JPS5519409A - Plate thickness and plate breadth control method in rolling mill - Google Patents

Plate thickness and plate breadth control method in rolling mill

Info

Publication number
JPS5519409A
JPS5519409A JP9090378A JP9090378A JPS5519409A JP S5519409 A JPS5519409 A JP S5519409A JP 9090378 A JP9090378 A JP 9090378A JP 9090378 A JP9090378 A JP 9090378A JP S5519409 A JPS5519409 A JP S5519409A
Authority
JP
Japan
Prior art keywords
plate
rolling mill
plate thickness
breadth
disturbances
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.)
Pending
Application number
JP9090378A
Other languages
Japanese (ja)
Inventor
Yoshitaka Ikeda
Ryuichi Osono
Yasunobu Hayama
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP9090378A priority Critical patent/JPS5519409A/en
Publication of JPS5519409A publication Critical patent/JPS5519409A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the processing precision, by detecting the disturbance of the material being rolled at the upstream side of the stand to control the tandem rolling mill, and controlling so as to eliminate effects of disturbance on the exit side.
CONSTITUTION: A work roll driving device 12 and a screw-down device 21 are controlled so that the deviation between the target value t°n-1 and detected value tn-1 by detector 6 of tension of the material being rolled 1 between adjacent stands n-1 and n of a rolling mill and the deviation between the target value y°n and detected value yn by position detector 16 may be respectively reduced to zero quickly. Variations of these four values from each reference value are supposed to be tn-1, Δt°n-1, Δyn, Δy°n, and variations of plate thickness, plate breadth and plate temperature at the exit side of stand n to be Δhn, Δwn, ΔTn, and when disturbances Δhn-2, Δwn-2, ΔTn-2 are measured, this system is expressed by formula 3. When the transmission function matrix F(S) is selected so that G(S)F(S)+Gd(S) may be zero matrix, the effects of disturbances on external forces Δhn, Δwn may be completely eliminated. In addition, mutual interference between plate thickness and plate breadth does not occur.
COPYRIGHT: (C)1980,JPO&Japio
JP9090378A 1978-07-27 1978-07-27 Plate thickness and plate breadth control method in rolling mill Pending JPS5519409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9090378A JPS5519409A (en) 1978-07-27 1978-07-27 Plate thickness and plate breadth control method in rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9090378A JPS5519409A (en) 1978-07-27 1978-07-27 Plate thickness and plate breadth control method in rolling mill

Publications (1)

Publication Number Publication Date
JPS5519409A true JPS5519409A (en) 1980-02-12

Family

ID=14011353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9090378A Pending JPS5519409A (en) 1978-07-27 1978-07-27 Plate thickness and plate breadth control method in rolling mill

Country Status (1)

Country Link
JP (1) JPS5519409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586717A (en) * 1981-07-03 1983-01-14 Kawasaki Steel Corp Method and device for feed forward control of thickness and width of band-shaped rolled steel
JPS58199614A (en) * 1982-05-18 1983-11-21 Kobe Steel Ltd Controlling method of sheet thickness and width in hot strip mill

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586717A (en) * 1981-07-03 1983-01-14 Kawasaki Steel Corp Method and device for feed forward control of thickness and width of band-shaped rolled steel
JPH0217246B2 (en) * 1981-07-03 1990-04-19 Kawasaki Steel Co
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

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