EP1365869A1 - Cage de laminoir pour la production de feuillards lamines plans presentant un surhaussement de profil de feuillard desire - Google Patents

Cage de laminoir pour la production de feuillards lamines plans presentant un surhaussement de profil de feuillard desire

Info

Publication number
EP1365869A1
EP1365869A1 EP02702282A EP02702282A EP1365869A1 EP 1365869 A1 EP1365869 A1 EP 1365869A1 EP 02702282 A EP02702282 A EP 02702282A EP 02702282 A EP02702282 A EP 02702282A EP 1365869 A1 EP1365869 A1 EP 1365869A1
Authority
EP
European Patent Office
Prior art keywords
roll
work
rolls
work rolls
rolling mill
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.)
Granted
Application number
EP02702282A
Other languages
German (de)
English (en)
Other versions
EP1365869B1 (fr
Inventor
Jürgen Seidel
Wilfried Bald
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 Demag 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 Demag AG filed Critical SMS Demag AG
Publication of EP1365869A1 publication Critical patent/EP1365869A1/fr
Application granted granted Critical
Publication of EP1365869B1 publication Critical patent/EP1365869B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B13/04—Three-high arrangement
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B2031/206—Horizontal offset of work rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/02—Roll dimensions
    • B21B2267/06—Roll diameter
    • B21B2267/065—Top and bottom roll have different diameters; Asymmetrical rolling
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/10—Driving arrangements for rolls which have only a low-power drive; Driving arrangements for rolls which receive power from the shaft of another roll
    • 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

Definitions

  • the invention relates to a rolling mill for the production of flat rolled strips with the desired strip profile elevation, with work rolls supported on at least one support roll, the work rolls having different diameters, the thicker work roll being connected to a drive and the thinner work roll running as a "drag roll”.
  • Rolling mills with different diameters of the work rolls are known.
  • a rolling mill is described in US Pat. No. 2,139,872, in which, in order to achieve the most effective possible reduction of the rolled strip during rolling, two work rolls of different diameters supported on support rolls are arranged. It has proven to be advantageous here to drive only the larger work roll and to let the smaller roll run as a drag roll.
  • Known rolling mills of this type are advantageously used in the rear stands of a rolling mill with the aim of reducing the rolling force and the drive power and reducing the edge drop, particularly in the case of high-carbon steel.
  • the thermal crowning and wear of the work rolls and their elastic deformations are subject to relatively large changes within a rolling program. Without any correction by actuators, the strip contour changes as the rolling material throughput increases. This effect differs from scaffold to scaffold or from stitch to stitch. In addition to the strip contour, this also changes the predefined hot strip flatness and subsequently the cold strip flatness.
  • the object of the invention is to further modify the known rolling mill with its different work roll diameters in such a way that a strip of high quality is produced and these stands can be used universally.
  • That at least one of the work rolls is designed to be adjustable in the outlet direction and
  • the back-up rolls and the work rolls are provided with a curved contour running essentially over the entire length of the bale (CVC cut (continuously variable crown), which is defined by a polynomial of at least second order), which are offset by 180 ° relative to one another arranged and which is designed such that the two bale contours of the work rolls complement each other to form a symmetrical contour of the roll gap.
  • CVC cut continuously variable crown
  • R (x) a 5 x 5 + a • x 4 + a 3 x 3 + a 2 • x 2 + a. x + a 0
  • the work rolls Since the work roll diameters are different, the work rolls also have different deflection and flattening behavior. In particular, the effects between the backup rolls and the work rolls are different. This applies in particular to a 3-roll stand in which only the thinner work roll is supported by a backup roll, since the thicker work roll roll any support is missing.
  • the contours of the work rolls were therefore designed differently according to the invention in order to compensate for these effects. The calculation of the required contour is done offline with the aim of creating a symmetrical roll gap under load.
  • the new roll stand concept is special in such a case
  • 3-roll stand applicable. These scaffolds can then advantageously also be used for the front scaffolds, for example, for loads that are not so high.
  • This 3-roll stand only the thicker work roll is driven and the thinner work roll runs as a drag roll.
  • the thicker work roll acts as a work roll that can transmit a high moment and at the same time serves as a backup roll.
  • the combination with the other, thinner work roll supported by a separate back-up roll then results in controllable rolling forces.
  • one of the work rolls is arranged according to the invention so as to avoid this ski formation.
  • the setting of this roll offset is u. a. controlled depending on the inlet and outlet thickness, the material strength of the rolled strip, the current diameter combination of the work rolls etc.
  • the non-driven work roll In the case of a roll stand that contains a non-driven, smaller work roll and that is not pretensioned (the roll gap corresponds approximately to the strip inlet thickness before the tapping), it is also advantageous to provide the non-driven work roll with an auxiliary drive, which then decouples after tapping / or is switched off.
  • the auxiliary drive also enables any necessary axial displacement of the work rolls during the breaks.
  • the work rolls are made of materials that differ in their wear behavior or of highly wear-resistant materials, for example using a powder metallurgical process, preferably the HIP process (hot isostatic pressing).
  • HIP process hot isostatic pressing
  • the material to be treated is treated in special autoclaves (HIP systems) with all-round pressure (up to 200 Mpa) and high temperature (depending on the material up to 2000 ° C) heated above its yield point and compressed at the same time.
  • Fig. 2 shows a 3-roll stand in a schematic side view.
  • a four-high stand 10 is shown with two work rolls 1, 2, which are supported on support rolls 3, 4.
  • a work roll 2 with a larger diameter is arranged below the rolled strip 6 and a work roll 1 with a smaller diameter is arranged above the rolled strip 6.
  • the larger work roll 2 is provided with a drive 5, while the thinner work roll 1 has no drive and only runs as a “drag roll” due to the contact with the roll belt 6.
  • the thinner work roll 1 is arranged horizontally displaceably in the direction of arrow 9 and in the exemplary embodiment shown in FIG Exit direction 7 of the rolled strip 6 offset by the amount 8 from its original position.
  • the contours of the surfaces of the work rolls 1, 2 with their associated support rolls 3, 4 are produced according to the invention by a CVC cut, calculated according to a polynomial of at least second order (this CVC cut is not visible in the side view of the roll stand 10 shown).
  • the upper work roll 1 can have a diameter of 400 mm, for example, the lower work roll 2 can have a diameter of 600 mm, while the support rolls 3, 4 each have a diameter of 1350 mm.
  • FIG. 2 shows a 3-roll stand 11, in which only the upper, thinner work roll 1 is supported on a support roll 3.
  • the thicker and driven work roll 2, on the other hand, is so large in diameter that higher moments can be transmitted and therefore this work roll 2 also serves as a backup roll.
  • the thinner work roll 1 is offset from its original position by the amount 8 in the outlet direction 7.
  • the upper working salts 1 can have a diameter of z. B. 600 mm and the upper support roller 3 has a diameter between 1400 and 1600 mm.
  • the diameter of the lower work roll 2, which is also used here as a backup roll, can, for. B. be 1400 mm.
  • FIGS. 1 and 2 show the application of the invention in two roll stands. Of course, the invention can also be applied to other roll stands with different numbers of rolls from the examples, for example in roll stands with intermediate rolls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP02702282A 2001-01-23 2002-01-18 Cage de laminoir pour la production de feuillards lamines plans presentant un surhaussement de profil de feuillard desire Expired - Lifetime EP1365869B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10102821A DE10102821A1 (de) 2001-01-23 2001-01-23 Walzwerk zur Herstellung planer Walzbänder mit gewünschter Bandprofilüberhöhung
DE10102821 2001-01-23
PCT/EP2002/000479 WO2002058860A1 (fr) 2001-01-23 2002-01-18 Cage de laminoir pour la production de feuillards lamines plans presentant un surhaussement de profil de feuillard desire

Publications (2)

Publication Number Publication Date
EP1365869A1 true EP1365869A1 (fr) 2003-12-03
EP1365869B1 EP1365869B1 (fr) 2004-10-06

Family

ID=7671414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02702282A Expired - Lifetime EP1365869B1 (fr) 2001-01-23 2002-01-18 Cage de laminoir pour la production de feuillards lamines plans presentant un surhaussement de profil de feuillard desire

Country Status (16)

Country Link
US (1) US7251978B2 (fr)
EP (1) EP1365869B1 (fr)
JP (1) JP2004516945A (fr)
KR (1) KR100819834B1 (fr)
CN (1) CN1262363C (fr)
AT (1) ATE278483T1 (fr)
BR (1) BR0206092B1 (fr)
CA (1) CA2431775C (fr)
CZ (1) CZ298565B6 (fr)
DE (2) DE10102821A1 (fr)
ES (1) ES2229089T3 (fr)
RU (1) RU2280518C2 (fr)
TR (1) TR200402692T4 (fr)
UA (1) UA75385C2 (fr)
WO (1) WO2002058860A1 (fr)
ZA (1) ZA200303885B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9782809B2 (en) 2014-06-24 2017-10-10 Steinhoff Gmbh & Cie. Ohg Method for manufacturing a roll for hot or cold rolling of flat metal products

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AT501739B1 (de) * 2005-06-06 2006-11-15 Heinz Ing Altendorfer Walzkraft-einleitung in 4-walzengerüsten
WO2007144162A1 (fr) 2006-06-14 2007-12-21 Siemens Vai Metals Technologies Gmbh & Co Cage de laminoir pour la fabrication de bande laminée ou de tôle
JP5365020B2 (ja) 2008-02-08 2013-12-11 株式会社Ｉｈｉ 圧延機
DE102008009902A1 (de) * 2008-02-19 2009-08-27 Sms Demag Ag Walzvorrichtung, insbesondere Schubwalzengerüst
DE102009021414A1 (de) * 2008-12-17 2010-07-01 Sms Siemag Aktiengesellschaft Walzgerüst zum Walzen eines insbesondere metallischen Guts
DE102010014867A1 (de) * 2009-04-17 2010-11-18 Sms Siemag Ag Verfahren zum Bereitstellen mindestens einer Arbeitswalze zum Walzen eines Walzguts
DE102009033135A1 (de) * 2009-07-15 2011-01-27 Elringklinger Ag Verfahren zum Herstellen von Profildichtringen
DE102009037278A1 (de) * 2009-08-12 2011-02-17 Sms Siemag Ag Vorrichtung und Verfahren zum Herstellen eines dünnen Warmbandes
KR101274503B1 (ko) 2011-03-28 2013-06-13 강릉원주대학교산학협력단 비대칭 압연장치, 비대칭 압연방법 및 이를 이용하여 제조된 압연재
KR101316724B1 (ko) * 2011-09-16 2013-10-18 강릉원주대학교산학협력단 비대칭 압연장치, 비대칭 압연방법 및 이를 이용하여 제조된 압연재
EP3141335B1 (fr) 2015-09-08 2021-04-14 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG Procédé de fabrication d'un composant présentant une section centrale en acier
CN106391700B (zh) * 2016-08-31 2018-02-09 燕山大学 一种下驱动式y型四辊板带轧机
CN108405631A (zh) * 2018-03-02 2018-08-17 南京航空航天大学 一种调控超厚铝板非对称内剪切热轧过程弯曲程度的方法
DE102018212074A1 (de) * 2018-07-19 2020-01-23 Sms Group Gmbh Verfahren zum Ermitteln von Stellgrößen für aktive Profil- und Planheitsstellglieder für ein Walzgerüst und von Profil- und Mittenplanheitswerten für warmgewalztes Metallband
CN113118212B (zh) * 2021-04-16 2023-04-11 上海五星铜业股份有限公司 一种能够防止翘曲的宽幅箔材轧机及轧制方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9782809B2 (en) 2014-06-24 2017-10-10 Steinhoff Gmbh & Cie. Ohg Method for manufacturing a roll for hot or cold rolling of flat metal products

Also Published As

Publication number Publication date
KR20030068557A (ko) 2003-08-21
DE50201219D1 (de) 2004-11-11
BR0206092B1 (pt) 2010-06-29
CZ298565B6 (cs) 2007-11-07
RU2280518C2 (ru) 2006-07-27
ATE278483T1 (de) 2004-10-15
WO2002058860A1 (fr) 2002-08-01
JP2004516945A (ja) 2004-06-10
EP1365869B1 (fr) 2004-10-06
TR200402692T4 (tr) 2004-11-22
CA2431775A1 (fr) 2002-08-01
UA75385C2 (en) 2006-04-17
US20040040358A1 (en) 2004-03-04
US7251978B2 (en) 2007-08-07
CN1487861A (zh) 2004-04-07
DE10102821A1 (de) 2002-07-25
KR100819834B1 (ko) 2008-04-07
CZ20031897A3 (cs) 2004-02-18
RU2003125863A (ru) 2005-01-27
BR0206092A (pt) 2004-01-06
ZA200303885B (en) 2003-12-18
ES2229089T3 (es) 2005-04-16
CN1262363C (zh) 2006-07-05
CA2431775C (fr) 2010-01-12

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