EP2864062A1 - Procédé pour agir rationnellement sur la géométrie d'un produit laminé - Google Patents

Procédé pour agir rationnellement sur la géométrie d'un produit laminé

Info

Publication number
EP2864062A1
EP2864062A1 EP13729694.3A EP13729694A EP2864062A1 EP 2864062 A1 EP2864062 A1 EP 2864062A1 EP 13729694 A EP13729694 A EP 13729694A EP 2864062 A1 EP2864062 A1 EP 2864062A1
Authority
EP
European Patent Office
Prior art keywords
force
control
rolling
rolling stock
processing units
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
EP13729694.3A
Other languages
German (de)
English (en)
Other versions
EP2864062B1 (fr
Inventor
Matthias Kurz
Birger Schmidt
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 EP13729694.3A priority Critical patent/EP2864062B1/fr
Priority to PL13729694T priority patent/PL2864062T3/pl
Publication of EP2864062A1 publication Critical patent/EP2864062A1/fr
Application granted granted Critical
Publication of EP2864062B1 publication Critical patent/EP2864062B1/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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • 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
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • 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
    • 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
    • B21B2273/04—Lateral deviation, meandering, camber of product
    • 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
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering

Definitions

  • the invention relates to a method for the targeted influencing of the geometry of a rolling stock, wherein the rolling stock of egg ⁇ nem initial state by rolling with a rolling stand by means of at least one machining unit is transferred to an interim ⁇ schen- or final state.
  • the invention further relates to a control and / or regulating device, a machine-readable program code and a data carrier.
  • a rolling mill all the equipment needed for the production of rolled products can be combined.
  • hot and cold rolling mills are differentiated.
  • slabs or ingots, usually called brams for short are processed into hot strip. This hot forming is one of the methods that is the primary molding (ingot casting,
  • the rolling stock is heated to tempera ⁇ ren to 1350 ° C preferably above which reduces Re ⁇ crystallization temperature in a roll nip of the rolling mill by pressure to a predetermined thickness.
  • the Fer ⁇ tig usually steel or aluminum strip
  • a plurality of rolling stands are combined to form a rolling mill in which ent ⁇ speaking the number of scaffold runs several roll passes are carried out.
  • hot rolling mills a distinction is made between roughing and finishing lines, whereby the slab is pre-processed in the roughing mill and then rolled to its final dimensions in the usually five, six or seven-stand finishing train.
  • the rolling stock to be rolled in a roughing train has a thickness progression across its width. has.
  • the aim is usually to produce by means of rolling bands, which have on the one hand at the end of the finishing egg ⁇ ne substantially symmetrical to the band center running thickness across the width, ie, are free of wedges, and on the other hand, the least possible bending over the length of Have rolled good, ie are saber-free.
  • Wedge shape of the rolling material results in the control process from the casting and subsequent cooling and Rothverarbei ⁇ tung, particularly halving, the cast slabs.
  • a wedge-shaped rolling stock is to be rolled out into a slab having a substantially rectangular cross-section, the volume flow on the "thicker" side of the slab results in a greater flow of material, in particular longitudinal flow, than on the "thin" side of the slab slab.
  • the consequence of this different material flow in the longitudinal direction of the rolling stock is the formation of a saber shape or a saber.
  • a saber-shaped rolling stock can lead to difficulties in subsequent processing of the rolling stock.
  • the formation of the saber can be so strong that further processing of the rolling stock is impossible.
  • position-controlled processing units for applying a transverse force are known, for example side guides as described in WO2006 / 119984 or vertical stands (so-called Edger) for width control.
  • the object underlying the invention is to enable an improvement in the geometry of a rolling stock, in particular in the machining ⁇ tung asymmetric roll goods.
  • the object is achieved by a method for selectively influencing the geometry of a rolling stock, in particular a Vorbands, wherein the rolling stock of a ⁇ starting condition by rolling with the aid of a rolling stand, in particular ⁇ special a roughing stand, by means of at least one processing unit in an intermediate - or final state is transferred and wherein the at least one processing unit is operated under power control based on a desired force.
  • a processing unit here is understood in particular as a vertical frame (edger), a side guide or a transverse force ⁇ device in the sense of the patent application "side guide for a rolling mill” with the application file 12168684.4, filed on 21.05.2012.
  • a ASYMMET ⁇ step history of the rolled material can be particularly successfully counteracted by means of a suitably chosen force with which the processing unit acts on the rolled stock. This force is defined by the desired force, while the target power is a constant force or, alternatively, over time variable force curve. the previously applied Po ⁇ sitionsregelung the at least one machining unit is unsuitable for operation of the processing unit.
  • w ird allows asymmetric rolling is processed by the power control of the at least one machining ⁇ processing unit a with respect to its thickness and / or width, so that the asymmetrical eliminated rie or at least greatly reduced.
  • the force control can also be done with subordinate position control, ie the position is in a second, overlay
  • the control loop is used to control the setpoint force.
  • Derar ⁇ term cascade controls are known in the art.
  • a processing unit is preferential ⁇ as force-controlled and operated the other working unit position control.
  • the position-controlled processing unit is tracked in such a way the power-controlled processing unit, that a midpoint between the two processing units always remains in a predetermined position. If the desired force to be applied is overestimated, a pure force control can lead to an unwanted distortion of the material of the rolling stock, in which the saber changes its direction. To avoid this, the position-controlled Be ⁇ processing aggregate is moved closer to the rolling stock and takes the excessive power of the force-controlled machining unit on.
  • the tracking of the position-controlled processing unit is implemented by control technology, by the center between the two processing units is not moved, but in particular always remains in the same place.
  • the midpoint between the two machining ⁇ processing aggregates deviates conveniently from a center line of the stand off, but it can also lie on the center line of the rolling mill.
  • the center between the processing units and a distance between the processing units are used for the regulation of the processing units.
  • the center between the processing units is specified and the force control of one of the processing units via the adjustment of the distance between theffysaggre ⁇ gates.
  • This type of force control in which the center and the distance between the two processing units are the control variables, is particularly easy to implement. In particular, since the center remains constant, only the distance between the changed both processing units. If it moves the force-controlled machining unit, which po ⁇ sitionsgeregelte processing unit is tracked to compensate for a possibly too high target power.
  • the power control can not be Runaway ⁇ leads. Therefore, preferably, the first position control at least one Bear ⁇ beitungsaggregat moved up to the rolling stock and upon reaching the desired force by acting on the machining unit reaction force is switched to the force control.
  • the first position control at least one Bear ⁇ beitungsaggregat moved up to the rolling stock and upon reaching the desired force by acting on the machining unit reaction force is switched to the force control.
  • the position control of this machining ⁇ processing unit is switched to force control, so that the operations described above are performed.
  • the wedging and / or saberiness of the rolling stock, in particular in the on ⁇ initial state, measured and on this basis, the desired force is determined for the force control.
  • the distance between the processing units is calculated and fed as a controlled variable to the processing units.
  • the geometry of the rolling ⁇ guts may change such that the wedge or camber change their side or direction.
  • a change in the position of the wedging and / or the direction of the saberiness of the rolling stock is a change between the force-controlled and the position-controlled Processing unit. This means that if the saber form changes its direction during the rolling process, the force controlled machining unit is operated posi ⁇ tion controlled from the turning point earlier and earlier position-controlled machining unit is operated now under force control.
  • the object is further achieved by a control and / or regulating device for selectively influencing the geometry of a rolling stock, with a machine-readable program code containing control commands and / or control commands, the control and / or regulating device for performing the method according to one of cause the above.
  • the object is also achieved according to the invention by a machine-readable program code for a control and / or regulating device for selectively influencing the geometry of a rolling stock which contains control commands and / or re ⁇ yellow commands, the control and / or regulating device for performing the method according to cause one of the above.
  • FIG. 1 shows a first plan view of a rolling mill
  • a horizontal rolling stand 2 in particular ⁇ a special Vorgerüst shown, with the aid of a rolling stock 4, in particular a pre-strip, is rolled so that the rolling ⁇ well 4 from an initial state into an intermediate or Endzu - was transferred.
  • the rolling stand 2 has a drive ⁇ side DS and an operating page OS.
  • the rolling stand 2 are also assigned two processing units 6, 8, which are positioned on both sides of the rolling stock 4, as shown in FIG 2 can be seen.
  • S denotes the distance between the processing units 6, 8.
  • FIG 1 also have a center line 10 of the rolling mill 2, a center ⁇ lline 12 between the processing units 6, 8, as well as a midpoint 14 between the processing units 6, 8, which lies on the center line 12 is shown. As is also called an offset between the two center lines 10 and 12.
  • the rolling stand 2 is in the illustrated embodiment in particular ⁇ special reversible, so that the rolling stock 4 changes its rolling 16 during operation several times.
  • the function of the processing units 6, 8 is an asymmetric geometry of the material being rolled to 4 SUPPRESS ⁇ CKEN.
  • one of the processing units 6, 8 in the embodiment of FIG 2, the processing unit 6) is operated under power control, which is indicated by the desired force signal F.
  • the force-controlled machining unit 6 acts with a desired force F, which is based on the geometry of the rolling stock 4 is determined, the wedge or the saber shape opposite. In FIG. 2, only the processing unit 6 contacts the rolling stock 4, the second processing unit 8 is moved away from the rolling stock 4.
  • a method for a position ⁇ a certain camber according to W02009 / 016086 is used for the processing of the rolled stock.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

L'invention concerne un procédé pour agir rationnellement sur la géométrie d'un produit laminé (4), le produit laminé (4) étant amené d'un état de départ à un état intermédiaire ou à un état final, par laminage à l'aide d'une cage de laminoir (2), au moyen d'au moins un groupe de travail (6). On obtient une amélioration de la géométrie d'un produit laminé (4), en particulier dans le travail de produits laminés asymétriques, par le fait que le ou les groupes de travail (6) sont commandés de façon réglée en force sur la base d'une force de consigne (F).
EP13729694.3A 2012-07-27 2013-06-13 Procédé d'influence ciblée de la géométrie d'un produit à laminer Active EP2864062B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13729694.3A EP2864062B1 (fr) 2012-07-27 2013-06-13 Procédé d'influence ciblée de la géométrie d'un produit à laminer
PL13729694T PL2864062T3 (pl) 2012-07-27 2013-06-13 Sposób celowanego oddziaływania na geometrię materiału walcowanego

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12178145.4A EP2689863A1 (fr) 2012-07-27 2012-07-27 Procédé d'influence ciblée de la géométrie d'un produit à laminer
PCT/EP2013/062219 WO2014016045A1 (fr) 2012-07-27 2013-06-13 Procédé pour agir rationnellement sur la géométrie d'un produit laminé
EP13729694.3A EP2864062B1 (fr) 2012-07-27 2013-06-13 Procédé d'influence ciblée de la géométrie d'un produit à laminer

Publications (2)

Publication Number Publication Date
EP2864062A1 true EP2864062A1 (fr) 2015-04-29
EP2864062B1 EP2864062B1 (fr) 2016-09-28

Family

ID=48652053

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12178145.4A Withdrawn EP2689863A1 (fr) 2012-07-27 2012-07-27 Procédé d'influence ciblée de la géométrie d'un produit à laminer
EP13729694.3A Active EP2864062B1 (fr) 2012-07-27 2013-06-13 Procédé d'influence ciblée de la géométrie d'un produit à laminer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12178145.4A Withdrawn EP2689863A1 (fr) 2012-07-27 2012-07-27 Procédé d'influence ciblée de la géométrie d'un produit à laminer

Country Status (7)

Country Link
US (1) US9776229B2 (fr)
EP (2) EP2689863A1 (fr)
CN (1) CN104507592B (fr)
BR (1) BR112015001671A2 (fr)
PL (1) PL2864062T3 (fr)
RU (1) RU2647417C2 (fr)
WO (1) WO2014016045A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2689863A1 (fr) 2012-07-27 2014-01-29 Siemens Aktiengesellschaft Procédé d'influence ciblée de la géométrie d'un produit à laminer
EP2910316A1 (fr) * 2014-02-21 2015-08-26 Primetals Technologies Germany GmbH Précommande simple du pas de filetage d'un ébaucheur
EP2998040A1 (fr) * 2014-09-17 2016-03-23 Primetals Technologies Germany GmbH Réglage de largeur d'une ligne de fabrication
DE102020213241A1 (de) * 2020-02-06 2021-08-12 Sms Group Gmbh Verfahren zur Kalibrierung von Vertikalrollen eines Vertikalwalzgerüsts sowie Kalibrieranordnung zur Durchführung des Verfahrens

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Also Published As

Publication number Publication date
PL2864062T3 (pl) 2017-04-28
EP2689863A1 (fr) 2014-01-29
RU2647417C2 (ru) 2018-03-15
EP2864062B1 (fr) 2016-09-28
WO2014016045A1 (fr) 2014-01-30
CN104507592B (zh) 2016-08-24
CN104507592A (zh) 2015-04-08
US20150231679A1 (en) 2015-08-20
RU2015103124A (ru) 2016-09-20
BR112015001671A2 (pt) 2017-07-04
US9776229B2 (en) 2017-10-03

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