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EP1827735B1 - Procede et dispositif de coulee en bande de metaux - Google Patents

Procede et dispositif de coulee en bande de metaux Download PDF

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Publication number
EP1827735B1
EP1827735B1 EP05850286A EP05850286A EP1827735B1 EP 1827735 B1 EP1827735 B1 EP 1827735B1 EP 05850286 A EP05850286 A EP 05850286A EP 05850286 A EP05850286 A EP 05850286A EP 1827735 B1 EP1827735 B1 EP 1827735B1
Authority
EP
European Patent Office
Prior art keywords
liquid metal
transport belt
upper run
cooling
nozzles
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.)
Expired - Lifetime
Application number
EP05850286A
Other languages
German (de)
English (en)
Other versions
EP1827735A1 (fr
Inventor
Jörg BAUSCH
Udo Falkenreck
Hans-Jürgen SCHEMEIT
Walter Weischedel
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
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
Priority to PL05850286T priority Critical patent/PL1827735T3/pl
Publication of EP1827735A1 publication Critical patent/EP1827735A1/fr
Application granted granted Critical
Publication of EP1827735B1 publication Critical patent/EP1827735B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0685—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting belts
    • 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

Definitions

  • the invention relates to methods for casting metal strands close to the final dimensions, in particular rectangular strands, wherein liquid metal is poured onto a circulating conveyor belt, with subsequent inline rolling.
  • liquid metal is poured through an opening in the wall of a horizontally movable supply hopper onto the top of a horizontally circulating belt to solidify there. After solidification, the cast strip is passed directly to a rolling stand or rolling mill.
  • the prior art thus includes a method or a device in which the point of delivery of the metal to the conveyor belt is locally fixed or locally variable.
  • the invention is therefore based on the object of specifying methods in which or in which the production window or the production spectrum is extended. This involves casting different metals and grades, casting different product thicknesses and widths, and a wide casting speed variance to avoid the above drawbacks.
  • the decisive advantage of the method according to the invention is that the intensity of the cooling corresponding to the greatest heat transfer is designed so that the greatest cooling effect is achieved at the location of the first contact of the liquid metal with the conveyor belt and decreases downstream.
  • the local variation of the feed point of the liquid metal on the conveyor belt in conjunction with an optimally adapted cooling or cooling arrangement, a flexibilization of the production spectrum is achieved.
  • the point at which the liquid metal comes into contact with the conveyor belt must be changed under certain boundary conditions such as different metal qualities, mass flow rates and the like in the casting direction.
  • the intensity of the cooling is adjusted by a local change of the cooling zone, seen in the transport direction.
  • the zone of the conveyor belt which has the greatest cooling intensity is therefore correlated with the location of the exit of the liquid metal from the feed tank.
  • a first embodiment provides that the nozzles are combined in several independent units.
  • Each nozzle unit is a separate one Pressure regulated water supply assigned.
  • the pressure in the following nozzle units is gradually reduced. The highest pressure at the point of application of the liquid metal ensures that the greatest cooling effect is achieved here.
  • the pressure in the individual nozzle units is changed.
  • the pressure with which the cooling medium is injected at the individual nozzle units on the underside of the upper run of the conveyor belt remains constant.
  • the individual nozzle units are arranged so that the nozzle unit with the greatest cooling effect, ie the largest coolant flow, is always located where the liquid metal is fed onto the conveyor belt. For this, the nozzle units are displaced or displaced locally.
  • the parameters conveyor belt speed and metal quantity / time are also changed.
  • the effective cooling length necessary for solidification is adapted to the metallurgical length.
  • This process is carried out in various situations as follows, assuming a uniform supply of the liquid metal to the conveyor belt.
  • a metal feed container 1 for liquid metal 2 is arranged above a conveyor belt 3.
  • the conveyor belt 3 is deflected over two rollers 4 and 5.
  • Liquid metal 2 passes from an opening 6 in the metal feed container 1 to the upper side 7 of the upper run 8 of the conveyor belt 3.
  • the rollers 4 and 5 By a rotary movement of the rollers 4 and 5, the liquid metal 2 is directed in the transport direction 9 to a rolling device, not shown.
  • the liquid metal 2 must have formed a strand shell of sufficient strength when it leaves the conveyor belt 3 in the region of the roller 5.
  • nozzles 11 are arranged in the region of the bottom 10 of the upper run 8 of the conveyor belt. From the nozzles 11, a cooling medium such as water or the like is injected onto the underside 10 of the upper run 8.
  • the nozzles 11 are arranged, for example, in four nozzles - segments 12, 13, 14, 15.
  • Each nozzle segment 12, 13, 14, 15 has a separate pressure regulated water supply (not shown). This makes it possible that each nozzle segment 12, 13, 14, 15 can be subjected to different pressure.
  • the highest pressure of the cooling water or the cooling medium is provided where the largest amount of heat has to be dissipated. This location corresponds to the point at which the liquid metal 2 impinges on the top 7. In FIG. 1 a is this place on the left side. Therefore, the nozzle segment 12 is for example subjected to a pressure of 8 bar. As seen in the transport direction 8, the amount of heat to be dissipated becomes smaller, the nozzle segment 13 with a reduced Pressure of for example 6 bar, the nozzle segment 14 with 4 bar and the nozzle segment 15 applied with 3 bar.
  • arranged nozzle segment (in FIG. 1b the nozzle segment and in Figure 1c the nozzle segments) are subjected to a reduced pressure.
  • the pressures are individually adjustable at any time and are influenced by the above mentioned boundary conditions such as metal quality, mass flow rate etc.
  • the cooling water or the cooling medium is supplied under constant pressure to the individual nozzle - segments 16, 17, 18, 19, 20.
  • the supply can be done centrally for all nozzles - segments 16, 17, 18, 19, 20 or decentralized for each individual.
  • the nozzles of the nozzle segments 16, 17, 18, 19, 20 are designed so that the cooling effect of the nozzle segments 16, 17, 18, 19, 20 is different. This can be achieved for example by different flow rates of the cooling medium.
  • the nozzle segment 16, 17, 8, 19, 20 with the highest cooling effect is arranged where the liquid metal 2 reaches the conveyor belt 3. Since this location varies, the nozzle segments 16, 17, 18, 19, 20 can be interchanged or offset. In FIG. 2a the highest cooling effect is achieved in the left nozzle segment 16. As seen in the transport direction 9, the cooling effect in the following nozzle segments 17, 18, 19, 20 decreases.
  • FIG. 2b is the feeding point for the liquid metal 2 shifted in the transport direction 9. To achieve the greatest cooling effect here, this is out FIG. 2 a known nozzles - segment 16 also moved in the transport direction 9.
  • the effective cooling length is adjusted to the metallurgical length.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Wire Processing (AREA)
  • Metal Rolling (AREA)

Claims (6)

  1. Procédé de coulée proche des dimensions finales de barres de métal, en particulier de barres rectangulaires, dans lequel du métal (2) liquide est coulé sur une bande de transport (3) circulante, comportant des rouleaux en ligne consécutifs, comprenant les étapes suivantes:
    introduction localement variable du métal liquide en direction de coulée entre les rouleaux (4, 5) sur un brin supérieur (8) de la bande de transport (3),
    refroidissement du brin supérieur (8) de la bande de transport (3) en pulvérisant des fluides de refroidissement ou de l'eau de refroidissement au moyen de tuyères (11) sur la face inférieure (10) du brin supérieur (8) ;
    les tuyères (11) étant rassemblées en segments de tuyères (12, 13, 14, 15) ;
    caractérisé en ce que
    à l'emplacement auquel le métal liquide est introduit sur la face supérieure (7) du brin supérieur (8), on refroidit la bande de transport (3) le plus fortement ou on évacue la plus forte quantité de chaleur en alimentant le segment de tuyères (12, 13, 14, 15) correspondant avec la plus grande pression d'eau de refroidissement dans cette zone ; et
    en ce que la pression est réduite dans les segments de tuyères (12, 13, 14, 15) suivants.
  2. Procédé de coulée proche des dimensions finales de barres de métal, en particulier de barres rectangulaires, dans lequel du métal (2) liquide est moulé sur une bande de transport (3) circulante, comportant des rouleaux en ligne suivants, comprenant les étapes suivantes:
    introduction localement variable du métal liquide en direction de coulée entre les rouleaux (4, 5) sur un brin supérieur (8) de la bande de transport (3),
    refroidissement du brin supérieur (8) de la bande de transport (3) en injectant des fluides de refroidissement ou de l'eau de refroidissement au moyen de tuyères (11) sur la face inférieure (10) du brin supérieur (8) ;
    les tuyères (11) étant rassemblées en segments de tuyères (16, 17, 18, 19, 20) ;
    caractérisé en ce que
    à l'emplacement auquel le métal liquide est introduit sur la face supérieure (7) du brin supérieur (8), on refroidit la bande de transport (3) le plus fortement ou on évacue la plus forte quantité de chaleur en alimentant à cet emplacement le segment de tuyères (16, 17, 18, 19, 20) correspondant avec le plus haut débit de liquide de refroidissement ou d'eau de refroidissement;
    en ce que le débit est réduit dans les segments de tuyères (16, 17, 18, 19, 20) suivants ; et
    en ce que les tuyères (11) présentent la même pression dans les segments de tuyères (16 - 20).
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    le débit de masse m du métal liquide est maintenu constant.
  4. Procédé selon l'une des revendications 1 à 3,
    caractérisé en ce que
    la vitesse de transport vTr est maintenue constante.
  5. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    l'amenée de métal est réduite ou agrandie.
  6. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    la vitesse de transport vTr est réduite ou augmente.
EP05850286A 2004-12-18 2005-12-16 Procede et dispositif de coulee en bande de metaux Expired - Lifetime EP1827735B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05850286T PL1827735T3 (pl) 2004-12-18 2005-12-16 Sposób i urządzenie do taśmowego odlewania metali

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004061080A DE102004061080A1 (de) 2004-12-18 2004-12-18 Verfahren und Vorrichtung zum Bandgießen von Metallen
PCT/EP2005/013571 WO2006063847A1 (fr) 2004-12-18 2005-12-16 Procede et dispositif de coulee en bande de metaux

Publications (2)

Publication Number Publication Date
EP1827735A1 EP1827735A1 (fr) 2007-09-05
EP1827735B1 true EP1827735B1 (fr) 2008-11-19

Family

ID=36011709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05850286A Expired - Lifetime EP1827735B1 (fr) 2004-12-18 2005-12-16 Procede et dispositif de coulee en bande de metaux

Country Status (9)

Country Link
US (1) US20080000612A1 (fr)
EP (1) EP1827735B1 (fr)
JP (1) JP4922945B2 (fr)
AT (1) ATE414579T1 (fr)
AU (1) AU2005315789A1 (fr)
DE (2) DE102004061080A1 (fr)
ES (1) ES2314751T3 (fr)
PL (1) PL1827735T3 (fr)
WO (1) WO2006063847A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101970049A (zh) 2008-02-13 2011-02-09 安德里亚斯·罗斯 提供径向光输出模式的光递送装置
DE102010005226C5 (de) 2010-01-21 2020-02-13 Fritz-Peter Pleschiutschnigg Verfahren und Vorrichtung zum Bandgießen
JP6867488B2 (ja) * 2016-11-29 2021-04-28 エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 搬送装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127149A (ja) * 1984-07-17 1986-02-06 Sumitomo Metal Ind Ltd 水平連続鋳造装置
CH671534A5 (fr) * 1986-03-14 1989-09-15 Escher Wyss Ag
JPS63123552A (ja) * 1986-11-12 1988-05-27 Kawasaki Steel Corp ベルト式連続鋳造機のベルト冷却装置
JPS63126652A (ja) * 1986-11-18 1988-05-30 Kawasaki Steel Corp 双ベルト式連続鋳造方法
JPH01254351A (ja) * 1988-04-01 1989-10-11 Hitachi Ltd ベルト式連続鋳造機の冷却パッド
JPH084887B2 (ja) * 1989-12-06 1996-01-24 株式会社日立製作所 高温鋳片の搬送装置
JP2680470B2 (ja) * 1990-09-14 1997-11-19 新日本製鐵株式会社 双ベルト式連続鋳造機のベルト冷却方法
JPH09141408A (ja) * 1995-11-24 1997-06-03 Kawasaki Steel Corp 連続鋳造の二次冷却方法
US5671801A (en) * 1996-01-11 1997-09-30 Larex A.G. Cooling system for a belt caster and associated methods
JPH09192791A (ja) * 1996-01-22 1997-07-29 Kobe Steel Ltd ベルト式連続鋳造機の冷却パッド
US5967223A (en) * 1996-07-10 1999-10-19 Hazelett Strip-Casting Corporation Permanent-magnetic hydrodynamic methods and apparatus for stabilizing a casting belt in a continuous metal-casting machine
DE19823440C1 (de) * 1998-05-19 1999-12-09 Mannesmann Ag Verfahren und Vorrichtung zum endabmessungsnahen Gießen von Metall
JP2000126848A (ja) * 1998-10-27 2000-05-09 Ishikawajima Harima Heavy Ind Co Ltd 急冷合金箔帯製造装置とその方法
US6755236B1 (en) * 2000-08-07 2004-06-29 Alcan International Limited Belt-cooling and guiding means for continuous belt casting of metal strip
US6453984B1 (en) * 2001-03-13 2002-09-24 Honeywell International Inc. Apparatus and method for casting amorphous metal alloys in an adjustable low density atmosphere

Also Published As

Publication number Publication date
WO2006063847A1 (fr) 2006-06-22
ATE414579T1 (de) 2008-12-15
US20080000612A1 (en) 2008-01-03
DE502005006026D1 (de) 2009-01-02
JP4922945B2 (ja) 2012-04-25
PL1827735T3 (pl) 2009-04-30
ES2314751T3 (es) 2009-03-16
JP2008531281A (ja) 2008-08-14
EP1827735A1 (fr) 2007-09-05
DE102004061080A1 (de) 2006-06-22
AU2005315789A1 (en) 2006-06-22

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