EP0173045A1 - Commande de la planéité pour cages de cylindres à feuillards - Google Patents

Commande de la planéité pour cages de cylindres à feuillards Download PDF

Info

Publication number: EP0173045A1
Authority: EP; European Patent Office
Prior art keywords: strip; flatness; control; rolling force; rolling
Prior art date: 1984-08-16
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

EP85108724A

Other languages

German (de)

English (en)

Other versions

EP0173045B1 (fr

Inventor

Bernhard Dr.-Ing. Siemon

Heinz Dipl.-Ing. Teichert

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.)

Vodafone GmbH

Original Assignee

Mannesmann AG

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.)

1984-08-16

Filing date

1985-07-12

Publication date

1986-03-05

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6243109&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0173045(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1985-07-12 Application filed by Mannesmann AG filed Critical Mannesmann AG

1986-03-05 Publication of EP0173045A1 publication Critical patent/EP0173045A1/fr

1988-12-28 Application granted granted Critical

1988-12-28 Publication of EP0173045B1 publication Critical patent/EP0173045B1/fr

Status Expired legal-status Critical Current

Links

238000005096 rolling process Methods 0.000 title claims abstract description 41
238000004088 simulation Methods 0.000 claims abstract description 5
238000005259 measurement Methods 0.000 claims description 2
238000005452 bending Methods 0.000 abstract description 4
238000004364 calculation method Methods 0.000 abstract description 4
238000010586 diagram Methods 0.000 description 2
230000005489 elastic deformation Effects 0.000 description 2
238000000034 method Methods 0.000 description 2
230000006735 deficit Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000000007 visual effect Effects 0.000 description 1

Images

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
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/12—Rolling load or rolling pressure; roll force
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2273/00—Path parameters
- B21B2273/12—End of product

Definitions

the invention relates to a flatness control with measuring devices for determining the rolling force and rolling force change as well as adjusting devices for controlling flatness errors equipped strip rolling stands according to the specification of manually or automatically retrievable target values and the actual values determined by a measuring system and detecting the flatness.
the rolling speeds are increased to the operating speeds only after the strip has been rolled on or after the threading phase.
the change in the forming speed also leads to a change in the resistance to deformation, which must be taken into account because a changing rolling speed causes a change in the rolling force.
the thickness of the strip that is running out is changed if the thickness of the strip is not kept constant using the rolling force as a manipulated variable. Because the mere change in the rolling force does not take into account the changing elastic deformation of the work or support rollers of the stand, so that an impairment of the strip flatness is to be expected due to the violation of the profile of the strip cross section, this is not sufficient for the quality requirements.
Rolling systems equipped in this way often run without a closed control loop for flatness control, d. H.
the operator of the system intervenes manually in the system based on his visual impressions and experiences.
the present invention has for its object to provide a flatness control for strip rolling stands, which ensures a constant flatness of the strip when changing the rolling force or the resistance to deformation of the strip to be rolled.
a correction value determined theoretically by the change in rolling force or determined by the series of measurements is applied to the control circuit of the flatness control by means of a pilot control.
the precontrol means that due to the distance between the roll gap and the flatness measuring system caused inertia of known control systems switched off; the flatness errors are compensated for at the point of origin, so that the occurrence of changes in the flatness of the tape z. B. is excluded for changes in speed. Changes in band flatness with great timing, such as B. changes in the profile of the preliminary strip or thermal influences are to be met in an advantageous manner with the known control concepts of the flatness control.
the correction value is determined by means of a simulation curve, taking into account the structural dimensions of the roll stand, the width and the profile of the strip to be rolled, and the rolling force.
the proposed method thus uses the change in the rolling force to pre-control the control loop of the flatness control by means of characteristic curves, by taking into account the strip geometry (profile and width of the incoming strip) a bending force change of the work, intermediate or back-up rolls is determined on the basis of the characteristic curves by a process computer, with the requirement to ensure the consistency of the slivering strip profile in the event of changes in the rolling force.
the simulation calculation is carried out on the basis of pass schedule data with a calculation model on an EDP system, with which, by comparing the theoretically determined strip profiles with the target strip profile, the manipulated variable is determined which leads to the best possible match between the target and actual strip profile shortness of the rolling stock .
the z. B. Value pairs of rolling force / bending force determined in this way can be plotted graphically according to strip width and passes. Equalization straight line equations can also be determined and recorded with the aid of a computer, it being shown that the dependence of the rolling force / bending force can be represented very well by a straight line equation in all the cases examined.
the work rolls of a strip mill stand are designated.
a measuring roller of a measuring system for detecting the flatness of the strip is designated, over which the rolled strip 4 is guided.
the strip rolling stand is equipped with a measuring device for detecting the rolling force Fw or the change in rolling force Fw. Furthermore, the roll stand contains actuating devices 8 for controlling flatness errors, as indicated for S, FB, Q and HZr.
the known control loop consisted of the measuring system for the strip flatness, which is indicated at 6, the measured value of which was compared with target curves in the flatness control (indicated at 7), and possibly a signal to the actuating devices for the correction of flatness errors (indicated at 8) ). It was possible to start in this control loop phase of the strip of the operator, as also indicated at 2, intervene in order to correct flatness errors by changing the rolling force.
the present invention provides to use the precontrol indicated at 9 in order to apply a correction value determined by rolling force change Fw to the known control system by means of predefined characteristic curves created by simulation calculation, with which flatness errors can be controlled without delay.
the conventional control loop is maintained, so that changes in the strip flatness can still be compensated for by the conventional control loop with great timing.
the feedforward control according to the invention although it can be used during the entire rolling process, is primarily suitable for compensating for changes in strip flatness during the threading-in phase when rolling the strip in and out of the strip by changes in speed.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Control Of Metal Rolling (AREA)

EP85108724A 1984-08-16 1985-07-12 Commande de la planéité pour cages de cylindres à feuillards Expired EP0173045B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3430034		1984-08-16
DE19843430034 DE3430034A1 (de)	1984-08-16	1984-08-16	Planheitsregelung an bandwalzgeruesten

Publications (2)

Publication Number	Publication Date
EP0173045A1 true EP0173045A1 (fr)	1986-03-05
EP0173045B1 EP0173045B1 (fr)	1988-12-28

Family

ID=6243109

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP85108724A Expired EP0173045B1 (fr)	1984-08-16	1985-07-12	Commande de la planéité pour cages de cylindres à feuillards

Country Status (3)

Country	Link
US (1)	US4753093A (fr)
EP (1)	EP0173045B1 (fr)
DE (1)	DE3430034A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1991018688A1 (fr) *	1990-06-05	1991-12-12	Mannesmann Ag	Procede de fabrication d'un feuillard a faible contrainte interne par laminage
WO1993000181A1 (fr) *	1991-06-28	1993-01-07	Siemens Aktiengesellschaft	Systeme de regulation de la fabrication de feuillards lamines a chaud au moyen de laminoirs a chaud a cages multiples

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3823202A1 (de) *	1988-07-08	1990-01-11	Betr Forsch Inst Angew Forsch	Verfahren zum kaltwalzen von blechen und baendern
DE3840016A1 (de) *	1988-11-26	1990-05-31	Schloemann Siemag Ag	Verfahren zum richten von blechen, baendern, tafeln, profilen, traegern etc.
DE4091342C2 (de) *	1989-07-31	1993-11-04	Toshiba Kawasaki Kk	Vorrichtung zur lagesteuerung einer walzplatte
US5325692A (en) *	1992-09-28	1994-07-05	Sumitomo Light Metal Industries, Ltd.	Method of controlling transverse shape of rolled strip, based on tension distribution
DE19843899C1 (de) *	1998-09-24	2000-05-04	Bwg Bergwerk Walzwerk	Verfahren und Vorrichtung zur Planheitsmessung von Bändern
US20100318245A1 (en) *	2005-03-03	2010-12-16	Nabtesco Corporation	Flight control system
BRPI0715966A2 (pt)	2006-08-28	2013-08-06	Air Prod & Chem	aparelho, e mÉtodo
US20110083447A1 (en) *	2007-08-28	2011-04-14	Air Products And Chemicals, Inc.	Apparatus and method for monitoring and regulating cryogenic cooling
BRPI0815929A2 (pt) *	2007-08-28	2017-05-16	Air Prod & Chem	equipamento, método para prevenir a formação de congelamento em um dispositivo criogênicos, e método de operar um dispositivo criogênico
MX2010002067A (es)	2007-08-28	2010-05-21	Air Prod & Chem	Aparato y metodo para controlar la temperatura de un criogeno.
CN101842171A (zh) *	2007-08-28	2010-09-22	气体产品与化学公司	在轧机机座宽度内泄放非线性致冷剂喷射物的方法和设备
EP2197600A4 (fr) *	2007-08-28	2011-10-05	Air Prod & Chem	Écoulement de cryogène sur des surfaces de pièces à travailler dans un laminoir à froid
CN102716917B (zh) *	2012-06-21	2015-03-04	中冶南方工程技术有限公司	冷轧带钢板形目标曲线手动调整计算方法
JP6743835B2 (ja) *	2018-01-31	2020-08-19	Ｊｆｅスチール株式会社	形鋼の圧延方法及び形鋼の圧延におけるレベリング量の調整方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0108379A2 (fr) *	1982-11-03	1984-05-16	Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH	Procédé et commande pour régler la distribution de l'effort de traction pendant le laminage à froid de bandes

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1199203A (en) *	1966-11-30	1970-07-15	Nippon Kokan Kk	Apparatus for Controlling the Shape of a Workpiece During Rolling
US3568637A (en) *	1968-05-13	1971-03-09	Westinghouse Electric Corp	Tandem mill force feed forward adaptive system
US3630055A (en) *	1969-05-14	1971-12-28	Gen Electric	Workpiece shape control
US3855830A (en) *	1969-08-04	1974-12-24	Hitachi Ltd	Method and apparatus for controlling plate thickness in a rolling mill
US3934438A (en) *	1973-05-09	1976-01-27	Nippon Kokan Kabushiki Kaisha	Method of long-edge shape control for tandem rolling mill
US4125004A (en) *	1977-07-12	1978-11-14	Amtel, Inc.	Rolling mill gauge control system
JPS55112111A (en) *	1979-02-23	1980-08-29	Hitachi Ltd	Controller for continuous rolling mill
US4244025A (en) *	1979-03-20	1981-01-06	Alshuk Thomas J	Rolling mill gauge control system
DE2927769C2 (de) *	1979-07-10	1987-01-22	SMS Schloemann-Siemag AG, 4000 Düsseldorf	Vorrichtung zur Regelung der Planheit bandförmigen Metall-Walzgutes in einer Kaltwalzstraße
JPS5611103A (en) *	1979-07-10	1981-02-04	Ishikawajima Harima Heavy Ind Co Ltd	Method and apparatus for controlling shape of rolled sheet
GB2100470A (en) *	1981-04-25	1982-12-22	British Aluminium Co Ltd	Working strip material
JPS586713A (ja) *	1981-07-06	1983-01-14	Ishikawajima Harima Heavy Ind Co Ltd	圧延機の形状制御装置
DE3216317A1 (de) *	1982-05-03	1983-11-03	Ishikawajima-Harima Jukogyo K.K., Tokyo	Verfahren und vorrichtung zur veraenderbaren regelung der quersteifigkeit eines walzwerkes
DE3476742D1 (en) *	1983-03-14	1989-03-23	Schloemann Siemag Ag	Method of making hot rolled strip with a high quality section and flatness
US4513594A (en) *	1983-08-22	1985-04-30	Tippins Machinery Company, Inc.	Method and apparatus for combining automatic gauge control and strip profile control

1984
- 1984-08-16 DE DE19843430034 patent/DE3430034A1/de active Granted
1985
- 1985-07-12 EP EP85108724A patent/EP0173045B1/fr not_active Expired
- 1985-08-15 US US06/766,112 patent/US4753093A/en not_active Expired - Fee Related

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0108379A2 (fr) *	1982-11-03	1984-05-16	Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH	Procédé et commande pour régler la distribution de l'effort de traction pendant le laminage à froid de bandes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BBC-NACHRICHTEN, Band 62, Nr. 11, 1980, Seiten 451-456, Mannheim, DE; R. OBERHAUS: "Regelung der Bandplanheit in Kaltwalzwerken" *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1991018688A1 (fr) *	1990-06-05	1991-12-12	Mannesmann Ag	Procede de fabrication d'un feuillard a faible contrainte interne par laminage
US5365761A (en) *	1990-06-05	1994-11-22	Mannesmann Aktiengesellschaft	Method for the production of low-residual-stress rolled strip
WO1993000181A1 (fr) *	1991-06-28	1993-01-07	Siemens Aktiengesellschaft	Systeme de regulation de la fabrication de feuillards lamines a chaud au moyen de laminoirs a chaud a cages multiples
US5502992A (en) *	1991-06-28	1996-04-02	Siemens Aktiengesellshaft	Regulation system in the manufacture of hot rolled strips by means of a multi-stand hot rolling mill

Also Published As

Publication number	Publication date
EP0173045B1 (fr)	1988-12-28
DE3430034A1 (de)	1986-02-27
DE3430034C2 (fr)	1988-03-10
US4753093A (en)	1988-06-28

Legal Events

Date	Code	Title	Description
1986-01-18	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1986-03-05	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE FR LU NL
1986-05-28	17P	Request for examination filed	Effective date: 19860327
1987-09-16	17Q	First examination report despatched	Effective date: 19870803
1988-11-12	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1988-12-28	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE FR LU NL
1989-03-10	ET	Fr: translation filed
1989-06-16	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19890616 Year of fee payment: 5
1989-06-22	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: LU Payment date: 19890622 Year of fee payment: 5
1989-07-03	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19890703 Year of fee payment: 5
1989-07-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19890731
1989-07-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19890731 Year of fee payment: 5
1989-10-16	PLBI	Opposition filed	Free format text: ORIGINAL CODE: 0009260
1989-12-06	26	Opposition filed	Opponent name: HOOGOVENS GROEP BV Effective date: 19890928 Opponent name: ASEA BROWN BOVERI AG Effective date: 19890926 Opponent name: SMS SCHLOEMANN-SIEMAG AG Effective date: 19890920
1990-02-01	NLR1	Nl: opposition has been filed with the epo	Opponent name: HOOGOVENS GROEP BV Opponent name: ASEA BROWN BOVERI AG Opponent name: SMS SCHLOEMANN-SIEMAG AG
1990-07-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19900731
1990-11-27	RDAG	Patent revoked	Free format text: ORIGINAL CODE: 0009271
1990-11-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: PATENT REVOKED
1991-01-16	27W	Patent revoked	Effective date: 19900830
1991-01-31	BERE	Be: lapsed	Owner name: MANNESMANN A.G. Effective date: 19900731
1991-03-18	NLR2	Nl: decision of opposition
2009-06-19	PLAB	Opposition data, opponent's data or that of the opponent's representative modified	Free format text: ORIGINAL CODE: 0009299OPPO

Publication	Publication Date	Title
DE3036997C2 (fr)	1987-07-23
EP0173045B1 (fr)	1988-12-28	Commande de la planéité pour cages de cylindres à feuillards
DE3116278C2 (fr)	1988-06-30
EP0121148B1 (fr)	1989-02-15	Procédé pour la fabrication de feuillard à chaud avec section et planéité de bande de haute qualité
DE1956746A1 (de)	1970-07-09	Einrichtung zur Dickenregelung von Walzgut
WO2001072444A1 (fr)	2001-10-04	Procede et dispositif permettant d'enrouler un feuillard lamine a chaud dans une position correcte, dans un dispositif d'enroulement
DE19818207C2 (de)	2000-05-31	Steckel-Warmwalzwerk
DE2457696A1 (de)	1975-06-12	Regelsystem fuer bandtemperatur
DE1527761C3 (de)	1980-09-04	Einrichtung für den betriebsmäßigen Ausgleich der Änderung der Balligkeit von Arbeitswalzen einer Walzenstraße
DE3303829C2 (fr)	1989-06-15
DE3721746A1 (de)	1989-01-19	Verfahren und vorrichtung zur messung der planheit von walzband in warmbreitbandstrassen
DE3314466A1 (de)	1983-11-03	Verfahren und vorrichtung zum steuern einer zwischengeruestspannung in einem kontinuierlichen walzwerk
DE4136013C2 (de)	1995-08-31	Verfahren und Vorrichtung zum Steuern eines Walzwerks
EP1173295B1 (fr)	2004-06-02	Procede de laminage d'un feuillard metallique et dispositif de laminage y relatif
DE19505694C1 (de)	1996-07-04	Einrichtung zur Dickenregelung von Walzgut
DE2836595A1 (de)	1979-03-29	Verfahren zur regelung der dicke eines flachen produkts waehrend des walzens und vorrichtung zur durchfuehrung des verfahrens
EP0752285A2 (fr)	1997-01-08	Procédé et dispositif de laminage de bandes ayant transversalement des irrégularités d'épaisseur et/ou de longeur
EP0734795B1 (fr)	2000-01-26	Procédé pour la régulation à action directe d'épaisseur dans le laminage de feuillards
EP2460597A1 (fr)	2012-06-06	Procédé de commande d'une voie de laminage en tandem, dispositif de commande et/ou de réglage pour une voie de laminage en tandem, code de programme lisible par machine, support de stockage et voie de laminage en tandem
DE3026229C2 (fr)	1989-07-20
DE3401894A1 (de)	1985-07-25	Verfahren zum herstellen von walzband mit hoher bandprofil- und bandplanheitsguete
DE3837101A1 (de)	1990-05-03	Verfahren zum steuern des bandlaufs beim walzen, in einer walzstrasse
WO2019145079A1 (fr)	2019-08-01	Réglage d'un processus de laminage
DE68903738T2 (de)	1993-04-08	Warmwalzen von metallband.
DE3637043A1 (de)	1988-05-05	Verfahren zum vorausbestimmten einhalten enger dickentoleranzen beim walzen von walzgut in warmbandstrassen