| 摘要 |
<p>PURPOSE:To obtain a target thickness and width by determining the deviation in the thickness and width of a material to be rolled under rolling as functions of rolling load and tension correction quantity by utilizing the fact that the thickness and width are the functions of rolling load and the tension of the material to be rolled, and controlling the rolling load and tension in accoradance with these thereby correcting the deviations in the thickness and the tension. CONSTITUTION:Detecting means 10, 11 for deviations of thickness and width which determine the respective deviations of the thickness and width of a material 3 to be rolled on the outlet side of a stand 2, and an operator 12 which operates target tension and rolling load correction quantity in accordance with these are provided. Further, a detecting means 13 for the tension of the material 3 on the inlet side of the stand 2, an adder and subtractor 14 which calculates a tension correction quantity by adding a target tension correction quantity of the operator 12 to the target tension value and subtracting the actually measured tension value from the means 13 therefrom, a tension-rolling speed converter 15 which converts the tension correctin quantity to a rolling speed correction quantity and outputs the same to a rolling speed control system 7, and a rolling load converter 16 which converts the rolling load correction quantity to a screw down correction quantity and outputs the same to a rolling reduction control system 6, are provided.</p> |
