EP2026916B1 - Cage de laminoir pour la fabrication de bande laminée ou de tôle - Google Patents

Cage de laminoir pour la fabrication de bande laminée ou de tôle Download PDF

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Publication number
EP2026916B1
EP2026916B1 EP07725995A EP07725995A EP2026916B1 EP 2026916 B1 EP2026916 B1 EP 2026916B1 EP 07725995 A EP07725995 A EP 07725995A EP 07725995 A EP07725995 A EP 07725995A EP 2026916 B1 EP2026916 B1 EP 2026916B1
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EP
European Patent Office
Prior art keywords
rolls
contour
barrel
function
supporting
Prior art date
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Active
Application number
EP07725995A
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German (de)
English (en)
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EP2026916A1 (fr
Inventor
Alois Seilinger
Markus Widder
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.)
Primetals Technologies Austria GmbH
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Siemens VAI Metals Technologies GmbH Austria
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Application filed by Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH Austria
Priority to SI200731046T priority Critical patent/SI2026916T1/sl
Priority to PL07725995T priority patent/PL2026916T3/pl
Publication of EP2026916A1 publication Critical patent/EP2026916A1/fr
Application granted granted Critical
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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
    • 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
    • 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
    • B21B2013/028—Sixto, six-high stands
    • 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
    • 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

Definitions

  • the invention relates to a rolling stand for the production of rolled strip or sheet metal with work rolls, which are supported on backup rolls or intermediate rolls and backup rolls, wherein the work rolls and / or intermediate rolls are arranged axially displaceable against each other in the rolling stand and each working and / or intermediate roll over the entire having effective bale length, curved, describable by a trigonometric function bale contour and complement these two bale contours complementary only in a certain relative axial position of the rollers of the roller pair in the unloaded state.
  • a rolling stand of the generic type is already out of EP-A 0258482 known.
  • the roll bale contour of the in the professional world under the name SmartCrown® from eg the AT 410765B known rollers can be mathematically described by a modified sine function. By a suitable choice of the contour parameters, this results in a cosinusoidal idling gap, which can be influenced in its amplitude by axial displacement of the rollers.
  • Object of the present invention is therefore to avoid the disadvantages of the prior art described above and to propose a rolling mill, to minimize the inhomogeneities in the load distribution along the contact line of the support rollers and their adjacent rollers and in particular reduce local load peaks in the load distribution curve and thus the duration of use To increase the rollers and the necessary regrinding intervals.
  • this partial or complete complement of the bale contours refers to the two back-up rolls and the respective adjacent work rolls.
  • this partial or complete complement of the bale contours refers to the two back-up rolls and the respective adjacent intermediate rolls.
  • the shortest possible displacement stroke of the work rolls is advantageous, since both the displacement time and the plant technology to be provided for sliding guides can be kept short.
  • a short displacement stroke leads to larger diameter differences over the bale length occurring with a given profile adjustment range of the work rolls than with a longer displacement stroke.
  • rollers in the rolling stand are aligned according to a possible embodiment of the invention so that a complete complement of the bale contours of the back-up rolls and the immediately adjacent work rolls or intermediate rolls in the unshifted state of the immediately adjacent work rolls or intermediate rolls occurs.
  • R B (x) support roller radius at the point x of the axial support roller extension, R 0 radius offset, r B (x) contour at the point x of the axial support roll extension and k correction factor
  • the complete complement of the roll bale contours results.
  • a complete completion of the roll bale contours is no longer possible.
  • the contour factor may be greater or less than 1.
  • bale ends of the rolls are usually chamfered and thus have an exemption in these edge regions.
  • Exemptions of this kind are from the EP 0 258 482 A1 or the EP 1 228 818 A2 already known. These exemptions are formed in contoured roll bales in marginal areas with increasing towards the edge bale radius by a cylindrical bale end, as in the EP 0 258 482 A1 is shown or may be formed in rolls with cylindrical roll bale contour by a cone-shaped edge region, as for example in the EP 1 228 818 A2 is shown and described.
  • FIGS. 1 to 4 The load distribution between back-up rolls and work rolls in a prior art roll bale contour is contrasted with the load distribution between back-up rolls and work rolls in a roll bale contour according to the invention using the example of a four-high stand.
  • FIG. 1 shows a schematic representation of the roller assembly in a four-high stand for rolling a metal strip B, in particular a steel strip with work rolls 1 and support rollers 2.
  • the axially displaceable work rolls 1 each have a writable by a modified sine function bale contour 3. These bale contours 3 complement each other in a certain relative axial position of the rolls of the pair of work rolls complementary.
  • the work rolls 1 are supported by support rollers 2, which have a cylindrical bale contour 4 and are supported on the work rolls acting rolling forces.
  • the load distribution between the upper work roll 1 and the upper support roll 2 is in this case the roll bale design in FIG.
  • FIG. 3 shows a schematic representation of the roll arrangement in a four-high stand with work rolls 1 and support rolls 2.
  • the axially displaceable work rolls 1 each have a bale contour 3 which can be described by a modified sine function, these bale contours being complementary in a specific relative axial position of the work rolls complete.
  • the two support rollers 2 also have a complementary complementary bale contour 4, which is also formed by a modified sine function, the bale contours of the adjacent, cooperating work roll 1 and support roller 2 completely complement each other in an unloaded state.
  • the load distribution between the upper work roll 1 and the upper support roll 2 is in this case the roll bale design in FIG. 4 shown. Load peaks in the edge area appear differently depending on the axial displacement. Altogether it shows over the rolling ball course at the However, the invention already a basic equalization of the load distribution.
  • FIG. 5 shows in a schematic arrangement, the roller assembly in a SextoGerüst with work rolls 1, intermediate rolls 5 and back-up rolls 2, wherein the work rolls are supported on the intermediate rolls on the support rollers.
  • the work rolls 1 are equipped with a cylindrical bale contour 3.
  • the bale contour of the work rolls can also be oriented to the bale contour of the adjacent intermediate rolls.
  • the intermediate rollers 5 have a bale contour 6 that can be described by a modified sine function.
  • the support rollers 2 have a bale contour 4 that can be described by a sine function.
  • the bale contours 4 of the support rollers 2 and the bale contour of the intermediate rollers 5 complement each other completely in the unshifted axial position of the axially adjustable intermediate rollers 5 in the unloaded state.
  • FIG. 6 shows work rolls 1 and back-up rolls 2 in a four-high stand in a schematic representation
  • the basic structure of the bale contours 3, 4 follows the embodiment of Figure 3.
  • a sexto scaffold analogous to FIG. 5 possible to change the contour of the support rollers and the intermediate rollers by a correction factor k, whereby in the unloaded state only a partial complement of the bale contours of the support roller and the immediately adjacent intermediate roller occurs.
  • FIG. 7 the course of the roll bale contour 7 of a back-up roll or intermediate roll or work roll over the bale length is shown.
  • dash-dotted lines 8, 9 known from the prior art possibilities of chamfering a roller in the end regions are shown to avoid high edge pressures.
  • the chamfering according to the dotted line 8 produces a cylindrical end portion and the chamfering corresponding to the dotted line 9 a cone-shaped end portion of the rollers, in both cases a kink 10 in the contour over the bale length occurs, which forms a circumferential edge on the roller.
  • An improvement in the Loading conditions result from a chamfer gradually approaching chamfer, resulting in both sides of a corrected bale contour, which is illustrated by the dotted lines 11 and 12.
  • both curves have the same slope as the tangent t.

Claims (6)

  1. Cage de laminoir servant à produire un feuillard ou une tôle laminée et dotée de cylindres de travail qui sont soutenus sur des cylindres de soutien ou sur des cylindres intermédiaires et des cylindres de soutien,
    les cylindres de travail et/ou les cylindres intermédiaires étant disposés dans la cage de laminoir de manière à pouvoir coulisser axialement l'un par rapport à l'autre et chaque cylindre de travail et/ou cylindre intermédiaire présentant un contour de corps qui s'étend sur la totalité de la longueur efficace du corps, courbé et décrit par une fonction trigonométrique, tandis qu'à l'état non sollicité, ces deux concours de corps se complètent de manière complémentaire uniquement dans une position axiale relative définie des cylindres de la paire de cylindres,
    les cylindres de soutien présentant un contour de corps complémentaire et à l'état non sollicité, le contour de corps des cylindres de soutien et des cylindres de travail ou cylindres intermédiaires immédiatement voisins étant partiellement ou complètement complémentaires,
    le contour de corps des cylindres de travail, des cylindres intermédiaires ou des cylindres de soutien présentant un chanfrein dans au moins une des parties de bord de leur extension longitudinale et formant dans ces parties de bord des contours de corps corrigés obtenus en soustrayant une fonction mathématique quelconque de chanfrein de la fonction du contour, caractérisée en ce que
    la pente du contour de corps et la pente du contour de corps corrigé sont identiques au point de transition entre le contour de corps corrigé et le contour de corps.
  2. Cage de laminoir selon la revendication 1, caractérisée en ce que lorsque les cylindres de travail ou cylindres intermédiaires immédiatement voisins sont en position non déplacée, les contours de corps des cylindres de soutien et des cylindres de travail ou cylindres intermédiaires immédiatement voisins se complètent totalement.
  3. Cage de laminoir selon la revendication 1, caractérisée en ce que lorsque les cylindres de travail ou cylindres intermédiaires immédiatement voisins sont en position non déplacée, les contours de corps des cylindres de soutien et des cylindres de travail ou cylindres intermédiaires immédiatement voisins ne se complètent pas totalement, avec la condition que le rayon Rb(x) du cylindre de soutien correspond à la formule R b x = R 0 + k . r b x
    Figure imgb0006
    dans laquelle
    Rb(x) est le rayon du cylindre de soutien à l'emplacement x de l'extension axiale du cylindre de soutien,
    R0 est un décalage de rayon,
    Rb(x) est le contour à l'emplacement x de l'extension axiale du cylindre de soutien et
    k est un facteur de correction,
    le facteur de correction k étant défini dans l'intervalle 0 < k ≤ 2 avec exclusion de la valeur k = 1.
  4. Cage de laminoir selon la revendication 1, caractérisée en ce que la fonction de chanfrein est une fonction circulaire.
  5. Cage de laminoir selon la revendication 1, caractérisée en ce que la fonction de chanfrein est une fonction sinusoïdale.
  6. Cage de laminoir selon la revendication 1, caractérisée en ce que la fonction de chanfrein est une fonction d'ordre 2.
EP07725995A 2006-06-14 2007-06-13 Cage de laminoir pour la fabrication de bande laminée ou de tôle Active EP2026916B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200731046T SI2026916T1 (sl) 2006-06-14 2007-06-13 Valjalno ogrodje za izdelavo valjanega traka ali pločevine
PL07725995T PL2026916T3 (pl) 2006-06-14 2007-06-13 Klatka walcownicza do wytwarzania taśmy walcowanej lub blachy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT10212006 2006-06-14
PCT/EP2007/005218 WO2007144162A1 (fr) 2006-06-14 2007-06-13 Cage de laminoir pour la fabrication de bande laminée ou de tôle

Publications (2)

Publication Number Publication Date
EP2026916A1 EP2026916A1 (fr) 2009-02-25
EP2026916B1 true EP2026916B1 (fr) 2012-08-01

Family

ID=38430512

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07725994.3A Active EP2026915B2 (fr) 2006-06-14 2007-06-13 Cage de laminoir pour la fabrication de bande laminée ou de tôle
EP07725995A Active EP2026916B1 (fr) 2006-06-14 2007-06-13 Cage de laminoir pour la fabrication de bande laminée ou de tôle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07725994.3A Active EP2026915B2 (fr) 2006-06-14 2007-06-13 Cage de laminoir pour la fabrication de bande laminée ou de tôle

Country Status (12)

Country Link
US (2) US8413476B2 (fr)
EP (2) EP2026915B2 (fr)
CN (2) CN101511498B (fr)
AT (1) ATE488309T1 (fr)
BR (2) BRPI0713145A2 (fr)
DE (1) DE502007005682D1 (fr)
ES (2) ES2355948T5 (fr)
PL (2) PL2026915T5 (fr)
RU (2) RU2428268C2 (fr)
SI (2) SI2026916T1 (fr)
UA (2) UA92946C2 (fr)
WO (2) WO2007144162A1 (fr)

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CN101511498B (zh) 2006-06-14 2011-06-15 西门子Vai金属技术两合公司 用来制造轧带或者板材的轧机机架
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
AT509107B1 (de) * 2009-12-10 2011-09-15 Siemens Vai Metals Tech Gmbh Walzgerüst zur herstellung von walzband
WO2011094552A1 (fr) * 2010-02-01 2011-08-04 The Timken Company Procédé de laminage et de courbure unifié pour grandes cages de roulements à rouleaux
DE102010029598A1 (de) * 2010-06-01 2011-12-01 ACHENBACH BUSCHHüTTEN GMBH Stützwalze und damit ausgerüstetes Walzgerüst
CN102397874A (zh) * 2010-09-16 2012-04-04 鞍钢股份有限公司 一种延长高速钢轧辊使用寿命的方法
DE102012212532B4 (de) 2012-07-18 2016-12-15 Achenbach Buschhütten GmbH & Co. KG Walzgerüst mit konturierten Walzen
US10226188B2 (en) 2013-08-23 2019-03-12 Covidien Lp Systems and methods for monitoring blood pressure
EP3108978B1 (fr) * 2015-06-26 2019-02-20 DANIELI & C. OFFICINE MECCANICHE S.p.A. Cage de laminoir et procédé de laminage
EP3124130A1 (fr) 2015-07-28 2017-02-01 Primetals Technologies Austria GmbH Meule de cylindre destinee a l'evitement cible de quarts d'onde
DE102016222987A1 (de) * 2016-11-22 2018-05-24 Sms Group Gmbh Verfahren zum Schleifen der Kontur des Ballens einer Walze
CN113319128B (zh) * 2021-06-15 2021-12-14 北京科技大学 一种变接触工作辊及其辊形设计方法

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Also Published As

Publication number Publication date
SI2026915T1 (sl) 2011-03-31
EP2026915B2 (fr) 2017-09-27
EP2026916A1 (fr) 2009-02-25
ES2355948T3 (es) 2011-04-01
EP2026915A1 (fr) 2009-02-25
UA92946C2 (uk) 2010-12-27
ES2355948T5 (es) 2018-02-14
RU2428268C2 (ru) 2011-09-10
WO2007144161A1 (fr) 2007-12-21
RU2009100920A (ru) 2010-07-20
BRPI0713147A2 (pt) 2012-03-20
US20100031724A1 (en) 2010-02-11
WO2007144162A1 (fr) 2007-12-21
CN101466483B (zh) 2011-06-15
PL2026915T5 (pl) 2018-08-31
EP2026915B1 (fr) 2010-11-17
BRPI0713145A2 (pt) 2012-03-20
CN101511498B (zh) 2011-06-15
RU2442669C2 (ru) 2012-02-20
SI2026916T1 (sl) 2012-11-30
PL2026916T3 (pl) 2012-12-31
CN101466483A (zh) 2009-06-24
SI2026915T2 (en) 2018-01-31
ATE488309T1 (de) 2010-12-15
CN101511498A (zh) 2009-08-19
RU2009100918A (ru) 2010-07-20
US8881569B2 (en) 2014-11-11
US20090314047A1 (en) 2009-12-24
PL2026915T3 (pl) 2011-04-29
UA93090C2 (uk) 2011-01-10
ES2392357T3 (es) 2012-12-10
US8413476B2 (en) 2013-04-09
DE502007005682D1 (de) 2010-12-30

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