EP2692461A2 - Dispositif d'extraction moulée d'au moins un métal partiellement durci, notamment une lingotière de coulée continue, et procédé de fonctionnement d'un tel dispositif - Google Patents

Dispositif d'extraction moulée d'au moins un métal partiellement durci, notamment une lingotière de coulée continue, et procédé de fonctionnement d'un tel dispositif Download PDF

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Publication number
EP2692461A2
EP2692461A2 EP20130175339 EP13175339A EP2692461A2 EP 2692461 A2 EP2692461 A2 EP 2692461A2 EP 20130175339 EP20130175339 EP 20130175339 EP 13175339 A EP13175339 A EP 13175339A EP 2692461 A2 EP2692461 A2 EP 2692461A2
Authority
EP
European Patent Office
Prior art keywords
electromagnetic
side walls
inductors
continuous casting
electromagnetic inductors
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.)
Withdrawn
Application number
EP20130175339
Other languages
German (de)
English (en)
Inventor
Stephan Six
Miloslav Beres
Robert JÜRGENS
Jörn HOFFMEISTER
Ulrich Snadny
Norbert Vogl
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
Publication of EP2692461A2 publication Critical patent/EP2692461A2/fr
Withdrawn legal-status Critical Current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
    • B22D11/04—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
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields

Definitions

  • the invention relates to a device for the shaped application of at least partially solidified metal, in particular a continuous casting mold, comprising an outlet channel for vertical exit for at least partially solidified metal, wherein the outlet channel is bounded by side walls, wherein arranged at least in two opposing side walls at least one electromagnetic inductor is, with which an electromagnetic force can be exerted on the metal. Furthermore, the invention relates to a method for operating such a device.
  • a generic device in the form of a continuous casting mold is for example in the DE 195 42 211 A1 described.
  • electromagnetic inductors are arranged in the region of the side walls of the long sides of the mold, with which an electromagnetic effect can be exerted on the still molten metal in the interior of the mold.
  • the arranged along the broad side walls of the mold electromagnetic coils can be acted upon with different current forms to produce a rotating or static field effect.
  • the invention is therefore based on the object to provide a device of the generic type, in particular a continuous casting mold, which reduces the disadvantages mentioned. It is to provide a flexible electromagnetic device that meets the requirements of a dimensionally stable and rigid Kokillenkonstrument. In particular, in the upper mold area by electromagnetic DC or traveling fields, the flow of liquid steel can be positively influenced.
  • the solution of this object by the invention is characterized in that at least in the two opposing side walls each have at least two electromagnetic inductors are arranged, which are inserted into recesses in the side walls, wherein between the recesses at least one vertically extending web is arranged ,
  • the individual electromagnetic inductors are preferably designed as separate units that can be operated independently of each other. Also, an independent exchange, i. H. Removal and installation of individual units possible, which increases the flexibility of the system accordingly.
  • the device is preferably a continuous casting mold.
  • two opposing side walls in the horizontal direction may be formed at least twice as long as two other opposing side walls, only in the longer side walls Electromagnetic inductors are arranged.
  • the mold thus has two "long” and two “short” sides. In this case, exactly two electromagnetic inductors can be arranged in the longer side walls.
  • the recesses for the electromagnetic inductors are preferably rectangular in the front view of the side wall.
  • the center of the recesses, seen in the vertical direction, is preferably an offset above the middle of the side wall, again seen in the vertical direction. Said offset is preferably at least 30 mm, preferably at least 50 mm.
  • At least the side walls provided with electromagnetic inductors may have water cooling.
  • the electromagnetic inductors may be associated with means for generating a DC electromagnetic field or an electromagnetic traveling field.
  • the electromagnetic inductors are preferably formed independently of one another and can be removed.
  • the proposed method for operating the described continuous casting mold is based on the fact that in the two opposite side walls each present at least two electromagnetic inductors are replaced, the exchange of individual electromagnetic inductors is independent of the exchange of another electromagnetic inductor.
  • liquid metal In particular, liquid steel should be influenced by electromagnetic fields.
  • the combination of stirring and braking opens up a broader field of application for the targeted optimization of liquid steel flow within the mold.
  • the special arrangement of four separate coils (electromagnetic inductors) in particular metallurgical product improvements, high reliability and minimum investment and operating costs for the plant operator can be achieved.
  • the proposed mold is thus preferably provided with four separate electromagnetic induction coils for selectively stirring or braking the liquid metal, which are installed or retracted into the mold.
  • the center of the inductors is preferably offset in the vertical direction at least 50 mm from the mold center upwards in the direction of the casting mirror.
  • each at least two windows (recesses) for receiving the electromagnetic coils are introduced so that they are separated by a supporting vertical web horizontally and the coils can each be individually and independently of the adjacent coil installed and removed.
  • four sub-coils are provided in the side walls, which can be independently installed and removed.
  • an extension of the service life of the copper plates can be achieved by switching to braking, whereby the steel flow is braked with a lower casting width.
  • a reduced oscillating mass also advantageously results in less induced forces in the foundation resulting in less expensive conversions.
  • a cleaning effect By the stirring function, a cleaning effect (“washing effect”) can be achieved in the upper area on the inside of the strand shell, that is, the degree of purity of the slab can be increased. Furthermore, a homogeneous strand shell growth can be positively influenced. Also the microstructure education is positively influenced.
  • a continuous casting mold 1 is sketched, which consists essentially of four wall parts.
  • the four side walls are labeled 2, 3, 4 and 5.
  • the two side walls 4 and 5 are "short” walls that connect the two long.
  • the continuous casting mold 1 is initially largely already known, that is, there are copper plates 13, which limit the side walls 2, 3, 4, 5 to the interior of the continuous casting mold 1 out.
  • the side walls themselves - at least the two long side walls 2, 3 - are designed as water boxes to be able to cool them sufficiently.
  • each two recesses 10 and 11 are incorporated, which have a cuboid configuration. Fits this section of electromagnetic inductors 6, 7, 8 and 9 are formed. Accordingly, the inductors 6, 7, 8, 9 can be inserted into the recesses 10 and 11 to bring the inductors into their working position.
  • This web 12 represents a significant stabilization of the side wall 2, 3 or the water box, so that the above-mentioned advantages can be achieved.
  • the offset is indicated by a (offset between the vertical center of the side wall 2, 3 and the vertical center of the recess 10, 11) and is preferably at least 50 mm.
  • FIGS. 3 to 7 various examples of the operation of the proposed device are outlined. Shown in each case is schematically the top view of the slab mold 1 of a continuous casting plant, wherein on the two longitudinal sides with the side walls 2 and 3 respectively the two electromagnetic inductors 6 and 7 or 8 and 9 are arranged.
  • Modern PWM (pulse width modulation) converters when operated in 4-quadrant operation, can produce both DC and AC of different frequencies. If you operate such a PWM inverter at a facility such as Fig. 3 shown, depending on the operation, a DC electromagnetic field or a traveling field can be generated.
  • melt flows can be generated, as in the FIGS. 6 and 7 is indicated (right-handed or left-handed flow).
  • modulated DC currents are also possible which build up modulated DC fields, that is, a DC field is superimposed by alternating fields. All conceivable modulations and melt flows are possible here.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP20130175339 2012-08-02 2013-07-05 Dispositif d'extraction moulée d'au moins un métal partiellement durci, notamment une lingotière de coulée continue, et procédé de fonctionnement d'un tel dispositif Withdrawn EP2692461A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210213746 DE102012213746A1 (de) 2012-08-02 2012-08-02 Vorrichtung zur geformten Ausbringung zumindest teilweise erstarrten Metalls, insbesondere Stranggießkokille, und Verfahren zum Betreiben einer solchen Vorrichtung

Publications (1)

Publication Number Publication Date
EP2692461A2 true EP2692461A2 (fr) 2014-02-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20130175339 Withdrawn EP2692461A2 (fr) 2012-08-02 2013-07-05 Dispositif d'extraction moulée d'au moins un métal partiellement durci, notamment une lingotière de coulée continue, et procédé de fonctionnement d'un tel dispositif

Country Status (2)

Country Link
EP (1) EP2692461A2 (fr)
DE (1) DE102012213746A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104353797A (zh) * 2014-07-04 2015-02-18 河南中孚实业股份有限公司 伸缩式铸锭凝固末端电磁搅拌装置
CN115194107A (zh) * 2022-07-13 2022-10-18 沈阳工程学院 控制金属液流动的多段位独立可调复合磁场装置及方法
WO2024046708A1 (fr) * 2022-09-02 2024-03-07 Sms Group Gmbh Appareil de coulée continue et procédé de coulée continue d'un toron métallique à l'aide d'un moule de coulée continue

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533577C1 (de) 1995-08-29 1996-10-24 Mannesmann Ag Elektromagnetische Einrichtung für eine Stranggießkokille
DE19542211B4 (de) 1995-11-13 2005-09-01 Sms Demag Ag Elektromagnetische Rühreinrichtung für eine Brammenstranggießkokille
IT1295164B1 (it) 1997-07-10 1999-04-30 Danieli Off Mecc Procedimento di agitazione elettromagnetica per cristallizzatore e relativo cristallizzatore
JP2004322179A (ja) 2003-04-25 2004-11-18 Sumitomo Metal Ind Ltd 鋳型内電磁力制御装置および連続鋳造方法
JP2005230901A (ja) 2004-02-23 2005-09-02 Nippon Steel Corp 鋼の連続鋳造における溶鋼電磁撹拌装置
FR2893868B1 (fr) 2005-11-28 2008-01-04 Rotelec Sa Reglage du mode de brassage electromagnetique sur la hauteur d'une lingotiere de coulee continue
CN201405048Y (zh) 2009-05-22 2010-02-17 湖南中科电气股份有限公司 多模式板坯连铸结晶器电磁搅拌与控流器

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104353797A (zh) * 2014-07-04 2015-02-18 河南中孚实业股份有限公司 伸缩式铸锭凝固末端电磁搅拌装置
CN104353797B (zh) * 2014-07-04 2016-09-28 河南中孚实业股份有限公司 伸缩式铸锭凝固末端电磁搅拌装置
CN115194107A (zh) * 2022-07-13 2022-10-18 沈阳工程学院 控制金属液流动的多段位独立可调复合磁场装置及方法
CN115194107B (zh) * 2022-07-13 2023-05-16 沈阳工程学院 控制金属液流动的多段位独立可调复合磁场装置及方法
WO2024046708A1 (fr) * 2022-09-02 2024-03-07 Sms Group Gmbh Appareil de coulée continue et procédé de coulée continue d'un toron métallique à l'aide d'un moule de coulée continue

Also Published As

Publication number Publication date
DE102012213746A1 (de) 2014-02-06

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