EP0876857A2 - Procédé pour influencer le profil dans la zone des bords d'une bande laminée - Google Patents

Procédé pour influencer le profil dans la zone des bords d'une bande laminée Download PDF

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Publication number
EP0876857A2
EP0876857A2 EP98108139A EP98108139A EP0876857A2 EP 0876857 A2 EP0876857 A2 EP 0876857A2 EP 98108139 A EP98108139 A EP 98108139A EP 98108139 A EP98108139 A EP 98108139A EP 0876857 A2 EP0876857 A2 EP 0876857A2
Authority
EP
European Patent Office
Prior art keywords
roll
cvc
rolling
crown
roller
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Withdrawn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
EP98108139A
Other languages
German (de)
English (en)
Other versions
EP0876857A3 (fr
Inventor
Dieter Rosenthal
Jürgen Seidel
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
Original Assignee
SMS Schloemann Siemag AG
SMS Demag AG
Schloemann Siemag 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 SMS Schloemann Siemag AG, SMS Demag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0876857A2 publication Critical patent/EP0876857A2/fr
Publication of EP0876857A3 publication Critical patent/EP0876857A3/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Withdrawn legal-status Critical Current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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • 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
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • B21B2027/022—Rolls having tapered ends

Definitions

  • the invention relates to a method for influencing the Strip contour in the edge area of a rolled strip, in which Overlaying a conventional CVC cut the annoying Side effect of a tapered roller on one side Body area of the roll gap is compensated.
  • the well-known tapered roller with one-sided cone is used for Rolling flat strips to influence the strip contour in the Edge area of a rolled strip.
  • the Tapered area of the work roll near the belt edge positioned so that it follows it.
  • strips are used rolled in different widths and the rolling programs put together more and more freely. Also for use in A cold road is sought, if possible only one Roll type for different rolling stock widths and Use rolling conditions.
  • the Invention the object of specifying a method with which determines a roll shape in which the influence of a Axial adjustment of a roller with a tapered end on the elastic behavior of the roller set in the sense of a unwanted changes in the body roll gap can be compensated can be done without costly facilities or Action is needed.
  • a roller is used in the edge area understood a profiling based on a tapered end transitioning with steady course Diameter differences of a continuously variable crown (CVC) has, which according to the invention such a profile in has axial direction that in their axial displacement the triggered undesirable part of the effect of the conical Rejuvenation, i.e. Change in the elastic behavior of the Roll set is compensated, preferably at least to the extent that additional usual actuators and Measures such as redistribution of the rolling force or roll bending are sufficient to have the desired geometry of the roll gap maintain a wide range of a rolling program can, with the ultimate goal, unwanted profile shapes and To avoid unplannedness.
  • CVC continuously variable crown
  • An embodiment of the method according to the invention provides before that in addition to compensating for the effect of conical taper further from the width of the rolled stock and dependent on the assignable sliding positions of the work rolls Effects that result from the rolling program, such as target profile of the rolling stock, thickness and strength, as well as the resulting Rolling force level, are taken into account.
  • the method further provides that by adding both Effects of those necessary to compensate them Total CVC offset of the work roll is determined.
  • This special CVC roller has a positive effect on that Scaffolding behavior and the belt run.
  • the Work roll bending remains in the permissible range and is from Presetting tasks at least largely relieved and is therefore available for online regulation, which is also the Band quality positively influenced.
  • Figures 1 and 2 show unloaded roller sets in different sliding positions (SPOS), the Tapering of the work rolls (1, 2) on the rolled strip edges are aligned. It can be seen that the Nails shift only the work rolls (1, 2) concern, but not the support rollers (3, 4).
  • Figure 3.1 shows a rolling program structure over a number of coils with widths between B 1 and B 2 , corresponding to Figures 1 and 2, the ordinate indicating the width and the abscissa the number of coils.
  • the associated sliding positions for the different bandwidths are shown in the form of a diagram in FIG. 3.2.
  • the sliding positions on the ordinate are between a maximum plus SPOS max and a maximum minus SPOS min , measured from the zero line. These include widths of the rolled strip between B 1 and B 2 .
  • AW crown work roll crown
  • STW backup roll
  • Figure 3.4 shows curves for the CVC offset to the effect the conical taper between work rolls (1, 2) and Back-up rollers (3, 4) to compensate.
  • the ordinate represents the work roll crow and the abscissa the work roll shift position
  • the upper characteristic with the mark A relates only to the required CVC offset to compensate for the effect of the conical taper between AW and STW alone.
  • the lower characteristic curve with the designation B indicates the optimal total CVC offset below Taking additional influencing factors into account accordingly Claims 3 and 4.
  • Figure 4 indicates the required in the diagram of part I.
  • the contour in the Area II is comparatively flat.
  • the cut point (CP) is dependent on the width structure of a rolling program or Width application area determined.
  • the steepness of the tapered area results in particular from the extreme rolling force and the strip thickness of the respective stand.
  • OS the operator side and with DS the operator side referred to the roller.
  • the roller profile is on the ordinate given based on the roll diameter; the abscissa there the dimensionless length of the roller.
  • FIG. 5 shows the shape of a CVC offset with a setting range for the work roll crown between CRA (SPOS min ) and CRA (SPOS max ) in accordance with the characteristic curve B in FIG. 3.4.
  • the curve shown relates exclusively to the CVC contour (axis information as in FIG. 4).
  • FIG. 6 shows a profile which results from the sum of the tapered portion and the CVC offset. (Axis information as Fig. 4).
  • Figure 7 shows the profile curve with the proportions I before and II after the cut point (CP), as a sum of tapered Proportion and CVC offset after optimizing the body wedge proportion. (Axis information as Fig. 4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Control Of Metal Rolling (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Chemical Vapour Deposition (AREA)
EP98108139A 1997-05-08 1998-05-05 Procédé pour influencer le profil dans la zone des bords d'une bande laminée Withdrawn EP0876857A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19719318 1997-05-08
DE19719318A DE19719318C2 (de) 1997-05-08 1997-05-08 Verfahren zur Beeinflussung der Bandkontur im Kantenbereich eines Walzenbandes

Publications (2)

Publication Number Publication Date
EP0876857A2 true EP0876857A2 (fr) 1998-11-11
EP0876857A3 EP0876857A3 (fr) 2000-01-12

Family

ID=7828907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98108139A Withdrawn EP0876857A3 (fr) 1997-05-08 1998-05-05 Procédé pour influencer le profil dans la zone des bords d'une bande laminée

Country Status (10)

Country Link
US (1) US5943896A (fr)
EP (1) EP0876857A3 (fr)
KR (1) KR19980086866A (fr)
CN (1) CN1198967A (fr)
AR (1) AR015115A1 (fr)
BR (1) BR9801600A (fr)
CA (1) CA2237022A1 (fr)
DE (1) DE19719318C2 (fr)
ID (1) ID20666A (fr)
TW (1) TW407069B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010069575A2 (fr) 2008-12-18 2010-06-24 Sms Siemag Ag Procédé d'étalonnage de deux cylindres de travail coopérant entre eux dans une cage de laminoir

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409229B (de) * 1998-04-29 2002-06-25 Voest Alpine Ind Anlagen Verfahren zur verbesserung der kontur gewalzten materials und zur erhöhung der gewalzten materiallänge
US6220071B1 (en) 2000-01-20 2001-04-24 Mill Design & Consulting Services, Llc Method and apparatus for controlling strip edge relief in a cluster rolling mill
JP3747786B2 (ja) 2001-02-05 2006-02-22 株式会社日立製作所 板材用圧延機の圧延方法及び板材用圧延設備
DE10218234A1 (de) * 2002-04-24 2003-11-06 Sms Demag Ag Walzeinrichtung mit einer Anzahl von in einem Walzgerüst angeordneten Arbeitswalzen
DE10352546A1 (de) * 2003-09-04 2005-03-31 Sms Demag Ag Verfahren und Vorrichtung zum Aufbringen einer regelbaren Zugspannungsverteilung, insbesondere in den Kantenbereichen kaltgewalzter Metallbänder
DE10359402A1 (de) 2003-12-18 2005-07-14 Sms Demag Ag Optimierte Verschiebestrategien als Funktion der Bandbreite
US7823428B1 (en) * 2006-10-23 2010-11-02 Wright State University Analytical method for use in optimizing dimensional quality in hot and cold rolling mills
JP5365020B2 (ja) * 2008-02-08 2013-12-11 株式会社Ｉｈｉ 圧延機
US8607847B2 (en) * 2008-08-05 2013-12-17 Nucor Corporation Method for casting metal strip with dynamic crown control
US8607848B2 (en) * 2008-08-05 2013-12-17 Nucor Corporation Method for casting metal strip with dynamic crown control
DE102010014867A1 (de) * 2009-04-17 2010-11-18 Sms Siemag Ag Verfahren zum Bereitstellen mindestens einer Arbeitswalze zum Walzen eines Walzguts
CN102029294B (zh) * 2009-09-28 2013-06-19 宝山钢铁股份有限公司 冷轧带钢横向厚差控制方法
CN101690948B (zh) * 2009-10-10 2011-01-19 北京理工大学 一种双机架中厚板生产线压下负荷分配方法
US8505611B2 (en) 2011-06-10 2013-08-13 Castrip, Llc Twin roll continuous caster
CN104772339B (zh) * 2014-01-15 2017-01-18 宝山钢铁股份有限公司 提高钢板边缘降控制过程中轧制稳定性的方法
CN107537858A (zh) * 2017-09-18 2018-01-05 攀钢集团攀枝花钢钒有限公司 利用小辊径轧辊轧制超宽带钢的生产方法
CN108788941B (zh) * 2018-07-06 2020-10-02 攀钢集团西昌钢钒有限公司 一种cvc轧辊的磨削方法
EP3685930B1 (fr) * 2019-01-28 2021-11-24 Primetals Technologies Germany GmbH Changement local de la fente de laminage dans la zone marginale d'une bande laminée
WO2020156787A1 (fr) 2019-01-28 2020-08-06 Primetals Technologies Germany Gmbh Modification du contour effectif d'une surface de roulement d'un cylindre de travail pendant le laminage à chaud d'un produit à laminer dans une cage de laminoir en une bande laminée
CN112808780A (zh) * 2020-12-31 2021-05-18 浦项(张家港)不锈钢股份有限公司 一种冷轧机压延目标厚度的计算方法
CN113263060B (zh) * 2021-04-25 2023-01-20 北京科技大学设计研究院有限公司 改善带钢局部凸起提升工作辊轧制公里数的窜辊控制方法

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Publication number Priority date Publication date Assignee Title
US4881396A (en) * 1987-04-09 1989-11-21 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill stand with axially slidable rolls
JPH05177218A (ja) * 1992-01-07 1993-07-20 Nippon Steel Corp 圧延機
JPH0768307A (ja) * 1993-08-31 1995-03-14 Kobe Steel Ltd 板クラウン推定方法
JPH081217A (ja) * 1994-06-10 1996-01-09 Nippon Steel Corp 連続圧延機での初期ロールカーブ設定方法
JPH0824919A (ja) * 1994-07-08 1996-01-30 Ishikawajima Harima Heavy Ind Co Ltd ロールシフトとロールベンドを併用した圧延方法と圧延機

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US4881396A (en) * 1987-04-09 1989-11-21 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill stand with axially slidable rolls
JPH05177218A (ja) * 1992-01-07 1993-07-20 Nippon Steel Corp 圧延機
JPH0768307A (ja) * 1993-08-31 1995-03-14 Kobe Steel Ltd 板クラウン推定方法
JPH081217A (ja) * 1994-06-10 1996-01-09 Nippon Steel Corp 連続圧延機での初期ロールカーブ設定方法
JPH0824919A (ja) * 1994-07-08 1996-01-30 Ishikawajima Harima Heavy Ind Co Ltd ロールシフトとロールベンドを併用した圧延方法と圧延機

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010069575A2 (fr) 2008-12-18 2010-06-24 Sms Siemag Ag Procédé d'étalonnage de deux cylindres de travail coopérant entre eux dans une cage de laminoir
DE102009030792A1 (de) 2008-12-18 2010-06-24 Sms Siemag Ag Verfahren zum Kalibrieren zweier zusammenwirkender Arbeitswalzen in einem Walzgerüst
US8939009B2 (en) 2008-12-18 2015-01-27 Sms Siemag Aktiengesellschaft Method for calibrating two interacting working rollers in a rolling stand

Also Published As

Publication number Publication date
CN1198967A (zh) 1998-11-18
TW407069B (en) 2000-10-01
DE19719318A1 (de) 1998-11-12
AR015115A1 (es) 2001-04-18
US5943896A (en) 1999-08-31
BR9801600A (pt) 1999-06-01
CA2237022A1 (fr) 1998-11-08
DE19719318C2 (de) 2003-06-12
EP0876857A3 (fr) 2000-01-12
ID20666A (id) 1999-02-11
KR19980086866A (ko) 1998-12-05

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