EP1899086B1 - Procede et dispositif pour produire une bande metallique - Google Patents

Procede et dispositif pour produire une bande metallique Download PDF

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Publication number
EP1899086B1
EP1899086B1 EP06753734A EP06753734A EP1899086B1 EP 1899086 B1 EP1899086 B1 EP 1899086B1 EP 06753734 A EP06753734 A EP 06753734A EP 06753734 A EP06753734 A EP 06753734A EP 1899086 B1 EP1899086 B1 EP 1899086B1
Authority
EP
European Patent Office
Prior art keywords
metal strip
strip
cameras
rollers
tensile stresses
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.)
Not-in-force
Application number
EP06753734A
Other languages
German (de)
English (en)
Other versions
EP1899086A1 (fr
Inventor
Wolfgang Denker
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
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SMS Siemag AG
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Filing date
Publication date
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP1899086A1 publication Critical patent/EP1899086A1/fr
Application granted granted Critical
Publication of EP1899086B1 publication Critical patent/EP1899086B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips

Definitions

  • the invention relates to a method for producing a metal strip in which the metal strip is guided over a number of rollers under such a belt tension and moved in a conveying direction that it is largely flat at least between two rollers, wherein in the tensile metal under tension substantially flat metal band between the at least two rollers, the inner tensile stresses acting in the metal strip are made visually visible and the determined tensile stresses or tensile stress differences are utilized in the production of the metal strip. Furthermore, the invention relates to a device for producing a metal strip.
  • the metal strip is frequently subjected to a flatness measurement following the rolling process, with unevenness of the strip being determined.
  • flatness measuring rollers which are pressed with a predetermined biasing force against the energized and moved metal strip. By measuring the removal of the flatness measuring roll as a result of unevenness in the strip from the metal strip, it is possible to deduce the present irregularities in the metal strip. Also known are systems that visualize the voltage differences via vibrations.
  • Unevenness in the metal strip can be determined not only by means of contacting rollers, but also contactless.
  • the disclosed JP 2000046752 A an optical system having a lighting device for the tape and cameras. This makes it possible to measure the surface of the metal strip three-dimensionally and to present the measurement result.
  • the flatness of the metal strip can also be determined with a device as shown in the EP 1 418 400 A2 is known. Flatness deviations are also determined by means of a camera (CCD camera: charge-coupled device - camera).
  • CCD camera charge-coupled device - camera
  • the stress distribution over the width of the metal strip can be visualized in order to be able to draw conclusions about the strip quality.
  • the device should be as space-saving as possible for this determination and do not require much effort during installation and operation.
  • the invention is therefore based on the object, a method and an associated device of the type mentioned in such a way that it is possible to gain even under high belt tension information that allow control of the manufacturing process in such a way that optimizes the strip quality can be.
  • This object is achieved by the method according to the invention in that the metal strip is irradiated with a light source and recorded with two cameras from two different directions.
  • the optically visible tensile stresses in the metal strip are measured and used in the assessment of the strip quality and possibly the control or regulation of the production process.
  • unevenness of the band is detected by different states of tension in the band and insofar as the unevenness is assessed indirectly via the voltages.
  • a further training provides that the strip tension exerted on the metal strip is selected as a function of the determined tensile stresses in the metal strip. In this case, preference is given to proceeding so that the strip tension exerted on the metal strip is increased as the tensile stress in the metal strip increases.
  • the tensile stresses acting in the metal band which can be determined with the mentioned procedure, are preferably determined several times at short time intervals.
  • the change in the tensile stresses acting in the metal strip can be determined by comparing a number of tensile stresses determined at a time interval. By means of a multiplicity of successive ones Images within a short time can thus also be tension pictures for fast moving tapes.
  • the device for producing a metal strip has a number of rollers over which the metal strip is guided under such a belt tension and moved in a conveying direction that it is largely flat at least between two rollers.
  • at least one light source illuminating the metal strip is arranged between two rollers and two cameras are arranged in the region of the light source, which record the illuminated metal strip, the system consisting of light source and cameras being suitable for determining the tensile stresses acting in the metal strip wherein the two cameras are spaced apart so as to receive the metal strip from two different directions.
  • the cameras are preferably of digital design.
  • recording means may be present which store the image taken by the camera or the cameras at short time intervals.
  • the recording means can be connected to evaluation means which are suitable for comparing the images recorded by the camera or the cameras.
  • the metal strip 1 is rolled in the left portion of the figure in a rolling range of two work rolls 11 and 12, which are supported by two back-up rolls 13 and 14.
  • the metal strip 1 is then conveyed in a conveying direction F at a predetermined conveying speed, wherein it is kept below a defined belt tension S.
  • the belt tension S is maintained by guiding the metal belt 1 in the manner outlined, i. H. it is in particular - on the right side of the figure - guided by two rollers 4 and 5 S-shaped, so that a desired level of belt tension S between the rollers 11, 12 and the rollers 4, 5 can be maintained.
  • the metal strip 1 Due to the belt tension S, the metal strip 1 has a high degree of flatness, d. H. the surface irregularities are low.
  • the metal strip 1 is therefore guided largely flat.
  • a light source 6 is arranged, with which the surface of the metal strip 1 can be illuminated.
  • two cameras 7 and 8 are mounted in two different locations, which can take two pictures from the tape surface.
  • the system consisting of the light source 6 and the cameras 7 and 8, which is suitable for carrying out the procedure according to the invention, is known, for example, under the name Q-400 as Digital 3D Correlation System from DANTEC Ettemeyer GmbH, Elchingen, Germany (www .dantec-ettemeyer.com) are known and available.
  • Q-400 Digital 3D Correlation System from DANTEC Ettemeyer GmbH, Elchingen, Germany (www .dantec-ettemeyer.com) are known and available.
  • the available system is well suited to visualize internal stresses in the largely flat metal strip and evaluate, even if this Bandzugschwankache should be necessary to a small extent.
  • the cameras 7, 8 are connected to a recording means 9 which is capable of storing a plurality of recordings in a short time.
  • the recorded images can be evaluated in a subsequent evaluation means 10, it being possible in particular to observe the distribution of the tensile stresses in the metal strip 1 and their temporal change. Depending on this, the manufacturing process for the metal strip 1 can be influenced.
  • a strip tension is maintained in the metal strip 1 in the measurement of the voltages, which corresponds to at least 10% of the yield strength of the material of the metal strip.
  • the use of the determined voltages or voltage differences in the metal strip 1 in the manufacture of the metal strip 1 may already consist in that the stresses are observed in the strip and only in case of need, d. H. If voltage distribution ratios in the band exceed an impermissible value, measures are taken.
  • the values determined are controlled in the closed loop directly in the production process of the metal strip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Control Of Metal Rolling (AREA)
  • Coating With Molten Metal (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Advancing Webs (AREA)

Claims (8)

  1. Procédé pour produire une bande métallique (1), dans lequel la bande métallique (1) est guidée sur un certain nombre de rouleaux (2, 3, 4, 5) et on applique une telle tension à la bande et en la déplaçant dans une direction de convoyage (F) de telle manière qu'elle est largement plane au moins entre deux rouleaux (2, 3), dans lequel, dans la bande métallique (1) sous tension de traction largement plane entre lesdits au moins deux rouleaux (2, 3), les contraintes de traction internes agissant dans la bande métallique (1) sont rendues optiquement visibles et les contraintes de traction ou les différences de contraintes de traction constatées sont exploitées lors de la production de la bande métallique (1),
    caractérisé en ce que
    la bande métallique (1) est illuminé avec une source lumineuse (6) et des images de celle-ci sont prises avec deux caméras (7, 8) depuis deux directions différentes.
  2. Procédé selon la revendication 1,
    caractérisé en ce que la tension (S) exercée sur la bande métallique (1) est choisie en fonction des contraintes de traction constatées dans la bande métallique (1).
  3. Procédé selon la revendication 2,
    caractérisé en ce que lorsque les contraintes de traction dans la bande métallique (1) augmentent, la tension (S) exercée sur la bande métallique (1) est augmentée.
  4. Procédé selon l'une des revendications 1 à 3,
    caractérisé en ce que les contraintes de traction agissant dans la bande métallique (1) sont constatées plusieurs fois à brefs intervalles temporels.
  5. Procédé selon la revendication 4,
    caractérisé en ce que la modification des contraintes de traction agissant dans la bande métallique (1) est constatée par comparaison d'un certain nombre de contraintes de traction constatées à intervalles temporels.
  6. Appareil pour la production d'une bande métallique (1), comprenant un certain nombre de rouleaux (2, 3, 4, 5) sur lesquels la bande métallique (1) est guidée sous une telle tension (S) en étant déplacée dans une direction de convoyage (F), de telle manière qu'elle est largement plane au moins entre deux rouleaux (2, 3), en particulier pour mettre en oeuvre le procédé selon l'une des revendications 1 à 5,
    caractérisé en ce que
    au moins une source lumineuse (6) qui illumine la bande métallique (1) est agencée entre deux rouleaux (2, 3), et en ce que deux caméras (7, 8) sont agencées dans la zone de la source lumineuse (6), lesquelles prennent des images de la bande métallique (1) illuminée, dans lequel le système constitué par la source lumineuse (6) et par les caméras (7, 8) convient pour déterminer les contraintes de traction agissant dans la bande métallique (1), les deux caméras (7, 8) étant agencées à distance l'une de l'autre de telle manière qu'elles prennent des images de la bande métallique (1) depuis deux directions différentes.
  7. Appareil selon la revendication 6,
    caractérisé en ce qu'il est prévu des moyens d'enregistrement (9), qui mémorisent les images prises par la caméra ou par les caméras (7, 8) à brefs intervalles temporels.
  8. Appareil selon la revendication 7,
    caractérisé en ce que les moyens d'enregistrement (9) sont connectés à des moyens d'évaluation (10), qui conviennent pour la comparaison des images prises par la caméra ou par les caméras (7, 8).
EP06753734A 2005-05-20 2006-05-19 Procede et dispositif pour produire une bande metallique Not-in-force EP1899086B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005023270A DE102005023270A1 (de) 2005-05-20 2005-05-20 Verfahren und Vorrichtung zur Herstellung eines Metallbandes
PCT/EP2006/004753 WO2006122817A1 (fr) 2005-05-20 2006-05-19 Procede et dispositif pour produire une bande metallique

Publications (2)

Publication Number Publication Date
EP1899086A1 EP1899086A1 (fr) 2008-03-19
EP1899086B1 true EP1899086B1 (fr) 2009-08-26

Family

ID=36754730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06753734A Not-in-force EP1899086B1 (fr) 2005-05-20 2006-05-19 Procede et dispositif pour produire une bande metallique

Country Status (12)

Country Link
US (2) US7971461B2 (fr)
EP (1) EP1899086B1 (fr)
JP (1) JP2008541074A (fr)
CN (1) CN101287558B (fr)
AT (1) ATE440682T1 (fr)
BR (1) BRPI0608296A2 (fr)
CA (1) CA2598921C (fr)
DE (2) DE102005023270A1 (fr)
ES (1) ES2328956T3 (fr)
RU (1) RU2364455C2 (fr)
UA (1) UA90295C2 (fr)
WO (1) WO2006122817A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011083405A1 (de) * 2010-12-21 2012-06-21 Sms Siemag Ag Verfahren und Vorrichtung zur Oberflächeninspektion von Bandstücken
KR102705671B1 (ko) * 2017-12-11 2024-09-10 타타 스틸 이즈무이덴 베.뷔. 움직이는 스트립의 온도를 측정하는 방법 및 시스템
FR3139895A1 (fr) 2022-09-16 2024-03-22 Constellium Neuf Brisach Dispositif et procédé de contrôle de planéité d’une tôle métallique.

Family Cites Families (21)

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JPS56148414A (en) * 1980-04-21 1981-11-17 Nisshin Steel Co Ltd Correcting method for material strip
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US5083867A (en) * 1988-11-28 1992-01-28 Allegheny Ludlum Corporation Slab surface contour monitor
US5212647A (en) * 1991-07-15 1993-05-18 Preco Industries, Inc. Die stamping press having ccd camera system for automatic 3-axis die registration
RU2048938C1 (ru) 1993-01-14 1995-11-27 Акционерное общество "Новолипецкий металлургический комбинат" Устройство для контроля распределения натяжения по ширине прокатываемой полосы
FR2725512B1 (fr) 1994-10-07 1996-10-31 Lorraine Laminage Dispositif d'evaluation de la planeite d'un produit en defilement
DE59811286D1 (de) * 1997-02-26 2004-06-03 Siemens Ag Einrichtung zur messung der zugspannungsverteilung in einem metallband
DE19709992C1 (de) * 1997-03-11 1998-10-01 Betr Forsch Inst Angew Forsch Verfahren zum Messen der Oberflächengeometrie von Warmband
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Also Published As

Publication number Publication date
DE102005023270A1 (de) 2006-11-23
EP1899086A1 (fr) 2008-03-19
DE502006004671D1 (de) 2009-10-08
US20080125298A1 (en) 2008-05-29
CA2598921A1 (fr) 2006-11-23
CN101287558A (zh) 2008-10-15
RU2007129432A (ru) 2009-02-10
CA2598921C (fr) 2014-03-18
US7971461B2 (en) 2011-07-05
CN101287558B (zh) 2010-05-26
ES2328956T3 (es) 2009-11-19
US20110252848A1 (en) 2011-10-20
JP2008541074A (ja) 2008-11-20
RU2364455C2 (ru) 2009-08-20
WO2006122817A1 (fr) 2006-11-23
BRPI0608296A2 (pt) 2009-12-08
ATE440682T1 (de) 2009-09-15
UA90295C2 (ru) 2010-04-26

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