EP1981660B1 - Procédé destinés à la production de bandes métalliques laminées à chaud, notammment de bandes en acier à qualité de surface élevée - Google Patents

Procédé destinés à la production de bandes métalliques laminées à chaud, notammment de bandes en acier à qualité de surface élevée Download PDF

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Publication number
EP1981660B1
EP1981660B1 EP06841130A EP06841130A EP1981660B1 EP 1981660 B1 EP1981660 B1 EP 1981660B1 EP 06841130 A EP06841130 A EP 06841130A EP 06841130 A EP06841130 A EP 06841130A EP 1981660 B1 EP1981660 B1 EP 1981660B1
Authority
EP
European Patent Office
Prior art keywords
strip
oscillation
different
hot
cast
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.)
Not-in-force
Application number
EP06841130A
Other languages
German (de)
English (en)
Other versions
EP1981660A1 (fr
Inventor
Christian Bilgen
Tilmann BÖCHER
Wolfgang Henning
Jürgen GAYDOUL
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 Siemag AG
Hermetik Hydraulik AB
Original Assignee
SMS Siemag AG
Hermetik Hydraulik AB
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, Hermetik Hydraulik AB filed Critical SMS Siemag AG
Publication of EP1981660A1 publication Critical patent/EP1981660A1/fr
Application granted granted Critical
Publication of EP1981660B1 publication Critical patent/EP1981660B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • 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
    • B22D11/053—Means for oscillating the moulds
    • 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
    • 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
    • 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
    • B21B13/22—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting, i.e. in-line rolling of steel

Definitions

  • the invention relates to a method for producing hot-rolled metal, in particular high-quality steel material strip from slab or flat thin strands cast in a continuous casting process by means of a hydraulically oscillating continuous casting mold, which descaled at its strand surface, heated to rolling temperature and heated in a multi-stand hot-rolled strip.
  • Walz Identification is finished with low strip thicknesses, the casting strand after emerging from a strand guide, before entering a heat balance furnace and / or after exiting a heat balance furnace and entering the hot strip mill at one or both strand surfaces by a plurality of rotating nozzles from which printing fluid recurring sprayed on a respective same surface area with high applied pressure, freed of scale and / or casting powder and the oscillation marks are deeply cleaned, as by the WO-A 00/10741 A known.
  • Such a method is similar to the DE 43 28 303 C2 known. However, it is not assumed that there is a continuously cast slab or thin slab cross section and the rotor descaling is essentially applied to rolling stock and thus does not take into account the special manufacturing process by continuous casting. In addition, the depth of ablation is not sufficient to detect not only invisible tinder but also any oscillation mark caused by its manufacture. In addition, caused by a very high amount of water an undesirably high cooling of the rolling stock.
  • a first descaling device which may consist of a scale washer of conventional design and a second descaling device with rotating nozzles.
  • the invention has for its object, in addition to the application of the rotating Entzunderns previously included not included parameters that are given by the continuous casting.
  • a further embodiment advantageously provides that the temperature losses of the cast strand are kept low via a pressurization of the rotating nozzles regulated with regard to the temperature level of the casting or rolling train. As a result, there is a reduction in the temperature losses of the slabs and thin strands, resulting in much better conditions for hot rolling the ultrathin Endwalzdicken and energy Erspamis are connected.
  • a cast-rolling plant 1 ( Fig. 1 ), which in particular represents a CSP plant (Compact Steel Plant), consists of a continuous casting apparatus 2, in which liquid metal, in particular liquid steel material, is cast by means of a continuous casting mold 9.
  • the continuous casting mold 9 is provided with a hydraulically oscillating drive 9a (FIG. Fig. 2 ) Mistake.
  • On the Stranggleßkokllle 9 follows in strand withdrawal 11 a strand guide 3, a temperature compensation furnace 4, if provided, a furnace ferry 5 and a multi-stand hot strip finishing train 6 and behind a reel 8 for winding the tape. 7
  • a device 14 with rotating nozzles 15 (FIGS. Fig. 4 ), from which pressure media (usually liquid, such as, for example, water) with a high application pressure is repeatedly directed to a respective same surface location.
  • pressure media usually liquid, such as, for example, water
  • a cast-rolling plant 1 ( Fig. 1 ), which is in particular a CSP plant (Compact Steel Plant), consists of a continuous casting apparatus 2, in which liquid metal, in particular liquid steel material, is cast by means of a continuous casting mold 9.
  • the continuous casting mold 9 is provided with a hydraulically oscillating drive 9a (FIG. Fig. 2 ) Mistake.
  • On the continuous casting mold 9 follows in strand withdrawal direction 11, a strand guide 3, a temperature compensation furnace 4, if provided, a furnace ferry 5 and a multi-stand hot strip finishing train 6 and behind a reel 8 for winding the tape. 7
  • a device 14 with rotating nozzles 15 (FIGS. Fig. 4 ), from which print media (usually liquid, such as, for example, water) with a high application pressure is directed repeatedly to a respective same surface location.
  • print media usually liquid, such as, for example, water
  • the hydraulically oscillating continuous casting mold 9 is moved in a plurality of different oscillation curves 16, 17, 18, so that a respectively different oscillation profile 16a, 17a, 18a is produced for the respectively selected casting material.
  • the oscillation curves 16, 17, 18 can, by different Kokillenhübe, different casting speed, different leading Kokillen Oberen on the downward stroke (so-called negative strip) different waveforms (eg, sine waves) u. Like. Be obtained.
  • the pressurization of the rotating nozzle 15 with hydraulic fluid 19 can be done with significantly less pressure medium (pressure medium) than has been used in so-called. Zundericaschem, where equal ratios, ie parameters of the opposing processes are based.
  • the temperature losses of the cast strand 2b are kept as low as possible by way of a temperature level of the casting or rolling train (2b) to be observed with regard to the pressurized medium.
  • a plurality of nozzles 15 for the pressure medium are on a rotor 20 ( Fig. 4 ) and several rotors 20 have attached to the rotor circumference 20a nozzles 15 for pressure medium and are arranged in a row of nozzles 21 transversely to the course of the casting or rolling train 2b. Advantages also result from a plurality of such rows of nozzles 21, smaller nozzle jets than can be used in a single row of nozzles 21.
  • the rotor descaling may be applied to a hot strip rolling mill 6 having seven or more finish rolling stands 6a before the entry of the rolled strip into the first finishing stand 6a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Laminated Bodies (AREA)

Claims (3)

  1. Procédé pour la production d'une bande métallique laminée à chaud, en particulier d'une bande en acier (7), présentant une haute qualité de surface, à partir de brames ou de barres minces et plates (2, 2a) coulées dans un procédé de coulée continue à l'aide d'une coquille de coulée continue (9) oscillant par voie hydraulique, qui est décalaminée à sa surface (2c), échauffée à la température de laminage et laminée jusqu'à la finition avec de faibles épaisseurs de bande dans un train de laminage à chaud (6) à plusieurs cages, dans lequel la barre coulée (2a), après sa sortie d'un guidage de barre (3), avant son entrée dans un four d'égalisation thermique (4) et/ou après sa sortie hors d'un four d'égalisation thermique (4) et son entrée dans le train de laminage à chaud (6) est attaquée par une pulvérisation à haute pression depuis l'une des surfaces de la barre (2c) ou les deux au moyen de plusieurs buses en rotation (15) hors desquelles un liquide sous pression (19) est pulvérisé de façon répétée sur un même emplacement de surface avec une haute pression d'attaque, libérée de calamine et/ou de la poudre de coulée, et les marques d'oscillation sont nettoyées en profondeur,
    caractérisé en ce que
    la coquille de coulée continue (9) oscillant par voie hydraulique est déplacée sur plusieurs courbes d'oscillation différentes (16, 17, 18), lesdites courbes d'oscillation (16, 17, 18) étant obtenues par des courses de levée différentes de la coquille, par différentes vitesses de coulée, par différentes vitesses d'avance de la coquille lors de la course descendante et par différentes formes de courbes, et en ce que le nettoyage en profondeur des marques d'oscillation est exécuté par réglage du tracé d'oscillation déterminé pour chaque matériau coulé.
  2. Procédé selon la revendication 1,
    caractérisé en ce que l'alimentation des buses rotatives (15) avec un liquide sous pression (19) est effectuée avec l'une quantité de fluide sous pression nettement plus faible que celle qu'on emploie jusqu'ici dans ce que l'on appelle des laveurs à calamine, pour les mêmes paramètres du processus de coulée ou de laminage.
  3. Procédé selon l'une des revendications 1 ou 2,
    caractérisé en ce que les pertes de température de la barre coulée (2b) sont maintenues faibles grâce à une alimentation, régulée à l'égard du niveau de température de la barre coulée ou laminée (2b), des buses rotatives (15) avec le fluide sous pression.
EP06841130A 2006-02-02 2006-12-22 Procédé destinés à la production de bandes métalliques laminées à chaud, notammment de bandes en acier à qualité de surface élevée Not-in-force EP1981660B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006004688A DE102006004688A1 (de) 2006-02-02 2006-02-02 Verfahren und Giess-Walz-Anlage zum Herstellen von warmgewalztem Metall - insbesondere Stahlwerkstoff-Band mit hoher Oberflächengüte
PCT/EP2006/012459 WO2007087886A1 (fr) 2006-02-02 2006-12-22 Procédé et installation de coulée et de laminage direct destinés à la production de bandes métalliques laminées à chaud, notammment de bandes en acier à qualité de surface élevée

Publications (2)

Publication Number Publication Date
EP1981660A1 EP1981660A1 (fr) 2008-10-22
EP1981660B1 true EP1981660B1 (fr) 2012-07-04

Family

ID=37744383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06841130A Not-in-force EP1981660B1 (fr) 2006-02-02 2006-12-22 Procédé destinés à la production de bandes métalliques laminées à chaud, notammment de bandes en acier à qualité de surface élevée

Country Status (18)

Country Link
US (1) US20120048501A1 (fr)
EP (1) EP1981660B1 (fr)
JP (1) JP2009525182A (fr)
KR (1) KR20080106891A (fr)
CN (1) CN101410198B (fr)
AR (1) AR059290A1 (fr)
AU (1) AU2006337463B2 (fr)
BR (1) BRPI0621300A2 (fr)
CA (1) CA2640751C (fr)
DE (1) DE102006004688A1 (fr)
EG (1) EG25282A (fr)
ES (1) ES2389860T3 (fr)
MX (1) MX2008009949A (fr)
RU (1) RU2414978C2 (fr)
TW (1) TWI381894B (fr)
UA (1) UA95100C2 (fr)
WO (1) WO2007087886A1 (fr)
ZA (1) ZA200805313B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT507663B1 (de) 2009-04-09 2010-07-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zum aufbereiten von warmwalzgut
CN101850409B (zh) * 2010-06-08 2012-02-29 攀钢集团钢铁钒钛股份有限公司 一种连铸方法
CN106180218A (zh) * 2014-12-05 2016-12-07 财团法人金属工业研究发展中心 用于热轧钢胚除锈与挡水的装置及其方法
DE102015206393A1 (de) * 2015-04-10 2016-10-13 Sms Group Gmbh Vorrichtung zum Reinigen der Oberfläche eines Gegenstandes
ES2681486T3 (es) * 2015-12-23 2018-09-13 Hammelmann GmbH Dispositivo y método para la limpieza de un cuerpo con una capa superficial que ha de ser eliminada
DE102016217561A1 (de) 2016-03-18 2017-09-21 Sms Group Gmbh Vorrichtung und Verfahren zum Entzundern eines bewegten Werkstücks
EP3573772B1 (fr) * 2017-01-24 2021-03-03 Primetals Technologies Austria GmbH Installation de coulée et procédé de traitement d'une pièce usinée à l'aide de celle-ci
KR102170939B1 (ko) * 2018-11-27 2020-10-29 주식회사 포스코 압연소재 처리설비 및 처리방법
CN110227719A (zh) * 2019-07-04 2019-09-13 攀钢集团攀枝花钢钒有限公司 用于低合金热轧钢板表面起皮缺陷的控制方法
CN111570525A (zh) * 2020-05-08 2020-08-25 马鞍山钢铁股份有限公司 一种与铸坯质量优化匹配的红送热装方法
DE102021213238A1 (de) * 2021-11-24 2023-05-25 Sms Group Gmbh Verfahren zum Herstellen eines Gießstrangs

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JPS59220262A (ja) * 1983-05-31 1984-12-11 Nisshin Steel Co Ltd マルテンサイト系ステンレス鋼の連続鋳造法
ES2108170T3 (es) 1992-07-31 1997-12-16 Danieli Off Mecc Dispositivo de descascarillado que emplea agua.
DE4328303C2 (de) 1992-12-23 1997-02-13 Juergen Gaydoul Einrichtung zum Entzundern von warmem Walzgut
JP2845073B2 (ja) * 1993-01-29 1999-01-13 株式会社日立製作所 熱間圧延設備及び鋳造熱間圧延連続設備
AT398396B (de) 1993-02-16 1994-11-25 Voest Alpine Ind Anlagen Verfahren zum herstellen eines bandes, vorstreifens oder einer bramme
ATE163370T1 (de) 1993-05-17 1998-03-15 Danieli Off Mecc Produktionslinie zur herstellung von bändern und/oder blechen
US5697241A (en) * 1993-08-23 1997-12-16 Voest-Alpine Industrieanlagenbau Gmbh Rolling arrangement
JP3307771B2 (ja) * 1993-08-23 2002-07-24 ハンス‐ユルゲン、ガイドール 熱間圧延鋼板のデスケーリング手段
DE4341719C2 (de) * 1993-12-03 2001-02-01 Mannesmann Ag Einrichtung zum Stranggießen von Stahl
IT1267916B1 (it) * 1994-03-31 1997-02-18 Danieli Off Mecc Procedimento per la produzione di nastro partendo da bramme sottili e relativo impianto
JP3174457B2 (ja) * 1994-05-17 2001-06-11 株式会社日立製作所 連鋳直結熱間圧延設備およびその圧延方法
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AT409227B (de) 1998-08-17 2002-06-25 Voest Alpine Ind Anlagen Verfahren und anlage zur herstellung von warmgewalztem stahlband aus einer stahlschmelze
DE10143868A1 (de) * 2001-09-07 2003-03-27 Sms Demag Ag Brammenreinigung vor dem Rollenherdofen einer Mini-Mill

Also Published As

Publication number Publication date
JP2009525182A (ja) 2009-07-09
KR20080106891A (ko) 2008-12-09
ES2389860T3 (es) 2012-11-02
CN101410198A (zh) 2009-04-15
CN101410198B (zh) 2011-08-10
US20120048501A1 (en) 2012-03-01
WO2007087886A1 (fr) 2007-08-09
RU2414978C2 (ru) 2011-03-27
AU2006337463A1 (en) 2007-08-09
TW200732060A (en) 2007-09-01
AU2006337463A2 (en) 2008-11-06
DE102006004688A1 (de) 2007-08-16
ZA200805313B (en) 2009-09-30
TWI381894B (zh) 2013-01-11
CA2640751A1 (fr) 2007-08-09
RU2008135453A (ru) 2010-03-10
UA95100C2 (ru) 2011-07-11
MX2008009949A (es) 2009-01-16
AU2006337463B2 (en) 2012-04-05
EG25282A (en) 2011-12-05
AR059290A1 (es) 2008-03-26
CA2640751C (fr) 2013-03-12
BRPI0621300A2 (pt) 2011-07-05
EP1981660A1 (fr) 2008-10-22

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