EP2699365A1 - Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande - Google Patents

Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande

Info

Publication number
EP2699365A1
EP2699365A1 EP12721227.2A EP12721227A EP2699365A1 EP 2699365 A1 EP2699365 A1 EP 2699365A1 EP 12721227 A EP12721227 A EP 12721227A EP 2699365 A1 EP2699365 A1 EP 2699365A1
Authority
EP
European Patent Office
Prior art keywords
rolling
plate
stand
pass
guide elements
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
EP12721227.2A
Other languages
German (de)
English (en)
Other versions
EP2699365B1 (fr
Inventor
Konrad Thiele
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 Germany GmbH
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP12721227.2A priority Critical patent/EP2699365B1/fr
Publication of EP2699365A1 publication Critical patent/EP2699365A1/fr
Application granted granted Critical
Publication of EP2699365B1 publication Critical patent/EP2699365B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/12—End of product
    • B21B2273/14—Front end or leading end

Definitions

  • the invention relates to a method for rolling plates by means of at least one roll stand.
  • the invention also relates to a computer program, a data carrier and a control device for a rolling stand.
  • the plate is no longer perpendicular to the rolling pass, but takes the shape of a parallelogram to ⁇ . at the next roll pass this effect is further enhanced as the plate until only one side of the roll gap is detected and thus creates transverse forces s. Due to the shear forces, the plate is, however, regarding turned to the rolling direction ⁇ except as permitted by the guide elements. Within the scope of these limits, the plate thus runs obliquely into and through the nip.
  • the invention has for its object to ensure a trouble-free ⁇ en rolling of plates and sheets, even if their faces are oriented by rolling obliquely to the rolling direction.
  • a first pass is made and, when the respective plate exits the rolling stand, it is detected whether the side surfaces of the plate are offset from one another in the rolling direction,
  • the plate is centered before a second pass, where ⁇ abut the guide elements in a centering position on the plate, and
  • first guide element for the side surface which first enters the rolling stand in the second rolling pass on a second pass from the centerline as the second guide element is adjusted.
  • first Walzstich this is not the very first Walzstich understood in the processing of the plate in the sheet rolling mill, but the chronological first of any two, immediately consecutive rolling passes in the context of the rolling process. Accordingly, "second roll pass” refers to the chronologically later of two immediately consecutive roll passes.
  • the guide elements were after centering, when the plate has reached the next nip, symmet ⁇ rically moved to distance to the plate, so that on both sides of the plate forms a tolerance gap of 3-5 cm especially ⁇ det.
  • the plate is rotated in the direction of its "slower" side, ie in the direction of the side surface, which enters as the second in the nip ⁇ guiding guide element.
  • the plate is checked after each rolling pass during the rolling ⁇ process in the sheet rolling mill, whether the side surfaces of the expiring plate are offset in the rolling direction to each other and thus the plate has the shape of a parallelogram with at least one oblique end face. If Festge ⁇ provides, is that the front sides of the plate no longer lie transversely after the last rolling pass to the rolling direction can be adjusted, the guide elements asymmetrically on the next rolling pass by the guide element, whereas the disc would hit during their rotation arriving in the second roll stand, closer to the plate so that the te can not perform their rotary motion.
  • the procedure is aimed our top priority aim to prevent further Verfor ⁇ tion of plates which already have their rectangular shape verlo ⁇ ren.
  • the second guide element for the side surface which enters the rolling stand as the second in the second pass, remains in its centering position.
  • the second guide element rests against the side surface of the plate facing it.
  • the Füh ⁇ approximately element is positioned such that the distance between him and the center line substantially corresponds to the distance between the centerline and the side surfaces in a symmetrical arrangement of the plate so that the guide element at the entry of the first side surface in the nip against pushes the second side surface and thus prevents pivoting of the plate at the beginning of the rolling pass.
  • a tolerance gap is set between the first guide element and the side surface of the plate facing it whose width is a few centimeters, in particular 6 to 10 cm.
  • the "opening" of the guide element for the side surface, which enters the first in the nip, is made for safety reasons, so that the plate does not get stuck.
  • a rolling force is measured both on the drive side and on the operator side to check whether the side surfaces of the plate are offset in the rolling direction.
  • Plate drive side and operator side is not the same, be ⁇ this means that the end faces of the plate are viewed in the rolling direction obliquely.
  • This information about the Stirnsei ⁇ th the plate is determined when the plate comes to an end after the first rolling pass.
  • the guide elements are adjusted at the Next Tier ⁇ th rolling pass according asymmetrical, in order to prevent pivoting of the plate.
  • the arrangement of the guide elements is only during the ⁇ running a head side of the plate for the orientation of the plate during the entire rolling pass of importance. If the same rolling force is set on the drive side and on the operator side, the plate is simply moved on independently of the guide elements.
  • the guide elements according to ei ⁇ ner further preferred embodiment after the arrival of the second side surface in the roll stand again symmetrically at a small distance of particular 3 to 5 cm to the Sei ⁇ set surfaces.
  • Sheet rolling mills may comprise a plurality of rolling mills, which are arranged one behind the other in the rolling direction. If only one rolling pass is carried out on each roll stand, this means that the plate is always conveyed only in the rolling direction during its processing in the sheet rolling mill, so that the same end face forms the top side of the plate with each rolling pass.
  • the guide elements of the depending Weil ⁇ next rolling stand after centering of the plate when entering the plate are also preferably set asymmetrically.
  • the sheet rolling mill may alternatively include at least one reversible rolling stand on which a plurality of rolling passes are performed by the rolling direction is rotated again and again.
  • both end faces of the plate alternately form the head side.
  • the object is further achieved according to the invention by a computer program comprising a machine code, the execution of which by a control device for a rolling stand causes the rolling stand to be operated according to a method according to one of the embodiments described above.
  • control device for a rolling stand in which such a computer program is stored, which is executable by the control device.
  • FIG. 1 shows an asymmetrical adjustment of guide elements, a signal of a differential rolling force measured in the situation according to FIG. 1, a signal of the differential rolling force measured in the situation according to FIG. 2, and FIG
  • FIG. 1 symbolically shows a rolling stand 2 of a sheet metal rolling mill not shown here, with the aid of which a plate 4 is rolled.
  • the rolling mill 2 is gekennzeich ⁇ net by a drive side OS and by an operating side DS.
  • the sheet rolling mill comprises a plurality of such rolling stands 2 which are arranged in a rolling direction 6 along a center line M one behind the other.
  • the plate 4 is conveyed in the rolling direction 6, wherein usually each next rolling pass is performed on the next rolling mill 2 in the rolling direction 6.
  • the plate 4 has two end faces 8, 10 and two sides ⁇ surfaces 12, 14th Depending on which end side enters as the first and second in the respective rolling stand 2, the end faces are referred to as the head side and foot side.
  • the head according to Figures 1 and 2 is the front face 8 and the foot side is gebil ⁇ det by the opposite end face of the tenth
  • the plate 4 is rectangular. A rectangular plate is thereby driven straight edge in its processing in a rolling gap not shown here in detail of the roll stand 2 ⁇ .
  • two guide elements 16, 18 are provided, which are arranged parallel to the center line ⁇ M. The guide elements 16, 18 abut against the plate 4.
  • the guide members 16, 18 are adjusted so that between each guide member 16, 18 and the side surface 12, 14, which faces it, a small tolerance gap 20a, 20b formed by a few centimeters. In normal operation of the roll stand 2 in a rectangular plate 4, the width of the tolerance gap is about 3 cm.
  • the plate 4 rotates in operation with respect to the center line M and so in the rolling gap of the roll stand 2 enters. After a roll pass, the plate 4 is then no longer rectangular, but it has the shape of a parallelogram.
  • the head side 8 of the plate 4 is directed obliquely to the roll gap, so that the plate 4 first enters the roll stand only with an edge, as shown in FIG. 1, with the drive-side edge of the end face 8.
  • the plate 4 is pivoted in the direction of the operating side DS. This pivoting movement is indicated in FIG 1 by the arrow 22. In its rotation, the plate 4 may abut the bedienseitli ⁇ che guide member sixteenth
  • the shape of the plate becomes 4 determined. This is done by measuring the rolling force both on the operating side DS and at the driving side OS of the rolling mill 2. From the at ⁇ the measured values, a difference measurement value D is formed and from ⁇ given, as shown in FIG 3, FIG 4 and FIG 5 is. The course of the differential rolling force in the situation according to FIG. 1 is shown in FIG. Since the plate 4 only enters the nip with its drive-side edge, this provides
  • Signal for the differential rolling force D at the time of Einlau ⁇ fens of the slab 4 in the nip a first peak 24, as the drive side already high forces on the plate 4 and on the rollers of the roll stand 2 act while still no operatively contact between the Rolling and the plate 4 is done.
  • the portion 26 of the signal for the differential rolling force ⁇ D of Figure 3 illustrates the entry of the head 8 in the nip.
  • the peak 28 marks the time ⁇ point, from which the operator-side edge of the end face 8 of the plate 4 is located in the nip of the roll stand 2.
  • the time course of the differential rolling force D over several rolling passes I, II and III is shown in FIG.
  • the first Rolling Stitch I shows the course of the differential rolling force D in the situation according to FIG. 1.
  • the course of the differential rolling force D when the plate 4 enters the roll stand 2 in this case has already been explained with reference to FIG.
  • the second half of the course of the rolling force difference D during the first rolling pass I represents the leakage of the slab 4 from the nip is
  • the peak 30 shows a big difference in the rolling force between the operator side DS and the drive ⁇ page OS in the time in which. the drive side edge of the foot 10 leaves the nip.
  • the region 32 veran ⁇ illustrates the gradual phasing out of the foot end 10 of the plate 4 from the rolling stand 2.
  • the guide elements 16, 18 are positioned asymmetrically with respect to the center line M such that the plate 4 can not perform a pivoting movement 22. This is shown in FIG. Since the rolling force is measured at each pass, changes in the geometry of the plate 4 that took place during rolling can be detected when the plate 4 leaves the nip. If an oblique position of the end faces 8, 10 of the plate 4 is detected, the next rolling stand on the next rolling stand 2 in the rolling direction 6, the operating-side guide member 16 remains adjacent to the side surface 12. In this arrangement, the plate 4 can no longer rotate in the direction of arrow 22 in FIG 1 when entering the nip.
  • FIG. Of Figure 4 it can be seen that the drive-side edge of the end face 8 in leaves from the BE ⁇ dienseitlichen edge of the end face 8 in the nip, that is to say that the side surfaces are offset 12, 14 to each other in the rolling direction 6, by the asymmetric arrangement of the guide elements 16, 18 it is ensured that the side surfaces 12, 14 at the inlet of the plate 4 parallel to each other and parallel to the center line M remain.
  • the right ⁇ angular shape of the plate 4 can not be restored by this, however, a further distortion of the plate 4 is avoided during the rolling pass.
  • the guide elements 12, 14 again adjusted symmetrically with respect to the center line M at a distance from the plate 4.
  • the adjustment of the guide elements 12, 14 is carried out in particular by a control device not shown here in detail, which in response to the measurement signal of rolling ⁇ forces on the operating side DS and the drive side OS or in dependence of the differential rolling force D, a control signal to the guide elements 16, 18 issues.
  • the asymmetrical adjustment of the guide elements 12, 14 during running in of the plate 4 is carried out on each additional roll stand 2 in the rolling direction 6. It is also conceivable that the rolling mill 2 is operated reversibly, so that several roll passes are made on this one roll stand 2. In this case, the rolling direction is changed in the opposite direction of the arrow 6 after a first rolling pass. The end face 10 has been formed, the base side of the plate 4 is thus to head side of the plate 4. In the second rolling pass at roll stand 2 is thus bestersichti ⁇ gene that now the use-side side surface 12 in rolling ⁇ direction before the working side side face 14 is located, so that a rotation of the plate in the direction of the drive-side guide element 18 is to be expected. In this case, the drive-side guide member 18 is applied to the side surface 14 before the run-in of the plate 4 in the rolling stand 2, and the operation-side guide member 16 is further removed from the center line M.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

L'invention vise à assurer un fonctionnement sans défaillance d'une installation de laminage de plaques (4) ou de tôles lorsque ces dernières ont perdu leur forme rectangulaire et présentent la forme d'un parallélogramme, en empêchant un pivotement de la plaque (4) lors de son introduction dans une cage de laminoir (2). Le procédé consiste à effectuer une première passe de laminage et à déterminer, lorsque la plaque sort de la cage de laminoir, si les surfaces latérales (12, 14) de la plaque (4) sont décalées l'une par rapport à l'autre dans le sens du laminage. Si les surfaces latérales (12, 14) de la plaque (4) sont décalées l'une par rapport à l'autre dans le sens du laminage (6), c'est-à-dire si la plaque (4) présente la forme d'un parallélogramme et comporte une face frontale oblique, les éléments de guidage (16, 18) de la cage de laminoir (2) sont ajustés en position asymétrique par rapport à une ligne médiane (M) lors d'une deuxième passe de laminage. Un premier élément de guidage (18) de la surface latérale (14) qui est introduite en premier dans la cage de laminoir (2) lors de la deuxième passe de laminage est déplacé à plus grande distance de la ligne médiane (M) que ne l'est le deuxième élément de guidage (16).
EP12721227.2A 2011-05-24 2012-05-04 Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande Active EP2699365B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12721227.2A EP2699365B1 (fr) 2011-05-24 2012-05-04 Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11167293A EP2527056A1 (fr) 2011-05-24 2011-05-24 Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande
EP12721227.2A EP2699365B1 (fr) 2011-05-24 2012-05-04 Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande
PCT/EP2012/058180 WO2012159864A1 (fr) 2011-05-24 2012-05-04 Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande

Publications (2)

Publication Number Publication Date
EP2699365A1 true EP2699365A1 (fr) 2014-02-26
EP2699365B1 EP2699365B1 (fr) 2015-06-24

Family

ID=46085574

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11167293A Withdrawn EP2527056A1 (fr) 2011-05-24 2011-05-24 Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande
EP12721227.2A Active EP2699365B1 (fr) 2011-05-24 2012-05-04 Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11167293A Withdrawn EP2527056A1 (fr) 2011-05-24 2011-05-24 Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande

Country Status (6)

Country Link
US (1) US9346088B2 (fr)
EP (2) EP2527056A1 (fr)
CN (1) CN103547387B (fr)
BR (1) BR112013029987A2 (fr)
ES (1) ES2547105T3 (fr)
WO (1) WO2012159864A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2527056A1 (fr) 2011-05-24 2012-11-28 Siemens Aktiengesellschaft Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande
CN114904910B (zh) * 2022-07-19 2022-10-11 西安市轨道交通集团有限公司 基于轨道制造的智能轧制系统

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Publication number Priority date Publication date Assignee Title
JPS59220207A (ja) * 1983-05-31 1984-12-11 Toshiba Corp 鋼材の傾斜圧延装置
JPS61108415A (ja) * 1984-10-31 1986-05-27 Kawasaki Steel Corp 熱間連続圧延ラインにおける鋼板サイドガイドの制御方法
JPS61165218A (ja) * 1985-01-16 1986-07-25 Ishikawajima Harima Heavy Ind Co Ltd 圧延機のサイドガイド装置
DE3805475A1 (de) * 1988-02-22 1989-08-31 Schloemann Siemag Ag Vorrichtung zur walzgutfuehrung zwischen den walzen eines walzgeruestes
JPH01313107A (ja) * 1988-06-14 1989-12-18 Kawasaki Steel Corp 可逆圧延における圧延材のセンタリング方法
DE3838764A1 (de) 1988-11-16 1990-05-17 Schloemann Siemag Ag Vorrichtung zur ein- bzw. ausfuehrung von walzgut, insbesondere formstahl zwischen die walzen von walzgeruesten
US5195345A (en) 1989-07-04 1993-03-23 Sms Schloemann Siemag Aktiengesellschaft Reversing two-high section rolling mill stand
DE3921928A1 (de) * 1989-07-04 1991-01-17 Schloemann Siemag Ag Reversierbares duo-profil-walzgeruest
JPH0669582B2 (ja) * 1990-10-23 1994-09-07 石川島播磨重工業株式会社 サイドガイドの制御方法
JPH06339719A (ja) * 1993-05-31 1994-12-13 Kawasaki Steel Corp 圧延材料の曲がり矯正方法
JP3250446B2 (ja) * 1996-03-06 2002-01-28 日本鋼管株式会社 サイドガイド装置およびその開度調整方法
IT1296906B1 (it) * 1997-12-24 1999-08-02 Abb Sistemi Ind Spa Dispositivo di regolazione delle guide di ingresso del nastro in un laminatoio
KR100458778B1 (ko) * 2000-03-27 2004-12-03 제이에프이 스틸 가부시키가이샤 클러스터 밀의 워크 롤 시프트 장치 및 시프트 방법
DE10145106A1 (de) * 2001-09-13 2003-04-03 Sms Meer Gmbh Walzgutführungseinrichtung für Horizontal-Duowalzgerüste
DE102004060342B3 (de) * 2004-12-15 2006-07-27 Siemens Ag Betriebsverfahren für eine Walzstraße und hiermit korrespondierende Einrichtungen
DE102005021769A1 (de) * 2005-05-11 2006-11-23 Sms Demag Ag Verfahren und Vorrichtung zur gezielten Beeinflussung der Vorbandgeometrie in einem Vorgerüst
DE102005055106A1 (de) * 2005-11-18 2007-05-24 Sms Demag Ag Verfahren und Walzstraße zum Verbessern des Ausfädelns eines Metallwalzbandes, dessen Walzband-Ende mit Walzgeschwindigkeit ausläuft
JP4778832B2 (ja) * 2006-05-17 2011-09-21 三菱日立製鉄機械株式会社 先，後行金属板の幅揃え方法及び装置と連続圧延設備
EP2527056A1 (fr) 2011-05-24 2012-11-28 Siemens Aktiengesellschaft Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande

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Title
See references of WO2012159864A1 *

Also Published As

Publication number Publication date
CN103547387A (zh) 2014-01-29
EP2527056A1 (fr) 2012-11-28
US20140076014A1 (en) 2014-03-20
EP2699365B1 (fr) 2015-06-24
BR112013029987A2 (pt) 2017-01-31
US9346088B2 (en) 2016-05-24
CN103547387B (zh) 2016-02-03
ES2547105T3 (es) 2015-10-01
WO2012159864A1 (fr) 2012-11-29

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