EP2527056A1 - Verfahren zum Walzen von Platten, Computerprogramm, Datenträger und Steuereinrichtung - Google Patents

Verfahren zum Walzen von Platten, Computerprogramm, Datenträger und Steuereinrichtung Download PDF

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Publication number
EP2527056A1
EP2527056A1 EP11167293A EP11167293A EP2527056A1 EP 2527056 A1 EP2527056 A1 EP 2527056A1 EP 11167293 A EP11167293 A EP 11167293A EP 11167293 A EP11167293 A EP 11167293A EP 2527056 A1 EP2527056 A1 EP 2527056A1
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.)
Withdrawn
Application number
EP11167293A
Other languages
German (de)
English (en)
French (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.)
Siemens AG
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 EP11167293A priority Critical patent/EP2527056A1/de
Priority to ES12721227.2T priority patent/ES2547105T3/es
Priority to PCT/EP2012/058180 priority patent/WO2012159864A1/de
Priority to US14/119,998 priority patent/US9346088B2/en
Priority to EP12721227.2A priority patent/EP2699365B1/de
Priority to CN201280024383.5A priority patent/CN103547387B/zh
Priority to BR112013029987A priority patent/BR112013029987A2/pt
Publication of EP2527056A1 publication Critical patent/EP2527056A1/de
Withdrawn legal-status Critical Current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
    • 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 further relates to a computer program, a data carrier and a control device for a rolling stand.
  • side guide elements are provided, which grant the rectilinear, symmetrical course of the plate.
  • the guide elements are used for centering and are then slightly “driven up” again. They do not lie directly on the side surfaces of the plate, but are positioned at a distance from the side surfaces, so that between the guide elements and the side surfaces of the plates columns with a width of a few centimeters, in particular from 3 to 5 cm, are formed.
  • the plate after the roll pass is no longer rectangular, but takes the form of a parallelogram.
  • this effect is additionally reinforced, since the plate is only detected on one side of the roll gap and thus transverse forces arise. Due to the transverse forces, however, the plate is rotated with respect to the rolling direction as far as the guide elements permit. 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 rolling of plates and sheets, even if their faces are oriented by the rollers at an angle to the rolling direction.
  • 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 after centering when the plate has reached the next nip, moved symmetrically to distance to the plate, so that on both sides of the plate forms a tolerance gap of 3-5 cm in particular.
  • the plate is rotated in the direction of its "slower" side, i. in the direction of the side surface, which enters as the second in the nip. She beats against the corresponding 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 it is determined that the end faces of the plate after the last pass are no longer transversely to the rolling direction, the next rolling pass the guide elements are set asymmetrically by the guide element, whereas the plate would hit as it rotates when entering the second mill, closer the plate stays, leaving the plate can not perform their rotary motion.
  • the method aims in the first place to prevent further deformation of plates that have already lost their rectangular shape.
  • 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 guide element bears against the side surface of the plate facing it.
  • the guide element is positioned such that the distance between it and the center line substantially corresponds to the distance between the center line and the side surfaces in a symmetrical arrangement of the plate, so that the guide element against the second when entering the first side surface in the nip Side surface presses 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. If the rolling force on the end faces of the plate on the drive side and the operator side is not the same, this means that the end faces of the plate are viewed in the rolling direction obliquely. This information on the end faces of the plate is determined when the plate comes to an end after the first pass. The guide elements are adjusted asymmetrically in the next roll pass to prevent pivoting of the plate.
  • the arrangement of the guide elements is important only during the entry of a head side of the plate for the orientation of the plate during the entire rolling pass. 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. So that friction forces are not unnecessarily generated between one of the side surfaces and one of the guide elements, according to a further preferred embodiment, after the second side surface enters the rolling stand, the guide elements are adjusted symmetrically at a slight distance of, in particular, 3 to 5 cm from the side 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 next rolling stand after centering of the plate when entering the plate are also set asymmetrically.
  • the guide elements of the next rolling stand after centering of the plate when entering the plate are also 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.
  • the object is also achieved according to the invention by a data carrier on which such a computer program is stored in machine-readable form.
  • control device for a rolling stand in which such a computer program is stored, which is executable by the control device.
  • FIG. 1 is symbolically shown a rolling stand 2 of a sheet rolling mill not shown here, with the aid of a plate 4 is rolled.
  • the rolling stand 2 is characterized 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 side surfaces 12, 14. 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 side according to 1 and FIG. 2 is the front side 8 and the foot side is formed by the opposite end face 10.
  • the plate 4 is rectangular. A rectangular plate is thereby driven straight edge in their 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.
  • the width of the tolerance gap is about 3 cm.
  • the plate 4 is rotated in operation with respect to the center line M and so into the nip 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. In the next rolling pass, the head side 8 of the plate 4 is directed obliquely to the nip, so that the plate 4 only with an edge, according to FIG. 1 only enters the mill stand with the drive-side edge of the end face 8. By the rolling forces acting in the region of 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 in FIG. 1 indicated by the arrow 22. During its rotation, the plate 4 can push against the control-side guide element 16.
  • the shape of the plate 4 is determined after each rolling pass during the departure of the plate 4 from the nip of the respective rolling stand 2. This is done by measuring the rolling force both on the operating side DS and on the drive side OS of the roll stand 2. From the two measured values, a difference measured value D is formed and output, as shown in FIG 3, FIG. 4 and FIG. 5 is shown. The course of the differential rolling force in the situation according to FIG. 1 is in FIG. 3 shown.
  • the signal for the differential rolling force D at the time of entry of the slab 4 in the nip provides a first peak 24, since the drive side already high forces on the plate 4 and on the rollers of the roll stand 2, while the operating side no contact between the rollers and the plate 4 has taken place.
  • the range 26 of the signal for the differential rolling force D according to FIG. 3 illustrates the shrinkage of the head 8 in the nip.
  • the peak 28 marks the time from which the operator-side edge of the end face 8 of the plate 4 is 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 in FIG. 5 shown.
  • the first Rolling pass 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 running in the plate 4 in the roll stand 2 in this case has already been FIG. 3 explained.
  • the second half of the course of the differential rolling force D during the first pass I represents the runout of the slab 4 from the nip.
  • the peak 30 shows a large difference in rolling force between the operating side DS and the drive side OS at the time of the driving side Edge of the foot 10 leaves the nip.
  • the area 32 illustrates the gradual leakage of the foot side 10 of the plate 4 from the rolling stand 2. From the peak 34, the plate 4 is completely outside the nip.
  • 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 in FIG. 2 shown. 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 when entering the nip is no longer in the direction of arrow 22 according to FIG. 1 rotate.
  • FIG. 4 The course of the differential rolling force D in the arrangement according to FIG. 2 is in FIG. 4 shown.
  • FIG. 4 It can be seen that the drive-side edge of the end face 8 moves in front of the user side edge of the end face 8 in the nip, ie that the side surfaces 12, 14 are offset in the rolling direction 6 to each other, by the asymmetric arrangement of the guide elements 16, 18 is guaranteed, 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 rectangular shape of the plate 4 can not be restored thereby, however, a further distortion of the plate 4 is avoided during the rolling pass.
  • the adjustment of the guide elements 12, 14 is carried out in particular by a control device not shown in detail here, which outputs a control signal to the guide elements 16, 18 as a function of the measurement signal of the rolling forces on the operating side DS and the drive side OS or as a function of the differential rolling force D. ,
  • the rolling mill 2 is operated reversibly, so that several roll passes are made on this one roll stand 2.
  • the rolling direction is changed in the opposite direction of the arrow 6 after a first rolling pass.
  • the end face 10, which has hitherto formed the foot side of the plate 4 thus becomes the head side of the plate 4.
  • the second rolling pass on the roll stand 2 it is therefore to be considered that now the operating side face 12 lies in the rolling direction in front of the working side face 14, so that a rotation of the plate in the direction of the drive-side guide element 18 is to be expected.
  • 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)
EP11167293A 2011-05-24 2011-05-24 Verfahren zum Walzen von Platten, Computerprogramm, Datenträger und Steuereinrichtung Withdrawn EP2527056A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP11167293A EP2527056A1 (de) 2011-05-24 2011-05-24 Verfahren zum Walzen von Platten, Computerprogramm, Datenträger und Steuereinrichtung
ES12721227.2T ES2547105T3 (es) 2011-05-24 2012-05-04 Método para laminar placas, programa informático, soporte de datos y dispositivo de control
PCT/EP2012/058180 WO2012159864A1 (de) 2011-05-24 2012-05-04 Verfahren zum walzen von platten, computerprogramm, datenträger und steuereinrichtung
US14/119,998 US9346088B2 (en) 2011-05-24 2012-05-04 Method for rolling plates, computer program, data carrier and control device
EP12721227.2A EP2699365B1 (de) 2011-05-24 2012-05-04 Verfahren zum walzen von platten, computerprogramm, datenträger und steuereinrichtung
CN201280024383.5A CN103547387B (zh) 2011-05-24 2012-05-04 用于轧制板材的方法
BR112013029987A BR112013029987A2 (pt) 2011-05-24 2012-05-04 método para laminação de placas, programa de computador, portadora de dados e dispositivo de controle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11167293A EP2527056A1 (de) 2011-05-24 2011-05-24 Verfahren zum Walzen von Platten, Computerprogramm, Datenträger und Steuereinrichtung

Publications (1)

Publication Number Publication Date
EP2527056A1 true EP2527056A1 (de) 2012-11-28

Family

ID=46085574

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11167293A Withdrawn EP2527056A1 (de) 2011-05-24 2011-05-24 Verfahren zum Walzen von Platten, Computerprogramm, Datenträger und Steuereinrichtung
EP12721227.2A Active EP2699365B1 (de) 2011-05-24 2012-05-04 Verfahren zum walzen von platten, computerprogramm, datenträger und steuereinrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12721227.2A Active EP2699365B1 (de) 2011-05-24 2012-05-04 Verfahren zum walzen von platten, computerprogramm, datenträger und steuereinrichtung

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9346088B2 (en) 2011-05-24 2016-05-24 Primetals Technologies Germany Gmbh Method for rolling plates, computer program, data carrier and control device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0925854A2 (en) * 1997-12-24 1999-06-30 ABB Sistemi Industriali SpA Device for adjusting the guides for the entry of the strip in a mill

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JPS59220207A (ja) * 1983-05-31 1984-12-11 Toshiba Corp 鋼材の傾斜圧延装置
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
CN1184024C (zh) * 2000-03-27 2005-01-12 三菱重工业株式会社 多辊轧机工作轧辊移位装置和方法
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 (de) 2011-05-24 2012-11-28 Siemens Aktiengesellschaft Verfahren zum Walzen von Platten, Computerprogramm, Datenträger und Steuereinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0925854A2 (en) * 1997-12-24 1999-06-30 ABB Sistemi Industriali SpA Device for adjusting the guides for the entry of the strip in a mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9346088B2 (en) 2011-05-24 2016-05-24 Primetals Technologies Germany Gmbh Method for rolling plates, computer program, data carrier and control device

Also Published As

Publication number Publication date
CN103547387B (zh) 2016-02-03
CN103547387A (zh) 2014-01-29
BR112013029987A2 (pt) 2017-01-31
US20140076014A1 (en) 2014-03-20
EP2699365A1 (de) 2014-02-26
ES2547105T3 (es) 2015-10-01
US9346088B2 (en) 2016-05-24
EP2699365B1 (de) 2015-06-24
WO2012159864A1 (de) 2012-11-29

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