TH2201005451A - Methods for shape control in rolling mills and devices for shape control in rolling mills - Google Patents

Abstract

DEPCT66 A method for controlling the shape of a rolling mill according to the present invention, including: a measurement step of measuring the shape of a steel plate on the discharge side of the rolling mill; and a control step of controlling the rolling mill such that the shape of the steel plate falls within an allowable range based on the shape of the steel plate being measured at the measurement step, wherein the measurement step includes a step of setting a control gain less than the control gain for a target rolling steel plate width equal to or less than a predetermined value when the target rolling steel plate width is greater than the predetermined value. -----------------------------------------------------------

Claims (2)

1. DEPCT66 1. Method for controlling the shape of a rolling mill. The method comprises: a measurement procedure of measuring the shape of a steel plate on the delivery side of the rolling mill, and a control procedure of controlling the rolling mill in such a way that the shape of the steel plate falls within the allowable range on the basis of the shape of the steel plate being measured at the measurement procedure, wherein the measurement procedure includes a procedure of setting a control gain less than the control gain for the width of the target steel plate for rolling equal to or less than a predetermined value when the width of the target steel plate for rolling is greater than the predetermined value. 2. A device for controlling the shape of a rolling mill comprising: a measuring unit constructed to measure the shape of the steel plate on the discharge side of the rolling mill, and a control unit constructed to control the rolling mill in such a way that the shape of the steel plate falls within the allowable range on the basis of the shape of the steel plate measured by the measuring unit, wherein the control unit sets a control gain less than the control gain for the width of the target steel plate for rolling equal to or less than a predetermined value when the target steel plate for rolling is wider than the predetermined value.