US20110030433A1 - Rolling device and method for the operation thereof - Google Patents

Rolling device and method for the operation thereof Download PDF

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Publication number
US20110030433A1
US20110030433A1 US12/733,935 US73393508A US2011030433A1 US 20110030433 A1 US20110030433 A1 US 20110030433A1 US 73393508 A US73393508 A US 73393508A US 2011030433 A1 US2011030433 A1 US 2011030433A1
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US
United States
Prior art keywords
rolling
flatness
roll gap
rolling stock
rollers
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
US12/733,935
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English (en)
Inventor
Dietrich Mathweis
Hans-Peter Richter
Hartmut Pawelski
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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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20110030433A1 publication Critical patent/US20110030433A1/en
Assigned to SMS SIEMAG AKTIENGESELLSCHAFT reassignment SMS SIEMAG AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RICHTER, HANS-PETER, PAWELSKI, HARTMUT, MATHWEIS, DIETRICH
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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
    • 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
    • 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 rolling device according to the preamble of claim 1 and a method for operation thereof according to claim 5 .
  • Rolling devices have been known for a long time in the prior art.
  • such rolling devices are known in which a pair of working rollers is acted upon by at least two support rollers which are larger compared to the working rollers to absorb the rolling forces.
  • the flatness of the rolled material can vary, whereby a backward slip of material can occur directly in front of the rolling gap between the working rollers. If the backward slip of material cannot be compensated in good time and sufficiently accurately, non-uniformities occur in the flatness of the rolled material, which leads to loss of quality of the rolled material and has the result that the rolled material is possibly completely unsuitable for some applications.
  • Rolling devices are known in the prior art in which flatness measurements are carried out by means of tension rollers to determine the tensile stress distribution.
  • tension rollers are typically located far away from the working rollers so that the backward slip of material in front of the roll gap cannot thereby be reliably determined.
  • Such a rolling device has become known, for example, from EP 0 108 379 B1.
  • This document furthermore discloses sensors for measuring the thickness profiles, wherein these sensors also determine the thickness profile far away from the roll gap. The backslip of material also cannot be reliably detected thereby.
  • DE 27 43 130 discloses a rolling device with thickness measuring devices in front of and behind the roll gap, whereby a predefinable thickness tolerance can thereby be achieved.
  • the material backslip effect also cannot be eliminated thereby because the sensors are again also arranged far away from the roll gap.
  • a local thickness deviation can only be meaningful in conjunction with a precise profile reference. Any flatness can therefore not be sufficiently qualified.
  • a rolling device comprising a rolling device having at least two working rollers and a roll gap between the working rollers for guiding through and rolling a rolling stock such as, for example, a strip preferably of metal, and optionally an arrangement of support rollers, wherein furthermore at least one measuring device is provided for measuring a backslip of the rolling material of the rolling stock in front of the roll gap, wherein furthermore a control or regulating unit is provided which drives control members for adjusting the flatness of the rolling stock on the basis of the signals of the measuring device.
  • a flatness measuring device is furthermore provided after the roll gap, which device likewise provides signals for the control and regulating unit, whereupon these drive the control members for adjusting the flatness of the rolling stock in response to the signals of the measuring device and the flatness measuring device.
  • a control member for adjusting the flatness of the rolling stock is a control member for adjusting the inclination of the working rollers and/or the intermediate rollers and/or the support rollers, the flexure of the working rollers and/or the intermediate rollers and/or the support rollers, the axial displacement of the working rollers and/or the intermediate rollers, for example, within the framework of a continuously variable crown (CVC) displacement, a minimal quantity lubrication and/or a temperature control or temperature regulations of the strip and/or the working rollers.
  • CVC continuously variable crown
  • the at least one measuring device for measuring the backslip of the rolling material of the rolling stock before the roll gap is an optically or mechanically measuring device.
  • the object is achieved with regard to the method by a method for operating a rolling device according to claim 5 .
  • the advantages of this method correspond to the advantages specified above with reference to the device.
  • the at least one measuring device for measuring a backslip of the rolling material of the rolling stock before the roll gap optically or mechanically detects the backslip.
  • FIG. 1 shows a schematic diagram of a rolling device with measuring device.
  • FIG. 1 shows schematically a rolling device 1 comprising two working rollers 2 , 3 between which a roll gap 4 is provided and between which a rolling stock 5 such as, for example, a strip 6 or metal strips such as in particular a steel strip is rolled.
  • the working rollers 2 , 3 are each advantageously acted upon with support rollers 7 , 8 in a known manner.
  • a material backslip 10 can occur in the immediate vicinity of the roll gap 4 and in the rolling direction in front of the roll gap 4 , which backslip leads to deformations of the rolling stock and therefore causes flatness deficiencies of the rolling stock.
  • the backslip occurs because at least temporarily, more material of the rolling stock per unit time is transported or pressed in front of the roll gap that can be rolled and can pass through the roll gap during the same unit time.
  • the backslip occurs in areas of local drop in strip tension.
  • the device 1 furthermore comprises at least one measuring device 11 or at least one sensor which detects a material backslip 10 at the strip inlet of the roll gap.
  • This at least one measuring device 11 is a preferably mechanically measuring or contactless measuring sensor.
  • the contactless measuring sensor is preferably an optically measuring sensor which optically detects the partly only local material backslip 10 .
  • the backslip in the form of a local overreduction is visible as a decrease in strip tension in these areas extending as far as waviness in front of the roll gap and is detectable for the measuring device.
  • the sensor or the measuring device 11 is disposed on the inlet side of the roll gap 4 and preferably detects the material backslip 10 near the roll gap 4 or in the immediate vicinity of the roll gap 4 , for example, as a result of a surface variation of the rolling stock 5 such as the strip 6 .
  • the sensor is designed in such a manner that the measurement of the material backslip in front of the roll gap is carried out approximately in an area of one metre or less in front of the roll gap, wherein preferably a measurement of the material backslip in the area of about 200 to 300 mm in front of the roll gap is detected.
  • a flatness measuring device such as a flatness measuring roller 12 , which detects the flatness of the strip 6 behind the rolling device 1 with the roll gap 4 .
  • the signals of the sensor 11 for measurement of the backslip or the signals of the sensor 11 for measurement of the backslip and the flatness measuring device 12 are supplied to a control or regulating unit 13 which, with reference to the available input data, delivers at least one trigger signal 14 or a plurality of trigger signals for the control members 15 , 16 , 17 , 18 and 19 such as flatness control members of the rolling arrangement by which means the control members 15 , 16 , 17 , 18 and 19 are triggered to regulate or control the flatness of the rolling stock.
  • the signals of the sensors 10 and 11 are supplied to the control or regulating unit 13 , wherein a weighting can be carried out between the two sensors or their signals, which in each case can be acted upon by a pre-selectable additive addend and a multiplicative factor and/or individually or both signals can be acted upon with delay members and/or acted upon with filters.
  • a stable strip running can be achieved under stable rolling conditions wherein an intervention can be made promptly if a backslip 10 of the material of the rolling stock to be rolled is detected in front of the roll gap 4 .
  • promptly preferably means that the adjustment or control takes place in real time, that is without a large time delay, i.e. in the range of about 1 second or less, down to the range of fractions of a second time delay.
  • a run of 300 mm can take place in 0.3 seconds so that a rapid feedback in the range of tenths of a second or less is advantageous to correct the material backslip in front of the roll gap.
  • a rapid control intervention or adjustment intervention can be undertaken in the event of varying strip profile, with varying flatness for example at the beginning of the strip, at the strip end or at a weld seam.
  • the control members 15 to 19 are preferably control members for adjusting the inclination of the working rollers 2 , 3 and/or the support rollers 7 , 8 , the flexure of the work rollers 2 , 3 and/or intermediate rollers (sexto design) and/or the support rollers 7 , 8 , the axial displacement of the working rollers 2 , 3 and/or intermediate rollers (sexto design) within the framework of a so-called continuously variable crown (CVC) displacements, a minimal quantity lubrication or a temperature control or temperature regulation of the strip and/or the working rollers.
  • CVC continuously variable crown

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
US12/733,935 2007-09-26 2008-09-22 Rolling device and method for the operation thereof Abandoned US20110030433A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102007046189 2007-09-26
DE102007046189.7 2007-09-26
DE102008015828A DE102008015828A1 (de) 2007-09-26 2008-03-27 Walzvorrichtung und Verfahren für deren Betrieb
DE102008015828.3 2008-03-27
PCT/EP2008/007981 WO2009043501A1 (de) 2007-09-26 2008-09-22 Walzvorrichtung und verfahren für deren betrieb

Publications (1)

Publication Number Publication Date
US20110030433A1 true US20110030433A1 (en) 2011-02-10

Family

ID=40384509

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/733,935 Abandoned US20110030433A1 (en) 2007-09-26 2008-09-22 Rolling device and method for the operation thereof

Country Status (15)

Country Link
US (1) US20110030433A1 (ko)
EP (1) EP2195126B1 (ko)
JP (1) JP5490701B2 (ko)
KR (1) KR101185391B1 (ko)
CN (1) CN101808759B (ko)
AU (1) AU2008306213A1 (ko)
BR (1) BRPI0817341A2 (ko)
CA (1) CA2700752C (ko)
DE (1) DE102008015828A1 (ko)
ES (1) ES2394234T3 (ko)
MX (1) MX2010003239A (ko)
RU (1) RU2427437C1 (ko)
TW (1) TWI346587B (ko)
WO (1) WO2009043501A1 (ko)
ZA (1) ZA201000566B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170326986A1 (en) * 2014-10-02 2017-11-16 Ford Global Technologies, Llc Bus leakage resistance estimation for electrical isolation testing and diagnostics

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009060243A1 (de) 2009-12-23 2011-06-30 SMS Siemag Aktiengesellschaft, 40237 Planheitsbestimmung eines Metallbands durch Messung des Profils
AT513245B1 (de) * 2012-12-11 2014-03-15 Siemens Vai Metals Tech Gmbh Planheitsmessung und Messung der Eigenspannungen für ein metallisches Flachprodukt
CN104785542B (zh) * 2014-01-22 2016-10-05 宝山钢铁股份有限公司 一种粗轧机张力调节控制方法
JP7067541B2 (ja) * 2019-10-31 2022-05-16 Ｊｆｅスチール株式会社 圧延機の制御方法および制御装置

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US2883895A (en) * 1954-10-15 1959-04-28 Carl A Vossberg Rolling mill thickness control system
US4199967A (en) * 1977-11-09 1980-04-29 Mitsubishi Denki Kabushiki Kaisha Method of controlling a shape of a rolled sheet
US4269051A (en) * 1978-03-31 1981-05-26 Loewy Robertson Engineering Co. Ltd. Rolling mills and operation thereof
US4440012A (en) * 1980-10-15 1984-04-03 Sms Schloemann-Siemag Ag Rolling stand with noncylindrical rolls
US4625536A (en) * 1984-01-11 1986-12-02 Hitachi, Ltd. Method of controlling unequal circumferential speed rolling
US4771622A (en) * 1986-03-12 1988-09-20 International Rolling Mill Consultants Inc. Strip rolling mill apparatus
JPS63309315A (ja) * 1987-06-12 1988-12-16 Kawasaki Steel Corp 厚板圧延の自動板厚制御方法
US4981028A (en) * 1988-07-08 1991-01-01 Betriebsforschungsinstitut Vdeh Method for cold-rolling sheets and strips
US5509285A (en) * 1991-07-24 1996-04-23 Kabushiki Kaisha Toshiba Method and apparatus for measuring flatness and rolling control apparatus
US6070472A (en) * 1997-02-06 2000-06-06 Sms Schloemann-Siemag Aktiengesellschaft Planarity measuring roller
US6158260A (en) * 1999-09-15 2000-12-12 Danieli Technology, Inc. Universal roll crossing system
US6230532B1 (en) * 1999-03-31 2001-05-15 Kawasaki Steel Corporation Method and apparatus for controlling sheet shape in sheet rolling
US6374656B1 (en) * 1999-07-20 2002-04-23 Danieli & C. Officine Meccaniche S.P.A. Rolling stand for plane products and method to control the planarity of said products
US6438443B1 (en) * 1997-03-27 2002-08-20 Siemens Aktiengesellschaft Method and device for pre-setting the planeness of a roller strip
US6668626B2 (en) * 2001-03-01 2003-12-30 Abb Ab System and a method for measuring and determining flatness
US7093342B2 (en) * 2000-05-26 2006-08-22 Castrip Llc Hot rolling thin strip
US7305859B2 (en) * 2005-12-02 2007-12-11 Ishikawajima-Harima Heavy Industries Co., Ltd. Rolling mill
US7434435B2 (en) * 2003-09-04 2008-10-14 Sms Demag Ag Method and device for applying an adjustable tensile-stress distribution, in particular in the edge regions of cold-rolled metal strips
US20090049882A1 (en) * 2004-10-13 2009-02-26 Andreas Flick Process and apparatus for the continuous production of a thin metal strip
US20090282884A1 (en) * 2005-09-02 2009-11-19 Hartmut Pawelski Method for Lubricating and Cooling Rollers and Metal Strips On Rolling In Particular On Cold Rolling of Metal Strips
US7797974B2 (en) * 2004-07-06 2010-09-21 Sms Siemag Aktiengesellschaft Method and device for measuring and adjusting the evenness and/or tension of a stainless steel strip or stainless steel film during cold rolling in a 4-roll stand, particularly in a 20-roll sendzimir roll stand
US8050792B2 (en) * 2005-06-08 2011-11-01 Abb Ab Method and device for optimization of flatness control in the rolling of a strip

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2883895A (en) * 1954-10-15 1959-04-28 Carl A Vossberg Rolling mill thickness control system
US4199967A (en) * 1977-11-09 1980-04-29 Mitsubishi Denki Kabushiki Kaisha Method of controlling a shape of a rolled sheet
US4269051A (en) * 1978-03-31 1981-05-26 Loewy Robertson Engineering Co. Ltd. Rolling mills and operation thereof
US4440012A (en) * 1980-10-15 1984-04-03 Sms Schloemann-Siemag Ag Rolling stand with noncylindrical rolls
US4625536A (en) * 1984-01-11 1986-12-02 Hitachi, Ltd. Method of controlling unequal circumferential speed rolling
US4771622A (en) * 1986-03-12 1988-09-20 International Rolling Mill Consultants Inc. Strip rolling mill apparatus
JPS63309315A (ja) * 1987-06-12 1988-12-16 Kawasaki Steel Corp 厚板圧延の自動板厚制御方法
US4981028A (en) * 1988-07-08 1991-01-01 Betriebsforschungsinstitut Vdeh Method for cold-rolling sheets and strips
US5509285A (en) * 1991-07-24 1996-04-23 Kabushiki Kaisha Toshiba Method and apparatus for measuring flatness and rolling control apparatus
US6070472A (en) * 1997-02-06 2000-06-06 Sms Schloemann-Siemag Aktiengesellschaft Planarity measuring roller
US6438443B1 (en) * 1997-03-27 2002-08-20 Siemens Aktiengesellschaft Method and device for pre-setting the planeness of a roller strip
US6230532B1 (en) * 1999-03-31 2001-05-15 Kawasaki Steel Corporation Method and apparatus for controlling sheet shape in sheet rolling
US6374656B1 (en) * 1999-07-20 2002-04-23 Danieli & C. Officine Meccaniche S.P.A. Rolling stand for plane products and method to control the planarity of said products
US6158260A (en) * 1999-09-15 2000-12-12 Danieli Technology, Inc. Universal roll crossing system
US7093342B2 (en) * 2000-05-26 2006-08-22 Castrip Llc Hot rolling thin strip
US6668626B2 (en) * 2001-03-01 2003-12-30 Abb Ab System and a method for measuring and determining flatness
US7434435B2 (en) * 2003-09-04 2008-10-14 Sms Demag Ag Method and device for applying an adjustable tensile-stress distribution, in particular in the edge regions of cold-rolled metal strips
US7797974B2 (en) * 2004-07-06 2010-09-21 Sms Siemag Aktiengesellschaft Method and device for measuring and adjusting the evenness and/or tension of a stainless steel strip or stainless steel film during cold rolling in a 4-roll stand, particularly in a 20-roll sendzimir roll stand
US20090049882A1 (en) * 2004-10-13 2009-02-26 Andreas Flick Process and apparatus for the continuous production of a thin metal strip
US8050792B2 (en) * 2005-06-08 2011-11-01 Abb Ab Method and device for optimization of flatness control in the rolling of a strip
US20090282884A1 (en) * 2005-09-02 2009-11-19 Hartmut Pawelski Method for Lubricating and Cooling Rollers and Metal Strips On Rolling In Particular On Cold Rolling of Metal Strips
US8001820B2 (en) * 2005-09-02 2011-08-23 Sms Siemag Aktiengesellschaft Method for lubricating and cooling rollers and metal strips on rolling in particular on cold rolling of metal strips
US7305859B2 (en) * 2005-12-02 2007-12-11 Ishikawajima-Harima Heavy Industries Co., Ltd. Rolling mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170326986A1 (en) * 2014-10-02 2017-11-16 Ford Global Technologies, Llc Bus leakage resistance estimation for electrical isolation testing and diagnostics

Also Published As

Publication number Publication date
TWI346587B (en) 2011-08-11
BRPI0817341A2 (pt) 2015-03-31
ES2394234T3 (es) 2013-01-23
ZA201000566B (en) 2010-09-29
JP5490701B2 (ja) 2014-05-14
CA2700752A1 (en) 2009-04-09
MX2010003239A (es) 2010-04-21
DE102008015828A1 (de) 2009-04-02
AU2008306213A1 (en) 2009-04-09
EP2195126A1 (de) 2010-06-16
KR101185391B1 (ko) 2012-09-25
CA2700752C (en) 2012-07-24
CN101808759B (zh) 2012-11-28
RU2427437C1 (ru) 2011-08-27
WO2009043501A1 (de) 2009-04-09
CN101808759A (zh) 2010-08-18
KR20100039893A (ko) 2010-04-16
TW200914159A (en) 2009-04-01
EP2195126B1 (de) 2012-11-14
JP2010540250A (ja) 2010-12-24

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