EP1048377B1 - Device for the continuous casting of metal - Google Patents

Device for the continuous casting of metal Download PDF

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Publication number
EP1048377B1
EP1048377B1 EP00107807A EP00107807A EP1048377B1 EP 1048377 B1 EP1048377 B1 EP 1048377B1 EP 00107807 A EP00107807 A EP 00107807A EP 00107807 A EP00107807 A EP 00107807A EP 1048377 B1 EP1048377 B1 EP 1048377B1
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EP
European Patent Office
Prior art keywords
clamping
stroke table
spring
equipment according
elements
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
EP00107807A
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German (de)
French (fr)
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EP1048377A2 (en
EP1048377A3 (en
Inventor
Peter Jonen
Axel Stavenow
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SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
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Publication of EP1048377A3 publication Critical patent/EP1048377A3/en
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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
    • B22D11/14—Plants for continuous casting

Definitions

  • the invention relates to a device for continuous casting of metal, in particular Steel, comprising a first and second lifting table element, each by means of a drive unit are driven to oscillate and spaced from each other are arranged, and one between the two Hubticianlementen arranged, releasably by means of connecting elements with the lifting table elements connectable continuous casting mold, wherein the strand between the two Lifting table elements is removed.
  • Known continuous casting devices include one oscillating driven one-piece lift table, which a so-called O-frame for Recording the mold has.
  • This O-frame proves to be disadvantageous because in this way, accessibility to the first segment is no longer present, i. the first roll to guide the strand with solidified shell after exiting the mold.
  • To access the first segment was placed on the O-frame omitted and the lift table in a first and second Hubticianlement, split the mold between them. But this is the result Problem that caused by the thermal expansion of the mold transverse forces no longer from the O-frame, but from the two lifting table elements must be included.
  • each Lifting table element on a bearing block by means of two superimposed Lever stored.
  • the upper lever by a on the bearing block the second side adjacent arranged hydraulically driven cylinder in a rocking movement and thus the lifting table in an oscillating motion added.
  • the mold is on the Lifting table elements attached by means of screw. Since the Mold walls expand during the casting process, the two become Lifting table elements pressed apart. The resulting shear forces can however, taken up by the two drive levers and roller bearings and be compensated.
  • the invention has the object to provide a means for continuous casting while avoiding the lateral forces described above.
  • the basic idea of the invention is the creation of a connecting element for Connection of the Kokillen emotionss with the respective Hubticianlement with defined clamping force taking advantage of mechanical spring force.
  • the Hubtischetti a flat end face for partial support of Mold on with at least one in the face of the Hubtischidess partially recessed connecting element, wherein the connecting element a clamping bolt comprises with a first in the respective lifting table element sunken end and a second, a clamping surface of the Kokillen stresses penetrating end and wherein at the first end a spring element and on second end of a clamping element are provided for clamping the mold against the respective lifting table element.
  • the bracing element is preferably a Locking element inserted into a slot in the clamping bolt of the Connecting element is introduced at right angles to the longitudinal axis, below Application of a bias of the spring element is inserted and by flat contact with the clamping surface of the Kokillen stressess the tension with the Lifting table causes.
  • the spring unit is not set to a special type of springs, at one preferred embodiment is a disc spring column of a Spring package with interchangeable stacked single-plate springs. Have cup springs the advantage of absorbing large forces with small spring travel.
  • an inner guide of the individual disc springs is through the Clamping bolts in front.
  • two per lifting table element provided connecting elements according to the invention.
  • the proposed fasteners prove to be advantageous because each individual connection element independently and individually is interchangeable.
  • the use of the clamping solution by means of the locking bolts shortens the Changing times of the mold, since the required mechanical tightening of the mold Screws are eliminated.
  • the spring-acting fasteners can next to the Devices arranged below the respective lifting table element Drive units also in facilities with next to the lifting table elements arranged drive units are used.
  • Figure 1 shows an angular Hubticianlement 1 with a vertically extending angle range 1a and a horizontally extending Angular region 1b, which is a flat extending upper end face 1c as Forming surface for the mold forms.
  • the lifting table element 1 is by means of a upper lever 2 and a lower lever 3 out, which continues to a Bearing block 7 are attached.
  • the levers 2 and 3 are in the lever bearings 4a, b as well 5a, b stored.
  • the hydraulically driven cylinder 6 is the entire lifting table element 1 is placed in an oscillating motion. From the End face of the lifting table element 1 out two extend Connecting elements 8a, b, which are shown in detail in Figure 2.
  • a connecting element 8 has a clamping bolt 9, which is perpendicular to the end face or bearing surface 1c extends the lifting table element 1c.
  • the spring element 11 is in the embodiment shown a disc spring column from a spring package with alternately stacked single-plate springs 16. Der Clamping pin 9 serves for the inner guide of the disc springs 16.
  • the plate spring package 11 is above and below limited by means of discs 17a, b.
  • At the top Washer 17a is followed by a bushing 18 as a guide for the clamping bolt 9.
  • the diaphragm spring column 11 and the sleeve 18 are connected by a housing 19th surround.
  • a plunger 20 is provided which is hydraulically operated.
  • the plunger 20 is by means of bolts 21 a, b releasably attached to the housing 19. These Elements are split as a whole by means of bolts 22a, b and one Ringes 23a, b releasably secured in a sinking of the lifting table element. With 24 is called a rotation.
  • a Verklemmhim is provided at the second end 12 of the clamping bolt 9 .
  • the clamping bolt as Clamping pin 25 a slot in the under application of bias the diaphragm spring column 11 a locking element 26 with flat edges is insertable.
  • the Disc spring column 11 When the mold is to be released from the Hubticianlement, the Disc spring column 11 by means of the hydraulic plunger 20 compressed, the clamping bolt 9 axially displaced and thus the jammed bolt 26 released again.
  • the plunger cylinder is a connection 27 for its oil supply provided by the oil pressure, a piston 28 moves in the direction of the spring element. Basically, in the difficult conditions the pouring of hot melt a hydraulic always susceptible to interference. if the Hydraulics to drive the plunger fails, but this can easily by means of a Hand pump to be replaced.
  • FIG. 3 For clarity, with Figure 3, the prior art for Attachment of the mold to a lifting table element by means of a screw connection described.
  • the mold 31 with a corresponding screw nose 32 is with the respective lifting table element 33 by means of hinged screws 34 releasably secured.
  • hinged screws 34 are composed of a bottom element 35, a Middle part 36 and headboard 37 together.
  • the bottom member 35 is fixed to the Lifting table 33 connected.
  • On the bottom element 35 is pivotally the middle part 36th stored with an opening in a corresponding nose 32 of the mold is pivoted.
  • the head part 37 has a surface 38 for support with the Mold nose on.
  • the head part 37 is moved longitudinally along the Middle part screwed to the mold nose.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Devices For Molds (AREA)

Abstract

A continuous casting installation, having spring-biased clamping bolts (9) for clamping a mould between two spaced oscillati lifting table elements (1), is new. A continuous casting installation comprises a mould located between and releasably connected to two spaced oscillating lift table elements (1) which have flat surfaces (1c) for partial seating of the mould and which have one or more partially embedded connection elements (8a, b). Each connection element comprises a clamping bolt (9) with a spring-biased first end embedded in a lifting table element and a second end which extends through a mould clamping face (13) and which has a clamping element for clamping the mould against the lifting table element.

Description

Die Erfindung betrifft eine Einrichtung zum Stranggießen von Metall, insbesondere Stahl, umfassend ein erstes und zweites Hubtischelement, die mittels jeweils einem Antriebsaggregat oszillierend antreibbar sind und zueinander beabstandet angeordnet sind, sowie eine zwischen den beiden Hubtischelementen angeordnete, mittels Verbindungselementen mit den Hubtischelementen lösbar verbindbare Stranggießkokille, wobei der Strang zwischen den beiden Hubtischelementen abgezogen wird.The invention relates to a device for continuous casting of metal, in particular Steel, comprising a first and second lifting table element, each by means of a drive unit are driven to oscillate and spaced from each other are arranged, and one between the two Hubtischelementen arranged, releasably by means of connecting elements with the lifting table elements connectable continuous casting mold, wherein the strand between the two Lifting table elements is removed.

Bekannte Einrichtungen zum Stranggießen umfassen einen oszillierend angetriebenen einstückigen Hubtisch, welcher einen sogenannten O-Rahmen zur Aufnahme der Kokille aufweist. Dieser O-Rahmen erweist sich als nachteilig, weil auf diese Weise keine Zugänglichkeit mehr zum ersten Segment gegeben ist, d.h. der ersten Rolle zur Führung des Stranges mit erstarrter Schale nach Austritt aus der Kokille. Um das erste Segment zugänglich zu machen, wurde auf den O-Rahmen verzichtet und der Hubtisch in ein erstes und zweites Hubtischelement, die die Kokille zwischen sich aufnehmen, aufgeteilt. Hierbei ergibt sich aber das Problem, daß durch die Wärmeausdehnung der Kokille entstehende Querkräfte nicht mehr von dem O-Rahmen, sondern von den beiden Hubtischelementen aufgenommen werden müssen.Known continuous casting devices include one oscillating driven one-piece lift table, which a so-called O-frame for Recording the mold has. This O-frame proves to be disadvantageous because in this way, accessibility to the first segment is no longer present, i. the first roll to guide the strand with solidified shell after exiting the mold. To access the first segment was placed on the O-frame omitted and the lift table in a first and second Hubtischelement, split the mold between them. But this is the result Problem that caused by the thermal expansion of the mold transverse forces no longer from the O-frame, but from the two lifting table elements must be included.

Bei derartigen Stranggießeinrichtungen mit zwei Hubtischelementen ist jedes Hubtischelement an einem Lagerblock mittels zweier übereinander angeordneter Hebel gelagert. Hierbei wird der obere Hebel durch einen an den Lagerblock auf der zweiten Seite angrenzend angeordneten hydraulisch angetriebenen Zylinder in eine Wippbewegung und somit der Hubtisch in eine oszillierende Bewegung versetzt. Nach einem betriebseigenen Stand der Technik wird die Kokille auf den Hubtischelementen mittels Schraubverbindungen befestigt. Da sich die Kokillenwände während des Gießprozesses ausdehnen, werden die beiden Hubtischelemente auseinandergedrückt. Die resultierenden Querkräfte können jedoch von den beiden Antriebshebeln und Wälzkörperlagern aufgenommen und ausgeglichen werden.In such continuous casting with two Hubtischelementen is each Lifting table element on a bearing block by means of two superimposed Lever stored. Here, the upper lever by a on the bearing block the second side adjacent arranged hydraulically driven cylinder in a rocking movement and thus the lifting table in an oscillating motion added. After an in-house state of the art, the mold is on the Lifting table elements attached by means of screw. Since the Mold walls expand during the casting process, the two become Lifting table elements pressed apart. The resulting shear forces can however, taken up by the two drive levers and roller bearings and be compensated.

Zur Vereinfachung der Konstruktion wurden derartige Stranggießeinrichtungen weitergebildet, indem der Antriebszylinder nicht mehr außerhalb, sondern jeweils unterhalb eines Hubtischelementes angeordnet ist und sich längs der anfänglichen Gießrichtung erstreckt. Beide Hebel zwischen Hubtischelement und Lagerblock dienen nur noch zur Führung der Hubtischelemente. Auftretende Querkräfte müssen dann von der Hebellagerung und den Antriebszylindern aufgenommen werden. Aufgrund der geringen Aufnahmefähigkeit von Querkräften durch die Hydraulikzylinder erweist sich diese Einrichtung mit der beschriebenen Schraubenverbindung zwischen Kokille und Hubtisch als problematisch.To simplify the construction, such continuous casting machines have been used further developed by the drive cylinder no longer outside, but in each case is arranged below a lifting table element and along the initial Casting direction extends. Both levers between lifting table element and bearing block only serve to guide the lifting table elements. Occurring shear forces must then be absorbed by the lever support and the drive cylinders become. Due to the low absorption capacity of shear forces by the Hydraulic cylinder proves this device with the described Screw connection between mold and lift table as problematic.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Einrichtung zum Stranggießen bereitzustellen unter Vermeidung der oben beschriebenen Querkräfte.Based on this prior art, the invention has the object to provide a means for continuous casting while avoiding the lateral forces described above.

Grundgedanke der Erfindung ist die Schaffung eines Verbindungselementes zur Verbindung des Kokillenkörpers mit dem jeweiligen Hubtischelement mit definierter Klemmkraft unter Ausnutzen von mechanischer Federkraft. Hierzu weisen die Hubtischelemente eine ebene Stirnfläche zur teilweisen Auflage der Kokille auf mit mindestens einem in die Stirnfläche des Hubtischelementes teilweise eingelassenen Verbindungselement, wobei das Verbindungselement einen Spannbolzen umfaßt mit einem ersten in dem jeweiligen Hubtischelement eingelassenen Ende und einem zweiten, eine Spannfläche des Kokillenkörpers durchdringenden Ende und wobei am ersten Ende ein Federelement und am zweiten Ende ein Verspannelement vorgesehen sind zur Verspannung der Kokille gegen das jeweilige Hubtischelement. The basic idea of the invention is the creation of a connecting element for Connection of the Kokillenkörpers with the respective Hubtischelement with defined clamping force taking advantage of mechanical spring force. For this have the Hubtischelemente a flat end face for partial support of Mold on with at least one in the face of the Hubtischelementes partially recessed connecting element, wherein the connecting element a clamping bolt comprises with a first in the respective lifting table element sunken end and a second, a clamping surface of the Kokillenkörpers penetrating end and wherein at the first end a spring element and on second end of a clamping element are provided for clamping the mold against the respective lifting table element.

Bei dem Verspannelement handelt es sich vorzugsweise um ein Verriegelungselement, das in einen Schlitz, der in den Spannbolzen des Verbindungselementes rechtwinklig zur Längsachse eingebracht ist, unter Aufbringung einer Vorspannung des Federelementes einführbar ist und durch flächige Anlage an die Spannfläche des Kokillenkörpers die Verspannung mit dem Hubtisch bewirkt.The bracing element is preferably a Locking element inserted into a slot in the clamping bolt of the Connecting element is introduced at right angles to the longitudinal axis, below Application of a bias of the spring element is inserted and by flat contact with the clamping surface of the Kokillenkörpers the tension with the Lifting table causes.

Durch die Lösung mittels eines Feder- und Verspannelementes wird erreicht, daß die Spannfläche der Kokille auf dem Hubtischelement in ausreichendem Maße verspannt wird, so daß kein Spalt zwischen Kokille und der Auflagefläche des Hubtisches entsteht. Zusätzlich ist gewährleistet, daß bei Wärmeausdehnung der Kokille eine geringe Verschiebebewegung der Kokille auf dem jeweiligen Hubtischelement möglich ist und somit Querkräfte, wie sie bei Schraubverbindungen nach dem Stand der Technik entstehen, vermieden werden.By the solution by means of a spring and Verspannelementes ensures that the clamping surface of the mold on the Hubtischelement sufficiently is clamped so that no gap between the mold and the bearing surface of the Lifting table is created. In addition, it is ensured that when thermal expansion of Kokille a slight displacement movement of the mold on the respective Lifting table element is possible and thus lateral forces, as in Screw connections according to the prior art arise, be avoided.

Die Federeinheit ist nicht auf eine besondere Art von Federn festgelegt, bei einer bevorzugten Ausführungsform handelt es sich um eine Tellerfedersäule aus einem Federpaket mit wechselsinnig geschichteten Einzeltellerfedern. Tellerfedern haben den Vorteil der Aufnahme großer Kräfte bei kleinen Federwegen. Vorteilhafterweise liegt eine Innenführung der einzelnen Tellerfedern durch den Spannbolzen vor.The spring unit is not set to a special type of springs, at one preferred embodiment is a disc spring column of a Spring package with interchangeable stacked single-plate springs. Have cup springs the advantage of absorbing large forces with small spring travel. Advantageously, an inner guide of the individual disc springs is through the Clamping bolts in front.

Alternativ sind bei dem Federelement Schraubenfedern, hier zylindrische Schraubendruckfedern, denkbar.Alternatively, in the spring element coil springs, here cylindrical Helical compression springs, conceivable.

Bei einer bevorzugten Ausführungsform sind pro Hubtischelement zwei erfindungsgemäße Verbindungselemente vorgesehen.In a preferred embodiment, two per lifting table element provided connecting elements according to the invention.

Grundsätzlich erweisen sich die vorgeschlagenen Verbindungselemente als vorteilhaft, weil jedes einzelne Verbindungselement unabhängig und einzeln auswechselbar ist. Im Gegensatz zu den bekannten Schraubverbindungen verkürzt der Einsatz der Verspannlösung mittels der Verriegelungsbolzen die Wechselzeiten der Kokille, da das erforderliche mechanische Anziehen der Schrauben entfällt.In principle, the proposed fasteners prove to be advantageous because each individual connection element independently and individually is interchangeable. In contrast to the known screw connections the use of the clamping solution by means of the locking bolts shortens the Changing times of the mold, since the required mechanical tightening of the mold Screws are eliminated.

Die mit Federkraft wirkenden Verbindungselemente können neben den Einrichtungen mit unterhalb des jeweiligen Hubtischelementes angeordneten Antriebsaggregaten auch bei Einrichtungen mit neben den Hubtischelementen angeordneten Antriebsaggregaten zum Einsatz kommen.The spring-acting fasteners can next to the Devices arranged below the respective lifting table element Drive units also in facilities with next to the lifting table elements arranged drive units are used.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Hierbei zeigen:

Figur 1
eine Seitenansicht eines Hubtischelementes mit Verbindungselementen für die Kokille;
Figur 2
eine Schnittansicht des Verbindungselementes nach Figur 1;
Figur 3
eine Schnittansicht des Schraubverbindungselementes nach dem Stand der Technik.
Further details and advantages of the invention will become apparent from the dependent claims and the description below. Hereby show:
FIG. 1
a side view of a Hubtischelementes with connecting elements for the mold;
FIG. 2
a sectional view of the connecting element of Figure 1;
FIG. 3
a sectional view of the screw connection element according to the prior art.

Figur 1 zeigt ein winkelförmiges Hubtischelement 1 mit einem sich vertikal erstreckenden Winkelbereich 1a und einem sich horizontal erstreckenden Winkelbereich 1b, der eine sich flächig erstreckende obere Stirnfläche 1c als Auflagefläche für die Kokille bildet. Das Hubtischelement 1 wird mittels eines oberen Hebels 2 sowie eines unteren Hebels 3 geführt, die weiterhin an einem Lagerblock 7 befestigt sind. Die Hebel 2 und 3 sind in den Hebellagern 4a, b sowie 5a, b gelagert. Mittels des hydraulisch angetriebenen Zylinders 6 wird das gesamte Hubtischelement 1 in eine oszillierende Bewegung versetzt. Aus der Stirnfläche des Hubtischelementes 1 heraus erstrecken sich zwei Verbindungselemente 8a, b, die in der Figur 2 detailliert dargestellt sind. Figure 1 shows an angular Hubtischelement 1 with a vertically extending angle range 1a and a horizontally extending Angular region 1b, which is a flat extending upper end face 1c as Forming surface for the mold forms. The lifting table element 1 is by means of a upper lever 2 and a lower lever 3 out, which continues to a Bearing block 7 are attached. The levers 2 and 3 are in the lever bearings 4a, b as well 5a, b stored. By means of the hydraulically driven cylinder 6 is the entire lifting table element 1 is placed in an oscillating motion. From the End face of the lifting table element 1 out two extend Connecting elements 8a, b, which are shown in detail in Figure 2.

Ein Verbindungselement 8 weist einen Spannbolzen 9 auf, der sich rechtwinklig zu der Stirn- bzw. Auflagefläche 1c das Hubtischelementes 1c erstreckt. Das erste Ende 10 des Spannbolzens 9, das in den oberen Teil des jeweiligen Hubtischelementes eingelassen ist, weist ein Federelement 11 auf. Das zweite Ende 12 des Spannbolzens 9, das eine Spannfläche 13 des Kokillenkörpers durchdringt, ist mit einem Verspannelement 15 versehen.A connecting element 8 has a clamping bolt 9, which is perpendicular to the end face or bearing surface 1c extends the lifting table element 1c. The first End 10 of the clamping bolt 9, which is in the upper part of the respective Hubtischelementes is recessed, has a spring element 11. The second End 12 of the clamping bolt 9, which is a clamping surface 13 of the mold body penetrates, is provided with a clamping element 15.

Das Federelement 11 ist bei der gezeigten Ausführungsform eine Tellerfedersäule aus einem Federpaket mit wechselsinnig geschichteten Einzeltellerfedern 16. Der Spannbolzen 9 dient zur Innenführung der Tellerfedern 16. Das Tellerfederpaket 11 ist ober- bzw. unterhalb mittels Scheiben 17a, b begrenzt. An die obere Scheibe 17a schließt sich eine Buchse 18 als Führung für den Spannbolzen 9 an. Die Tellerfedersäule 11 sowie die Buchse 18 sind durch ein Gehäuse 19 umgeben.The spring element 11 is in the embodiment shown a disc spring column from a spring package with alternately stacked single-plate springs 16. Der Clamping pin 9 serves for the inner guide of the disc springs 16. The plate spring package 11 is above and below limited by means of discs 17a, b. At the top Washer 17a is followed by a bushing 18 as a guide for the clamping bolt 9. The diaphragm spring column 11 and the sleeve 18 are connected by a housing 19th surround.

An das Gehäuse 19 und in Verlängerung zum ersten Ende 10 des Spannbolzens 9 ist ein Plunger 20 vorgesehen, der hydraulisch bedient wird. Der Plunger 20 ist mittels Schraubbolzen 21 a, b lösbar an dem Gehäuse 19 befestigt. Diese Elemente werden als Gesamtheit mittels Schraubbolzen 22a, b und eines geteilten Ringes 23a, b in einer Versenkung des Hubtischelementes lösbar befestigt. Mit 24 ist eine Verdrehsicherung bezeichnet.To the housing 19 and in extension to the first end 10 of the clamping bolt 9, a plunger 20 is provided which is hydraulically operated. The plunger 20 is by means of bolts 21 a, b releasably attached to the housing 19. These Elements are split as a whole by means of bolts 22a, b and one Ringes 23a, b releasably secured in a sinking of the lifting table element. With 24 is called a rotation.

Am zweiten Ende 12 des Spannbolzens 9 ist eine Verklemmeinheit vorgesehen. Bei der gezeigten Ausführungsform weist hierzu der Spannbolzen als Klemmzapfen 25 einen Schlitz auf, in den unter Aufbringung von Vorspannung des Tellerfedersäule 11 ein Verriegelungselement 26 mit flächigen Kanten einführbar ist.At the second end 12 of the clamping bolt 9 a Verklemmeinheit is provided. In the embodiment shown has for this purpose the clamping bolt as Clamping pin 25 a slot in the under application of bias the diaphragm spring column 11 a locking element 26 with flat edges is insertable.

Wenn die Kokille von dem Hubtischelement gelöst werden soll, wird die Tellerfedersäule 11 mittels des hydraulisch arbeitenden Plungers 20 zusammengedrückt, der Spannbolzen 9 axial verschoben und somit der verklemmte Riegel 26 wieder gelöst. Am Plungerzylinder ist ein Anschluß 27 für dessen Ölversorgung vorgesehen, durch den Öldruck bewegt sich ein Kolben 28 in Richtung Federelement. Grundsätzlich ist bei den erschwerten Bedingungen des Gießens von heißer Schmelze eine Hydraulik immer störanfällig. Falls die Hydraulik zum Antrieb des Plungers ausfällt, kann diese aber einfach mittels einer Handpumpe ersetzt werden.When the mold is to be released from the Hubtischelement, the Disc spring column 11 by means of the hydraulic plunger 20 compressed, the clamping bolt 9 axially displaced and thus the jammed bolt 26 released again. The plunger cylinder is a connection 27 for its oil supply provided by the oil pressure, a piston 28 moves in the direction of the spring element. Basically, in the difficult conditions the pouring of hot melt a hydraulic always susceptible to interference. if the Hydraulics to drive the plunger fails, but this can easily by means of a Hand pump to be replaced.

Zu besseren Übersichtlichkeit wird mit Figur 3 der Stand der Technik zur Befestigung der Kokille an ein Hubtischelement mittels einer Schraubverbindung beschrieben. Die Kokille 31 mit einer entsprechenden Schraubnase 32 wird mit dem jeweiligen Hubtischelement 33 mittels Klappschrauben 34 lösbar befestigt. Derartige Klappschrauben 34 setzen sich aus einem Bodenelement 35, einem Mittelteil 36 sowie Kopfteil 37 zusammen. Das Bodenelement 35 ist fest mit dem Hubtisch 33 verbunden. An dem Bodenelement 35 ist schwenkbar das Mittelteil 36 mit einer Öffnung gelagert, das in eine entsprechende Nase 32 der Kokille eingeschwenkt wird. Das Kopfteil 37 weist eine Fläche 38 zur Auflage mit der Kokillennase auf. Das Kopfteil 37 wird durch Längsverschiebung entlang dem Mittelteil an die Kokillennase geschraubt. Als problematisch erweist es sich, daß bei Wärmedehnung der Kokillenwände und somit Bewegung der Nasen durch die fest angezogenen Klappschrauben die Hubtische auseinandergedrückt werden und Querkräfte entstehen, die die erfindungsgemäßen Verbindungselemente vermeiden.For clarity, with Figure 3, the prior art for Attachment of the mold to a lifting table element by means of a screw connection described. The mold 31 with a corresponding screw nose 32 is with the respective lifting table element 33 by means of hinged screws 34 releasably secured. Such hinged screws 34 are composed of a bottom element 35, a Middle part 36 and headboard 37 together. The bottom member 35 is fixed to the Lifting table 33 connected. On the bottom element 35 is pivotally the middle part 36th stored with an opening in a corresponding nose 32 of the mold is pivoted. The head part 37 has a surface 38 for support with the Mold nose on. The head part 37 is moved longitudinally along the Middle part screwed to the mold nose. As problematic it turns out that with thermal expansion of the mold walls and thus movement of the noses through the firmly tightened hinged screws, the lifting tables are pressed apart and transverse forces arise, the connecting elements of the invention avoid.

Claims (10)

  1. Equipment for continuous casting of metal, particularly steel, comprising a first and a second stroke table element, which are drivable by means of a drive unit to oscillate and are arranged at a spacing from one another, as well as a continuous casting chill mould which is arranged between the two stroke table elements and which is detachably connectible with the stroke table elements by means of connecting elements, wherein the strip is extracted between the two stroke table elements, characterised in that the stroke table elements (1) have a planar end surface (1c) for partial support of the chill mould, with at least one connecting element (8a, 8b) partly let into the end surface of the respective stroke table element, wherein the connecting element (8a, 8b) comprises a clamping bolt (9) with a first end (10) let into the respective stroke table element and a second end (12) penetrating a clamping surface (13) of the chill mould body and wherein a spring element (11) is provided at the first end (10), and a clamping element (15) at the second end (12), for clamping the chill mould against the respective stroke table element.
  2. Equipment according to claim 1, characterised in that the clamping element is a locking element (25, 26) which is insertable into a slot, which is formed in the clamping bolt of the connecting element at right angles to the longitudinal axis, under application of a bias of the spring element and effects the clamping with the stroke table by area contact at the clamping surface of the chill mould body.
  3. Equipment according to claim 3, characterised in that the spring element is a helical spring.
  4. Equipment according to claim 3, characterised in that the spring element (11) is a plate spring column consisting of a spring packet with individual plate springs (16) layered in alternating sense.
  5. Equipment according to claim 1, characterised in that hydraulic means are provided for releasing the spring biassing force.
  6. Equipment according to claim 1, characterised in that these means are a hydraulically actuable plunger (20).
  7. Equipment according to claim 1 to 6, characterised in that the respective stroke table element consists of an angular base body with a horizontally and a vertically extending angle element (1a, 1b), wherein the vertically extending angle element is mounted at a bearing block (7) by means of two levers (2, 3) arranged one above the other, that the drive unit (6) for oscillating drive is arranged below the horizontally extending angle region laterally with respect to the chill mould guide and that two connecting elements (8a, 8b) are provided on each end surface (1c) of the stroke table element.
  8. Equipment according to claim 1 to 6, characterised in that the respective stroke table element consists of an angular base body with a horizontally and a vertically extending angle element (1a, 1b), wherein the vertically extending angle element is mounted at a bearing block (7) by means of two levers (2, 3) arranged one above the other, that the drive unit is arranged laterally adjacent to the vertically extending angle element and that two connecting elements (8a, 8b) are provided on each end surface (1c) of the stroke table element.
  9. Equipment according to one of the preceding claims, characterised in that the drive unit is a hydraulic unit.
  10. Equipment according to one of the preceding claims, characterised in that the drive unit is an electromagnet unit.
EP00107807A 1999-04-26 2000-04-12 Device for the continuous casting of metal Expired - Lifetime EP1048377B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19918881 1999-04-26
DE19918881A DE19918881A1 (en) 1999-04-26 1999-04-26 Device for the continuous casting of metal

Publications (3)

Publication Number Publication Date
EP1048377A2 EP1048377A2 (en) 2000-11-02
EP1048377A3 EP1048377A3 (en) 2001-02-28
EP1048377B1 true EP1048377B1 (en) 2003-07-23

Family

ID=7905881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107807A Expired - Lifetime EP1048377B1 (en) 1999-04-26 2000-04-12 Device for the continuous casting of metal

Country Status (3)

Country Link
EP (1) EP1048377B1 (en)
AT (1) ATE245503T1 (en)
DE (2) DE19918881A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365389A1 (en) * 1976-09-28 1978-04-21 Fives Cail Babcock DEVICE FOR ADJUSTING ONE OF THE TWO FRONT PLATES OF A LINGOTIERE OF CONTINUOUS CASTING
FR2436636A1 (en) * 1978-09-21 1980-04-18 Fives Cail Babcock Clamping device for walls of continuous casting mould - where stack of cup springs initially compressed via hydraulic cylinder apply clamping pressure
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
DE19918881A1 (en) 2000-11-02
DE50002959D1 (en) 2003-08-28
EP1048377A2 (en) 2000-11-02
EP1048377A3 (en) 2001-02-28
ATE245503T1 (en) 2003-08-15

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