冷間タンデム圧延設備及び冷間タンデム圧延方法

Japanese Patent JP7269484

B2

To provide cold tandem rolling equipment and a cold tandem rolling method in which plate rupture occurrence is predicted at a stage before the plate rupture occurrence in implementing cold tandem rolling on a coil with a large unevenness in deformation resistance distribution, like a self-annealing coil, and in which an emergency stop of the rolling can be made, in order to minimize degradation in productivity accompanying a plate rupture emergency stop.SOLUTION: In the cold tandem rolling equipment, a breakage part detector is disposed for detecting generation of broken parts not yet ruptured on a strip to be rolled, at least on an outlet side of a first rolling mill stand among multiple rolling mill stands, and an emergency stop device is provided for emergency stopping of the rolling based on a detection result from the breakage part detector. Further, in a cold tandem rolling method, the emergency stop device is operated to stop the rolling when a broken part is detected by the breakage part detector, in implementing cold rolling on a strip using the cold tandem rolling equipment.SELECTED DRAWING: Figure 1

JPH0417920	METHOD FOR MEASURING ROLL LIFE OF ROLLING MILL
JP2834989	[Title of Invention] Looper control device
WO/2021/197816	ROLL STAND

Toshiyuki Shiraishi
Akashi Toru
Akira Ohno
Atsushi Shibayama
Yoshihiro Arita

JP2019149100A

May 09, 2023

August 15, 2019

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Nippon Steel Corporation

B21B38/00; B21B1/24; B21C51/00

JP5232045A
JP1320455A
JP2013205381A
JP2010064122A
JP2015139810A

KR1020130070181A

Sumio Tanai
Mitsuo Teramoto
Tomomasa Katsumata
Hiroshi Yamaguchi

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