EP2298461A1 - Train de laminoir à froid doté d'une régulation du débit massique sur une cage de laminoir - Google Patents

Train de laminoir à froid doté d'une régulation du débit massique sur une cage de laminoir Download PDF

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Publication number
EP2298461A1
EP2298461A1 EP09170489A EP09170489A EP2298461A1 EP 2298461 A1 EP2298461 A1 EP 2298461A1 EP 09170489 A EP09170489 A EP 09170489A EP 09170489 A EP09170489 A EP 09170489A EP 2298461 A1 EP2298461 A1 EP 2298461A1
Authority
EP
European Patent Office
Prior art keywords
cold
speed
strip
rolling
stand
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.)
Withdrawn
Application number
EP09170489A
Other languages
German (de)
English (en)
Inventor
Hans-Joachim Felkl
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP09170489A priority Critical patent/EP2298461A1/fr
Priority to BR112012006033A priority patent/BR112012006033A2/pt
Priority to RU2012111278/02A priority patent/RU2518831C2/ru
Priority to EP10754464.5A priority patent/EP2477763B1/fr
Priority to CN201080041410.0A priority patent/CN102481608B/zh
Priority to PCT/EP2010/063277 priority patent/WO2011032888A1/fr
Priority to PL10754464T priority patent/PL2477763T3/pl
Publication of EP2298461A1 publication Critical patent/EP2298461A1/fr
Withdrawn legal-status Critical Current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
    • B21B37/46—Roll speed or drive motor control
    • 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
    • B21B37/58—Roll-force control; Roll-gap control
    • 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
    • B21B2037/002—Mass flow control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/04—Thickness, gauge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2271/00—Mill stand parameters
    • B21B2271/02—Roll gap, screw-down position, draft position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/04—Roll speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/06—Product speed
    • 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/18—Automatic gauge control
    • 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
    • B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product

Definitions

  • the present invention relates to a control method for a cold rolling mill, which has a plurality of cold strip successively traversed stands, wherein metrologically an actual speed is detected, with which the cold strip from one of the rolling stands expires, further comprising a strip thickness is detected with which the cold strip from the expires rolling stand.
  • the present invention further relates to a control device for a cold rolling mill, which has a plurality of rolling mills passed through in succession by a cold strip, the control device being supplied with a metrologically detected actual speed with which the cold strip runs out of one of the rolling mills, wherein the control device further comprises a metrologically detected strip thickness , with which the cold strip from the respective rolling stand runs, is supplied.
  • the present invention further relates to a computer program having machine code which is directly executable by a controller of a multi-stand cold rolling mill and whose execution by the controller causes the control means to control the cold rolling mill according to a control method of the type described in the opening paragraph.
  • the object of the present invention is to provide possibilities by means of which the mass flow can be set precisely in a simple manner even if the band feeding device arranged upstream of the first rolling stand can not actively set the mass flow.
  • control method having the features of claim 1.
  • Advantageous embodiments of the control method according to the invention are the subject of the dependent claims 2 to 5.
  • the setpoint value for the roll circumferential speed of the rolling stand in question is determined on the basis of the target speed and a model-based determined lead and that the tracking of the target value for the roller peripheral speed of the respective rolling stand is realized by the model, by means of which the lead is determined, is adapted by comparing the actual speed with the target speed ,
  • control method according to the invention can in principle be used in any of the rolling stands of the cold rolling mill. It is also possible to use the control method according to the invention simultaneously in several rolling stands of the cold rolling mill. It is preferred that at least the rolling mill of the cold rolling train, which is first passed through by the cold strip, is regulated in accordance with the invention.
  • control device with the features of claim 6.
  • Advantageous embodiments of the control device according to the invention are the subject of the dependent claims 7 to 10.
  • control device correspond in content to those of the control method.
  • control device can be designed as a software programmable control device.
  • the object is further achieved by a computer program of the aforementioned type, whose execution by the control device causes the control device to control the cold rolling train according to a control method according to the invention.
  • the computer program can be stored on a data carrier in machine-readable form.
  • the object is achieved by a cold rolling train, in which - in addition to the features mentioned above - the control device is designed in accordance with the invention, so that the cold rolling mill is operated according to a control method according to the invention.
  • a cold rolling mill for rolling a cold strip 1 has a plurality of rolling stands 2.
  • the rolling stands 2 are passed through by the cold strip 1 in succession.
  • the reference numeral 2 As far as below generally speaking only of the rolling stands 2 of the cold rolling mill, only the reference numeral 2 itself is used for the rolling stands 2. Partially, however, the reference numeral 2 - separated by a hyphen - a digit or letter n readjusted.
  • "2-1" denotes the rolling mill 1 first passed through by the cold-rolled strip 1
  • "2-2" the rolling mill etc. next passed by the cold-rolled strip 1
  • “2-n” denotes the rolling stand of the cold rolling line last passed by the cold strip 1.
  • the shorter notation will be referred to briefly as the first rolling stand, the second rolling stand, etc. up to and including the last rolling stand, because of the respective rolling stands 2-1, 2-2, etc.
  • the cold rolling mill is preceded by a strip feeding device 3, via which the cold strip 1 is fed to the first rolling stand 2-1.
  • the tape feeder 3 is according to FIG. 1 designed as a rewinder.
  • the speed detection device 4 an actual speed v is detected by measurement, with which the cold strip 1 from the speed detection device 4 upstream rolling stand 2 (here: the first rolling stand 2-1) expires.
  • the detected actual speed v is - with the exception of unavoidable measuring errors - directly with the actual speed the cold strip 1 identical.
  • the actual speed v is, in particular, not a roller peripheral speed vU of the upstream rolling stand 2, that is to say a size that is linked to the actual speed of the cold strip 1 only via an overfeed. Also, it is not a roller peripheral speed vU 'of a downstream roll stand 2, according to FIG. 1 Rolling mill 2-2.
  • the design of the speed detection device 4 can be made as needed.
  • a role are employed on the cold strip 1, which runs along with the cold strip 1 and whose speed is detected, for example by means of a pulser.
  • Optical measuring methods in particular laser measuring methods, are also known.
  • the same rolling mill 2-1 is further downstream of a thickness detection device 5.
  • a strip thickness d is detected by measurement, with which the cold strip 1 from the thickness detection device 5 upstream rolling stand 2 (here: the first rolling stand 2-1) expires.
  • the control device 6 can correspond to FIG. 1 implement an underlying controller structure in the simplest case: an external setpoint-actual controller determines the setpoint vU * for the roller peripheral speed vU based on the difference between the actual speed v of the cold strip 1 and the corresponding setpoint speed v *, an internal controller regulates the difference of the setpoint vU * for the roller peripheral speed vU and the roller peripheral speed vU itself, the roller circumferential speed vU.
  • the procedure is different. The preferred procedure is described below in connection with FIG. 2 explained in more detail.
  • the reciprocal of the overfeed a is fed to a multiplier 8, which determines the corresponding desired value vU * for the circumferential roll speed vU on the basis of the setpoint speed v * of the cold strip 1.
  • FIG. 2 is determined on the basis of the comparison of target speed v * and actual speed v of the cold strip 1 - in particular on the basis of the difference - a correction factor k, based on which the roll gap model 7 is adapted. Due to the adaptation of the roll gap model 7, the overfeed a determined by the roll gap model 7 changes (inter alia). The tracking of the target value vU * for the circumferential roll speed vU is performed according to FIG. 2 Thus realized indirectly, namely the fact that the roll gap model 7 on the basis of the comparison of the actual speed v of the cold strip 1 with the target speed v * is adapted.
  • the control device 6 can be implemented in individual cases circuit technology. In general, the control device 6, however, according to the illustration of FIG. 1 designed as a software programmable controller 6. This is in FIG. 1 indicated by the letters " ⁇ P" (for microprocessor). In this case, the control device 6 executes a computer program 10 with which the control device 6 is programmed.
  • the computer program 10 has according to FIG. 1 Machine code 11, which is directly executable by the control device 6.
  • executing the machine code 11 by the controller 6 causes the controller 6 to control the cold rolling line according to the above-explained control method.
  • the computer program 10 can be supplied to the control device 6 in any manner.
  • a supply via a computer-computer connection is possible.
  • suitable computer-computer connections are a local area network (LAN) and the World Wide Web.
  • LAN local area network
  • LAN local area network
  • a data carrier 12 on which the computer program 10 is stored in machine-readable form.
  • suitable data carriers 12 are a CD-ROM, a USB memory stick or an SD memory card.
  • the data carrier 12 is designed as a USB memory stick.
  • the present invention has many advantages.
  • a defined mass flow and at the same time a correct strip thickness can be achieved in a simple manner. Therefore, it is only necessary for the roll stands 2, which are arranged downstream of the roll stand 2-1 regulated according to the invention, to correctly set the roll peripheral speed vU 'of the respective roll stand 2.
  • This can alternatively take place in that behind the respective rolling stand 2 (for example, the second rolling stand 2-2) by means of a corresponding speed detection device 13, the actual Actual speed is detected and controlled behind this rolling stand 2 or that over a corresponding roll gap model, the respective overfeed is modeled and in this rolling stand 2-2 outlet side desired belt speed is converted into the corresponding circumferential roll speed vU '.
  • a conventional monitor control for the last fine correction of the final strip thickness that is, for the strip thickness of the cold strip 1 behind the last roll stand 2-n
  • the regulation of the mass flow according to the invention shows its advantages not only under static operating conditions, but above all under dynamically changing operating conditions such as, for example, the threading operation, the passage of a weld seam or the changing of the setpoint speed v *. It also results in these operating conditions improved dimensional accuracy of the final strip thickness. Furthermore, the extent of the required adaptation of the roll gap model 7 is a direct indication of the quality of the roll gap model 7. This indication can also be used generally for the optimization of process models for the cold rolling mill. The dynamic of the control is limited - even in dynamic operating conditions - only by the speed of the cruise control. Furthermore, a continuation of the operation of the cold rolling mill is possible even in case of failure of the speed detection.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
EP09170489A 2009-09-17 2009-09-17 Train de laminoir à froid doté d'une régulation du débit massique sur une cage de laminoir Withdrawn EP2298461A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP09170489A EP2298461A1 (fr) 2009-09-17 2009-09-17 Train de laminoir à froid doté d'une régulation du débit massique sur une cage de laminoir
BR112012006033A BR112012006033A2 (pt) 2009-09-17 2010-09-10 trem de laminação a frio caracterizando a regulação da taxa do fluxo de massa sobre um cilindro de ajuste.
RU2012111278/02A RU2518831C2 (ru) 2009-09-17 2010-09-10 Холоднопрокатный стан с регулированием массового потока на прокатной клети
EP10754464.5A EP2477763B1 (fr) 2009-09-17 2010-09-10 Train de laminoir à froid doté d'une régulation du débit massique sur une cage de laminoir
CN201080041410.0A CN102481608B (zh) 2009-09-17 2010-09-10 在轧制机架上具有质量流调节的冷轧机列
PCT/EP2010/063277 WO2011032888A1 (fr) 2009-09-17 2010-09-10 Train de laminage à froid à régulation de débit massique sur une cage de laminoir
PL10754464T PL2477763T3 (pl) 2009-09-17 2010-09-10 Zespół walcowniczy do walcowania na zimno z regulowaniem strumienia masy na klatce walcowniczej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09170489A EP2298461A1 (fr) 2009-09-17 2009-09-17 Train de laminoir à froid doté d'une régulation du débit massique sur une cage de laminoir

Publications (1)

Publication Number Publication Date
EP2298461A1 true EP2298461A1 (fr) 2011-03-23

Family

ID=41796456

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09170489A Withdrawn EP2298461A1 (fr) 2009-09-17 2009-09-17 Train de laminoir à froid doté d'une régulation du débit massique sur une cage de laminoir
EP10754464.5A Active EP2477763B1 (fr) 2009-09-17 2010-09-10 Train de laminoir à froid doté d'une régulation du débit massique sur une cage de laminoir

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10754464.5A Active EP2477763B1 (fr) 2009-09-17 2010-09-10 Train de laminoir à froid doté d'une régulation du débit massique sur une cage de laminoir

Country Status (6)

Country Link
EP (2) EP2298461A1 (fr)
CN (1) CN102481608B (fr)
BR (1) BR112012006033A2 (fr)
PL (1) PL2477763T3 (fr)
RU (1) RU2518831C2 (fr)
WO (1) WO2011032888A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2581142A1 (fr) * 2011-10-13 2013-04-17 Siemens Aktiengesellschaft Procédé de détermination d'une vitesse de produits à laminer
EP4360770A1 (fr) * 2022-10-25 2024-05-01 SMS Group GmbH Procédé et programme informatique pour adapter la valeur d'épaisseur théorique pour le réglage de l'épaisseur d'une bande à neuf cylindres pour au moins une cage de laminoir

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10799924B2 (en) 2017-08-01 2020-10-13 Sms Group Gmbh Mass flow regulation in roller devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0857509A (ja) * 1994-08-22 1996-03-05 Toshiba Corp タンデム圧延機の制御装置
JP2004268084A (ja) * 2003-03-07 2004-09-30 Jfe Steel Kk タンデム圧延機の板厚制御方法
WO2009095323A1 (fr) 2008-01-31 2009-08-06 Siemens Aktiengesellschaft Procédé de régulation pour un train de laminoir à froid avec régulation intégrale du débit massique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU500841A1 (ru) * 1974-03-04 1976-01-30 Свердловское Отделение Государственного Проектного Института "Проектмонтажавтоматика" Устройство дл автоматического регулировани толщины и обжати полосы на стане холодной прокатки
JP3114943B2 (ja) * 1991-06-03 2000-12-04 川崎製鉄株式会社 圧延機における圧延材の板厚制御方法
JPH05169126A (ja) * 1991-12-26 1993-07-09 Siemens Ag コールドストリップ圧延設備のための制御方法
JP3147265B2 (ja) * 1993-05-28 2001-03-19 川崎製鉄株式会社 連続圧延機の速度制御方法
RU2193937C1 (ru) * 2001-04-23 2002-12-10 Открытое акционерное общество "Уральский завод тяжелого машиностроения" Способ управления внутренней клетью непрерывного стана холодной прокатки полосы
JP3947116B2 (ja) * 2003-02-26 2007-07-18 東芝三菱電機産業システム株式会社 連続圧延機の走間板厚変更装置
JP4413984B2 (ja) * 2006-11-20 2010-02-10 三菱日立製鉄機械株式会社 冷間圧延材製造設備および冷間圧延方法
DE102007049062B3 (de) * 2007-10-12 2009-03-12 Siemens Ag Betriebsverfahren zum Einbringen eines Walzguts in ein Walzgerüst eines Walzwerks, Steuereinrichtung und Walzwerk zum Walzen eines bandförmigen Walzgutes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0857509A (ja) * 1994-08-22 1996-03-05 Toshiba Corp タンデム圧延機の制御装置
JP2004268084A (ja) * 2003-03-07 2004-09-30 Jfe Steel Kk タンデム圧延機の板厚制御方法
WO2009095323A1 (fr) 2008-01-31 2009-08-06 Siemens Aktiengesellschaft Procédé de régulation pour un train de laminoir à froid avec régulation intégrale du débit massique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2581142A1 (fr) * 2011-10-13 2013-04-17 Siemens Aktiengesellschaft Procédé de détermination d'une vitesse de produits à laminer
WO2013053549A1 (fr) * 2011-10-13 2013-04-18 Siemens Aktiengesellschaft Procédé de détermination de la vitesse d'un produit laminé
CN103874551B (zh) * 2011-10-13 2016-05-11 西门子公司 用于测定轧件速度的方法
EP4360770A1 (fr) * 2022-10-25 2024-05-01 SMS Group GmbH Procédé et programme informatique pour adapter la valeur d'épaisseur théorique pour le réglage de l'épaisseur d'une bande à neuf cylindres pour au moins une cage de laminoir

Also Published As

Publication number Publication date
EP2477763B1 (fr) 2014-04-30
BR112012006033A2 (pt) 2019-09-24
PL2477763T3 (pl) 2014-10-31
RU2518831C2 (ru) 2014-06-10
RU2012111278A (ru) 2013-10-27
WO2011032888A1 (fr) 2011-03-24
CN102481608A (zh) 2012-05-30
EP2477763A1 (fr) 2012-07-25
CN102481608B (zh) 2014-07-02

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