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EP2869945A2 - Installation de coulée en bande et de laminage fonctionnant en continu - Google Patents

Installation de coulée en bande et de laminage fonctionnant en continu

Info

Publication number
EP2869945A2
EP2869945A2 EP13765617.9A EP13765617A EP2869945A2 EP 2869945 A2 EP2869945 A2 EP 2869945A2 EP 13765617 A EP13765617 A EP 13765617A EP 2869945 A2 EP2869945 A2 EP 2869945A2
Authority
EP
European Patent Office
Prior art keywords
casting
unit
strip
belt
rollers
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
EP13765617.9A
Other languages
German (de)
English (en)
Other versions
EP2869945B1 (fr
Inventor
Hellfried Eichholz
Karl-Heinz Spitzer
Sven Klawiter
Rune SCHMIDT-JÜRGENSEN
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 Group GmbH
Original Assignee
SMS Siemag 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 Siemag AG filed Critical SMS Siemag AG
Priority to PL13765617T priority Critical patent/PL2869945T3/pl
Publication of EP2869945A2 publication Critical patent/EP2869945A2/fr
Application granted granted Critical
Publication of EP2869945B1 publication Critical patent/EP2869945B1/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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B21B1/463—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 metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/14—Plants for continuous casting
    • B22D11/143—Plants for continuous casting for horizontal casting

Definitions

  • the invention relates to a continuous strip casting and rolling plant according to the preamble of claim 1.
  • a continuous strip casting and rolling plant is z. From steel research 74 (2003), no. 11/12, page 724-731. In particular, this known as DSC process (direct strip casting) manufacturing process is suitable for the production of
  • Hot strip made of high manganese lightweight steel made of high manganese lightweight steel.
  • Casting machine abandoned on a revolving casting belt of a horizontal strip casting machine.
  • the abandoned melt solidifies to a pre-strip with a thickness in the range between 6 - 20 mm.
  • the pre-strip is subjected to a hot rolling process.
  • the casting, rolling and winding of the steel strip requires from the strip caster that the removal of the cast strand from the caster be performed with very little traction, ideally with a zero draw force.
  • the known high-manganese-containing lightweight steels tend even at minor
  • strip tension regulations for continuous rolling mills are known, for example, from DE 101 37 246 A1 or DE 26 18 901 C2.
  • these designed for continuous rolling mills devices for tension control are not sufficient to control the strip tension between the casting unit and the subsequent roller unit so and keep it at a low level that tape cracks can be safely avoided.
  • the object of the invention is to provide a continuous strip casting and rolling plant, can be safely avoided with the tape cracks. This object is achieved starting from the preamble in conjunction with the characterizing features of claim 1.
  • Advantageous developments and an apparatus for producing hot strips are the subject of dependent claims.
  • the stripper minimization, the casting unit and the following roller unit are mechanically decoupled, wherein for decoupling at least one at least two drivable rollers having drive unit for driving the belt between the casting belt and roller unit is arranged.
  • the strip casting and rolling plant according to the invention is basically suitable for the production of hot strips of various metallic materials, but especially for high manganese lightweight steel, which is very sensitive to excessive
  • the operating times and thus the efficiency of the strip casting can be significantly increased by the decoupling and strip tension control according to the invention and thus the maintenance costs for the strip casting can be significantly reduced.
  • a decoupling of driver unit and roller unit is additionally carried out.
  • a pneumatically operated working as a looper spring unit is used for decoupling.
  • the driver unit according to the invention is rotatably mounted eccentrically, wherein the rollers of the driver unit are displaceable substantially parallel to the strand normal during the casting and rolling process in the casting direction or counter to the casting direction.
  • the bearings can be either below the lower or above the upper roller in the frame of the driver unit.
  • the storage corresponds to a pendulum bearing of the driver unit, the "pendulum" (driver unit) is stored below or above.
  • one or more driver units may be provided, each of which is rotatably mounted eccentrically.
  • the individual driver units with the roller pairs can carry out movements with the storage according to the invention and counter to the casting direction.
  • the driver units are supported according to the invention via load cells (train pressure) against the frame of the Multirollerglättsystems. The resulting from the force movements with and against the casting direction are characterized by the elasticity of the load cells in
  • Measuring range (Hugh range) limited to a few ⁇ . As a result, no effective movements in the direction of the strand normal are exercised.
  • the upper rollers of the driver units are provided with coats of copper in order to accelerate the cooling at the top of the solidifying strand.
  • FIG. 1 shows a schematically illustrated embodiment of a strip casting and rolling plant according to the invention and a strip tension regulation
  • FIG. 21 alternative embodiment
  • FIG. 32 alternative embodiment
  • FIG. 1 Shown in FIG. 1 is a detail of a strip casting and rolling plant according to the invention with a strip tension-reducing strip tension control system.
  • the strip casting and rolling plant consists of a pouring unit not shown here with a feed vessel containing the melt with a horizontal runner and designed as a pouring spout and a two deflection rollers and a circulating cooled conveyor belt 1 having primary cooling zone and at least one subsequent from at least two drivable rollers existing roller unit 4. Shown here is the guide roller 2 of the conveyor belt 1 at the transfer side to the roller unit. 4 According to the invention, the casting unit (Caster) and the following rolling unit 4
  • driver unit 3 3 ', 3 "and roller unit 4
  • a decoupling of driver unit 3, 3 ', 3 "and roller unit 4 is provided, wherein for decoupling a pneumatically operated lifting device 6, as Looper working resilient unit is used.
  • the cast strip 5 is initially removed from the conveyor belt 1 with the master speed vO.
  • the exit speed of the belt 5 is measured by a tachometer TO and the peripheral speed of the driver rollers is synchronized to TO. At this speed, the belt 5 enters the driver units 3, 3 ', 3 "of a
  • the upper roller After running into the pair of rollers of the first driver unit 3, the upper roller is lowered onto the belt 5 with a defined force. Due to existing unsynchronities between the conveyor belt 1 and pair of rollers, the belt 5 is pulled or braked by the conveyor belt 1. Now, a first regulator engages and adjusts the roller pair speed so that the pair of rollers exerts no pulling or pushing forces on the cast band 5.
  • Unsynchronities can be caused, for example, by different roll diameters
  • the speed of the second roller pair of the driver unit 3 ' is now adjusted by a further control device so that here is a tensile force of ideally 0N established.
  • the pairs of reels of the third driver unit 3 "and any further
  • Roller pairs work analogously to the second pair of rollers.
  • Multirollenglättsystems and is pulled by a pilot train cold strand device 7.
  • the last pair of rollers also has a force-measuring device on the drive unit 3 ".
  • the pilot-train cold-line device 7 likewise adjusts to a measured tensile force of 0N on the last pair of rollers and pulls the band 5 over the lifting device 6 into the unrolled roller unit 4 is as a rolling unit 4 only a rolling mill, but it can also be more depending on the requirement.
  • the effect of the lifting device 6 and the rolling unit 4 on the force measurement on the drive unit 3 "of the last pair of rollers of the multi-roll smoothing system is set by means of a further control device such that a tensile force of 0N also sets in here.
  • rollers of the roller unit 4 are placed in an advantageous development on active hydraulic shock absorbers on the strand, so that the influences when immersing the rollers in the band 5 (degree of deformation) are reduced or suppressed.
  • the resulting loop loop gives the rolling speed control sufficient time to correct any unsynchronities.
  • the pilot pulling device 7 already pulls the cast strip 5 with the required force into the first rolling stand of the rolling unit 4, so that no force jumps occur here as well.
  • the contact speed of the rollers is synchronized by means of inlet tachometers prior to placement on the speed of the incoming belt 5. This also prevents interference with the belt 5 is prevented.
  • the looper control can either be force-controlled, height-controlled or designed as a physical looper model.
  • asynchronous motors but also DC motors can be used.
  • DC motors When using asynchronous motors, these are supplied by frequency converters, with each frequency converter containing an internal PID controller.
  • the required tensile force can be specified separately as a setpoint for the pilot train cold-strand device 7 and the tensile force for the rolling unit 4.
  • the multi-scroll smoothness system with the driver units 3, 3 ', 3 " is connected rigidly to the drive of the casting belt 1 by means of superposition transmissions (Ü), whereby very short-term fluctuations of the speed of the cast belt 5 are transferred to the multiroll smoothness system and thus none are produced short-term differential speeds between Band 5 and Multirollenglättsystem with the
  • FIG. 2 shows an alternative control concept. Like reference numerals correspond to like components.
  • the strip tension is measured via another load cell, which is attached to the frame of the casting unit (Castergestell).
  • the force measurement shows the
  • FIG. 3 shows a further alternative.
  • the reaction force of the Castergestells is measured by force cells individually or as a total force.
  • the caster frame is either on these special force measuring systems or hanging attached to these. Again, the reaction force of the caster frame is set to ON with the help of the
  • FIG. 4 shows another possible alternative control concept.
  • the role of Tacho TO is used as Minilooper.
  • the roller is raised a few millimeters above the specified passline.
  • the bending of the cast strip 5 here must be kept low in order to avoid any cracking.
  • the driver units 3, 3 ', 3 " pull "on the belt 5, the" loop bow "will decrease, and this signal too is used according to the invention to control the superposition gear (Ü).
  • control concepts illustrated in FIGS. 1 to 4 serve to set a minimum tension (0N) between the casting unit and the driver unit 3, 3 ', 3 "decoupled therefrom according to the invention and between the driver unit 3, 3', 3" and the roller unit 4 can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne une installation de coulée en bande et de laminage fonctionnant en continu munie d'une régulation de la tension de la bande et composée d'une unité de coulée qui comprend un réservoir d'alimentation contenant la matière fondue et présentant une goulotte de coulée horizontale et une partie sortie réalisée sous la forme d'une buse de coulée, une zone de refroidissement primaire présentant deux rouleaux de renvoi et une bande de coulée refroidie en continu, et au moins une unité de laminage installée en aval et composée d'au moins deux cylindres pouvant être entraînés. Pour réduire au minimum la tension exercée sur la bande coulée, l'unité de coulée et l'unité de laminage installée en aval sont désaccouplées mécaniquement. Pour le désaccouplement, au moins une unité d'entraînement qui présente au moins deux rouleaux pouvant être entraînés et qui entraîne la bande est agencée entre la bande de coulée et l'unité de laminage.
EP13765617.9A 2012-07-03 2013-07-03 Installation de coulée en bande et de laminage fonctionnant en continu Active EP2869945B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13765617T PL2869945T3 (pl) 2012-07-03 2013-07-03 Pracująca w sposób ciągły instalacja do odlewania taśm i walcowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012013425.8A DE102012013425A1 (de) 2012-07-03 2012-07-03 Kontinuierlich arbeitende Bandgieß- und Walzanlage
PCT/DE2013/000383 WO2014005575A2 (fr) 2012-07-03 2013-07-03 Installation de coulée en bande et de laminage fonctionnant en continu

Publications (2)

Publication Number Publication Date
EP2869945A2 true EP2869945A2 (fr) 2015-05-13
EP2869945B1 EP2869945B1 (fr) 2016-11-02

Family

ID=49225979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13765617.9A Active EP2869945B1 (fr) 2012-07-03 2013-07-03 Installation de coulée en bande et de laminage fonctionnant en continu

Country Status (9)

Country Link
US (1) US9630243B2 (fr)
EP (1) EP2869945B1 (fr)
CN (1) CN104395005B (fr)
BR (1) BR112014032671B1 (fr)
DE (1) DE102012013425A1 (fr)
ES (1) ES2613096T3 (fr)
PL (1) PL2869945T3 (fr)
RU (1) RU2603419C2 (fr)
WO (1) WO2014005575A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109158562A (zh) * 2018-09-30 2019-01-08 烟台金晖铜业有限公司 一种刚性接触网专用接触线及其制备方法
JP6927439B2 (ja) * 2018-10-31 2021-09-01 日本製鉄株式会社 制御システム、制御方法、制御装置、及び、プログラム
CN114982184B (zh) * 2020-07-31 2025-06-03 中兴通讯股份有限公司 用于参考信号设计与配置的方法

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Publication number Priority date Publication date Assignee Title
JPS51127988A (en) 1975-04-30 1976-11-08 Ishikawajima Harima Heavy Ind Co Ltd Tension control device having looper and this looper
JPS53146958A (en) * 1977-05-28 1978-12-21 Nippon Steel Corp Rolling method of steel material at high area reduction
DE2926181C2 (de) * 1978-06-29 1986-02-13 Hitachi, Ltd., Tokio/Tokyo Vorrichtung zum Stranggießen
DE3422901C2 (de) * 1984-06-20 1987-02-05 Metacon AG, Zürich Verfahren zum Vergießen einer metallischen Schmelze
JPS62142004A (ja) * 1985-12-16 1987-06-25 Kawasaki Steel Corp 板厚偏差の少ない急冷薄帯の製造方法およびその設備
DE10137246A1 (de) 2001-07-30 2003-02-20 Siemens Ag Walzstraße
DE10206243A1 (de) * 2002-02-15 2003-08-28 Sms Demag Ag Verfahren zum Endloswalzen eines im Querschnitt als Dünnbramme bemessenen, mit Gießgeschwindigkeit erzeugten Metallstrangs, insbesondere eines Stahlstrangs, und zugehörige Stranggießmaschine
AT501044B8 (de) * 2004-10-29 2007-02-15 Voest Alpine Ind Anlagen Verfahren zum herstellen eines gegossenen stahlbandes
DE102005052774A1 (de) 2004-12-21 2006-06-29 Salzgitter Flachstahl Gmbh Verfahren zum Erzeugen von Warmbändern aus Leichtbaustahl
DE102004062636B4 (de) 2004-12-21 2007-05-24 Salzgitter Flachstahl Gmbh Einrichtung zum horizontalen Bandgießen von Stahl
ITRM20050523A1 (it) * 2005-10-21 2007-04-22 Danieli Off Mecc Processo e impianto per la produzione di nastro metallico.
DE202005021771U1 (de) 2005-12-20 2010-02-18 Salzgitter Flachstahl Gmbh Umformbarer Leichtbaustahl
DE102005062854A1 (de) 2005-12-23 2007-07-05 Salzgitter Flachstahl Gmbh Verfahren und Einrichtung zum Erzeugen von metallischen Warmbändern insbesondere aus Leichtbaustahl
DE102007057278A1 (de) * 2007-08-04 2009-02-05 Sms Demag Ag Verfahren und Vorrichtung zur Vergleichmäßigung des Wärmeübergangs eines Gussprodukts während seiner Erstattung auf dem Metalltransportband einer horizontalen Bandgießanlage
DE102007056192A1 (de) * 2007-11-21 2009-05-28 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Bandes aus Metall
EP2406023A1 (fr) 2009-03-11 2012-01-18 Salzgitter Flachstahl GmbH Procédé de production d'un feuillard à chaud et feuillard à chaud en acier léger de construction triplex
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Also Published As

Publication number Publication date
EP2869945B1 (fr) 2016-11-02
CN104395005A (zh) 2015-03-04
CN104395005B (zh) 2016-08-24
WO2014005575A8 (fr) 2014-09-12
PL2869945T3 (pl) 2017-04-28
ES2613096T3 (es) 2017-05-22
WO2014005575A3 (fr) 2014-03-06
WO2014005575A2 (fr) 2014-01-09
RU2603419C2 (ru) 2016-11-27
US9630243B2 (en) 2017-04-25
BR112014032671B1 (pt) 2021-09-28
BR112014032671A2 (pt) 2017-08-01
US20150144288A1 (en) 2015-05-28
RU2015103226A (ru) 2016-08-20
DE102012013425A1 (de) 2014-01-09

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