JPS5668518A - Method and apparatus of controlling shape in rolling mill - Google Patents

Method and apparatus of controlling shape in rolling mill

Info

Publication number
JPS5668518A
JPS5668518A JP14336179A JP14336179A JPS5668518A JP S5668518 A JPS5668518 A JP S5668518A JP 14336179 A JP14336179 A JP 14336179A JP 14336179 A JP14336179 A JP 14336179A JP S5668518 A JPS5668518 A JP S5668518A
Authority
JP
Japan
Prior art keywords
asymmetrical
rolling mill
asymmetrical shapes
correction
calculator
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
JP14336179A
Other versions
JPS6227883B2 (en
Inventor
Shigeru Shida
Sukefumi Tsumura
Kenichi Yasuda
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP54143361A priority Critical patent/JPS6227883B2/ja
Publication of JPS5668518A publication Critical patent/JPS5668518A/en
Publication of JPS6227883B2 publication Critical patent/JPS6227883B2/ja
Application status is Expired legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/42Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls

Abstract

PURPOSE:To make possible highly accurate and rapid shape controlling by forecasting the asymmetrical shapes produced by asymmetrical factors such as temp. differences of the material to be rolled on the inlet side of a rolling mill having a pair of axially movable rolls and performing the correction of asymmetrical shapes. CONSTITUTION:In the rolling mill having at least a pair of axially movable rolls 2, 3, the apparatus is constituted of the asymmetrical factor detectors, such as thickness gauges 17, 18', material position detectors 14, 15, thermometers 20, 21, etc. provided on the inlet side, the calculators 23, 25 which extract asymmetrical components from the asymmetrical shapes produced by the above-described factors and create vectors, the calculator 26 which selects an optimum correction device out of the right and left bending force differences for correcting said asymmetrical shapes, a calculator 35 which calculates the optimum correction amount of the correcting devices, and a screw-down command device 31 which controls set value, whereby the correction of the asymmetrical shapes is accomplished. These eliminate the existence of any shape insufficiency owing to time delay and make possible rapid shape controlling.
JP54143361A 1979-11-07 1979-11-07 Expired JPS6227883B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54143361A JPS6227883B2 (en) 1979-11-07 1979-11-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54143361A JPS6227883B2 (en) 1979-11-07 1979-11-07

Publications (2)

Publication Number Publication Date
JPS5668518A true JPS5668518A (en) 1981-06-09
JPS6227883B2 JPS6227883B2 (en) 1987-06-17

Family

ID=15336990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54143361A Expired JPS6227883B2 (en) 1979-11-07 1979-11-07

Country Status (1)

Country Link
JP (1) JPS6227883B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158901A (en) * 1984-01-31 1985-08-20 Mitsubishi Heavy Ind Ltd Rolling method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5055565A (en) * 1973-09-14 1975-05-15
JPS51132156A (en) * 1975-05-14 1976-11-17 Hitachi Ltd Method and device for controlling shape in rolling mill
JPS5342165A (en) * 1976-09-29 1978-04-17 Hitachi Ltd Form controlling and device in rolling mill

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5055565A (en) * 1973-09-14 1975-05-15
JPS51132156A (en) * 1975-05-14 1976-11-17 Hitachi Ltd Method and device for controlling shape in rolling mill
JPS5342165A (en) * 1976-09-29 1978-04-17 Hitachi Ltd Form controlling and device in rolling mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158901A (en) * 1984-01-31 1985-08-20 Mitsubishi Heavy Ind Ltd Rolling method
JPH0436761B2 (en) * 1984-01-31 1992-06-17 Mitsubishi Heavy Ind Ltd

Also Published As

Publication number Publication date
JPS6227883B2 (en) 1987-06-17

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