| 摘要 |
<p>PURPOSE:To prevent the deviation of web center, meandering of flange or the like by controlling the screw-down position of roll, roll distance, amount of thrust, or the position and interval of manipulators based on the measured value of the dimensional shape of a rolled stock. CONSTITUTION:The shape of an intermediate product at the time of manufacturing shapes having flanges, especially, a wide flange shape is on-line controlled. A dimensional shape measuring device 9 is provided on the downstream side of a break down mill 3 and measured dimension signals in respective parts of the rolled stock are inputted to a dimensional shape arithmetic and control unit 10. Arithmetic processing is executed with the dimensional shape arithmetic and control unit 10 and the screw-down position, roll distance, amount of thrust of the caliber roll 6 of the break down mill 3 and the position and interval of the manipulators 7, 8 are controlled. Further, the cross-sectional areas Af1, Af2, Af3, Af4 of flanges and cross-sectional area Aw of web are calculated based on these measured data and, by executing comparison operation of them, a control object are con trolled in the working direction.</p> |
