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WO2025114006A1 - Procédé, dispositif et programme informatique pour ajuster la répartition de la tension de bande lors de l'enroulement d'une bande métallique laminée à froid - Google Patents

Procédé, dispositif et programme informatique pour ajuster la répartition de la tension de bande lors de l'enroulement d'une bande métallique laminée à froid Download PDF

Info

Publication number
WO2025114006A1
WO2025114006A1 PCT/EP2024/082215 EP2024082215W WO2025114006A1 WO 2025114006 A1 WO2025114006 A1 WO 2025114006A1 EP 2024082215 W EP2024082215 W EP 2024082215W WO 2025114006 A1 WO2025114006 A1 WO 2025114006A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal strip
distribution
strip
width
winding
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
PCT/EP2024/082215
Other languages
German (de)
English (en)
Inventor
Lutz Kümmel
Ilter TASIN
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 Group GmbH
Original Assignee
SMS Group 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
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of WO2025114006A1 publication Critical patent/WO2025114006A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/003—Regulation of tension or speed; Braking
    • 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
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F

Definitions

  • the invention relates to a method, a device, and a computer program for controlling the distribution of strip tension when coiling a cold-rolled metal strip into a coil using a coiling and rewinding device.
  • the invention also relates to a system for implementing the method.
  • CN 102029294 A discloses a method for cold rolling a steel strip using a cold rolling mill in which the thickness distribution of the metal strip is controlled in the width direction.
  • CN 101618402 A discloses a controlled combination of a flatness feedforward control and a flatness control.
  • the invention is based on the object of developing a known method and computer program product, a known device for regulating the distribution of the strip tension during the coiling of a cold-rolled metal strip and a known system with the device in such a way that the flatness of the metal strip is improved after coiling and in particular after uncoiling, even if the cross-section of the metal strip varies in the width and length directions of the metal strip before coiling.
  • varying cross-section means, for example, different crowning ranges, different wedge profiles, concave cross-sections or cross-sections with a shifted center.
  • the method according to the invention is characterized in that the distribution of the desired strip tension across the width of the metal strip is adjusted during coiling, additionally taking into account a thickness distribution of the metal strip across its width.
  • the term “distribution of the strip tension over the strip width” also includes all physical quantities representing this term, such as the distribution of the tangential winding speed over the width.
  • the claimed additional consideration of the thickness distribution of the metal strip across its width when specifying the distribution of the target strip tension across the width of the metal strip during coiling enables and advantageously results in significantly improved compensation for the profile deviations that disadvantageously accumulate during the coiling of the metal strip.
  • This improved compensation results in an improvement in the flatness of the metal strip, particularly after it has been unwound from the previously coiled coil.
  • each metal strip to be wound has an individual thickness distribution in the width direction, and this can also vary in the longitudinal direction of the strip, it is necessary that the distribution of the desired strip tension in the width direction must also be specified individually and in a time-varying manner in order to ultimately obtain a flat and thus largely stress-free metal strip.
  • Such an individual, i.e., metal strip- and coil-specific specification for the distribution of the desired strip tension is made possible by the present invention.
  • the required adjustment of the distribution of the target strip tension over time is necessary because both criteria—i.e., the distribution of the coil diameter across its width and the thickness distribution of the metal strip across its width—can change over the length of the strip. Thus, they may also change during the winding process.
  • Fig. 1 illustrates a system for implementing or applying the control method according to the invention.
  • the system has a winding-reel device 140 for winding a metal strip 5 into a coil 6.
  • at least one actuator 120, 130 for building up strip tension in the metal strip 5 is arranged upstream of the winding-reel device 140, particularly in its inlet area, relative to the running direction R.
  • a flatness measuring roller 150 is arranged downstream of the winding-reel device 140 for measuring the resulting flatness of the metal strip 5, particularly after it has been unwound from the coil 6.
  • the at least one actuator serves to adjust and/or vary a control variable.
  • the control variable can be, for example, the bending, crowning and/or axial displacement of at least one of the work rolls of a hot rolling stand 120 or cold rolling stand 130 arranged upstream of the coiling-reel device 140.
  • Devices are assigned to the stands which effect the variation of said control variables. These devices are, for example, bending cylinders for adjusting and/or varying the bending of the work rolls of the stand and/or a roll cooling device for adjusting and/or varying the crowning of the work rolls of the stands.
  • the device can also be an axial displacement device for adjusting and/or Variation of the axial position of the work roll and relative to the stand of the rolling mill and relative to the passing metal strip.
  • Fig. 2 illustrates the process. It comprises the following steps:
  • the distribution of the desired strip tension across the width of the metal strip is adjusted in an adjustment device 60 during the winding process, taking into account the changing distribution of the winding diameter W of the coil 6 across its width during the winding process.
  • the distribution of the desired strip tension is reduced in accordance with the coil diameter, which increases during winding. This already achieves a certain improvement in the flatness of the subsequently unwound metal strip.
  • the distribution of the desired strip tension across the width of the metal strip during coiling in the adjustment device 60 is additionally adapted to the thickness distribution D of the metal strip across its width. In this way, a significantly improved flatness is advantageously achieved, in particular of the subsequently unwound metal strip 5.
  • the distribution of the desired strip tension, adjusted twice in this way, is then compared in a comparator device 20 with the previously or simultaneously determined distribution of the actual strip tension on the winding-reel device 140.
  • Any strip tension control deviation e determined in this process is fed to a controller 30, which, in accordance with the control deviation e, sets or varies at least one of the above-mentioned manipulated variables and outputs it to the associated actuator 40 in such a way that the determined distribution of the actual strip tension is regulated to the at least twice-adjusted distribution of the desired strip tension, i.e., that the strip tension control deviation e becomes as close to zero as possible.
  • the controlled system 50 is essentially the system according to Fig. 1.
  • the thickness distribution of the metal strip 5 can alternatively be determined upstream of the winding-reel device 140, for example in the region of a strand guide 110 upstream of the winding-reel device 140, in the region of the hot rolling stand 120 of a hot rolling mill and/or in the region of the cold rolling stand 130 of an upstream cold rolling mill.
  • the profile of a cast strand, from which the metal strip is later produced can be determined.
  • the profile of a hot-rolled metal strand or slab can be determined, from which the metal strip is later produced.
  • the thickness distribution determined upstream of the winding-reel device as a representative is converted to the thickness distribution of the metal strip at the level of the inlet of the winding-reel device using a thickness distribution conversion module 160. Said distance is too large if the difference between the thickness distribution determined upstream and the thickness distribution at the winding-reel device exceeds a specified permissible deviation.
  • the conversion module 160 is unnecessary.
  • the thickness distribution of the metal strip 5 across its width is determined, for example, by manual or automatic measuring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

L'invention concerne un procédé, un dispositif et un programme informatique pour ajuster la répartition de la tension de bande lors de l'enroulement d'une bande métallique laminée à froid (5) en utilisant un dispositif d'enroulement (140) pour former une bobine. Le procédé comprend les étapes suivantes consistant à : - détecter la répartition de la tension de bande actuelle sur la largeur de la bande métallique lors de l'enroulement de la bande (5) en amont du dispositif d'enroulement (140) ; et - ajuster la répartition de la tension de bande actuelle sur une répartition spécifiée de la tension de bande cible sur la largeur de la bande métallique (5) en appliquant une variation appropriée à au moins une variable de commande, la répartition de la tension de bande cible sur la largeur de la bande métallique (5) étant adaptée pendant l'enroulement en tenant compte d'une répartition du diamètre d'enroulement W de la bobine sur sa largeur qui change lors de l'enroulement. Afin d'améliorer la planéité de la bande métallique (5) ultérieurement déroulée de la bobine, selon l'invention, la répartition de la tension de bande cible sur la largeur de la bande métallique (5) est en outre adaptée à la répartition de l'épaisseur D de la bande métallique (5) sur sa largeur pendant l'enroulement.
PCT/EP2024/082215 2023-11-29 2024-11-13 Procédé, dispositif et programme informatique pour ajuster la répartition de la tension de bande lors de l'enroulement d'une bande métallique laminée à froid Pending WO2025114006A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023211969.2 2023-11-29
DE102023211969.2A DE102023211969A1 (de) 2023-11-29 2023-11-29 Verfahren, Vorrichtung und Computerprogramm zum Regeln der Verteilung des Bandzugs beim Aufhaspeln eines kaltgewalzten Metallbandes

Publications (1)

Publication Number Publication Date
WO2025114006A1 true WO2025114006A1 (fr) 2025-06-05

Family

ID=93563573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/082215 Pending WO2025114006A1 (fr) 2023-11-29 2024-11-13 Procédé, dispositif et programme informatique pour ajuster la répartition de la tension de bande lors de l'enroulement d'une bande métallique laminée à froid

Country Status (2)

Country Link
DE (1) DE102023211969A1 (fr)
WO (1) WO2025114006A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0752285A2 (fr) * 1995-07-07 1997-01-08 Sundwiger Eisenhütte Maschinenfabrik Grah & Co Procédé et dispositif de laminage de bandes ayant transversalement des irrégularités d'épaisseur et/ou de longeur
JP2002035832A (ja) * 2000-07-19 2002-02-05 Mitsubishi Heavy Ind Ltd 圧延設備の形状検出装置、及び、圧延設備における形状検出方法
KR20030054637A (ko) * 2001-12-26 2003-07-02 주식회사 포스코 평탄도 제어를 수행하는 피드백 제어 장치 및 방법
CN101618402A (zh) 2008-06-30 2010-01-06 宝山钢铁股份有限公司 冷轧带钢平直度控制方法
CN102029294A (zh) 2009-09-28 2011-04-27 宝山钢铁股份有限公司 冷轧带钢横向厚差控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0752285A2 (fr) * 1995-07-07 1997-01-08 Sundwiger Eisenhütte Maschinenfabrik Grah & Co Procédé et dispositif de laminage de bandes ayant transversalement des irrégularités d'épaisseur et/ou de longeur
JP2002035832A (ja) * 2000-07-19 2002-02-05 Mitsubishi Heavy Ind Ltd 圧延設備の形状検出装置、及び、圧延設備における形状検出方法
KR20030054637A (ko) * 2001-12-26 2003-07-02 주식회사 포스코 평탄도 제어를 수행하는 피드백 제어 장치 및 방법
CN101618402A (zh) 2008-06-30 2010-01-06 宝山钢铁股份有限公司 冷轧带钢平直度控制方法
CN102029294A (zh) 2009-09-28 2011-04-27 宝山钢铁股份有限公司 冷轧带钢横向厚差控制方法

Also Published As

Publication number Publication date
DE102023211969A1 (de) 2025-06-05

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