熱間圧延鋼帯の蛇行制御方法、蛇行制御装置及び熱間圧延設備

Japanese Patent JP7314921

B2

To provide a meandering control method for a hot rolled steel strip, a meandering control device and hot rolling equipment that are able to execute appropriate meandering control by increasing an amount of control so that a meandering control target value in "sensor type meandering control" is an appropriate amount of meander.SOLUTION: A meandering control method for a hot-rolled steel strip includes a meander amount measurement step (Step S1) and a leveling control calculation step (Step S2). In the leveling control calculation step (Step S2), a roll opening difference Si between an operation side and a drive side in a rolling mill Fi to be controlled is calculated using the formula (1): Si=αAC(any one of δ-δi-2, δi-3, ..., δ1)+Si-1, in which a meandering control target value is set as an amount of meander when a trailing end 10a of a steel strip 10 leaves any one of rolling mills Fi-2, Fi-3, ..., F1, which is before (i-2)th rolling mill, in a control section A in which the trailing end 10a of the traveling steel strip 10 leaves a meander amount measurement device 5 after leaving a rolling mill Fi-1.SELECTED DRAWING: Figure 2

Kentaro Komiya
Takashi Kirino

JP2020209974A

July 26, 2023

December 18, 2020

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JFE Steel Corporation

B21B37/68; B21B37/00; B21B37/58; B21B38/08

JP6801833B2
JP61017318A
JP7144211A
JP2013212523A
JP2020131196A
JP2015071181A

WO2021014811A1

田中 秀▲てつ▼
Hajime Hirose
Toru Miyasaka
Tetsuya Mori

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