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EP0881015B1 - Machine for continuous casting of steel - Google Patents

Machine for continuous casting of steel Download PDF

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Publication number
EP0881015B1
EP0881015B1 EP98109419A EP98109419A EP0881015B1 EP 0881015 B1 EP0881015 B1 EP 0881015B1 EP 98109419 A EP98109419 A EP 98109419A EP 98109419 A EP98109419 A EP 98109419A EP 0881015 B1 EP0881015 B1 EP 0881015B1
Authority
EP
European Patent Office
Prior art keywords
plate
continuous
frame
casting
base frame
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
EP98109419A
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German (de)
French (fr)
Other versions
EP0881015A1 (en
Inventor
Horst Grothe
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 EP0881015A1 publication Critical patent/EP0881015A1/en
Application granted granted Critical
Publication of EP0881015B1 publication Critical patent/EP0881015B1/en
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
    • B22D11/051—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

Definitions

  • the invention relates to a device for the continuous casting of steel, comprising a Continuous casting mold oscillating in the casting direction, in one with an oscillation drive connected lifting table of a stationary base frame is arranged, and the Guide elements are assigned on both sides transversely to the casting direction.
  • Such a device is known from DE 43 41 719 C1.
  • the oscillating Continuous casting mold is there at both ends, extending transversely to the casting direction clamped springs and with a fixed to a support frame, connected as a servo hydraulic cylinder oscillation drive.
  • a continuous casting mold consisting of broad and narrow side walls here the narrow side walls between the broad side walls on the Clamping devices acting on the wide side walls are clamped and attached to mounting blocks fixed, on the top and bottom also the springs via clamping means are attached, the springs at both ends in clamping blocks and the clamping blocks from arranged on the support frame, further mounting blocks are held.
  • This very expensive construction thus proves to be particularly disadvantageous, if the guide springs have to be changed, because these are subject to change through the frequency of the oscillation a constant interplay of bending stresses.
  • the invention has for its object in a device of the aforementioned Kind of a guide device with in particular with regard to service life and Wear to create improved properties of the guide elements.
  • the guide elements as Plate frame formed with cross struts and two each at a distance opposite plate frames combined into a plate frame pair are, each plate frame on the one hand with the base frame and on the other is connected to the lifting table.
  • the cross struts both one Bending spring as well as a tie rod function, i.e. on train or bend be deformed.
  • a permissible oscillation stroke of plus / minus 10 mm can the geometric changes, i.e.
  • the leadership or Panel frames are unlimited in their lifespan and also maintenance-free.
  • the Assembly or installation of the plate frame is very simple and requires essentially only unscrewing the base frame and removing it Help, for example, of the indoor crane; the necessary assembly space is then free accessible.
  • the entire plate frame guide system is also free of play, and Wishbones are not required.
  • each plate frame from two in situ vertical side plates with horizontal plates connecting them as cross struts consists.
  • the cross struts can be welded to the side plates; alternatively it is possible to manufacture such a plate frame from solid, for example by flame cutting from a slab and subsequent finishing by milling and / or grinding.
  • the side plates are advantageously provided with mounting holes, leave the plate frame with the side walls as clamping parts in a simple manner connect with screws to the lifting table and the base frame.
  • a lifting table 2 is arranged, to which as an oscillation drive on the base frame 1 articulated servo hydraulic cylinder 3 attacks.
  • the lifting table 2 small mass can be arranged as a single overall table or - arranged left / right or front / rear - train with two separate lifting tables (see Fig. 3).
  • FIGS. 1 to 3 consist of two side plates 8 and these interconnecting cross struts in the form of horizontal plates 9.
  • the side plates 8 are from the start, each with just above and below the Cross struts 9 provided mounting holes 10 (see. Part 4a), so that they are simply indicated by means of FIGS. 1 to 3
  • Mount holes 10 see. Part 4a
  • FIGS. 1 to 3 Have screws 11 connected to base frame 1 and lifting table 2.
  • Oscillation movements - which can be in the range of plus / minus 10 mm (cf. the double arrow in sub-figure b and the numerical details there) - of the lifting table 2 depending on the stroke, the cross struts 9 bend either upwards or downwards from, as dash-dotted in partial figure 4b and greatly exaggerated for clarity is shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Machine Tool Units (AREA)

Abstract

The apparatus includes an oscillating continuous casting mould (4) fixed to a table (2) which has an oscillation drive and is mounted on a stationary base frame (1). The mould has guide elements which take the form of plate frames (7) with cross members (9). Two opposing plate frames (7) are joined into a plate frame pair (7a, 7b). Each plate frame is connected on one side to the base frame and on the other side to the table (2).

Description

Die Erfindung betrifft eine Vorrichtung zum Stranggießen von Stahl, umfassend eine in Gießrichtung oszillierende Stranggießkokille, die in einem mit einem Oszillationsantrieb verbundenen Hubtisch eines stationären Grundrahmens angeordnet ist, und der beidseitig quer zur Gießrichtung Führungselemente zugeordnet sind.The invention relates to a device for the continuous casting of steel, comprising a Continuous casting mold oscillating in the casting direction, in one with an oscillation drive connected lifting table of a stationary base frame is arranged, and the Guide elements are assigned on both sides transversely to the casting direction.

Eine solche Vorrichtung ist aus der DE 43 41 719 C1 bekannt. Die oszillierende Stranggießkokille ist dort an quer zur Gießrichtung sich erstreckenden, beidendig eingespannten Federn gelagert und mit einem an einem Tragrahmen fest verbundenen, als Servo-Hydraulikzylinder ausgebildeten Oszillationsantrieb verbunden. Bei einer aus Breitseiten- und Schmalseitenwänden bestehenden Stranggießkokille sind hierbei die Schmalseitenwände zwischen den Breitseitenwänden über auf die Breitseitenwände wirkende Spanneinrichtungen geklemmt und an Befestigungsblöcken festgelegt, an deren Ober- und Unterseite auch die Federn über Klemmittel befestigt sind, wobei die Federn beidendig in Spannblöcken und die Spannblöcke von am Tragrahmen angeordneten, weiteren Befestigungsblöcken gehalten sind. Diese somit sehr aufwendige Bauweise zeigt sich insbesondere dann als sehr nachteilig, wenn die Führungsfedern gewechselt werden müssen, denn diese unterliegen bedingt durch die Frequenz der Oszillation einem stetigen Wechselspiel von Biegespannungen.Such a device is known from DE 43 41 719 C1. The oscillating Continuous casting mold is there at both ends, extending transversely to the casting direction clamped springs and with a fixed to a support frame, connected as a servo hydraulic cylinder oscillation drive. At are a continuous casting mold consisting of broad and narrow side walls here the narrow side walls between the broad side walls on the Clamping devices acting on the wide side walls are clamped and attached to mounting blocks fixed, on the top and bottom also the springs via clamping means are attached, the springs at both ends in clamping blocks and the clamping blocks from arranged on the support frame, further mounting blocks are held. This very expensive construction thus proves to be particularly disadvantageous, if the guide springs have to be changed, because these are subject to change through the frequency of the oscillation a constant interplay of bending stresses.

Der Erfindung liegt die Aufgabe zugrunde, bei einer Vorrichtung der eingangs genannten Art eine Führungseinrichtung mit insbesondere hinsichtlich Standzeit und Verschleiß verbesserten Eigenschaften der Führungselemente zu schaffen. The invention has for its object in a device of the aforementioned Kind of a guide device with in particular with regard to service life and Wear to create improved properties of the guide elements.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Führungselemente als Plattenrahmen mit Querstreben ausgebildet und jeweils zwei einander im Abstand gegenüberliegende Plattenrahmen zu einem Plattenrahmenpaar zusammengefaßt sind, wobei jeder Plattenrahmen einerseits mit dem Grundrahmen und andererseits mit dem Hubtisch verbunden ist. Hierbei wurde - in Abkehr von den bekannten Führungselementen in Form von Federn, Seilen oder Rundstäben - erkannt, daß bei den erfindungsgemäßen, als Verbindungsglied zwischen dem Grundrahmen und dem die Kokille tragenden, oszillierenden Hubtisch dienenden Platten- bzw. Führungsrahmen bei deren gegenüberliegender Anordnung die Querstreben sowohl eine Biegefeder- als auch eine Zugankerfunktion erfüllen, d.h. auf Zug bzw. Biegung verformt werden. Trotz eines zulässigen Oszillations-Hubes von plus/minus 10 mm lassen sich die geometrischen Änderungen, d.h. Verlagerungen der Querstreben aus der Mittellage so gering halten, daß die zulässige Spannung für Dauerfestigkeit weder durch Biegung noch durch Zug (oder Schub) überschritten wird. Die Führungs- bzw. Plattenrahmen sind in ihrer Lebensdauer unbegrenzt und zudem wartungsfrei. Die Montage bzw. der Einbau der Plattenrahmen ist sehr einfach und erfordert im wesentlichen lediglich das Losschrauben des Grundrahmens und dessen Ausbau mit Hilfe beispielsweise des Hallenkrans; der notwendige Montageplatz ist danach frei zugänglich. Das gesamte Plattenrahmen-Führungssystem ist zudem spielfrei, und Querlenker sind nicht erforderlich.This object is achieved in that the guide elements as Plate frame formed with cross struts and two each at a distance opposite plate frames combined into a plate frame pair are, each plate frame on the one hand with the base frame and on the other is connected to the lifting table. This was - in a departure from the known Guide elements in the form of springs, ropes or round bars - recognized that at the invention, as a link between the base frame and the mold-carrying, oscillating lifting table serving plate or guide frame in their opposite arrangement, the cross struts both one Bending spring as well as a tie rod function, i.e. on train or bend be deformed. Despite a permissible oscillation stroke of plus / minus 10 mm can the geometric changes, i.e. Displacements of the cross struts keep the middle layer so low that the permissible stress for fatigue strength is neither by bending or by pulling (or pushing). The leadership or Panel frames are unlimited in their lifespan and also maintenance-free. The Assembly or installation of the plate frame is very simple and requires essentially only unscrewing the base frame and removing it Help, for example, of the indoor crane; the necessary assembly space is then free accessible. The entire plate frame guide system is also free of play, and Wishbones are not required.

Eine Ausgestaltung der Erfindung sieht vor, daß jeder Plattenrahmen aus zwei in situ vertikalen Seitenplatten mit diese verbindenden Horizontalplatten als Querstreben besteht. Die Querstreben lassen sich mit den Seitenplatten verschweißen; alternativ ist es möglich, einen solchen Plattenrahmen aus dem Vollen herzustellen, beispielsweise durch Brennschneiden aus einer Bramme und einer anschließenden Nachbearbeitung durch Fräsen und/oder Schleifen.An embodiment of the invention provides that each plate frame from two in situ vertical side plates with horizontal plates connecting them as cross struts consists. The cross struts can be welded to the side plates; alternatively it is possible to manufacture such a plate frame from solid, for example by flame cutting from a slab and subsequent finishing by milling and / or grinding.

Wenn die Seitenplatten vorteilhaft mit Befestigungsbohrungen versehen sind, lassen sich die Plattenrahmen mit den Seitenwänden als Einspannteile in einfacher Weise durch Schrauben mit dem Hubtisch und dem Grundrahmen verbinden. If the side plates are advantageously provided with mounting holes, leave the plate frame with the side walls as clamping parts in a simple manner connect with screws to the lifting table and the base frame.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den Ansprüchen und der nachfolgenden Beschreibung, in der ein in den Zeichnungen dargestelltes Ausführungsbeispiel der Erfindung näher erläutert wird. Es zeigen:

Fig. 1
als Einzelheit einer als solche hinlänglich bekannten Stranggießanlage in sehr schematischer Seitenansicht einen in einem stationären Grundrahmen angeordneten Hubtisch einer Stranggießkokille;
Fig. 2
die Anordnung gemäß Fig. 1 in halbsymmetrischer Draufsicht;
Fig. 3
einen Schnitt entlang der Linie III-III von Fig. 1, schematisch dargestellt; und
Fig. 4
als Einzelheit einen Führungs- bzw. Plattenrahmen in der Seitenansicht (Teilfigur a) und in der Vorderansicht (Teilfigur b) dargestellt.
Further details and advantages of the invention result from the claims and the following description, in which an embodiment of the invention illustrated in the drawings is explained in more detail. Show it:
Fig. 1
as a detail of a continuous casting installation known as such, in a very schematic side view, a lifting table of a continuous casting mold arranged in a stationary base frame;
Fig. 2
the arrangement of Figure 1 in semi-symmetrical plan view.
Fig. 3
a section along the line III-III of Figure 1, shown schematically. and
Fig. 4
as a detail a guide or plate frame shown in side view (part figure a) and in the front view (part figure b).

In einem stationären Grundrahmen 1 einer nicht gezeigten Stranggießanlage ist gemäß den Fig. 1 und 2 ein Hubtisch 2 angeordnet, an den als Oszillationsantrieb ein am Grundrahmen 1 angelenkter Servo-Hydraulikzylinder 3 angreift. Der Hubtisch 2 kleiner Masse läßt sich als einzelner Gesamttisch oder - angeordnet links/rechts bzw. vorn/hinten - mit zwei getrennten Hubtischen (vgl. Fig. 3) ausbilden. Der eine Stranggießkokille 4, die gemäß Fig. 3 aus Breitseitenwänden 6 und Schmalseitenwänden 7 besteht und dort nur auszugsweise, nämlich bis geringfügig über die Strangmitte 5 hinausreichend dargestellt ist, tragende Hubtisch 2 wird entsprechend seiner Bauweise (Gesamttisch oder zwei getrennte Tischeinheiten) entweder in einem Paar Plattenrahmen oder - wie gemäß Fig. 3 - in aufgrund der getrennten Bauweise vier einzelnen Plattenrahmen 7 als Führungselementen geführt.In a stationary base frame 1 of a continuous caster, not shown 1 and 2, a lifting table 2 is arranged, to which as an oscillation drive on the base frame 1 articulated servo hydraulic cylinder 3 attacks. The lifting table 2 small mass can be arranged as a single overall table or - arranged left / right or front / rear - train with two separate lifting tables (see Fig. 3). The one Continuous casting mold 4, which according to FIG. 3 from broad side walls 6 and narrow side walls 7 exists and there only in part, namely until slightly above The middle of the strand 5 is shown sufficiently, the load-bearing lifting table 2 becomes corresponding its construction (complete table or two separate table units) either in one Pair of plate frames or - as shown in FIG. 3 - in due to the separate design four individual plate frames 7 out as guide elements.

In jedem Fall bilden stets zwei einander im Abstand gegenüberliegende Plattenrahmen ein Plattenrahmenpaar 7a (vgl. Fig. 2) bzw. 7b (vgl. Fig. 3). Aufgrund dieser somit doppelseitigen Anbindung tritt keine Horizontalkomponente auf und es werden vielmehr Kräfte aufgebaut, die das System immer wieder in die Mitte zurückführen.In any case, always form two plate frames opposite each other at a distance a plate frame pair 7a (see FIG. 2) or 7b (see FIG. 3). Based on these thus double-sided connection no horizontal component occurs and there will be rather, forces are built up that always lead the system back to the center.

Die Plattenrahmen 7 bestehen gemäß Fig. 4 aus zwei Seitenplatten 8 und diese miteinander verbindenden, in Form von Horizontalplatten ausgeführten Querstreben 9. Die Seitenplatten 8 sind von vornherein mit jeweils knapp ober- und unterhalb der Querstreben 9 angeordneten Befestigungsbohrungen 10 (vgl. Teilfigur 4a) versehen, so daß sie sich auf einfache Weise mittels in den Fig. 1 bis 3 lediglich angedeuteten Schrauben 11 mit dem Grundrahmen 1 und dem Hubtisch 2 verbinden lassen. Bei Oszillationsbewegungen - die im Bereich von plus/minus 10 mm liegen können (vgl. den Doppelpfeil in der Teilfigur b und die dortigen Ziffernangaben) - des Hubtisches 2 biegen sich die Querstreben 9 hubabhängig entweder nach oben oder nach unten aus, wie in der Teilfigur 4b strichpunktiert und zur Verdeutlichung stark überzeichnet dargestellt ist. Tatsächlich sind die geometrischen Änderungen, d.h. die Verlagerungen aus der Mittellage durch die Dimensionierung der Plattenrahmen so gering, daß die zulässige Spannung für Dauerfestigkeit weder durch Biegung noch durch Zug oder Schub überschritten wird. Die in Fig. 4 (Teilfiguren a und b) eingetragenen Abmessungen I bzw. s bzw. b sind funktionsbestimmend und abhängig von der Last ausgelegt, d.h. bei größerer Last sind die Abmessungen entsprechend größer und bei kleinerer Last entsprechend kleiner.4 consist of two side plates 8 and these interconnecting cross struts in the form of horizontal plates 9. The side plates 8 are from the start, each with just above and below the Cross struts 9 provided mounting holes 10 (see. Part 4a), so that they are simply indicated by means of FIGS. 1 to 3 Have screws 11 connected to base frame 1 and lifting table 2. At Oscillation movements - which can be in the range of plus / minus 10 mm (cf. the double arrow in sub-figure b and the numerical details there) - of the lifting table 2 depending on the stroke, the cross struts 9 bend either upwards or downwards from, as dash-dotted in partial figure 4b and greatly exaggerated for clarity is shown. In fact, the geometric changes, i.e. the relocations from the middle position by dimensioning the plate frame like this low that the permissible stress for fatigue strength neither by bending nor is exceeded by train or push. 4 (partial figures a and b) Dimensions I or S or B entered are function-determining and dependent designed by the load, i.e. the dimensions are corresponding for larger loads larger and correspondingly smaller with a smaller load.

Claims (3)

  1. Machine for continuous casting of steel, comprising a continuous-casting mould oscillating in the direction of casting, said continuous-casting mould being arranged in a lifting table of a stationary base frame, said continuous-casting mould being connected to an oscillating drive, with said continuous-casting mould on both sides of the direction of casting being associated with guide elements,
    characterised in that,
    the guide elements are configured as plate frames (7) comprising transverse struts (9), with each two opposing plate frames (7) being spaced apart, forming a pair of plate frames (7a; 7b), with each plate frame (7) being connected not only to the base frame (1) but also to the lifting table (2).
  2. Machine according to claim 1,
    characterised in that,
    each plate frame (7) comprises two vertical lateral plates (8), arranged in situ, and horizontal plates as transverse struts (9) which connect the vertical lateral plates (8).
  3. Machine according to claim 1 or 2,
    characterised in that,
    the lateral plates (8) comprise attachment boreholes (10) .
EP98109419A 1997-05-30 1998-05-25 Machine for continuous casting of steel Expired - Lifetime EP0881015B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722733 1997-05-30
DE19722733A DE19722733A1 (en) 1997-05-30 1997-05-30 Device for the continuous casting of steel

Publications (2)

Publication Number Publication Date
EP0881015A1 EP0881015A1 (en) 1998-12-02
EP0881015B1 true EP0881015B1 (en) 2001-08-01

Family

ID=7830962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109419A Expired - Lifetime EP0881015B1 (en) 1997-05-30 1998-05-25 Machine for continuous casting of steel

Country Status (6)

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US (1) US6079478A (en)
EP (1) EP0881015B1 (en)
JP (1) JP4237295B2 (en)
KR (1) KR100542879B1 (en)
AT (1) ATE203695T1 (en)
DE (2) DE19722733A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19906886A1 (en) * 1999-02-19 2000-08-24 Sms Demag Ag Device for oscillating a continuous casting mold
AT408625B (en) * 1999-06-08 2002-01-25 Voest Alpine Ind Anlagen CASTING
DE19940997A1 (en) * 1999-08-28 2001-03-01 Sms Demag Ag Device for the continuous casting of metal
US20120081707A1 (en) * 2010-07-02 2012-04-05 Bengt Norden Shear flow device and methods of use
CN103121086B (en) * 2013-02-20 2015-01-21 内蒙古科技大学 Crystallizer vibration measuring device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2248066A1 (en) * 1972-09-30 1974-04-04 Schloemann Ag Continuous casting mould vibration mounting - comprises two horizontal leaf spring packs
JPS5964142A (en) * 1982-10-05 1984-04-12 Kawasaki Steel Corp Vibration device for casting mold in continuous casting device
DE3403598A1 (en) * 1984-02-02 1985-08-08 SMS Schloemann-Siemag AG, 4000 Düsseldorf GUIDE DEVICE FOR AN OSCILLATING DRIVEN CONTINUOUS CASTING CHOCOLATE
AT383520B (en) * 1985-12-23 1987-07-10 Voest Alpine Ag GUIDE DEVICE FOR AN OSCILLATING CHOCOLATE OF A CONTINUOUS CASTING SYSTEM
FR2598338B1 (en) * 1986-03-07 1989-10-06 Clecim Sa CONTINUOUS CASTING OF METAL
US4762164A (en) * 1987-08-20 1988-08-09 Usx Corporation Mold friction monitoring for breakout protection
JP3025366B2 (en) * 1992-02-03 2000-03-27 住友重機械工業株式会社 Mold unit of continuous casting machine, mold structure and mold unit recombination method
DE4341719C2 (en) * 1993-12-03 2001-02-01 Mannesmann Ag Device for the continuous casting of steel
DE19541164B4 (en) * 1995-11-04 2005-02-17 Sms Demag Ag Oscillating device for a continuous casting mold

Also Published As

Publication number Publication date
US6079478A (en) 2000-06-27
KR100542879B1 (en) 2006-03-23
DE59801109D1 (en) 2001-09-06
JPH1147889A (en) 1999-02-23
ATE203695T1 (en) 2001-08-15
JP4237295B2 (en) 2009-03-11
KR19980087531A (en) 1998-12-05
EP0881015A1 (en) 1998-12-02
DE19722733A1 (en) 1998-12-03

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