EQUIPMENT FOR CUTTING STEEL STRIPS, COLD ROLLING EQUIPMENT, METHOD FOR CUTTING STEEL STRIPS, AND METHOD FOR PRODUCING STEEL STRIPS

WIPO Patent Application WO/2024/018700

A1

Provided are equipment for cutting steel strips, cold rolling equipment, a method for cutting steel strips, and a method for producing steel strips that make it possible to stably cut joined sections of continuous steel strips and remove defective sections of steel strips. The equipment for cutting steel strips (1) comprises; a cutting device (4) that performs laser cutting of a joined section (2) detected by a joined section detection device (5) and in which the rear end of a leading steel strip and the leading end of a following steel strip are joined, and laser cutting of the vicinity of a defective section of a steel strip detected by a defect detection device (8); and a control device (9) that acquires detection signals from the joined section detection device and the defect detection device and causes the cutting device to operate on the basis of the detection signals. The control device has a plurality of modes including a first cutting mode in which the vicinity of a joined section is subjected to laser cutting and a second cutting mode in which the vicinity of a defective section is subjected to laser cutting. The control device causes the cutting device to operate in one cutting mode among the plurality of modes.

JPH09323101	HOT ROLLING METHOD
JPH06198308	METHOD FOR JOINING BILLET IN HOT ROLLING

FUKUNAGA TAKAYUKI (JP)
HARAZONO MANABU (JP)

PCT/JP2023/014430

January 25, 2024

April 07, 2023

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JFE STEEL CORP (JP)

B21B15/00; B21B1/22; B21B38/00

JPS61165204A	1986-07-25
JP2012508113A	2012-04-05
JPS6264487A	1987-03-23
JP2017080803A	2017-05-18
JP2017080806A	2017-05-18
JPS635803A	1988-01-11

SUGIMURA Kenji (JP)

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