JPS5744409A - Sheet breadth controller for hot rolling mill - Google Patents

Sheet breadth controller for hot rolling mill

Info

Publication number
JPS5744409A
JPS5744409A JP55121354A JP12135480A JPS5744409A JP S5744409 A JPS5744409 A JP S5744409A JP 55121354 A JP55121354 A JP 55121354A JP 12135480 A JP12135480 A JP 12135480A JP S5744409 A JPS5744409 A JP S5744409A
Authority
JP
Japan
Prior art keywords
breadth
deviation
controller
looper
outputs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55121354A
Other languages
Japanese (ja)
Other versions
JPH0144403B2 (en
Inventor
Yoshikazu Kodera
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55121354A priority Critical patent/JPS5744409A/en
Publication of JPS5744409A publication Critical patent/JPS5744409A/en
Publication of JPH0144403B2 publication Critical patent/JPH0144403B2/ja
Granted legal-status Critical Current

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Landscapes

  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE: To control the sheet breadth while the looper angle and the run-out side sheet thickness are held constant, and to prevent the mutual interference, by simultaneously operating the looper tension, the roll's circumferential speed, and the reducing position, according to the deviation of actual sheet breadth from a preset sheet breadth.
CONSTITUTION: A rolled material 1 to be rolled by rolls (2-1)W(2-4), is given a tension controlled to a prescribed value σ at an looper angle θ of a looper 3. The detector 7, 8 detect the breadth deviation and thickness deviation, and output the deviation signals ΔB, ΔW. A thickness controller 9 outputs a screw position correcting signal ΔS*η against the thickness deviation Δη. A breadth controller 10 outputs a tension correcting signal Δσ* and a screw position correcting signal ΔS*σ according to the breadth deviation ΔW. Hereby, a screw's reducing position controller 6 corrects the screw positin according to the sum of said outputs ΔS*η and ΔS*σ. A correcting value Δσ* for the interstand tension is operated by an arithmetic device 11 which then outputs a roll speed correcting signal ΔV and a looper torque correcting signal Δq.
COPYRIGHT: (C)1982,JPO&Japio
JP55121354A 1980-09-01 1980-09-01 Sheet breadth controller for hot rolling mill Granted JPS5744409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55121354A JPS5744409A (en) 1980-09-01 1980-09-01 Sheet breadth controller for hot rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55121354A JPS5744409A (en) 1980-09-01 1980-09-01 Sheet breadth controller for hot rolling mill

Publications (2)

Publication Number Publication Date
JPS5744409A true JPS5744409A (en) 1982-03-12
JPH0144403B2 JPH0144403B2 (en) 1989-09-27

Family

ID=14809192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55121354A Granted JPS5744409A (en) 1980-09-01 1980-09-01 Sheet breadth controller for hot rolling mill

Country Status (1)

Country Link
JP (1) JPS5744409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58199614A (en) * 1982-05-18 1983-11-21 Kobe Steel Ltd Controlling method of sheet thickness and width in hot strip mill
JPS6368207A (en) * 1986-09-08 1988-03-28 Kobe Steel Ltd Sheet width control method for tandem rolling

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS555171A (en) * 1978-06-27 1980-01-16 Sumitomo Metal Ind Ltd Plate width control method of rolling materials in continuous hot rolling equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS555171A (en) * 1978-06-27 1980-01-16 Sumitomo Metal Ind Ltd Plate width control method of rolling materials in continuous hot rolling equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58199614A (en) * 1982-05-18 1983-11-21 Kobe Steel Ltd Controlling method of sheet thickness and width in hot strip mill
JPH0237245B2 (en) * 1982-05-18 1990-08-23 Kobe Steel Ltd
JPS6368207A (en) * 1986-09-08 1988-03-28 Kobe Steel Ltd Sheet width control method for tandem rolling
JPH0585246B2 (en) * 1986-09-08 1993-12-06 Kobe Steel Ltd

Also Published As

Publication number Publication date
JPH0144403B2 (en) 1989-09-27

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