ROLLING MILL MEANDERING SUPPRESSION METHOD

To provide a rolling mill meandering suppression method by which meandering of a rolled material can be suppressed more suitably.SOLUTION: A rolling mill meandering suppression method, which sets an inlet side tensile force of a tandem type rolling mill so as to suppress meandering of a rolled material which is rolled by the rolling mill, comprises: a process S3 in which a line load of the rolling mill is determined; a process S4 in which on the inlet side of the rolling mill, a distance from the rolling mill to a roll, which is located closest to the rolling mill and constrains a travelling direction of the rolled material, is determined; and a process S5 in which an inlet side tensile force of the rolling mill is set on the basis of the line load and the distance which have been determined in the process S3 and the process S4 respectively.SELECTED DRAWING: Figure 2 【課題】本発明は、圧延材の蛇行をより適切に抑制できる圧延機の蛇行抑制方法を提供する。【解決手段】本発明の圧延機の蛇行抑制方法は、タンデム型の圧延機によって圧延される圧延材の蛇行を抑制するように前記圧延機の入側張力を設定する圧延機の蛇行抑制方法であって、前記圧延機の線荷重を決定する工程Ｓ３と、前記圧延機の入側において、前記圧延機から、前記圧延機に最も近くに配置されるロールであって前記圧延材の進行方向を拘束する前記ロールまで、の距離を決定する工程Ｓ４と、工程Ｓ３および工程Ｓ４それぞれで決定した線荷重および距離に基づいて、前記圧延機の入側張力を設定する工程Ｓ５とを備える。【選択図】図２