EP2049286A1 - Lingotière de coulée continue pour métal liquide, notamment matériau liquide d'aciérie - Google Patents

Lingotière de coulée continue pour métal liquide, notamment matériau liquide d'aciérie

Info

Publication number
EP2049286A1
EP2049286A1 EP07786460A EP07786460A EP2049286A1 EP 2049286 A1 EP2049286 A1 EP 2049286A1 EP 07786460 A EP07786460 A EP 07786460A EP 07786460 A EP07786460 A EP 07786460A EP 2049286 A1 EP2049286 A1 EP 2049286A1
Authority
EP
European Patent Office
Prior art keywords
thickness
section
continuous casting
coolant channel
casting mold
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
EP07786460A
Other languages
German (de)
English (en)
Other versions
EP2049286B1 (fr
Inventor
Hans Streubel
Gereon Fehlemann
Albrecht Girgensohn
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 Demag 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 Demag AG filed Critical SMS Demag AG
Publication of EP2049286A1 publication Critical patent/EP2049286A1/fr
Application granted granted Critical
Publication of EP2049286B1 publication Critical patent/EP2049286B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0408—Moulds for casting thin slabs

Definitions

  • the invention relates to a continuous casting mold for liquid metals, in particular for liquid steel materials, with surrounding for the supply and discharge of coolant from water tanks, the G confusequerites parallel and / or curved course limiting Kokillenbreitputplatten and Kokillenschmal- side plates of copper materials, at the cold side of a variety is arranged by coolant channels, which have a minimum coolant channel cross-section in the G recognizeador Symposium while reducing the thickness of the respective Kokillenbreitetterplatte.
  • the temperature of the mold surface on the hot side which is in contact with the liquid steel or the solidifying strand shell, is also considerably different.
  • the locally higher surface temperatures on the hot side of the mold also lead to higher wear in these areas, which can manifest itself in local distortions or in cracking.
  • BESTATIGUNGSKOPIE If the wear occurring on the hot side of the mold exceeds a certain level, the entire surface of the mold plate including the less stressed or usable surfaces must be reworked, which can be done only by milling or another cutting process.
  • the initially described continuous casting mold is known from DE 102 26 214 A1.
  • the existing there from copper material cassette-like inserts rest on steel insert plates and can be replaced.
  • the thickness of the copper plates between the coolant and the copper plate hot side over the width and / or over the height of the mold is different.
  • the coolant channel cross-section is designed as a minimum thickness in height in GelloLite #2 and in the lower regions of the coolant channel cross-section is always larger, and the lower portion of the thickness of the copper plate is always made larger. All these measures can not prevent the above-described wear of the copper plates after a number of casts.
  • the invention has for its object to reduce different heat loads of the continuous casting mold within the Kokillenbreitrageplatte and thereby reduce wear.
  • the surface temperatures of the Kokillenh constituseite be reduced in thermally highly stressed areas and thereby both the mechanical stress on the strand shell is reduced and the service life of the continuous casting mold improved.
  • This positive effect of a noticeable reduction in chill broadside plate Surface temperatures are reached when the distance between the cooling channels and the surface when the mold is new is reduced by at least 20%.
  • the thickness is usually 25 mm when new. This value is now reduced by at least 5 mm (20%) to 20 mm.
  • coolant channel cross section in the G confusetik #2 is reduced proportionally to reduce the thickness of Kokillenbreit confuseplatte.
  • the coolant channel cross section is not reduced more than 80% of the new state of the initial coolant channel cross section.
  • Another embodiment provides that both the reduction of the thickness of Kokillenbreitetterplatte and the reduction of theisseritzkanal- cross section are made in dependence on an unequal position of the respective coolant channel in the width direction.
  • the chill broad side plates (2) between 5 and 10 mm to a maximum of 15 mm in 3-10 reworks in thickness (6) is reduced, with a single reworking consists of a copper material removal of 0.3 to 1, 5 mm, a maximum of 3 mm.
  • the further embodiment provides that the coolant channel cross-section is formed in the G confuse Spiegel #2 and to Kokillenausgang by means of each one fixed to the cold side filler of normal temperature resistant material.
  • the filler for reducing the coolant channel cross-section is adjustable.
  • An alternative embodiment of the pouring space provides that at least the Kokil lenbreitumblen are formed as cassette plates, which abut on the cold side on cooled adapter plates.
  • a further development is based on the fact that a separate displacement body is provided on the adapter plate to form the minimum coolant channel cross-section.
  • the displacer can be formed with different profiles, provided and exchangeably secured.
  • 1 is a perspective view of the continuous casting mold, which releases the view into the interior by omitting the front Kokillenbreitroughplatte into which the dip tube is lowered
  • 2 shows a plane, vertical partial section through a chill broadside plate, which shows the thickness (n) of the copper plate in conjunction with the ratios of the coolant channel over the mold height
  • FIG. 3 shows the plane, vertical partial section as in FIG. 2 with an adapter plate
  • Fig. 4 is a view against the cold side of Kokillenbreitputplatte with removed filler or remote adapter plate.
  • the continuous casting mold 1 (FIG. 1) is formed by two Kokillen- width side plates 2 delimiting the casting cross-section 1b and small end plates 3 located at the ends, wherein a coolant 1a (such as water) under pressure through coolant channels 4 (FIGS 4) is guided.
  • a coolant 1a such as water
  • coolant channels 4 (FIGS 4)
  • 5 different areas 5a and 5b of the heat flux density are formed by the influence of a dip tube 12 in G faux Spiegel Buffalo
  • the heat flux density in the regions 5a is higher than in the region 5b.
  • the thickness 6 of Kokillenbreitlopeplatte 2 which is usually in the new state between 20 to 40 mm or more, to be set as the usual standard thickness of 100%.
  • the corrected new condition in the region of the casting mirror, as shown is only 80%, and a further reduction of the thickness 6 reduced by 80% at the beginning is a further reduction of the thickness 6, which is reduced by 80% at the beginning to 6 mm (FIG. 2) ).
  • to further improve the cooling effect of thehariffenal- cross section 7 in G confusetik Scheme 5 can be reduced proportionally to reduce the thickness of 6 Kokillenbreitlope 2 ( Figure 2).
  • These measures are applicable to all currently used types of so-called CSP funnel molds and to conventional mold plates. Here can by more milling out of the minimized coolant channel cross-section 7 between the hot side and the coolant in the
  • the coolant channel cross section 7 is initially not reduced by more than 80% of the new state of the respective initial coolant channel cross section.
  • the coolant channel cross section 7 is formed in the mold level region 5 and up to the mold outlet 9 by means of a respective fixed on the cold side filler 10 made of normal temperature resistant material.
  • the filler can be at least to reduce the coolant channel cross-section 7 adjustable.
  • FIG. 3 shows a design of the continuous casting mold 1 for a two-part cassette mold, again showing the mold level region 5 with the region 5 a of the higher heat flux density in the casting direction 13 within the funnel-shaped extension 11.
  • the so-called cassette mold consists essentially of the Kokillenbreitetterplatte 2 described above and a rear adapter plate 14, between which the coolant passage 4 extends, through which the coolant is supplied and discharged 1a.
  • the individual coolant channels 4 can be milled deeper into the material in the area below the casting mirror 5.
  • Correspondingly shaped displacement bodies 15 reduce the coolant channel cross section 7 and increase the coolant speed in this area.
  • Fig. 3 at least the Kokillenbreitputplatten 2 are formed as cassette plates, which can be upgraded on the cold side on cooled adapter plates 14, which do not necessarily consist of copper materials, abut.
  • a separate displacement body 15 is provided on the adapter plate 14 to form the minimum coolant channel cross section 7.
  • the displacer 15 is formed with different profiles and can be stored and exchangeable.
  • the coolant channels 4 are arranged in the widthwise direction 8 in the Kokillenbreitetterplatte 2 in groups. Both the reduction of the thickness 6 of Kokillenbreitquaintplatten 2 and the reduction of theisseritzkanal- cross section 7 is made in dependence on an unequal position of the respective coolant channel 4 in the width direction 8. Groups of different numbers of coolant channels 4 can be formed. Between the vertical rows of coolant channels 4 fastening threads 16 are arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention concerne une lingotière de coulée continue (1) pour le coulage de métaux liquides, notamment de matériaux liquides d'aciérie, ladite lingotière présentant une densité de flux thermique distribuée de manière inhomogène à sa surface. Une homogénéisation de la densité de flux thermique peut être obtenue si la distance entre le côté chaud et le canal de refroidissement (= épaisseur (6) de la plaque du côté large de la lingotière (2)), étant à l'état neuf l'épaisseur normale courante (100 %), est réduite de 20 % à 80 % et une réduction supplémentaire est obtenue par un dernier traitement ultérieur de l'épaisseur (6) déjà réduite de 80 % à une épaisseur finale (6a) de 5 mm.
EP07786460.1A 2006-08-05 2007-07-31 Lingotière de coulée continue pour métal liquide, notamment matériaux liquides d'aciérie Not-in-force EP2049286B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006036708A DE102006036708A1 (de) 2006-08-05 2006-08-05 Stranggießkokille für flüssige Metalle, insbesondere für flüssige Stahlwerkstoffe
PCT/EP2007/006763 WO2008017402A1 (fr) 2006-08-05 2007-07-31 Lingotière de coulée continue pour métal liquide, notamment matériau liquide d'aciérie

Publications (2)

Publication Number Publication Date
EP2049286A1 true EP2049286A1 (fr) 2009-04-22
EP2049286B1 EP2049286B1 (fr) 2017-12-27

Family

ID=38626857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07786460.1A Not-in-force EP2049286B1 (fr) 2006-08-05 2007-07-31 Lingotière de coulée continue pour métal liquide, notamment matériaux liquides d'aciérie

Country Status (5)

Country Link
US (1) US20100000704A1 (fr)
EP (1) EP2049286B1 (fr)
CN (1) CN101489703B (fr)
DE (1) DE102006036708A1 (fr)
WO (1) WO2008017402A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008032672A1 (de) 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Stranggießkokille
DE102008060507A1 (de) * 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Temperaturmessung in einer Kokille durch ein faseroptisches Messverfahren
WO2010015399A1 (fr) * 2008-08-06 2010-02-11 Sms Siemag Ag Lingotière de coulée continue pour métal en fusion, en particulier pour acier en fusion
ITUB20154787A1 (it) * 2015-11-06 2017-05-06 Milorad Pavlicevic Cristallizzatore perfezionato e lingottiera adottante detto cristallizzatore
DE102021215030A1 (de) * 2021-12-23 2023-06-29 Sms Group Gmbh Breitseitenkokillenplatte, Stranggießkokille und Verfahren zum Herstellen einer Breitseitenkokillenplatte

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3411359A1 (de) * 1984-03-28 1985-10-31 Mannesmann AG, 4000 Düsseldorf Stranggiesskokille fuer rund- bzw. knueppelquerschnitte, insbesondere fuer das vergiessen von fluessigem stahl
US5467810A (en) * 1994-04-01 1995-11-21 Acutus Industries Continuous metal casting mold
DE69518360T2 (de) * 1994-06-06 2000-12-28 Danieli & C. Officine Meccaniche S.P.A., Buttrio Stranggiesskokille mit verbessertem Wärmeaustausch sowie Verfahren zur Erhöhung des Wärmeaustauschs einer Stranggiesskokille
DE19802809A1 (de) * 1998-01-27 1999-07-29 Km Europa Metal Ag Flüssigkeitsgekühlte Kokille
DE19831998A1 (de) * 1998-07-16 2000-01-20 Schloemann Siemag Ag Stranggießkokille
IT1310517B1 (it) * 1999-01-13 2002-02-18 Danieli Off Mecc Cristallizzatore per colata continua
DE10056910A1 (de) * 2000-11-16 2002-05-29 Sms Demag Ag Knüppel- und Blockkokille mit partiell geregelter Wärmeabfuhr über Kokillenumfang und Kokillenhöhe
US20030010471A1 (en) * 2001-05-02 2003-01-16 Grove John A. Continuous casting mold and method
DE10226214A1 (de) * 2002-06-13 2003-12-24 Sms Demag Ag Stranggießkokille für flüssige Metalle, insbesondere für flüssigen Stahl
CN2584318Y (zh) * 2002-10-29 2003-11-05 张桂银 一种可调式结晶器水套
DE10358853A1 (de) 2003-12-16 2005-07-14 Km Europa Metal Ag Stranggießkokille
CN2681837Y (zh) * 2004-01-12 2005-03-02 宝山钢铁股份有限公司 薄板坯连铸结晶器宽面铜板

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008017402A1 *

Also Published As

Publication number Publication date
EP2049286B1 (fr) 2017-12-27
CN101489703B (zh) 2011-09-28
US20100000704A1 (en) 2010-01-07
WO2008017402A1 (fr) 2008-02-14
CN101489703A (zh) 2009-07-22
DE102006036708A1 (de) 2008-02-07

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