EP3013499B1 - Zweidimensionale oszillation einer stranggiesskokille, verfahren sowie vorrichtung - Google Patents

Zweidimensionale oszillation einer stranggiesskokille, verfahren sowie vorrichtung Download PDF

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Publication number
EP3013499B1
EP3013499B1 EP14731938.8A EP14731938A EP3013499B1 EP 3013499 B1 EP3013499 B1 EP 3013499B1 EP 14731938 A EP14731938 A EP 14731938A EP 3013499 B1 EP3013499 B1 EP 3013499B1
Authority
EP
European Patent Office
Prior art keywords
broad
mould
side plate
frequency
oscillating
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.)
Active
Application number
EP14731938.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3013499A2 (de
Inventor
Guenter Leitner
Martin MUEHLBACHLER
Josef Watzinger
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.)
Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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Publication date
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Publication of EP3013499A2 publication Critical patent/EP3013499A2/de
Application granted granted Critical
Publication of EP3013499B1 publication Critical patent/EP3013499B1/de
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    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/051—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having oscillating walls
    • 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
    • B22D11/0535—Means for oscillating the moulds in a horizontal plane
    • 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/166—Controlling or regulating processes or operations for mould oscillation

Definitions

  • the present invention relates to a method and a device for oscillating a mold of a continuous casting machine (also called continuous casting mold).
  • the invention relates to a method for oscillating a mold of a continuous casting machine, wherein the mold comprises two narrow side and two wide side plates, and the mold oscillates in the vertical direction relative to a stationary support structure with a first frequency f V.
  • the US 5579824 A shows a method for oscillating a mold of a continuous casting machine, wherein the broad side plates 1 oscillate in the broadest sense in the horizontal direction.
  • the object of the invention is to overcome the disadvantages of the prior art and a method and a To represent apparatus for oscillating a mold of a continuous casting machine, with which the strand is better lubricated by the casting powder and the strand has fewer oscillation marks.
  • the device according to the invention should be simpler than known devices for a two-dimensional oscillation.
  • At least one broad side plate (preferably both wide side plates) of the mold oscillates horizontally in the width direction of the broadside plate at a second frequency f H , where f V ⁇ f H , and that for all points of the locus of the Wide side plate the amount
  • the speed is greater than 0.
  • locus curves In the evaluation of two-dimensional oscillation patterns (locus curves), it has surprisingly been found that it is particularly favorable when the frequencies for the oscillations in the vertical and horizontal directions are different. As a result, the length of the locus is extended at an oscillation cycle, which has a very positive effect on the lubricating effect of the casting powder. In addition, the strand and the broadside plate are loaded very evenly. In addition, it is very favorable if the locus of the broad side plate of the mold does not have any dead centers (ie points for which the magnitude of the speed is equal to zero, ie l v l ⁇ 0). As a result, a direction reversal of the broadside plate is prevented.
  • a broad side plate of the mold is oscillated in the vertical direction with the first frequency f V , which is either an integer multiple of the second frequency of the horizontal oscillation f H (eg, two, three, four times, etc.), or at the second frequency f H is an integer multiple of the first frequency of the vertical oscillation f V.
  • At least one wide side plate, preferably both wide side plates, of the mold is oscillated horizontally in the width direction of the wide side plate (ie, in the width direction of the strand, the width direction being normal to the casting direction and thickness direction).
  • the power consumption for the horizontal oscillation is particularly low when the first frequency f V is greater than the second frequency f H , ie f V > f H.
  • the amplitude of the vertical oscillation is greater than or equal to the amplitude of the horizontal oscillation. This can also reduce the energy consumption for the horizontal oscillation.
  • the two broad side plates of the mold oscillate in opposite directions, ie have a phase difference of substantially 180 °. Due to the opposite movements of the mass balance of the mold is improved.
  • the two broad side plates of the mold oscillate in the same direction, i. have a phase difference of substantially 0 °.
  • the method according to the invention is used in a straight or a curved mold.
  • the method is not limited to vertically oscillating molds; Rather, it could also be used for horizontally oscillating molds (so-called horizontal systems).
  • a second oscillation means for oscillation of at least one broad side plate of the mold is provided opposite the adjacent narrow side plates in the horizontal direction, and the wide side plate is slidably formed with respect to the adjacent narrow side plates.
  • a smooth locus for the broadside plate is achieved when the broadside plate horizontally oscillates horizontally in the width direction of the broadside plate. It is particularly preferred if the vertical oscillation is also harmonious.
  • the device according to the invention has at least one second oscillating device for horizontally oscillating at least one broad side plate of the mold relative to the adjacent narrow side plates in the width direction of the broad side plate.
  • each of the two wide side plates is assigned its own second oscillation device for horizontal oscillation in the width direction. As a result, the mass balance of the mold can be improved.
  • the first oscillating device has at least a first elastic element and a first oscillation drive, wherein the first elastic element and the first oscillation drive each with the mold and the stationary support structure are connected.
  • a simple construction for the second oscillating device results when the mold comprises a mold frame and the second oscillation device comprises a second oscillation drive, wherein the second oscillation drive is connected on the one hand to the vertically oscillating mold frame and the broad side plate.
  • the power consumption for the horizontal oscillation of the wide side plates can be reduced when a second elastic member is disposed between the mold frame and the wide side plate, and the wide side plate can be offset from the vertically oscillating mold frame by the second oscillation drive in a horizontal oscillation in the width direction.
  • the second elastic element is a spring band or a helical spring.
  • a first and / or a second oscillation drive is a linear electric motor. Due to the high power density, it is advantageous if the electric linear motor is a piezoelectric actuator.
  • a first and / or a second oscillation drive is a hydraulic linear motor, such as a hydraulic cylinder.
  • the broadside and the adjoining narrow side plates have sliding surfaces, preferably of sintered metal, which allow a relative movement.
  • the friction and the energy consumption for the horizontal oscillation can also be kept low, when the first wide side plate with the fixed side and the second wide side plate are connected to the loose side of the Kokillenrahmens, the Losseite is connected via a hydraulic clamping unit with the fixed side, and preferably the Clamping force of the clamping unit, particularly preferably hydraulically adjustable.
  • the clamping force can be e.g. hydraulically by means of the loading of the clamping unit by different high hydraulic pressures, easily adjusted.
  • the 2a, 2b show a non-inventive movement path of a two-dimensional oscillating Wide side plate (vertical oscillation and horizontal oscillation in the width direction of the broad side plate) of a mold.
  • the Fig. 2a shows the time sequence of the oscillation (abscissa in seconds); the Fig. 2b shows the locus of the trajectory.
  • Fig. 2b The locus in Fig. 2b has two pronounced dead centers OT, UT, so that the strand is heavily loaded at these points.
  • the Fig. 3a, 3b show the trajectory and the locus of a broad side of a mold for slab cross sections, which oscillates two-dimensionally (ie vertically and horizontally in the width direction of the broad side plate) according to the invention.
  • FIGS. 4a, 4b show a further movement path according to the invention for a broadside plate of a mold.
  • Fig. 3 and 4 shows that the movement paths according to the invention of the broad side plates of the mold are much smoother than in the vertical, one-dimensional oscillation, in which the mold reverses the direction of movement in both the top and bottom dead center. Furthermore, the trajectories of the invention have no pronounced dead centers with direction reversal.
  • the smoother motion path improves the lubricating effect of the casting powder and reduces the friction between the mold and the strand.
  • Fig. 8 the second oscillation device 5 is shown in more detail.
  • a rectangular, the two Breitrate- 3, 3a, 3b and narrow side plates 2 of the mold 1 enclosing mold frame 6 is brought by the not-shown first oscillating means in a vertical oscillation V.
  • the two narrow side plates 2 and the two wide side plates 3 form the rectangular mold cavity 4 (for the invention it does not matter if the mold cavity 4 is square or not; in particular, a wide side plate does not need to be longer than a narrow side plate).
  • a respective second oscillating device 5a, 5b is a broad side 3a, 3b relative to the oscillating in the vertical direction V mold frame 6 horizontally in the width direction H (ie in the width direction of the strand) of the wide side plate 3a, 3b oscillates.
  • the second oscillation drive 7, which is designed as a hydraulic cylinder 9, is supported on the mold frame 6 and acted upon as a second spring element elastic element 8 via the spring band, the wide side plate 3 together with the support plate 10 and the water tank 11 of the mold 1 in a horizontal oscillation H transversely to the thickness direction of the strand.
  • the narrow side plates 2 adjoining the wide side plate 3 are not oscillated in the horizontal direction, but oscillate together with the mold frame 6 in the vertical direction V.
  • the plates each have sliding surfaces 12 Sintered metal on.
  • the clamping unit 15 including the hydraulic clamping cylinder, not shown in detail, ensures that the mold cavity 4 is sealed in a fluid-tight manner, without, however, causing excessive friction between the plates.
  • Each broadside plate 3a, 3b is associated with its own second oscillation device 5 (and thus the two broadside plates can be moved in opposite directions), it would also be possible to accomplish the horizontal oscillation movement for both broadside plate 3a, 3b via a single second oscillation drive 5.
  • a second oscillating drive 5 could be arranged in the width direction on both sides of the wide side plate 3.
  • the water box 11 is either not on the support structure 6 (eg may be provided between a gap between the water box 11 and the support structure 6), or sliding surfaces 12 are provided between the water box and the support structure.
  • Fig. 6 is the mold 1 shown obliquely from below, wherein the forming in the mold 1, not shown, strand is supported by a plurality of castors 16.
  • the Fig. 7 shows a representation of the mold 1 without the Losement 14 (see Fig. 6 ) of the mold frame 6.
  • the loose side 14 of the mold 1 is clamped by the two clamping units 15 with the fixed side 13.
  • the clamping force is hydraulically adjustable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP14731938.8A 2013-06-27 2014-06-13 Zweidimensionale oszillation einer stranggiesskokille, verfahren sowie vorrichtung Active EP3013499B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50425/2013A AT514495B1 (de) 2013-06-27 2013-06-27 Zweidimensionale Oszillation einer Stranggießkokille
PCT/EP2014/062303 WO2014206761A2 (de) 2013-06-27 2014-06-13 Zweidimensionale oszillation einer stranggiesskokille

Publications (2)

Publication Number Publication Date
EP3013499A2 EP3013499A2 (de) 2016-05-04
EP3013499B1 true EP3013499B1 (de) 2017-08-09

Family

ID=50980283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14731938.8A Active EP3013499B1 (de) 2013-06-27 2014-06-13 Zweidimensionale oszillation einer stranggiesskokille, verfahren sowie vorrichtung

Country Status (4)

Country Link
EP (1) EP3013499B1 (ko)
KR (1) KR102195755B1 (ko)
AT (1) AT514495B1 (ko)
WO (1) WO2014206761A2 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023118279A1 (de) * 2021-12-22 2023-06-29 Primetals Technologies Austria GmbH Kokille einer stranggiessanlage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2585434B2 (ja) * 1989-07-25 1997-02-26 住友重機械工業株式会社 連続鋳造設備の鋳型振動装置
US5579824A (en) * 1993-11-29 1996-12-03 Kawasaki Steel Corporation Continuous casting process with vertical mold oscillation
JP2857050B2 (ja) * 1993-12-29 1999-02-10 川崎製鉄株式会社 連続鋳造設備における水平振動鋳型
DE19718235A1 (de) * 1997-04-30 1998-11-05 Schloemann Siemag Ag Stranggießkokille zum Gießen von Brammen insbesondere Dünnbrammen
JP2000042691A (ja) 1998-07-31 2000-02-15 Kawasaki Steel Corp 連続鋳造用鋳型の振動方法
WO2005009638A1 (ja) * 2003-07-24 2005-02-03 Sumitomo Metal Industries, Ltd. マグネシウム合金薄板の製造方法およびその製造装置
DE102004020130A1 (de) * 2004-04-24 2005-11-17 Sms Demag Ag Vorrichtung für die Aufnahme einer Stranggießkokille auf einem Hubtisch zum Gießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
AT514495B1 (de) 2016-05-15
KR20160027047A (ko) 2016-03-09
WO2014206761A3 (de) 2015-04-23
CN105517729A (zh) 2016-04-20
KR102195755B1 (ko) 2020-12-29
WO2014206761A2 (de) 2014-12-31
AT514495A1 (de) 2015-01-15
EP3013499A2 (de) 2016-05-04

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