| 摘要 |
<p>PURPOSE:To obtain a simple, practical, and easy adjustable control system by deciding a gain in shape feedback control as a function of a deviation in work roll diameter, sheet width, position of an intermediate roll. CONSTITUTION:A shape of a rolled stock 5 passed through a work roll 1 of the final stand is detected by a shape detector 6 of magnetic correlation system, etc., and the shape data is inputted to a shape feedback controller 7. The controller 7 converts a shape measured value into a parameter and decides a gain by a formula expressing the gain as a function of a deviation in work roll diameter, sheet width, and shift position of an intermediate roll. Then, required control amounts such as thermal crown, roll bender, etc., are decided by substituting both a difference between a measured shape parameter and a target shape parameter and a gain into the formula to perform calculation. The thermal crown is further converted into a pattern of a roll coolant and all the total operation amounts at an operation end 8 and decided.</p> |
