METHOD FOR CONTROLLING FORM IN ROLLING METAL PLATE

摘要

PURPOSE:To improve the yield by estimating a form distribution in normal temperatures in accordance with detected values of temperatures and the form distribution in the direction of the plate width on the outlet side and determining a form operation amount from the form distribution and a model expression. CONSTITUTION:A temperature distribution in the direction of the plate width of a rolling metal plate S is detected by a temperature detecting equipment 25 on the outlet side of a rolling mill 11. Further, the form distribution in the plate width direction is detected by a form detecting equipment 35. The form distribution in the plate width direction at the normal temperatures is estimated by a controlling arithmetic unit 31 in accordance with detected values of these temperature distribution and form distribution. The form operation amount is determined and controlled by using a controller 37 from an estimated form distribution and the model expression. In this way, an excellent plate form can be obtained.