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US20080223100A1 - Method and Apparatus for Producing Strip Having a Variable Thickness - Google Patents

Method and Apparatus for Producing Strip Having a Variable Thickness Download PDF

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Publication number
US20080223100A1
US20080223100A1 US11/913,839 US91383906A US2008223100A1 US 20080223100 A1 US20080223100 A1 US 20080223100A1 US 91383906 A US91383906 A US 91383906A US 2008223100 A1 US2008223100 A1 US 2008223100A1
Authority
US
United States
Prior art keywords
strip
speed
tension
mill
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.)
Abandoned
Application number
US11/913,839
Other languages
English (en)
Inventor
Willem Cornelis Verloop
Ralf Christian Octavie Gerardus Prevaas
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.)
Tata Steel Ijmuiden BV
Original Assignee
Corus Staal BV
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 Corus Staal BV filed Critical Corus Staal BV
Assigned to CORUS STAAL BV reassignment CORUS STAAL BV ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PREVAAS, RALF CHRISTIAN OCTAVIE GERARDUS, VERLOOP, WILLEM CORNELIS
Publication of US20080223100A1 publication Critical patent/US20080223100A1/en
Assigned to TATA STEEL IJMUIDEN B.V. reassignment TATA STEEL IJMUIDEN B.V. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: CORUS STAAL B.V.
Abandoned 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
    • 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
    • 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
    • B21B37/48—Tension control; Compression control
    • B21B37/50—Tension control; Compression control by looper control

Definitions

  • the rolling speed of the rolls of the stand of the rolling mill is the reference speed for the rolling, which stand speed is controlled by a speed controller.
  • the speed of the other mill equipment, such as the coiler and decoiler is controlled using the stand speed as input.
  • tension controllers measuring the tension in the strip change the reference rotational speed of the coiler and decoiler relative to the stand speed. The speed of the strip entering the mill and the speed of the strip leaving the mill will change accordingly.
  • This method uses a control mechanism using the speed of the strip leaving the mill stand to control the speed of the rolls in the mill stand, which makes it more easy to control the rolling mill.
  • the change in speed of the strip leaving the mill stand when the thickness of the strip leaving the mill is changed is now used to control the change in speed of the rolls in the mill stand.
  • the speed changes upstream of the strip leaving the rolling mill are thus more naturally a result of the change in speed due to the change in thickness of the strip.
  • the speed of the strip leaving the mill stand is kept approximately constant.
  • the constant speed of the strip leaving the roll stand also provides a natural change in the speed of the rolls in the roll stand when the thickness D 2 of the strip is changed; for instance, when the thickness D 2 of the strip leaving the roll stand is reduced and the speed of this strip is kept constant, the speed of the strip entering the mill stand must be reduced. This means that the rolling speed of the rolls in the mill stand must be reduced, which is in line with the higher rolling torque required for rolling the strip to the reduced thickness D 2 .
  • Another program is provided for controlling the speed of the strip when entering the mill stand.
  • This program can change the speed of the strip entering the mill stand when the gap of the mill stand is changed.
  • the speed of the upstream equipment is changed to change the speed of the strip entering the mill stand.
  • a decoiler is used to supply the strip to the rolling mill and a coiler is used to take up the rolled strip, wherein a first tension measuring device is present to measure the tension in the strip entering the rolling mill and a second tension measuring device is present to measure the tension in the strip leaving the rolling mill, wherein a speed measuring device is present to control the speed of the strip leaving the rolling mill, wherein the speed and tension measured with the speed measuring device and the second tension measuring device are used as input to control the rolling speed of the rolling mill.
  • the control of the rolling mill for rolling a strip having a variable thickness is easy and straightforward, since the control uses the speed and tension of the strip leaving the rolling mill, and the measuring devices for measuring this speed and tension are state of the art.
  • the speed and tension measured with the speed measuring device, the first tension measuring device and the second tension measuring device are used as input to control the tension in the strip entering the rolling mill using a dancer or equivalent equipment between the decoiler and the rolling mill.
  • the same measurements together with the measurement of the tension using the first tension measuring device can be used to control the entrance speed of the strip in the rolling mill.
  • the speed and tension measured with the speed measuring device, the first tension measuring device and the second tension measuring device are used as input to control the decoiling speed of the decoiler. All the important equipment upstream of the produced strip is thus controlled using these measurements.
  • the rolling mill used is a single stand rolling mill.
  • a single stand rolling mill makes the control of the rolling mill easier, since a mill having two or more stands requires a very accurate control of the stands in relation to each other, or requires the use of loopers between the stands.
  • an apparatus for producing strip having a variable thickness in its length direction comprising a stand of a rolling mill, upstream equipment, downstream equipment, a tension measuring device for measuring the tension in the strip leaving the mill stand and/or a speed measuring device for controlling the speed of the strip leaving the mill stand, wherein a dancer or looper or equivalent equipment has been placed between the upstream equipment and the mill stand to accommodate changes in strip length, and wherein no dancer or looper or equivalent equipment has been placed between the mill stand and the downstream equipment.
  • the apparatus it is possible to produce strip having a variable thickness in a well controlled way according to the first aspect of the invention.
  • the apparatus is more simple than the known apparatus for producing strip having a variable thickness, because only one dancer or looper needs to be used.
  • a further tension measuring device has been provided for measuring the tension in the strip entering the mill stand.
  • the further tension measuring device can be used to control the dancer or looper or equivalent equipment between the upstream equipment and the mill stand and the upstream equipment, such as a decoiler.
  • the coiling speed is kept constant and the driving system of the rolling stand is decelerated, so as to keep the speed difference in the coiler to a minimum.
  • the driving system of the rolling mill is usually heavier than the drive of a coiler, and the inertia of such a driving system can be approximately 600 kgm 2 .
  • the required deceleration is the same as the acceleration of the coiler. When a work roll diameter of 300 mm is used, the deceleration needs 8000 Nm less torque. On the other hand, for the increased reduction in the strip leaving the rolling mill extra torque is needed. These changes in torque will balance each other more or less, resulting in an approximately even torque needed for the driving system of the rolling mill when producing strip having a variable thickness in length direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
US11/913,839 2005-05-11 2006-05-11 Method and Apparatus for Producing Strip Having a Variable Thickness Abandoned US20080223100A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05076114.7 2005-05-11
EP05076114 2005-05-11
PCT/EP2006/004453 WO2006119998A1 (fr) 2005-05-11 2006-05-11 Procede et appareil permettant de produire une bande a epaisseur variable

Publications (1)

Publication Number Publication Date
US20080223100A1 true US20080223100A1 (en) 2008-09-18

Family

ID=35063079

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/913,839 Abandoned US20080223100A1 (en) 2005-05-11 2006-05-11 Method and Apparatus for Producing Strip Having a Variable Thickness

Country Status (3)

Country Link
US (1) US20080223100A1 (fr)
EP (1) EP1893361A1 (fr)
WO (1) WO2006119998A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100218576A1 (en) * 2007-10-12 2010-09-02 Hans-Joachim Felkl Operating method for introducing a product to be rolled into a roll stand of a roll mill, control device, data carrier, and roll mill for rolling a strip-type product to be rolled
CN104084448A (zh) * 2014-06-16 2014-10-08 中国重型机械研究院股份公司 一种用于重卷剖分机组双卷取机的同步控制系统
CN104338752A (zh) * 2013-07-24 2015-02-11 宝山钢铁股份有限公司 一种变厚度轧制时的长度控制方法
CN104338748A (zh) * 2013-07-24 2015-02-11 宝山钢铁股份有限公司 一种用于变厚度带材轧制的两道次轧制方法
US20150040631A1 (en) * 2007-11-07 2015-02-12 The Bradbury Company, Inc. Methods to drive material conditioning machines
CN104690094A (zh) * 2015-03-20 2015-06-10 北京汽车股份有限公司 一种连续变厚度板的成型方法
CN106623440A (zh) * 2016-12-05 2017-05-10 重集团大连设计研究院有限公司 一种变断面冷轧板轧制方法及装置
US10252306B2 (en) 2010-10-06 2019-04-09 The Bradbury Company, Inc. Apparatus and methods to increase the efficiency of roll-forming and leveling systems
US10618107B2 (en) 2016-04-14 2020-04-14 GM Global Technology Operations LLC Variable thickness continuous casting for tailor rolling
WO2020114976A1 (fr) 2018-12-06 2020-06-11 Sms Group Gmbh Procédé servant à faire fonctionner une cage de laminoir de laminage à gradins
JP2022105902A (ja) * 2021-01-05 2022-07-15 日本製鉄株式会社 処理装置、処理方法、およびプログラム
JP2023509217A (ja) * 2020-01-10 2023-03-07 ダニエリ アンド チ．オフィチーネ メカーニク エッセピア 板状の金属製品を製造するための方法および装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2257394B1 (fr) * 2008-01-30 2018-11-07 Tata Steel IJmuiden BV Procédé de fabrication d'un acier twip laminé à chaud et acier twip laminé à chaud fabriqué selon ce procédé
CN106391729B (zh) * 2016-11-04 2018-03-13 东北大学 一种采用plp带材定长传送的测量装置进行的测量方法
CN112605124B (zh) * 2020-11-27 2022-07-05 苏州吉润汽车零部件有限公司 一种连续变截面薄钢板的轧制设备及成型方法

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688532A (en) * 1970-11-24 1972-09-05 Antonio Vicente Silva Control system for tandem rolling mill based on the constant volume principle
US3744287A (en) * 1971-09-14 1973-07-10 Westinghouse Electric Corp Hydraulic interstand tension regulating and automatic gauge control system for multi-stand rolling mills
US3852983A (en) * 1973-04-25 1974-12-10 Westinghouse Electric Corp Work strip gauge change during rolling in a tandem rolling mill
US4248072A (en) * 1978-07-25 1981-02-03 Aichi Steel Works, Limited Method of and apparatus for producing plate material having uniform width and lengthwise thickness variation
US4341259A (en) * 1978-12-29 1982-07-27 W. F. Lauener Ag Method for speed control of a continuous metal strip casting machine and rolling mill arrangement, and system controlled according to this method
US4656856A (en) * 1985-10-23 1987-04-14 Bethlehem Steel Corporation Method and apparatus for eliminating crescent formation in a reduction mill
US4771621A (en) * 1985-07-25 1988-09-20 Mitsubishi Denki Kabushiki Kaisha Speed control apparatus for equipment for continuous processing of steel plates
US4907433A (en) * 1988-04-18 1990-03-13 Bethlehem Steel Corporation Apparatus and method for adaptive control of a rolling mill
US5103662A (en) * 1990-05-01 1992-04-14 Allegheny Ludlum Corporation Tandem rolling mill tension control with speed ratio error discrimination
US5718138A (en) * 1994-11-25 1998-02-17 Kabushiki Kaisha Toshiba Looper control system for a rolling mill
US5787746A (en) * 1994-07-25 1998-08-04 Alcan Aluminum Corporation Multi-stand hot rolling mill tension and strip temperature multivariable controller
US6263714B1 (en) * 1999-12-27 2001-07-24 Telepro, Inc. Periodic gauge deviation compensation system
US6606534B1 (en) * 1999-11-12 2003-08-12 Kabushiki Kaisha Toshiba Strip thickness control apparatus for rolling mill
US7185523B2 (en) * 2003-04-03 2007-03-06 Muhr Und Bender Kg Rolling process and rolling system for rolling metal strip

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114519A (en) * 1980-02-16 1981-09-09 Nippon Steel Corp Looper controller for continuous rolling mill
JPS59169614A (ja) * 1983-03-15 1984-09-25 Ishikawajima Harima Heavy Ind Co Ltd 先進率制御装置
JPH07251207A (ja) * 1994-03-16 1995-10-03 Mitsubishi Heavy Ind Ltd 圧延機
EP1035928A1 (fr) * 1997-11-07 2000-09-20 Siemens Aktiengesellschaft Procede et dispositif permettant de laminer une bande d'epaisseur variable
AU1315699A (en) 1997-11-12 1999-05-31 Life Technologies, Inc. Device and methods for purifying biological molecules using low volumes of chromatographic and adsorptive media
GB0114849D0 (en) 2001-06-18 2001-08-08 Pig Improvement Co Uk Ltd System
DE10133756A1 (de) * 2001-07-11 2003-01-30 Sms Demag Ag Kaltwalzwerk sowie Verfahren zum Kaltwalzen von metallischem Band
DE10310399B4 (de) * 2003-03-07 2005-03-03 Sundwig Gmbh Vorrichtung und Verfahren zum Walzen von Metallbändern

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688532A (en) * 1970-11-24 1972-09-05 Antonio Vicente Silva Control system for tandem rolling mill based on the constant volume principle
US3744287A (en) * 1971-09-14 1973-07-10 Westinghouse Electric Corp Hydraulic interstand tension regulating and automatic gauge control system for multi-stand rolling mills
US3852983A (en) * 1973-04-25 1974-12-10 Westinghouse Electric Corp Work strip gauge change during rolling in a tandem rolling mill
US4248072A (en) * 1978-07-25 1981-02-03 Aichi Steel Works, Limited Method of and apparatus for producing plate material having uniform width and lengthwise thickness variation
US4341259A (en) * 1978-12-29 1982-07-27 W. F. Lauener Ag Method for speed control of a continuous metal strip casting machine and rolling mill arrangement, and system controlled according to this method
US4771621A (en) * 1985-07-25 1988-09-20 Mitsubishi Denki Kabushiki Kaisha Speed control apparatus for equipment for continuous processing of steel plates
US4656856A (en) * 1985-10-23 1987-04-14 Bethlehem Steel Corporation Method and apparatus for eliminating crescent formation in a reduction mill
US4907433A (en) * 1988-04-18 1990-03-13 Bethlehem Steel Corporation Apparatus and method for adaptive control of a rolling mill
US5103662A (en) * 1990-05-01 1992-04-14 Allegheny Ludlum Corporation Tandem rolling mill tension control with speed ratio error discrimination
US5787746A (en) * 1994-07-25 1998-08-04 Alcan Aluminum Corporation Multi-stand hot rolling mill tension and strip temperature multivariable controller
US5718138A (en) * 1994-11-25 1998-02-17 Kabushiki Kaisha Toshiba Looper control system for a rolling mill
US6606534B1 (en) * 1999-11-12 2003-08-12 Kabushiki Kaisha Toshiba Strip thickness control apparatus for rolling mill
US6263714B1 (en) * 1999-12-27 2001-07-24 Telepro, Inc. Periodic gauge deviation compensation system
US7185523B2 (en) * 2003-04-03 2007-03-06 Muhr Und Bender Kg Rolling process and rolling system for rolling metal strip

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100218576A1 (en) * 2007-10-12 2010-09-02 Hans-Joachim Felkl Operating method for introducing a product to be rolled into a roll stand of a roll mill, control device, data carrier, and roll mill for rolling a strip-type product to be rolled
US9050637B2 (en) 2007-10-12 2015-06-09 Siemens Aktiengesellschaft Operating method for introducing a product to be rolled into a roll stand of a roll mill, control device, data carrier, and roll mill for rolling a strip-type product to be rolled
US20150040631A1 (en) * 2007-11-07 2015-02-12 The Bradbury Company, Inc. Methods to drive material conditioning machines
US10537923B2 (en) * 2007-11-07 2020-01-21 The Bradbury Company, Inc. Methods to drive material conditioning machines
US10252306B2 (en) 2010-10-06 2019-04-09 The Bradbury Company, Inc. Apparatus and methods to increase the efficiency of roll-forming and leveling systems
US11045850B2 (en) 2010-10-06 2021-06-29 The Bradbury Company, Inc. Apparatus and methods to increase the efficiency of roll-forming and leveling systems
CN104338752A (zh) * 2013-07-24 2015-02-11 宝山钢铁股份有限公司 一种变厚度轧制时的长度控制方法
CN104338748A (zh) * 2013-07-24 2015-02-11 宝山钢铁股份有限公司 一种用于变厚度带材轧制的两道次轧制方法
CN104084448A (zh) * 2014-06-16 2014-10-08 中国重型机械研究院股份公司 一种用于重卷剖分机组双卷取机的同步控制系统
CN104690094A (zh) * 2015-03-20 2015-06-10 北京汽车股份有限公司 一种连续变厚度板的成型方法
US10618107B2 (en) 2016-04-14 2020-04-14 GM Global Technology Operations LLC Variable thickness continuous casting for tailor rolling
CN106623440A (zh) * 2016-12-05 2017-05-10 重集团大连设计研究院有限公司 一种变断面冷轧板轧制方法及装置
WO2020114976A1 (fr) 2018-12-06 2020-06-11 Sms Group Gmbh Procédé servant à faire fonctionner une cage de laminoir de laminage à gradins
CN113226580A (zh) * 2018-12-06 2021-08-06 Sms集团有限公司 用于操纵用来阶梯式轧制的轧机机架的方法
JP2023509217A (ja) * 2020-01-10 2023-03-07 ダニエリ アンド チ．オフィチーネ メカーニク エッセピア 板状の金属製品を製造するための方法および装置
JP7404545B2 (ja) 2020-01-10 2023-12-25 ダニエリ アンド チ．オフィチーネ メカーニク エッセピア 板状の金属製品を製造するための方法および装置
JP2022105902A (ja) * 2021-01-05 2022-07-15 日本製鉄株式会社 処理装置、処理方法、およびプログラム
JP7518385B2 (ja) 2021-01-05 2024-07-18 日本製鉄株式会社 処理装置、処理方法、およびプログラム

Also Published As

Publication number Publication date
EP1893361A1 (fr) 2008-03-05
WO2006119998A1 (fr) 2006-11-16

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AS Assignment

Owner name: CORUS STAAL BV, NETHERLANDS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PREVAAS, RALF CHRISTIAN OCTAVIE GERARDUS;VERLOOP, WILLEM CORNELIS;REEL/FRAME:020891/0784;SIGNING DATES FROM 20071119 TO 20071121

AS Assignment

Owner name: TATA STEEL IJMUIDEN B.V., NETHERLANDS

Free format text: CHANGE OF NAME;ASSIGNOR:CORUS STAAL B.V.;REEL/FRAME:025742/0883

Effective date: 20100928

STCB Information on status: application discontinuation

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