JPS5855111A - Controller for plate shape in multistage cluster rolling mill - Google Patents

Controller for plate shape in multistage cluster rolling mill

Info

Publication number
JPS5855111A
JPS5855111A JP56155392A JP15539281A JPS5855111A JP S5855111 A JPS5855111 A JP S5855111A JP 56155392 A JP56155392 A JP 56155392A JP 15539281 A JP15539281 A JP 15539281A JP S5855111 A JPS5855111 A JP S5855111A
Authority
JP
Japan
Prior art keywords
rolling
rolls
values
crowns
rates
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
JP56155392A
Other languages
Japanese (ja)
Inventor
Sadamu Terado
Yasunobu Hayama
Kazuyoshi Hashimoto
Muneo Moriya
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
Nippon Steel Corp
Original Assignee
Mitsubishi Heavy Industries Ltd
Nippon Steel 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 Heavy Industries Ltd, Nippon Steel Corp filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP56155392A priority Critical patent/JPS5855111A/en
Publication of JPS5855111A publication Critical patent/JPS5855111A/en
Pending legal-status Critical Current

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
    • B21B37/30Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls

Abstract

PURPOSE:To control plate shapes in multistage cluster rolling mills over a wide range by providing circuits for controlling roll crowns and roll bending forces by starting rolling at initial set values and operating correction values from the differences from current values under rolling. CONSTITUTION:In multistage cluster rolling mills, rolling conditions 14 are inputted in a preset arithmetic device 13, and respective initial set values of optimum crowns of backup rolls, and the roll bending forces of work rolls and intermediate rolls are operated and inputted. Rolling is started, and the correction rates for the crowns of the backup rolls and the correction rates for bending of the work rolls and the intermediate rolls for the purpose of minimizing the defects in the plate shapes produced by the differences between the current values of the rolling load detected by load cells 9 and the initially set reference values are operated with a feedback arithmetic device 15, from which said rates are outputted. The rates are applied to controllers 10, 11, 12, by which the crowns and bending forces of the rolls are controlled over a wide range in accordance with the rolling conditions.
JP56155392A 1981-09-30 1981-09-30 Controller for plate shape in multistage cluster rolling mill Pending JPS5855111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56155392A JPS5855111A (en) 1981-09-30 1981-09-30 Controller for plate shape in multistage cluster rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56155392A JPS5855111A (en) 1981-09-30 1981-09-30 Controller for plate shape in multistage cluster rolling mill

Publications (1)

Publication Number Publication Date
JPS5855111A true JPS5855111A (en) 1983-04-01

Family

ID=15604944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56155392A Pending JPS5855111A (en) 1981-09-30 1981-09-30 Controller for plate shape in multistage cluster rolling mill

Country Status (1)

Country Link
JP (1) JPS5855111A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255710A (en) * 1985-05-10 1986-11-13 Mitsubishi Heavy Ind Ltd Shape control device for cluster rolling mill
FR2622484A1 (en) * 1987-10-29 1989-05-05 Frohling Gmbh Walzwerksmaschin MULTI-ROLLER ROLLER CAGE
WO1993004795A1 (en) * 1991-09-10 1993-03-18 Nippon Steel Corporation Plate rolling machine
US5692407A (en) * 1990-09-19 1997-12-02 Hitachi, Ltd. Shape control in a strip rolling mill of cluster type
JP2007040046A (en) * 2005-08-05 2007-02-15 Asahi Glass Matex Co Ltd Roof material
US8397468B2 (en) 2005-07-15 2013-03-19 BlueScope Steel North America Corporation Safety reinforced light transmitting panel assembly

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255710A (en) * 1985-05-10 1986-11-13 Mitsubishi Heavy Ind Ltd Shape control device for cluster rolling mill
FR2622484A1 (en) * 1987-10-29 1989-05-05 Frohling Gmbh Walzwerksmaschin MULTI-ROLLER ROLLER CAGE
US5692407A (en) * 1990-09-19 1997-12-02 Hitachi, Ltd. Shape control in a strip rolling mill of cluster type
WO1993004795A1 (en) * 1991-09-10 1993-03-18 Nippon Steel Corporation Plate rolling machine
US5609054A (en) * 1991-09-10 1997-03-11 Nippon Steel Corporation Rolling mill for flat products
US8397468B2 (en) 2005-07-15 2013-03-19 BlueScope Steel North America Corporation Safety reinforced light transmitting panel assembly
JP2007040046A (en) * 2005-08-05 2007-02-15 Asahi Glass Matex Co Ltd Roof material

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