| 摘要 |
<p>PURPOSE:To improve the accuracy of the sheet thickness by detecting the sheet thickness and the variation of material temperature during rolling between the adjacent two stands, and controlling the sheet thickness with the timing to reach to the down stream side stand. CONSTITUTION:On the sheet thickness control for the hot rolling mills arranged continuously, the variation of the sheet thickness and the material temperature during rolling is instantly detected with the sheet thickness and the temp. detector arranged between the adjacent two stands i, i + 1, and the variation of outlet side sheet thickness is searched at the timing to reach the down stream side stand i + 1. The accuracy of the sheet thickness can be improved by operating the circumferential speed of the roll of upper stream side stand with this variation of sheet thickness, so changing the tension between stands and controlling the sheet thickness at the timing of the detected variation of sheet thickness and the material temperature to reach to the down stream side stand.</p> |
