EP1029616B1 - Dispositif d'oscillation d'un moule de coulée continue - Google Patents

Dispositif d'oscillation d'un moule de coulée continue Download PDF

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Publication number
EP1029616B1
EP1029616B1 EP00101546A EP00101546A EP1029616B1 EP 1029616 B1 EP1029616 B1 EP 1029616B1 EP 00101546 A EP00101546 A EP 00101546A EP 00101546 A EP00101546 A EP 00101546A EP 1029616 B1 EP1029616 B1 EP 1029616B1
Authority
EP
European Patent Office
Prior art keywords
continuous casting
mold
lifting table
base frame
lifting
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
EP00101546A
Other languages
German (de)
English (en)
Other versions
EP1029616A1 (fr
Inventor
Hans-Peter Kaiser
Axel Stavenow
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
Publication of EP1029616A1 publication Critical patent/EP1029616A1/fr
Application granted granted Critical
Publication of EP1029616B1 publication Critical patent/EP1029616B1/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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/053—Means for oscillating the moulds

Definitions

  • the invention relates to a device for oscillating a continuous casting mold, in particular for the continuous casting of thin slabs of steel, comprising a oscillating continuous casting mold, the lifting table of which has a fixed base frame articulated handlebar is guided, and their oscillation drive formed with hydraulic units arranged on a stationary base frame is and the axes of the joints on the hydraulic units, and the axes the joints on the links are aligned parallel to each other.
  • the mold In continuous casting, the mold is set in a periodic oscillation movement, to reduce the friction through a relative movement between the strand and the mold between the mold and the strand. This will make an undesirably high Friction of the strand on the mold wall is reduced. Furthermore, on the bathroom surface Granular to powdery casting powder in the mold after melting drawn into the gap between the mold and the strand as a lubricant.
  • the alternating upsetting or stretching process of the strand shell causes in particular with a sinusoidal oscillation an oscillating excitation of the whole Strand. If this is in an unfavorable, for example harmonious Frequency range, it may. a. to swing the pouring level in the mold come. Such a disadvantageous operating state can be particularly avoid by a non-sinusoidal movement of the mold, whereby a periodic bath level fluctuation is successfully dampened becomes.
  • Hydraulic oscillation drives for lifting tables are state of the art known from continuous casting, which a Kokillenoszillation with any Allow speed curves, for example corresponding to an asymmetrical one Sinusoid.
  • the positive and negative strip time can be divided into optimal areas, which is beneficial on the oscillation marks, their depth and shape affects and an improvement of the Surface quality causes.
  • document DE 37 04 793 C2 describes a mold lifting device with two on a lifting table for the continuous casting mold, or directly on this articulated, rotatably drivable eccentric shaft. Between rotary drive and the eccentric shafts, at least one drive shaft is used, in which the joint head facing away from the eccentric shaft is arranged such that it can be changed in position and the rod ends are rotatable against each other.
  • a non-sinusoidal sequence of movements the mold is used in this device through conscious use a gimbal error that occurs when a propeller shaft is not is used in alignment between the waves. By changing height and lateral displacement of the rotary drive are different, non-sinusoidal Movements of the mold can be realized.
  • Document EP 0 121 622 B1 describes a continuous caster using a mold mounted in a frame, which is controlled by an electro-hydraulic Servo device is vibrated.
  • the generation of vibrations is preselected according to one generated by a function generator Vibration ampute signal operated at a frequency higher than that Natural frequency of the vibration device is.
  • the as yet unpublished patent application 198 17 701.1 discloses a device for continuous casting of steel, consisting of an oscillating in the casting direction, continuous casting mold held in a lifting table and at least one oscillating drive acting on the lifting table.
  • the lifting table is below his Guide plane extending guide blocks, between which a stationary clamping block is arranged.
  • the oscillation drive consists of four hydraulic cylinders, two on each Chill side are arranged and with one end on the guide blocks and are attached at their other end to a stationary support frame.
  • An oscillation device described in document EP 0 732 978 B1 uses two clamped clamps on each side of the mold Leaf spring packages.
  • a hydraulic cylinder is arranged centrally under the mold on each side.
  • Document DE 195 41 164 A1 discloses an oscillation device for a Continuous casting mold, the guided on a support frame in the casting direction Continuous casting mold by means of servo hydraulic cylinders arranged on the support frame is moved oscillating.
  • the oscillation device shows that the servo hydraulic cylinder on the bottom via an elastic fastening element on the Support frame attached and their piston rods are connected to the mold.
  • the object of the invention based on further improving known oscillation drives, and in particular a uncomplicated and compact device for decoupling the linear Relationship between casting speed and the oscillation parameters Specify the stroke / frequency, in particular an undesirable influence avoids the speed curve by a guide with spring characteristics and any setting of the ratio of stroke and frequency in one Realized device of the lowest possible height.
  • Lift table units 4, 5, 6, 7, 8, 9 arranged continuous casting mold 1 has an oscillation drive with two, four in total on a stationary Base frame 3 by means of joints 7, 7 'arranged hydraulic units 4, 4'.
  • Each lifting table support 5, 5 ' is articulated with the upper part of the hydraulic unit 4,4 ', and its lower end is articulated to the base frame 3.
  • the lifting table 2 is from the planes x-x; x'-x 'parallel planes between Base frame 3 and lifting table support 5, 5 'articulated in a horizontal position Handlebars 9.9 'out.
  • the device described enables in a particularly uncomplicated and compact construction a decoupling of the linear relationship between Casting speed and the oscillation parameter stroke / frequency.
  • the device is free from resonance frequencies and has good guiding properties in all levels.
  • the links 9, 9 ' are arranged on the narrow sides 10, 10' of the mold 1.
  • the guidance of the lifting tables 2 is designed with a double-link arrangement.
  • An essential feature of the claimed device is that the Hydraulic units 4,4 'in parallel to the narrow sides 10,10' of the mold 1 Levels are arranged laterally at a distance from the lifting table 2 and that the Hydraulic units 4,4 'are double-acting servo cylinders.

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

Claims (5)

  1. Dispositif d'oscillation d'une lingotière de coulée continue (1), notamment pour la coulée continue de brames minces en acier, comprenant une lingotière de coulée continue pouvant osciller (1) dont la table d'oscillation (2) est guidée par des conducteurs (9, 9') reliés de manière articulée à un châssis de base (3) à emplacement fixe, et dont la propulsion d'oscillation est constituée d'agrégats hydrauliques (4, 4') disposés sur le châssis de base (3) et les axes des articulations (6, 6') ainsi que des articulations (7, 7') des agrégats hydrauliques (4, 4') et les axes des articulations (8 , 8') des conducteurs (9, 9') sont orientés parallèlement les uns aux autres,
    caractérisé en ce que
    la lingotière de coulée continue (1) est disposée sur quatre poutres d'oscillation individuelles (5, 5'),
    la table d'oscillation (2) est reliée de manière articulée par les supports de table d'oscillation (5, 5') à la partie supérieure (6) de chacun des quatre agrégats hydrauliques (4, 4') et dont la partie respectivement inférieure est reliée en articulation au châssis de base (3) et
    que les quatre agrégats hydrauliques (4, 4') sont disposés dans des plans parallèles (x-x, x'-x') aux côtés étroits (10, 10') de la lingotière (1) près de la table d'oscillation (2).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    les conducteurs (9, 9') possèdent des profilés en acier.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    les conducteurs (9, 9') sont disposés sous les côtés étroits (10, 10') de la lingotière (1).
  4. Dispositif selon l'une quelconque ou plusieurs des revendications 1 à 3,
    caractérisé en ce que
    le guidage du support de table d'oscillation (5, 5') est constitué à chaque fois d'une agencement à double conducteur.
  5. Dispositif selon l'une quelconque ou plusieurs des revendications 1 à 4,
    caractérisé en ce que
    les agrégats hydrauliques (4, 4') sont des servocylindres à double action.
EP00101546A 1999-02-19 2000-01-27 Dispositif d'oscillation d'un moule de coulée continue Expired - Lifetime EP1029616B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19906886 1999-02-19
DE19906886A DE19906886A1 (de) 1999-02-19 1999-02-19 Vorrichtung zu Oszillieren einer Stranggießkokille

Publications (2)

Publication Number Publication Date
EP1029616A1 EP1029616A1 (fr) 2000-08-23
EP1029616B1 true EP1029616B1 (fr) 2004-07-07

Family

ID=7897952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00101546A Expired - Lifetime EP1029616B1 (fr) 1999-02-19 2000-01-27 Dispositif d'oscillation d'un moule de coulée continue

Country Status (3)

Country Link
EP (1) EP1029616B1 (fr)
AT (1) ATE270596T1 (fr)
DE (2) DE19906886A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946069A1 (de) * 1999-09-25 2001-03-29 Sms Demag Ag Führung von Kokillen-Hubtischen einer Stranggießanlage
DE10062440A1 (de) * 2000-12-14 2002-06-20 Sms Demag Ag Vorrichtung zum Stranggießen von Metallen, insbesondere von Stahl
DE10131715B4 (de) * 2001-06-29 2010-03-18 Sms Siemag Aktiengesellschaft Vorrichtung zum Stranggießen von flüssigen Metallen, insbesondere von Stahl, mit auf einem Schwingrahmen angeordneter Stranggießkokille
DE102006002929B4 (de) * 2006-01-21 2012-10-04 Sms Siemag Aktiengesellschaft Bauteil für eine Stranggießvorrichtung
DE102017201496A1 (de) 2017-01-31 2018-08-02 Sms Group Gmbh Oszillationssystem für eine Stranggießkokille, und Verfahren zum Erzeugen einer Oszillationsbewegung einer Stranggießkokille

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH633204A5 (de) * 1978-10-27 1982-11-30 Concast Ag Stranggiessanlage fuer stahl mit oszillierender durchlaufkokille.
DE4341719C2 (de) * 1993-12-03 2001-02-01 Mannesmann Ag Einrichtung zum Stranggießen von Stahl
DE19541164B4 (de) * 1995-11-04 2005-02-17 Sms Demag Ag Oszillationseinrichtung für eine Stranggießkokille
DE19722733A1 (de) * 1997-05-30 1998-12-03 Schloemann Siemag Ag Vorrichtung zum Stranggießen von Stahl
DE19817701C2 (de) * 1998-04-21 2000-09-28 Sms Demag Ag Hubtisch mit Oszillationsantrieb für eine Stranggießeinrichtung

Also Published As

Publication number Publication date
EP1029616A1 (fr) 2000-08-23
ATE270596T1 (de) 2004-07-15
DE50006989D1 (de) 2004-08-12
DE19906886A1 (de) 2000-08-24

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