width direction is restricted by side guides 3a, 3b, and is continuously heated by an induction heating device 6. At that time, by thermometers 4a and 4b installed on the inlet side and the outlet side of the induction heating device 6, the temperature distribution in the width direction of the surface of the crude bar 2 are measured. When a deviation exists in the temperature distribution in the width direction of the surface of the measured crude bar 2, the induction heating device 6 is moved by a drive mechanism, and a more heating value is applied on the low temperature side of the crude bar 2. Consequently, the deviation in the temperature distribution in the width direction of the crude bar 2 is dissolved.</p> |
