EP0349885A3 - Method for cold-rolling sheets and bands - Google Patents

Method for cold-rolling sheets and bands Download PDF

Info

Publication number
EP0349885A3
EP0349885A3 EP19890111664 EP89111664A EP0349885A3 EP 0349885 A3 EP0349885 A3 EP 0349885A3 EP 19890111664 EP19890111664 EP 19890111664 EP 89111664 A EP89111664 A EP 89111664A EP 0349885 A3 EP0349885 A3 EP 0349885A3
Authority
EP
European Patent Office
Prior art keywords
actuators
rolling
flatness
strips
sheets
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
EP19890111664
Other languages
German (de)
French (fr)
Other versions
EP0349885B1 (en
EP0349885A2 (en
Inventor
Bernd Dr.-Ing. Berger
Gert Dipl.-Ing. Mücke
Eberhard Dr.-Ing. Neuschütz
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.)
BFI VDEH Institut fuer Angewandte Forschung GmbH
Original Assignee
BFI VDEH Institut fuer Angewandte Forschung GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6358277&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0349885(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BFI VDEH Institut fuer Angewandte Forschung GmbH filed Critical BFI VDEH Institut fuer Angewandte Forschung GmbH
Publication of EP0349885A2 publication Critical patent/EP0349885A2/en
Publication of EP0349885A3 publication Critical patent/EP0349885A3/en
Application granted granted Critical
Publication of EP0349885B1 publication Critical patent/EP0349885B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls

Abstract

Die Erfindung bezieht sich auf ein Verfahren zum Kaltwalzen von Blechen und Bändern, wobei Meßwerte, welche die Planheit kenn­ zeichnen, insbesondere die Zugspannungsverteilung, auf der Aus­ trittsseite eines Walzgerüstes gebildet und in Abhängigkeit hiervon Stellglieder des Walzwerkes betätigt werden, die wenigstens einem Regelkreis für die Planheit der gewalzten Bleche und Bänder ange­ hören. Hierbei werden erfindungsgemäß Fehlregelungen und Störungen des Walzprozesses auf Grund des unterschiedlichen Zeitverhaltens der einzelnen Stellglieder des Walzwerkes dadurch vermieden, daß die Stellglieder des oder der Regelkreise mit derart einander ange­ passten Geschwindigkeiten verstellt werden, daß wenigstens während eines Teils der Verweilzeit das Verhältnis der Stellwege der be­ teiligten Stellglieder mit der Maßgabe konstant bleiben, daß alle Stellglieder ihren Sollwert gleichzeitig erreichen. The invention relates to a method for cold rolling Sheets and strips, whereby measured values that know the flatness draw, especially the tension distribution on the Aus formed on the step side of a roll stand and depending on it Actuators of the rolling mill are operated, at least one Control circuit for the flatness of the rolled sheets and strips Listen. According to the invention, incorrect regulations and faults are hereby of the rolling process due to the different time behavior of the individual actuators of the rolling mill avoided in that the actuators of the control loop or loops with each other adjusted speeds that are adjusted at least during part of the dwell time the ratio of the travel of the be divided actuators remain constant with the proviso that all Actuators reach their setpoint at the same time.

EP89111664A 1988-07-08 1989-06-27 Method for cold-rolling sheets and bands Expired - Lifetime EP0349885B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3823202A DE3823202A1 (en) 1988-07-08 1988-07-08 METHOD FOR COLD ROLLING SHEETS AND STRIPS
DE3823202 1988-07-08

Publications (3)

Publication Number Publication Date
EP0349885A2 EP0349885A2 (en) 1990-01-10
EP0349885A3 true EP0349885A3 (en) 1991-11-13
EP0349885B1 EP0349885B1 (en) 1995-01-11

Family

ID=6358277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111664A Expired - Lifetime EP0349885B1 (en) 1988-07-08 1989-06-27 Method for cold-rolling sheets and bands

Country Status (5)

Country Link
US (1) US4981028A (en)
EP (1) EP0349885B1 (en)
JP (1) JP2776568B2 (en)
KR (1) KR970001548B1 (en)
DE (2) DE3823202A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5233852A (en) * 1992-04-15 1993-08-10 Aluminum Company Of America Mill actuator reference adaptation for speed changes
DE4402136C2 (en) * 1994-01-26 1997-12-18 Telefunken Microelectron Device for determining the operating parameters of vehicle tires
DE102004032634A1 (en) * 2004-07-06 2006-02-16 Sms Demag Ag Method and device for measuring and controlling the flatness and / or the strip tensions of a stainless steel strip or a stainless steel foil during cold rolling in a multi-roll stand, in particular in a 20-roll Sendizimir rolling mill
DE102008015828A1 (en) * 2007-09-26 2009-04-02 Sms Demag Ag Rolling device and method for its operation
CN115026136B (en) * 2022-08-11 2022-10-25 东北大学 Method for predicting plate shape of endless rolling wedge-shaped transition process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714805A (en) * 1971-11-11 1973-02-06 Wean United Inc Control system and method for concurrent automatic gage and crown control of a rolling mill
DE3517405A1 (en) * 1984-05-18 1985-11-21 Osakeyhtiö Wärtsilä Ab, Helsinki DEVICE FOR CONTROLLING THE BENDING COMPENSATION OF A SATIN PRESS
JPS62214814A (en) * 1986-03-17 1987-09-21 Kobe Steel Ltd Nonlinear control method for plate shape in multistage rolling mill
US4726213A (en) * 1984-12-03 1988-02-23 Hitachi, Ltd. Method of controlling a shape of a rolled sheet material
JPS6356310A (en) * 1986-08-25 1988-03-10 Hitachi Zosen Corp Controlling method for sheet rolling mill

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694636A (en) * 1970-03-20 1972-09-26 Westinghouse Electric Corp Digital computer process control with operational learning procedure
SE7613004L (en) * 1976-11-22 1978-05-23 Asea Ab SIGNAL CONVERSION.
DE3240602A1 (en) * 1982-11-03 1984-06-14 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH, 4000 Düsseldorf METHOD FOR REGULATING THE TENSION DISTRIBUTION IN COLD ROLLING OF TAPES
DE3430034A1 (en) * 1984-08-16 1986-02-27 Mannesmann AG, 4000 Düsseldorf PLANNING REGULATION ON ROLLING MILLS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714805A (en) * 1971-11-11 1973-02-06 Wean United Inc Control system and method for concurrent automatic gage and crown control of a rolling mill
DE3517405A1 (en) * 1984-05-18 1985-11-21 Osakeyhtiö Wärtsilä Ab, Helsinki DEVICE FOR CONTROLLING THE BENDING COMPENSATION OF A SATIN PRESS
US4726213A (en) * 1984-12-03 1988-02-23 Hitachi, Ltd. Method of controlling a shape of a rolled sheet material
JPS62214814A (en) * 1986-03-17 1987-09-21 Kobe Steel Ltd Nonlinear control method for plate shape in multistage rolling mill
JPS6356310A (en) * 1986-08-25 1988-03-10 Hitachi Zosen Corp Controlling method for sheet rolling mill

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PROCEEDINGS OF THE AMERICAN CONTROL CONFERENCE, BOSTON, 19.-21. Juni 1985, Vol. 3, 21. Juni 1985, Seiten 1359-1364, IEEE, NEW YORK; US; J.V. RINGWOOD: "LEAST SQUARES IDENTIFICATION WITH APPLICATION TO SHAPE CONTROL IN A SENDZIMIR COLD ROLLING STEEL MILL" *

Also Published As

Publication number Publication date
JPH02133110A (en) 1990-05-22
DE58908868D1 (en) 1995-02-23
DE3823202A1 (en) 1990-01-11
US4981028A (en) 1991-01-01
JP2776568B2 (en) 1998-07-16
EP0349885B1 (en) 1995-01-11
KR970001548B1 (en) 1997-02-11
KR900001425A (en) 1990-02-27
EP0349885A2 (en) 1990-01-10

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