EP0734795B1 - Procédé pour la régulation à action directe d'épaisseur dans le laminage de feuillards - Google Patents

Procédé pour la régulation à action directe d'épaisseur dans le laminage de feuillards Download PDF

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Publication number
EP0734795B1
EP0734795B1 EP96104291A EP96104291A EP0734795B1 EP 0734795 B1 EP0734795 B1 EP 0734795B1 EP 96104291 A EP96104291 A EP 96104291A EP 96104291 A EP96104291 A EP 96104291A EP 0734795 B1 EP0734795 B1 EP 0734795B1
Authority
EP
European Patent Office
Prior art keywords
thickness
rolling
control
strip
setting
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.)
Expired - Lifetime
Application number
EP96104291A
Other languages
German (de)
English (en)
Other versions
EP0734795A1 (fr
Inventor
Hans-Georg Hartung
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.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag 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.)
Filing date
Publication date
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0734795A1 publication Critical patent/EP0734795A1/fr
Application granted granted Critical
Publication of EP0734795B1 publication Critical patent/EP0734795B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
    • 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
    • B21B37/48—Tension control; Compression control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/40—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling foils which present special problems, e.g. because of thinness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/02—Tension
    • B21B2265/04—Front or inlet tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/08—Braking or tensioning arrangements

Definitions

  • the invention relates to a method for thickness precontrol in Foil rollers with the help of effect characteristics stored in a process computer of the individual manipulated variables (e.g. strip tension, rolling speeds) for different working points (operating states) or with the help of an on-line working physical calculation model, also in combination with a monitor control.
  • a process computer of the individual manipulated variables (e.g. strip tension, rolling speeds) for different working points (operating states) or with the help of an on-line working physical calculation model, also in combination with a monitor control.
  • the thickness can no longer be used in film rolling Regulate with the help of a position control, because this is extremely high Tape module of the film fails, which is also the use of a tape roll usual Thickness feedforward excludes, with which in time with the achievement of a incoming thickness error the rolling force or the position of the employment so can change that the outlet thickness remains as unchanged as possible.
  • Thickness feedforward excludes, with which in time with the achievement of a incoming thickness error the rolling force or the position of the employment so can change that the outlet thickness remains as unchanged as possible.
  • JP-A 2-268 913 has made it known for the rolling of metallic strips, Changes in tensile stress based on thickness measurements of the Determine the strip and the thickness of the rolled strip by appropriate positioning of bending rollers immersed in the belt. From US-A 4 548 063 a regulation is known for the rolling of a metal strip, of which assumes that the expected inlet speed change in the case of a incoming thickness error is compensated during the decoiler itself undisturbed by it, continuing to focus on the constancy of withdrawal, which means that ultimately only the constancy of the withdrawal is regulated. Also at Rolling metallic strips is described in JP-A 57-193 216 and JP-A 62-104 614 known, for the thickness accuracy of the finished strip based on thickness measurements To take regulatory measures, such as influencing the Rolling speed.
  • the invention is therefore based on the object of a method to create the kind mentioned at the outset, with which the consequences of an upstream Compensate for thickness deviations faster and better.
  • the thickness deviations Film determined on the inlet side and compensated by a thickness control, the manipulated variable, preferably while maintaining the other rolling parameters the belt tension by means of a highly dynamic adjusting device depending on the Working point is changed.
  • the invention lies here both through practical Experience as well as knowledge gained through theoretical investigations is based on the fact that, in good approximation, an inlet-side thickness deviation of the film directly on the outlet side is directly proportional to the reduction. Therefore do it empirically obtained or with the help of a physical-mathematical calculation model knowledge about the effects of a change in Rolling parameters the thickness precontrol according to the invention for film rolling possible, i.e.
  • Analogous to monitor control namely the retraction voltage is the most effective manipulated variable for influencing the film thickness
  • the dependencies of the effects of a Inlet thickness change from the manipulated variable, preferably the retraction voltage various operating points determined and in the process computer for the Thickness control saved.
  • a working point is defined by a certain one Combination of process parameters, e.g. Outlet thickness, rolling speed, preferred tension, Roll diameter or lubrication.
  • the regulation according to the invention by means of thickness precontrol is moreover able to evaluate whether a Pre-control intervention or a possibly necessary Intervention of a downstream thickness control with a certain manipulated variable is still possible or useful. If for example the difference quotient tends towards infinity, this means that the manipulated variable has no effect and another manipulated variable must be used when rolling foils for example the outlet tension or the rolling force, but their effect is rather indirect through a shift of the Working point can be seen.
  • Fig. 1 shows a diagram of a plant 1 for rolling a Foil or a film strip 2.
  • the film strip 2 is one Bund 3 withdrawn from a reel 4 and the roll gap 5 one Roll stand 6 of a downstream one, not further in detail shown rolling mill supplied.
  • the roll stand 6 is made from an upper and a lower support roller 7 and the associated work rolls 8.
  • a commercial thickness gauge 9 is arranged and electrically connected to a higher-level process computer 10.
  • the thickness measuring device 9 is arranged in front of the roll stand 6 Traction means 11 in the form of three rollers 12 and 13 respectively downstream 3-roller bridges.
  • the middle Roll 13 is hydraulic, controlled by force or position adjustable and electrical also with the process computer 10 connected control role formed, which - as shown - If necessary, immersed in the film strip and by means of a Changing the strap loop 14 affects the retraction voltage.
  • FIG. 2 shows another embodiment of a system 100 for Rolling a film or a film strip 2.
  • the process largely corresponds to that of the system 1 of FIG. 1 with the Exception that the necessary for the thickness feedforward control rapid withdrawal changes not by means of a intermediate traction means, but directly with a highly dynamic reel 16 can be made.
  • the control roller 13 of the traction means 11 is lowered into the tape run of the film 2 as shown in FIG. This is done in a timely manner, ie with a high dynamic of the train change, which enables the control roller 13 to be adjusted, ie lowered and raised.
  • the thickness measuring device 9 arranged between the decoiler 4 and the roll gap 5 or roll stand 6, an additive change in tension measured on the basis of the characteristic curve and the inlet thickness error can be achieved, so that a thickness error is avoided in advance with the described control or is largely reduced.

Landscapes

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

Claims (3)

  1. Procédé pour la régulation à action directe d'épaisseur dans le laminage de feuillards à l'aide de lignes caractéristiques d'action des variables réglantes, mémorisées dans un ordinateur industriel (10), par ex. tractions de bande, vitesses de laminage, pour différents points de fonctionnement, aussi en combinaison avec un réglage de moniteur,
    caractérisé en ce
    que les différences d'épaisseurs du feuillard (2) sont calculées du côté de l'entrée et compensées par une régulation d'épaisseur, la variable réglante, de préférence la tension de traction de bande, étant modifiée par un système de réglage (13) à réponse très rapide en fonction du point de fonctionnement et en conservant les autres paramètres de laminage.
  2. Procédé selon la revendication 1,
    caractérisé en ce
    que la valeur de consigne de la variable réglante et la fenêtre de réglage des variables réglantes pour le retour du système de réglage est décalée à une position neutre ou à une valeur neutre.
  3. Procédé selon la revendication 1,
    caractérisé en ce
    que la tension de traction de retour de bande est modifiée par un dévidoir à réponse très rapide en fonction du point de fonctionnement.
EP96104291A 1995-03-30 1996-03-19 Procédé pour la régulation à action directe d'épaisseur dans le laminage de feuillards Expired - Lifetime EP0734795B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19511801A DE19511801A1 (de) 1995-03-30 1995-03-30 Verfahren und Vorrichtung zur Dickenvorsteuerung beim Folienwalzen
DE19511801 1995-03-30

Publications (2)

Publication Number Publication Date
EP0734795A1 EP0734795A1 (fr) 1996-10-02
EP0734795B1 true EP0734795B1 (fr) 2000-01-26

Family

ID=7758235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96104291A Expired - Lifetime EP0734795B1 (fr) 1995-03-30 1996-03-19 Procédé pour la régulation à action directe d'épaisseur dans le laminage de feuillards

Country Status (7)

Country Link
US (1) US5771724A (fr)
EP (1) EP0734795B1 (fr)
JP (1) JP3697313B2 (fr)
KR (1) KR100394489B1 (fr)
AT (1) ATE189140T1 (fr)
CA (1) CA2173049C (fr)
DE (2) DE19511801A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101934289A (zh) * 2009-06-30 2011-01-05 上海宝信软件股份有限公司 不锈钢冷连轧辊缝调整方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100775462B1 (ko) * 2001-09-05 2007-11-12 주식회사 포스코 슬라브 압연방법
DE102006008574A1 (de) * 2006-02-22 2007-08-30 Siemens Ag Verfahren zur Unterdrückung des Einflusses von Walzenexzentrizitäten
CN104324951B (zh) * 2013-07-22 2016-08-24 宝山钢铁股份有限公司 单机架启动轧制力设定和控制方法
CN103801563A (zh) * 2014-01-22 2014-05-21 江苏亨特宏业重工有限公司 铝箔轧机定辊装置
CN104492828A (zh) * 2014-12-27 2015-04-08 陆余圣 一种用于轧制机的激光位移感应装置及其使用方法
TWI580489B (zh) * 2015-10-07 2017-05-01 Metal Ind Res And Dev Centre Sheet thickness precision control equipment
ITUB20169972A1 (it) * 2016-01-14 2017-07-14 Guasta Fabrizio Procedimento di laminazione di fogli di alluminio

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SU858955A1 (ru) * 1979-08-17 1981-08-30 за вители А,П. Грудев, А.Д. Размахнин, К. А. Ивано|в В.Г. Шув ков, В.А. Сорокин и Г.В. Фот 5с&. ::п:;;-/7-: Непрерывный прокатный стан
JPS5650709A (en) * 1979-09-29 1981-05-08 Sumitomo Metal Ind Ltd Preventing method for fluctuation of finished breadth in hot strip mill
JPS57103724A (en) * 1980-12-19 1982-06-28 Hitachi Ltd Automatic thickness controlling system in metallic foil rolling mill
JPS57193216A (en) * 1981-05-26 1982-11-27 Toshiba Corp Plate thickness controlling method of rolling mill
JPS5841602A (ja) * 1981-09-03 1983-03-10 Sumitomo Metal Ind Ltd 冷間圧延方法
CH663555A5 (de) * 1984-02-06 1987-12-31 Escher Wyss Ag Verfahren und vorrichtung zum walzen von aluminium-folien.
US4548063A (en) * 1984-06-25 1985-10-22 General Electric Company Tension control in a metal rolling mill
IT1182868B (it) * 1985-09-20 1987-10-05 Randolph Norwood Mitchell Procedimento ed apparecchiatura per il controllo e/o correzione continua del profilo e planarita' di nastri metallici e simili
JPH0613130B2 (ja) * 1985-10-31 1994-02-23 新日本製鐵株式会社 圧延板厚制御方法
GB8621102D0 (en) * 1986-09-01 1986-10-08 Davy Mckee Sheffield Hot strip mill
JPH01181912A (ja) * 1988-01-12 1989-07-19 Kawasaki Steel Corp 難加工金属箔帯の圧延設備
FR2628987A1 (fr) * 1988-03-25 1989-09-29 Ugine Aciers Dispositif de laminage a froid des toles minces et extra-minces
JPH0246918A (ja) * 1988-08-04 1990-02-16 Showa Alum Corp 圧延箔等の自動圧延制御方法
GB8825714D0 (en) * 1988-11-03 1988-12-07 Davy Mckee Sheffield Hot rolling of metal strip
EP0376887B1 (fr) * 1988-12-30 1993-07-14 Alusuisse-Lonza Services Ag Procédé et dispositif pour régler la planéité d'une bande métallique laminée à froid
JPH02268913A (ja) * 1989-04-06 1990-11-02 Kobe Steel Ltd 入側張力変動吸収装置を備えた圧延機
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101934289A (zh) * 2009-06-30 2011-01-05 上海宝信软件股份有限公司 不锈钢冷连轧辊缝调整方法
CN101934289B (zh) * 2009-06-30 2013-12-25 上海宝信软件股份有限公司 不锈钢冷连轧辊缝调整方法

Also Published As

Publication number Publication date
DE59604264D1 (de) 2000-03-02
KR100394489B1 (ko) 2003-12-24
KR960033578A (ko) 1996-10-22
DE19511801A1 (de) 1996-10-02
CA2173049C (fr) 2007-06-12
EP0734795A1 (fr) 1996-10-02
JP3697313B2 (ja) 2005-09-21
ATE189140T1 (de) 2000-02-15
CA2173049A1 (fr) 1996-10-01
US5771724A (en) 1998-06-30
JPH08281313A (ja) 1996-10-29

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