EP1365874B1 - Procede et dispositif de fabrication de brames minces - Google Patents

Procede et dispositif de fabrication de brames minces Download PDF

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Publication number
EP1365874B1
EP1365874B1 EP01995634A EP01995634A EP1365874B1 EP 1365874 B1 EP1365874 B1 EP 1365874B1 EP 01995634 A EP01995634 A EP 01995634A EP 01995634 A EP01995634 A EP 01995634A EP 1365874 B1 EP1365874 B1 EP 1365874B1
Authority
EP
European Patent Office
Prior art keywords
segment
strand
strip
thickness
segments
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.)
Revoked
Application number
EP01995634A
Other languages
German (de)
English (en)
Other versions
EP1365874A2 (fr
Inventor
Karl Rittner
Jürgen Müller
D. Fernando Vergniory
Armando Villareal Gutierrez
Pedro Sagasti
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
ArcelorMittal Sestao SL
Original Assignee
SMS Demag AG
Aceria Compacta de Bizkaia SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7663722&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1365874(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Demag AG, Aceria Compacta de Bizkaia SA filed Critical SMS Demag AG
Publication of EP1365874A2 publication Critical patent/EP1365874A2/fr
Application granted granted Critical
Publication of EP1365874B1 publication Critical patent/EP1365874B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ

Definitions

  • the invention relates to a method and an apparatus for producing thin slabs, the cross section of which is reduced during solidification, in a continuous casting plant, the strand guide adjoining the mold having a plurality of segments, each with a plurality of pairs arranged opposite rollers, wherein only one of the segments for changing the thickness of having a liquid Kem strand having a wedge-shaped engagable roller portion.
  • a method and a continuous casting of this type are known from DE 44 03 048. It is here immediately below the mold in the directly adjacent first segment a significant reduction in thickness in several steps performed and constructed in the strand interior forced convection.
  • the invention has for its object to provide a method and an apparatus of the type mentioned, which allow an optimized LCR (Liquid Core Reduction) and reduce the investment costs.
  • LCR Liquid Core Reduction
  • This task is achieved for thin slabs in the thickness range of about 40 to 120 mm with a method according to the invention that the strand thickness is reduced below the mold following the first segment by wedge adjustment of the local strand guide rollers with soft transition and mini-reduction. It is hereby implemented the knowledge gained through extensive operating experience that at low thickness reductions, an action on the strand at only one point of the strand guide is sufficient. It no longer needs to be provided with a hydraulic adjustment or adjusting means all segments, which otherwise requires a high investment and maintenance.
  • the first segment can be formed simple and easy to maintain.
  • the simple design of the first segment is because of the high risk of breakthrough there, especially when special steel grades, such as stainless steel, cast, of particular advantage.
  • the simple construction of the arranged between the mold and the reduction region segments also creates in modemizations the requirement to maintain the existing segments for this strand guide area, which limits the modernization effort only to a portion of the continuous casting machine or plant and thus lowers the investment costs.
  • such a mode of operation of the continuous casting can be realized in which the sump or the liquid Kem as far as possible shifted down and Enderstarrung can always be achieved in the same area of the strand guide. This is independent of the respective width of the strand to be cast and the casting speed.
  • the thickness is reduced in the range of 1 to 25 mm, depending on the casting format and the exact location of the mini-reduction, within the strand guide, of the salaried segment.
  • the concrete location of the action of the impact on the strand is thus crucial for the corresponding degree of thickness reduction to be carried out.
  • a pivot point and outlet side preferably force and / or position-controlled adjusting means and is provided on that strand guide element which the mold immediately downstream segment (3) follows. It is thus at least the first of the mold following segment is not used for the thickness reduction and thus remains in his from the outset parallel position of the strand guide rollers, so that no hydraulic jobs are required for this segment.
  • a simpler and less expensive wedge adjustment is achieved as a whole wedge adjustment via adjusting means due to the inlet-side pivot point.
  • a preferred embodiment of the invention provides that the mini-reduction performing segment is divided and only the arranged in the upper part of the segment strand guide rollers are employed against the strand.
  • the segments of the strand guide subsequent, driven rollers of the bending driver are assigned to the lot side adjusting cylinder.
  • These on the lot side - the fixed side is in continuous casting usually in the direction of the pans with the liquid molten steel providing turret - arranged cylinders bring the advantage that they automatically adjust to the thickness of the strand.
  • the oscillatingly driven mold 2 shown in FIGS. 1 to 3 consisting of a plurality of segments 3 and 4 or n, respectively, and the bending guide 6 adjoining it in the strand extension direction 5.
  • the segments 3, 4 and n are provided with numerous supporting the strand 7 guide rollers 8.
  • the bending driver 6 has successive, mutually opposite pairs of driven rollers 9a, 9b, each lying on the lot side I of the continuous casting 1
  • Biegetrreiber rollers 9b hydraulic adjusting cylinder 10 are assigned.
  • Some of the segments of the strand guide are assigned from the fixed side II of the continuous casting plant 1 with their piston rods to roller carriers 11 and 11a, 11b attacking actuating cylinder 12.
  • the mini reduction in the thickness of the strand 7 in the region of the liquid core 13 is carried out directly in the segment 4 following the first segment 3, specifically only by means of the roller carrier 11a of this functionally divided segment 4.
  • the roller carrier 11 a has inlet side a pivot point 14 and is pivoted by means of the bottom of the roller carrier 11 a engaging actuating cylinder 12 in the wedge position shown to reduce the thickness of the strand 7.
  • By means of the roller carrier 11b - or to the or the roller carrier 11 of the adjoining sub-segment or the following segments n - attacking actuating cylinder 12 is achieved over a very long distance continuous parallel segment employment and thus a large operating window.
  • the final staring - cf. the sump tip 15 - of the strand 7 takes place in the region of the last segment n, but can easily continue to move up or down there over a large area, depending on the respective casting conditions and specifications.
  • the last segment n of the strand guide is subdivided according to FIG. 2, and the upper roller carrier 11a is made wedge-shaped about the pivot point 14.
  • the upper roller carrier 11a is made wedge-shaped about the pivot point 14.
  • All versions have in common that at least the mold 2 subsequent first segment 3 - as shown in FIGS. 2 and 3 also continue the or the following segments 4 - get along without hydraulic jobs, which reduces the investment and maintenance costs decided. Especially for the first segment 3, which is particularly vulnerable to breakthrough, thus a maintenance-friendly training of the continuous casting plant 1 and its strand guide is achieved.

Claims (6)

  1. Procédé de fabrication de brames minces, dont la section transversale est réduite pendant la solidification, dans une installation de coulée continue (1) dont le corset de guidage se raccordant à la lingotière (2) présente plusieurs segments (3, 4, n) comportant chacun plusieurs paires de rouleaux (8) disposés les uns en face des autres, seul un des segments (3, 4, n) de modification d'épaisseur de la barre (7) présentant un noyau liquide (13) comportant une section à rouleaux (11a) positionnable à la manière d'une cale,
    caractérisé en ce que
    l'épaisseur de barre est réduite en dessous du premier segment (3) suivant la lingotière (2) par positionnement à la manière de cales des rouleaux de corset de guidage (8) s'y trouvant avec une transition douce et une mini-réduction.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    l'épaisseur est réduite dans une plage de 1 à 25 mm en fonction du format de coulée et de l'emplacement précis du segment positionné (4 ou n) réalisant la mini-réduction à l'intérieur du corset de guidage.
  3. Procédé de fabrication de brames minces, dont la section transversale est réduite pendant la solidification, dans une installation de coulée continue (1) dont le corset de guidage se raccordant à la lingotière (2) présente plusieurs segments (3, 4, n) comportant chacun plusieurs paires de rouleaux (8) disposés les uns en face des autres, seul un des segments (3, 4, n) de modification d'épaisseur de la barre (7) présentant un noyau liquide (13) comportant une section à rouleaux (11a) positionnable à la manière d'une cale, qui possède côté entrée un point de rotation (14) et des moyens de réglage (12) disposés côté sortie, notamment pour la réalisation du procédé selon la revendication 1,
    caractérisé en ce que
    la section à rouleaux (11a) positionnable à la manière d'une cale est réalisée sur le segment de corset de guidage (4, n) qui est disposé sur le segment placé directement en aval de la lingotière (2) et servant à la mini-réduction de la barre (7).
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    les moyens de réglage (12) sont régulés au niveau puissance et/ou position.
  5. Dispositif selon la revendication 3 ou 4,
    caractérisé en ce que
    le segment (4 ou n) réalisant la mini-réduction de la barre est subdivisé et que seul les rouleaux de corset de guidage disposés dans le segment de calage supérieur (11 a) sont positionnés contre la barre (7).
  6. Dispositif selon une des revendications 3 à 5,
    caractérisé en ce que
    des cylindres d'approche (10) sont associés du côté flottant (I) aux rouleaux entraînés (9b) de l'entraînement de cintrage (6) qui se raccordent aux segments (3, 4 ou n) du corset de guidage.
EP01995634A 2000-11-16 2001-11-15 Procede et dispositif de fabrication de brames minces Revoked EP1365874B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10057160A DE10057160A1 (de) 2000-11-16 2000-11-16 Verfahren und Vorrichtung zum Herstellen von Dünnbrammen
DE10057160 2000-11-16
PCT/EP2001/013229 WO2002040201A2 (fr) 2000-11-16 2001-11-15 Procede et dispositif de fabrication de brames minces

Publications (2)

Publication Number Publication Date
EP1365874A2 EP1365874A2 (fr) 2003-12-03
EP1365874B1 true EP1365874B1 (fr) 2006-01-25

Family

ID=7663722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01995634A Revoked EP1365874B1 (fr) 2000-11-16 2001-11-15 Procede et dispositif de fabrication de brames minces

Country Status (14)

Country Link
US (1) US7069974B2 (fr)
EP (1) EP1365874B1 (fr)
JP (1) JP3884383B2 (fr)
KR (1) KR100819123B1 (fr)
CN (1) CN1277636C (fr)
AT (1) ATE316431T1 (fr)
AU (1) AU2002226335A1 (fr)
CA (1) CA2428528C (fr)
DE (2) DE10057160A1 (fr)
ES (1) ES2257466T3 (fr)
RU (1) RU2280532C2 (fr)
UA (1) UA76732C2 (fr)
WO (1) WO2002040201A2 (fr)
ZA (1) ZA200303533B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007016575A1 (de) 2007-04-07 2008-10-09 Sms Demag Ag Strangführungsvorrichtung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004002783A1 (de) * 2004-01-20 2005-08-04 Sms Demag Ag Verfahren und Einrichtung zum Bestimmen der Lage der Sumpfspitze im Gießstrang beim Stranggießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen
DE102007006458A1 (de) * 2007-02-05 2008-08-07 Sms Demag Ag Stranggießeinrichtung zum Erzeugen von Brammen aus Stahl
ITRM20070150A1 (it) * 2007-03-21 2008-09-22 Danieli Off Mecc Processo e impianto per la produzione di nastro metallico
AT506835B1 (de) * 2008-05-16 2010-09-15 Siemens Vai Metals Tech Gmbh Verfahren zum sichern eines anfahrstranges in einer stranggiessanlage und stranggiessanlage mit einem anfahrstrang
US7931847B2 (en) * 2009-08-26 2011-04-26 Microsoft Corporation Injection molding of part having nonuniform thickness
DE102013214939A1 (de) * 2013-07-30 2015-02-05 Sms Siemag Ag Gießwalzanlage zum Herstellen von Metallbändern
US20160108488A1 (en) * 2014-10-15 2016-04-21 Sms Siemag Ag Process for producing grain-oriented electrical steel strip and grain-oriented electrical steel strip obtained according to said process
IT201600116859A1 (it) * 2016-11-18 2018-05-18 Danieli Off Mecc Dispositivo di colata continua per bramme sottili
IT201800009259A1 (it) * 2018-10-08 2020-04-08 Danieli Off Mecc Metodo di produzione di un nastro metallico, ed impianto di produzione che implementa detto metodo

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
AT392029B (de) * 1988-02-01 1991-01-10 Hulek Anton Stranggiessanlage zum stranggiessen von stahl
DE4010966A1 (de) * 1990-04-05 1991-10-10 Schloemann Siemag Ag Vorrichtung zur stuetzung eines metallgiessstranges, insbesondere zur weichreduktion bei einer vorband-giessanlage
JPH0515956A (ja) * 1991-07-11 1993-01-26 Kobe Steel Ltd 連続鋳造方法
AT398396B (de) * 1993-02-16 1994-11-25 Voest Alpine Ind Anlagen Verfahren zum herstellen eines bandes, vorstreifens oder einer bramme
AT401744B (de) 1993-10-14 1996-11-25 Voest Alpine Ind Anlagen Verfahren und anlage zum stranggiessen
DE4403048C1 (de) * 1994-01-28 1995-07-13 Mannesmann Ag Stranggießanlage und Verfahren zur Erzeugung von Rechteck-Dünnbrammen
US5577754A (en) * 1994-04-26 1996-11-26 Hwu; Chyn-Herng Anti-reverse sliding motion mechanism
JP3008821B2 (ja) 1994-07-29 2000-02-14 住友金属工業株式会社 薄鋳片の連続鋳造方法および装置
US6102101A (en) * 1995-10-18 2000-08-15 Sumitomo Metal Industries, Ltd. Continuous casting method and apparatus thereof
DE19639297C2 (de) * 1996-09-25 2000-02-03 Schloemann Siemag Ag Verfahren und Vorrichtung für Hochgeschwindigkeits-Stranggießanlagen mit einer Strangdickenreduktion während der Erstarrung
DE19720768C1 (de) * 1997-05-07 1999-01-14 Mannesmann Ag Verfahren und Vorrichtung zum Erzeugen von Brammen aus Stahl
DE19933635A1 (de) * 1999-07-17 2001-01-18 Sms Demag Ag Verfahren und Vorrichtung zur Formatdickenänderung des Gußstranges einer Stranggießanlage im kontinuierlichen Gießbetrieb
DE10011689A1 (de) * 2000-03-10 2001-09-13 Sms Demag Ag Verfahren zum Stranggiessen von Brammen und insbesondere von Dünnbrammen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007016575A1 (de) 2007-04-07 2008-10-09 Sms Demag Ag Strangführungsvorrichtung
EP1980344A1 (fr) 2007-04-07 2008-10-15 SMS Demag AG Dispositif de guidage de barre

Also Published As

Publication number Publication date
JP2004531394A (ja) 2004-10-14
ZA200303533B (en) 2004-02-09
RU2280532C2 (ru) 2006-07-27
US7069974B2 (en) 2006-07-04
AU2002226335A1 (en) 2002-05-27
JP3884383B2 (ja) 2007-02-21
US20040035550A1 (en) 2004-02-26
CA2428528C (fr) 2009-07-07
KR100819123B1 (ko) 2008-04-02
WO2002040201A2 (fr) 2002-05-23
EP1365874A2 (fr) 2003-12-03
WO2002040201A3 (fr) 2003-09-12
ATE316431T1 (de) 2006-02-15
ES2257466T3 (es) 2006-08-01
KR20030097792A (ko) 2003-12-31
CN1549753A (zh) 2004-11-24
UA76732C2 (uk) 2006-09-15
DE10057160A1 (de) 2002-05-29
CN1277636C (zh) 2006-10-04
DE50108810D1 (de) 2006-04-13
RU2003117440A (ru) 2005-01-20
CA2428528A1 (fr) 2002-05-23

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