| 摘要 |
<p>PROBLEM TO BE SOLVED: To stably secure the temperature on the outlet side of finishing of a sheet bar by utilizing the capacity of a heating furnace at the maximum without insufficient heating of the sheet bar even in the case such as operation in which the soaking time in the heating furnace can not be taken sufficiently is performed. SOLUTION: The heating temperature of the sheet bar 1 is beforhand decided based on the speed pattern of finish rolling with a heating temperature deciding part 41. The heating temperature which is decided with the heating temperature deciding part 41 is corrected based on the temperature in the tip part of the sheet bar 1 which is measured with a thermometer 5 with a heating temperature correcting part 42. The heating temperature which is corrected with the heating temperature correcting part 42 based on the measured load with a load cell 7 is corrected and this corrected heating temperature is set to a sheet bar heater 2 with a heating temperature correcting part 43. The sheet bar 1 is heated based on the set heating temperature while tracking the advancing position of the sheet bar 1 with the sheet bar heater 2.</p> |
