EP0417504A2 - Continuous casting mould - Google Patents

Continuous casting mould Download PDF

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Publication number
EP0417504A2
EP0417504A2 EP90115910A EP90115910A EP0417504A2 EP 0417504 A2 EP0417504 A2 EP 0417504A2 EP 90115910 A EP90115910 A EP 90115910A EP 90115910 A EP90115910 A EP 90115910A EP 0417504 A2 EP0417504 A2 EP 0417504A2
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EP
European Patent Office
Prior art keywords
side walls
continuous casting
broad
casting mold
narrow
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.)
Granted
Application number
EP90115910A
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German (de)
French (fr)
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EP0417504B1 (en
EP0417504A3 (en
Inventor
Josef Deussen
Dieter Böttger
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 Schloemann Siemag AG
Schloemann Siemag AG
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Publication date
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0417504A2 publication Critical patent/EP0417504A2/en
Publication of EP0417504A3 publication Critical patent/EP0417504A3/en
Application granted granted Critical
Publication of EP0417504B1 publication Critical patent/EP0417504B1/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

Definitions

  • the invention relates to a continuous casting mold with two broad side walls arranged opposite one another on supporting frames, between which narrow side walls displaceable relative to one another are clamped in order to adjust the format width, mechanical tensioning elements being provided for bracing the narrow side walls located between the wide side walls, which are operatively connected to hydraulic piston-cylinder units.
  • compression springs are provided as mechanical tensioning elements for clamping the narrow side walls located between the broad side walls, the clamping forces of which can be changed by hydraulic cylinders connected in parallel.
  • the clamping forces generated by the compression springs are in this case designed to be excessive in accordance with the contact pressure required to adjust the narrow side walls, and the hydraulic pressure cylinders can be acted upon in order to reduce the contact pressure.
  • only one of the two support frames is on which the broad side walls are attached, arranged adjustable in the continuous casting mold. This configuration of the continuous steel casting mold allows precise adjustment of the contact forces and increased operational safety against opening of the broad side wall during casting in a simple manner.
  • the broad side walls are usually arranged parallel to one another in order to keep the adjustment path for the one support frame as short as possible.
  • the object of the invention consists in a further improvement of the above-mentioned continuous casting mold, in particular with regard to the functioning and maintenance.
  • Continuous casting molds with a funnel-shaped cross-section of the broad side walls should also be designed in such a way that they enable adjustment on both sides, e.g. in the event of a breakthrough that requires a longer adjustment path.
  • the support frames are arranged with their wide side walls in the continuous casting mold and are connected to the tensioning elements in such a way that they can be adjusted both to one another and from one another.
  • the support frames of the continuous casting mold with their wide side walls can be spread apart from one another to such an extent that the narrow side walls arranged on the support plates are accessible from both sides, very easily removed together with the support plates and can be replaced if necessary.
  • cleaning the continuous casting mold in the Narrow side areas as well as the maintenance of the continuous casting mold as a whole is thereby considerably simplified and facilitated.
  • the support frames with their broad side walls are very advantageously arranged in the continuous casting mold and connected to the tensioning elements in such a way that they can be spread by about 70 mm on each side. As a result, the end of the strand in the area of the mold can be exposed and the mold can be easily removed. After a breakthrough, the mold can, according to the invention, very easily be lifted upwards over the funnel-shaped strand end that solidifies in the mold.
  • the mechanical clamping element consists of spring-elastic tie rods made of steel, which connect the two support frames with their broad side walls. From these spring-elastic tie rods, the clamping forces occurring during the casting process of the metal strand are fully taken over, so that the installation of disc spring assemblies is not necessary.
  • the resilient tie rods are provided at one end with a keyway into which a wedge is inserted when the narrow side walls are clamped and which is operatively connected to a hydraulic piston-cylinder unit via a push rod and a pivot bearing.
  • the support frames are provided with guide rails which are slidably guided on guide pieces. This ensures that the support frame, in particular the fixed side, with its broad side walls after opening (spreading) in turn occupy exactly the original position and therefore there is no need to subsequently align the centering stones.
  • the narrow side parts that carry the narrow side walls and are designed as water tensioning plates are arranged in an unadjustable manner and are firmly connected to the mold lifting table. This means that there is no need to move the sealing rings of the water clamping plate and no time-consuming hose assembly when installing and removing the continuous casting mold.
  • the continuous casting mold consists of a support frame (1) for the loose side and a support frame (2) for the fixed side as well as the narrow side parts (3) and the support plates (4).
  • the broad side walls (9) are arranged on the inside of the support frames (1) and (2) and the narrow side walls (5) are arranged on the support plates (4).
  • Both the broad side walls (9) and the narrow side walls (5) are designed as copper plates and are not shown in detail with the support frames (1, 2) or with the support plates (4) in the drawing figures shown screws releasably connected.
  • the continuous casting mold is provided on both sides with a narrow side adjustment device (6) (can be seen in section on the left in FIG. 1).
  • each resilient tie rod (7) is provided at one end with a keyway (7 ') into which the wedge (8) is inserted between the broad side walls (9) when the narrow side walls (5) are clamped, by means of a hydraulic piston Cylinder unit (10), which, as particularly shown in Figures 4 and 5, is operatively connected to the wedge (8) or wedges (8) via a pivot bearing (11) and push rods (13).
  • the contact pressure of the broad side walls (9) on the narrow side walls (5) required here can be adjusted very easily and precisely by the pressure of the hydraulic cylinder of the hydraulic piston-cylinder unit (10) on the tensioning element (wedge 8).
  • the pivot bearing (11) is, as shown in Fig. 1, screwed onto the piston rod (11 ') of the hydraulic cylinder of the piston-cylinder unit (10), whereby the assembly and disassembly of the piston-cylinder unit (10) is simplified and facilitated.
  • This with the piston rod (11 ') of the piston-cylinder unit (10) detachably connected pivot bearing (11) is in turn via a pin (12) with the two push rods (13) and on the other hand with the as wedges (8) trained clamping elements in connection.
  • a bushing (15) arranged in a bearing body (14) serves to guide the wedges (8).
  • the bearing body (14) itself is welded to the support frame (1) on the loose side.
  • the resilient tie rods (7) are firmly screwed to the support frame (2) on their collar (16 ').
  • the position of the splines (7 ') arranged on the tie rods (7) in particular with the change in the format thickness of the casting strand, are, as shown in particular in FIG. 4, between the collar (16') and the support frame (2) Supplements (16) of different thickness arranged, by means of which differences in size are compensated.
  • two hydraulic cylinders (28) are screwed between the tie rods (7) on the support frames (1, 2) on the fixed and loose sides. This requires previously disengaging the wedges (8) serving as tensioning elements with the aid of the hydraulic piston-cylinder unit (10) into the unlocked position shown in FIG. 5.
  • the support frames (1, 2) can then be moved with their broad side walls (9) very advantageously compared to the narrow side walls (5) by about 70 mm on each side into the open position shown in FIG. 3.
  • the hydraulic cylinders (28) relieve the narrow side walls (5) when the format width changes. In this in Fig.
  • the continuous casting mold can be very easily conveyed out after a breakthrough or overflow over the casting strand end in the area of the mold. Due to the large opening width of the mold, the end of the strand is also exposed in the region of the pouring funnel, not shown in the drawing.
  • the cleaning and maintenance of the narrow and wide side walls (5, 9) and the replacement of the narrow side support plates (4) is also considerably simplified and facilitated by the adjustment device on the continuous casting mold designed according to the invention.
  • the adjustment and bracing device according to the invention can also be used in conventional molds with parallel broad side walls.
  • the opening width of the mold can also be made smaller, ie less than 70 mm.
  • the hydraulic cylinders (28) on the loose side relieve the narrow side walls (5). This results in a further pre-tensioning of the spring-elastic pull rod (7).
  • the support plates (4) can also be replaced during a casting break.
  • the two supporting frames (1, 2) carrying the broad side walls (9) are each provided with two guide rails (17) which are guided in guide pieces (18) and are centered in height.
  • the two narrow side parts (3) have different centering stones (19, 20) for the fixed or loose side.
  • the centering stones (19, 20) are aligned using set screws (21).
  • the contact surfaces of the narrow side parts (3) are very advantageously designed as water tensioning plates.
  • the cooling water passes from the mold lifting device, not shown in the drawing, via the water clamping plate, pipes (22) and compensators (23) to the wide side walls (9) and via pipes (24), hoses (25) and the narrow-wall side support (26) Narrow side walls (5).
  • the guide column of the narrow side part (3) serves to accommodate the narrow side adjustment unit (6), as a contact surface for the fixed side support frame (2), for guiding the tie rods (7) and for fastening the swivel bearing (27).
  • the loose side support frame (1) carrying the broad side wall can optionally also be braced against the narrow side walls (5) with four plate spring assemblies.
  • the fixed side support frame (2) is clamped against the narrow side part with a pull rod, a spacer ring is inserted between the central part and the fixed side support frame, which determines the position of the fixed side for centering.
  • the hollow piston cylinder is used to open the loose side pressurized until the disc springs no longer transmit tensile force to the pull rod. Then the tabs on the narrow side part are lifted off and the locking bolt is turned into the open position. The fixed and loose side support frames are then moved outwards with the hydraulic cylinders. The closing process takes place in reverse order.
  • the pull rod can also be very advantageously designed as an elastic expansion element, so that disc spring assemblies and hollow piston cylinders are omitted.
  • the fixed side is pulled against the narrow side part with two double-acting piston cylinders.
  • the loose side is also pulled against the narrow side walls with two double-acting piston cylinders.
  • Tie rods, disc springs and hollow piston cylinders are not used in this variant.
  • the forces in the mold during casting are absorbed and compensated by the hydraulic cylinders. Opening and closing the mold as well as relieving the pressure on the narrow side walls when changing the format width of the casting strand is also carried out with the help of the hydraulic cylinders.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Crushing And Grinding (AREA)
  • Valve Housings (AREA)
  • Braking Arrangements (AREA)
  • Mold Materials And Core Materials (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Materials For Medical Uses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

In the case of continuous casting moulds with two broad-side walls, which are arranged opposite one another on supporting frames in such a way that their shape gives a funnel-shaped free space and between which narrow-side walls adjustable relative to one another for the purpose of adjusting the format width are firmly clamped, mechanical clamping elements in operative connection with hydraulic cylinders being provided for clamping the narrow-side walls, the disassembly of the entire mould after a break-out or overflow and the cleaning of the narrow- and broad-side walls is relatively difficult due to the small opening width of the broad-side walls. This is particularly true for the maintenance of the mould and for the installation and removal of the narrow- and broad-side walls with their supporting elements. These difficulties are eliminated in a simple manner according to the invention by virtue of the fact that the supporting frames (1, 2) with their broad-side walls (9) are arranged in such a way in the continuous casting mould and connected in such a way to the clamping elements (7, 8) that they can be adjusted both towards one another and away from one another. In this way, it is possible for the supporting frames with their broad-side walls to be spread apart to such an extent that they are accessible from both sides, especially in the region of the narrow-side walls and can be cleaned, maintained and exchanged very easily. In particular, following a break-out or overflow the complete mould can be lifted away upwards over the funnel-shaped strand end solidified in the mould. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Stranggießkokille mit zwei auf Stützrahmen gegenüberliegend angeordneten Breitseitenwänden, zwischen denen zwecks Formatbreiteneinstellung gegeneinander verschiebbare Schmalseitenwände fest eingeklemmt sind, wobei zur Verspannung der zwischen den Breitseitenwanden befindlichen Schmalseitenwände mechanische Spannelemente vorgesehen sind, die mit hydraulischen Kolben-Zylindereinheiten in Wirkverbindng stehen.The invention relates to a continuous casting mold with two broad side walls arranged opposite one another on supporting frames, between which narrow side walls displaceable relative to one another are clamped in order to adjust the format width, mechanical tensioning elements being provided for bracing the narrow side walls located between the wide side walls, which are operatively connected to hydraulic piston-cylinder units.

Bei einer noch nicht veröffentlichten Patentanmeldung, die eine Stahlstranggießkokille obiger Bauart zum Gegenstand hat, sind zur Verspannung der zwischen den Breitseitenwänden befindlichen Schmalseitenwände als mechanische Spannelemente Druckfedern vorgesehen, deren Klemmkräfte durch parallel geschaltete Hydraulikzylinder verändert werden können. Die von den Druckfedern erzeugten Klemmkräfte sind hierbei entsprechend der zum Verstellen der Schmalseitenwände erforderlichen Anpreßkraft überhöht ausgelegt, und die hydraulischen Druckzylinder im Sinne einer Verminderung der Anpreßkraft beaufschlagbar. Ferner ist hierbei nur einer von den beiden Stützrahmen, an denen die Breitseitenwände befestigt sind, in der Stranggießkokille verstellbar angeordnet. Durch diese Ausgestaltung der Stahlstranggießkokille wird auf einfache Weise eine genaue Einstellung der Anpreßkräfte und eine erhöhte Betriebssicherheit gegen öffnen der Breitseitenwand beim Gießen erreicht. Üblicherweise sind die Breitseitenwände zueinander parallel angeordnet, um den Verstellweg für den einen Stützrahmen möglichst gering zu halten.In a not yet published patent application, which has a continuous steel casting mold of the above type, compression springs are provided as mechanical tensioning elements for clamping the narrow side walls located between the broad side walls, the clamping forces of which can be changed by hydraulic cylinders connected in parallel. The clamping forces generated by the compression springs are in this case designed to be excessive in accordance with the contact pressure required to adjust the narrow side walls, and the hydraulic pressure cylinders can be acted upon in order to reduce the contact pressure. Furthermore, only one of the two support frames is on which the broad side walls are attached, arranged adjustable in the continuous casting mold. This configuration of the continuous steel casting mold allows precise adjustment of the contact forces and increased operational safety against opening of the broad side wall during casting in a simple manner. The broad side walls are usually arranged parallel to one another in order to keep the adjustment path for the one support frame as short as possible.

Die Aufgabe der Erfindung besteht in einer weitergehenden Verbesserung der vorstehend angeführten Stranggießkokille, insbesondere hinsichtlich der Funktionsweise und der Wartung. Auch sollen Stranggießkokillen mit trichterförmigem Querschnitt der Breitseitenwände zueinander so ausgebildet werden, daß sie ein beidseitiges Verstellen ermöglichen, so z.­B. bei einem Durchbruch, der einen größeren Verstellweg erforderlich macht.The object of the invention consists in a further improvement of the above-mentioned continuous casting mold, in particular with regard to the functioning and maintenance. Continuous casting molds with a funnel-shaped cross-section of the broad side walls should also be designed in such a way that they enable adjustment on both sides, e.g. in the event of a breakthrough that requires a longer adjustment path.

Diese Aufgabe wird dadurch gelöst, daß die Stützrahmen mit ihren Breitseitenwänden in der Stranggießkokille so angeordnet und mit den Spannelementen verbunden sind, daß sie sowohl zueinander als auch voneinander verstellt werden können. Auf diese Weise können die Stützrahmen der Stranggießkokille mit ihren Breitseitenwänden soweit voneinander gespreizt werden, daß die an den Stützplatten angeordneten Schmalseitenwände von beiden Seiten zugängig, sehr leicht auch zusammen mit den Stützplatten ausgebaut und im Bedarfsfall erneuert werden können. Auch das Abreinigen der Stranggießkokille in den Schmalseitenbereichen sowie die Wartung der Stranggießkokille insgesamt wird hierdurch ganz wesentlich vereinfacht und erleichtert. Die Stützrahmen mit ihren Breitseitenwänden sind hierbei sehr vorteilhaft in der Stranggießkokille so angeordnet und mit den Spannelementen verbunden, daß sie um etwa 70 mm je Seite gespreizt werden können. Hierdurch kann das Strangende im Bereich der Kokille freigelegt und die Kokille leicht ausgebaut werden. So läßt sich die Kokille nach einem Durchbruch erfindungsgemäß über das in der Kokille erstarrte trichterförmige Strangende hinweg sehr leicht nach oben hin abheben.This object is achieved in that the support frames are arranged with their wide side walls in the continuous casting mold and are connected to the tensioning elements in such a way that they can be adjusted both to one another and from one another. In this way, the support frames of the continuous casting mold with their wide side walls can be spread apart from one another to such an extent that the narrow side walls arranged on the support plates are accessible from both sides, very easily removed together with the support plates and can be replaced if necessary. Also cleaning the continuous casting mold in the Narrow side areas as well as the maintenance of the continuous casting mold as a whole is thereby considerably simplified and facilitated. The support frames with their broad side walls are very advantageously arranged in the continuous casting mold and connected to the tensioning elements in such a way that they can be spread by about 70 mm on each side. As a result, the end of the strand in the area of the mold can be exposed and the mold can be easily removed. After a breakthrough, the mold can, according to the invention, very easily be lifted upwards over the funnel-shaped strand end that solidifies in the mold.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung besteht das mechanische Spannelement aus federelastischen Zugstangen aus Stahl, die die beiden Stützrahmen mit ihren Breitseitenwänden verbinden. Von diesen federelastischen Zugstangen werden die beim Gießvorgang des Metallstranges auftretenden Spannkräfte voll übernommen, so daß der Einbau von Tellerfederpaketen entfällt.According to a further advantageous embodiment of the invention, the mechanical clamping element consists of spring-elastic tie rods made of steel, which connect the two support frames with their broad side walls. From these spring-elastic tie rods, the clamping forces occurring during the casting process of the metal strand are fully taken over, so that the installation of disc spring assemblies is not necessary.

In weiterer vorteilhafter Ausgestaltung der Erfindung sind die federelastischen Zugstangen an einem Ende mit einer Keilnut versehen, in die beim Verspannen der Schmalseitenwände ein Keil eingeführt wird, der über eine Schubstange und ein Schwenklager mit einer hydraulischen Kolben-Zylindereinheit in Wirkverbindng steht. Diese Ausgestaltung gemäß der Erfindung ermöglicht mit einer hydraulischen Kolben-­Zylindereinheit auf einfache Weise die Verspannung bzw. ein aus reichend fest es Einklemmen und Verriegeln der Schmalseitenwände zwischen den Breitseitenwänden über beide federelastischen Zugstangen gleichzeitig.In a further advantageous embodiment of the invention, the resilient tie rods are provided at one end with a keyway into which a wedge is inserted when the narrow side walls are clamped and which is operatively connected to a hydraulic piston-cylinder unit via a push rod and a pivot bearing. This embodiment according to the invention enables bracing in a simple manner with a hydraulic piston-cylinder unit or a sufficiently firm to pinch and lock the narrow side walls between the broad side walls via both spring-elastic tie rods at the same time.

Ferner sind nach einer weiteren vorteilhaften Ausgestaltung der Erfindung die Stützrahmen mit Führungsschienen versehen, die auf Führungsstücken gleitend geführt sind. Hierdurch wird erreicht, daß die Stützrahmen, insbesondere die Festseite, mit ihren Breitseitenwänden nach dem öffnen (Spreizen) wiederum genau die ursprüngliche Position einnehmen und daher ein nachträgliches Ausrichten der Zentriersteine entfällt.Furthermore, according to a further advantageous embodiment of the invention, the support frames are provided with guide rails which are slidably guided on guide pieces. This ensures that the support frame, in particular the fixed side, with its broad side walls after opening (spreading) in turn occupy exactly the original position and therefore there is no need to subsequently align the centering stones.

Schließlich sind in weiterer vorteilhafter Ausgestaltung der Erfindung die die Schmalseitenwände tragenden und als Wasserspannplatten ausgebildeten Schmalseitenteile unverstellbar angeordnet und mit dem Kokillenhubtisch fest verbunden. Dies macht kein Verschieben auf den Dichtungsringen der Wasserspannplatte und auch keine zeitaufwendige Schlauchmontage beim Ein- und Ausbau der Stranggießkokille erforderlich.Finally, in a further advantageous embodiment of the invention, the narrow side parts that carry the narrow side walls and are designed as water tensioning plates are arranged in an unadjustable manner and are firmly connected to the mold lifting table. This means that there is no need to move the sealing rings of the water clamping plate and no time-consuming hose assembly when installing and removing the continuous casting mold.

Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Erläuterung einer in Zeichnungsfiguren schematisch dargestellten Stranggießkokille gemäß der Erfindung.Further details, features and advantages of the invention result from the following explanation of a continuous casting mold according to the invention, which is shown schematically in the drawing figures.

Es zeigen:

  • Fig. 1 eine Stranggießkokille gemäß der Erfindung in Seitenansicht,
  • Fig. 2 eine Draufsicht auf die Stranggießkokille gemäß Fig. 1 als Teillängsschnitt in geschlossener Position,
  • Fig. 3 eine Draufsicht auf die Stranggießkokille gemäß Fig. 1 im Teillängsschnitt in geöffneter Position,
  • Fig. 4 die federelastischen Zugstangen in verspannter Position mit Verspannvorrichtung im Schnitt,
  • Fig. 5 die federelastischen Zugstangen in entspannter offener Position mit Verspannvorrichtung im Schnitt.
Show it:
  • 1 is a continuous casting mold according to the invention in side view,
  • 2 is a plan view of the continuous casting mold according to FIG. 1 as a partial longitudinal section in the closed position,
  • 3 is a plan view of the continuous casting mold according to FIG. 1 in partial longitudinal section in the open position,
  • 4 the spring-elastic tie rods in the clamped position with the clamping device in section,
  • Fig. 5 shows the resilient tie rods in a relaxed open position with a tensioning device in section.

Wie die Figuren 1 und 2 zeigen, besteht die Stranggießkokille aus einem Stützrahmen (1) für die Losseite und einem Stützrahmen (2) für die Festseite sowie aus den Schmalseitenteilen (3) und den Stützplatten (4). Auf den Stützrahmen (1) und (2) sind innen die Breitseitenwände (9) und an den Stützplatten (4) die Schmalseitenwände (5) angeordnet. Sowohl die Breitseitenwände (9) als auch die Schmalseitenwände (5) sind hierbei als Kupferplatten ausgebildet und mit den Stützrahmen (1, 2) bzw. mit den Stützplatten (4) mittels in den Zeichnungsfiguren nicht näher dargestellten Schrauben lösbar verbunden. Ferner ist die Stranggießkokille beidseitig mit einer Schmalseitenverstelleinrichtung (6) versehen (in Fig. 1 links im Schnitt zu erkennen). Die beiden Stützrahmen (1, 2) mit ihren gegenüberliegend angeordneten Breitseitenwänden (9) werden gemäß der Erfindung mit Hilfe von federelastischen Zugstangen (7) und Keilen (8), die als Spannelemente dienen, gegen die Schmalseitenwände (5) fest verspannt. Hierzu ist jede federelastische Zugstange (7) an einem Ende mit einer Keilnut (7′) versehen, in die beim Verspannen der Schmalseitenwände (5) zwischen den Breitseitenwänden (9) der Keil (8) eingeschoben wird, und zwar mittels einer hydraulischen Kolben-­Zylindereinheit (10), die, wie insbesondere die Figuren 4 und 5 zeigen, über ein Schwenklager (11) und Schubstangen (13) mit dem Keil (8) bzw. Keilen (8) in Wirkverbindung steht. Die hierbei erforderliche Anpreßkraft der Breitseitenwände (9) auf die Schmalseitenwände (5) läßt sich durch den Druck der vom Hydraulikzylinder der hydraulischen Kolbenzylindereinheit (10) auf das Spannelement (Keil 8) wirkt, sehr leicht und genau einstellen. Das Schwenklager (11) ist hierbei, wie Fig. 1 zeigt, auf die Kolbenstange (11′) des Hydraulikzylinders der Kolben-Zylindereinheit (10) aufgeschraubt, wodurch die Montage und Demontage der Kolben-Zylindereinheit (10) vereinfacht und erleichtert wird. Dieses mit der Kolbenstange (11′) der Kolben-Zylindereinheit (10) lösbar verbundene Schwenklager (11) steht seinerseits über einen Bolzen (12) mit den beiden Schubstangen (13) und andererseits mit den als Keile (8) ausgebildeten Spannelementen in Verbindung. Zur Führung der Keile (8) dient eine in einem Lagerkörper (14) angeordnete Buchse (15). Der Lagerkörper (14) selbst ist am Stützrahmen (1) der Losseite angeschweißt.As Figures 1 and 2 show, the continuous casting mold consists of a support frame (1) for the loose side and a support frame (2) for the fixed side as well as the narrow side parts (3) and the support plates (4). The broad side walls (9) are arranged on the inside of the support frames (1) and (2) and the narrow side walls (5) are arranged on the support plates (4). Both the broad side walls (9) and the narrow side walls (5) are designed as copper plates and are not shown in detail with the support frames (1, 2) or with the support plates (4) in the drawing figures shown screws releasably connected. Furthermore, the continuous casting mold is provided on both sides with a narrow side adjustment device (6) (can be seen in section on the left in FIG. 1). According to the invention, the two support frames (1, 2) with their broad side walls (9) arranged opposite are firmly clamped against the narrow side walls (5) with the aid of spring-elastic tie rods (7) and wedges (8), which serve as tensioning elements. For this purpose, each resilient tie rod (7) is provided at one end with a keyway (7 ') into which the wedge (8) is inserted between the broad side walls (9) when the narrow side walls (5) are clamped, by means of a hydraulic piston Cylinder unit (10), which, as particularly shown in Figures 4 and 5, is operatively connected to the wedge (8) or wedges (8) via a pivot bearing (11) and push rods (13). The contact pressure of the broad side walls (9) on the narrow side walls (5) required here can be adjusted very easily and precisely by the pressure of the hydraulic cylinder of the hydraulic piston-cylinder unit (10) on the tensioning element (wedge 8). The pivot bearing (11) is, as shown in Fig. 1, screwed onto the piston rod (11 ') of the hydraulic cylinder of the piston-cylinder unit (10), whereby the assembly and disassembly of the piston-cylinder unit (10) is simplified and facilitated. This with the piston rod (11 ') of the piston-cylinder unit (10) detachably connected pivot bearing (11) is in turn via a pin (12) with the two push rods (13) and on the other hand with the as wedges (8) trained clamping elements in connection. A bushing (15) arranged in a bearing body (14) serves to guide the wedges (8). The bearing body (14) itself is welded to the support frame (1) on the loose side.

Auf der Festseite sind die federelastischen Zugstangen (7) an ihrem Bund (16′) fest mit dem Stützrahmen (2) verschraubt. Um die Lage der an den Zugstangen (7) angeordneten Keilnuten (7′), insbesondere mit der Änderung der Formatdicke des Gießstranges in Übereinstimmung zu bringen, sind, wie insbesondere die Fig. 4 zeigt, zwischen dem Bund (16′) und dem Stützrahmen (2) Beilagen (16) unterschiedlicher Stärke angeordnet, durch die Maßunterschiede ausgeglichen werden.On the fixed side, the resilient tie rods (7) are firmly screwed to the support frame (2) on their collar (16 '). In order to bring the position of the splines (7 ') arranged on the tie rods (7), in particular with the change in the format thickness of the casting strand, are, as shown in particular in FIG. 4, between the collar (16') and the support frame (2) Supplements (16) of different thickness arranged, by means of which differences in size are compensated.

Zum Spreizen der Stützrahmen (1, 2) mit den Breitseitenwänden (9) sind, wie Fig. 4 zeigt, an den Stützrahmen (1, 2) der Fest- und Losseite je zwei Hydraulikzylinder (28) zwischen den Zugstangen (7) eingeschraubt. Dies erfordert vorher das Auskuppeln der als Spannelemente dienenden Keile (8) mit Hilfe der hydraulischen Kolbenzylindereinheit (10) in die in Fig. 5 dargestellte entriegelte Position. Die Stützrahmen (1, 2) lassen sich anschließend mit ihren Breitseitenwänden (9) sehr vorteilhaft gegenüber den Schmalseitenwänden (5) um ca. 70 mm nach jeder Seite in die in Fig. 3 aufgezeigte, geöffnete Stellung verschieben. Im übrigen entlasten die Hydraulikzylinder (28) die Schmalseitenwände (5) bei Änderung der Formatbreite. In dieser in Fig. 3 aufgezeigten, geöffneten Stellung der Stützrahmen (1, 2) mit den Breitseitenwänden (9) läßt sich die Stranggießkokille sehr leicht nach einem Durchbruch bzw. überläufer über das Gießstrangende im Bereich der Kokille ausfördern. Durch die große öffnungsweite der Kokille liegt das Strangende auch im Bereich des in der Zeichnung nicht näher dargestellten Eingußtrichters frei. Auch das Reinigen und Warten der Schmal- und Breitseitenwände (5, 9) sowie das Auswechseln der Schmalseitenstützplatten (4) wird durch die erfindungsgemäß ausgebildete Verstelleinrichtung an der Stranggießkokille ganz wesentlich vereinfacht und erleichtert. Darüberhinaus läßt sich die Verstell- und Verspanneinrichtung gemäß der Erfindung auch bei herkömmlichen Kokillen mit parallelen Breitseitenwänden anwenden. Die öffnungsweite der Kokille kann hierbei auch kleiner, d. h. unter 70 mm, ausgeführt werden.For spreading the support frames (1, 2) with the wide side walls (9), as shown in FIG. 4, two hydraulic cylinders (28) are screwed between the tie rods (7) on the support frames (1, 2) on the fixed and loose sides. This requires previously disengaging the wedges (8) serving as tensioning elements with the aid of the hydraulic piston-cylinder unit (10) into the unlocked position shown in FIG. 5. The support frames (1, 2) can then be moved with their broad side walls (9) very advantageously compared to the narrow side walls (5) by about 70 mm on each side into the open position shown in FIG. 3. In addition, the hydraulic cylinders (28) relieve the narrow side walls (5) when the format width changes. In this in Fig. 3rd shown, open position of the support frame (1, 2) with the wide side walls (9), the continuous casting mold can be very easily conveyed out after a breakthrough or overflow over the casting strand end in the area of the mold. Due to the large opening width of the mold, the end of the strand is also exposed in the region of the pouring funnel, not shown in the drawing. The cleaning and maintenance of the narrow and wide side walls (5, 9) and the replacement of the narrow side support plates (4) is also considerably simplified and facilitated by the adjustment device on the continuous casting mold designed according to the invention. In addition, the adjustment and bracing device according to the invention can also be used in conventional molds with parallel broad side walls. The opening width of the mold can also be made smaller, ie less than 70 mm.

Wenn im Einsatz der Stranggießkokille eine Änderung der Formatbreite durch Verschieben der Schmalseitenwände (5) erforderlich ist, entlasten die Hydraulikzylinder (28) auf der Losseite die Schmalseitenwände (5). Dies hat eine weitere Vorspannung der federelastischen Zugstange (7) zur Folge. Im geöffneten Zustand der Stranggießkokille ist ein Auswechseln der Stützplatten (4) auch während einer Gießpause möglich. Die beiden die Breitseitenwände (9) tragenden Stützrahmen (1, 2) sind mit je zwei Führungsschienen (17) versehen, die in Führungsstücken (18) geführt sind und in der Höhe zentriert werden.If it is necessary to change the format width by moving the narrow side walls (5) when using the continuous casting mold, the hydraulic cylinders (28) on the loose side relieve the narrow side walls (5). This results in a further pre-tensioning of the spring-elastic pull rod (7). In the open state of the continuous casting mold, the support plates (4) can also be replaced during a casting break. The two supporting frames (1, 2) carrying the broad side walls (9) are each provided with two guide rails (17) which are guided in guide pieces (18) and are centered in height.

Die beiden Schmalseitenteile (3) besitzen für die Fest- bzw. Losseite unterschiedliche Zentriersteine (19, 20). Das Ausrichten der Zentriersteine (19, 20) erfolgt mit Hilfe von Stellschrauben (21 ). Die Aufsetzflächen der Schmalseitenteile (3) sind hierbei sehr vorteilhaft als Wasserspannplatten ausgebildet. Das Kühlwasser gelangt von der in der Zeichnung nicht näher dargestellten Kokillenhubvorrichtung über die Wasserspannplatte, Rohrleitungen (22) und Kompensatoren (23) zu den Breitseitenwänden (9) sowie über Rohrleitungen (24), Schäuche (25) und dem Schmalwandseitenträger (26) zu den Schmalseitenwänden (5). Die Führungssäule des Schmalseitenteils (3) dient zur Aufnahme der Schmalseitenverstelleinheit (6), als Anlagefläche für den Festseitenstützrahmen (2), zur Führung der Zugstangen (7) sowie zur Befestigung des Schwenklagers (27).The two narrow side parts (3) have different centering stones (19, 20) for the fixed or loose side. The centering stones (19, 20) are aligned using set screws (21). The contact surfaces of the narrow side parts (3) are very advantageously designed as water tensioning plates. The cooling water passes from the mold lifting device, not shown in the drawing, via the water clamping plate, pipes (22) and compensators (23) to the wide side walls (9) and via pipes (24), hoses (25) and the narrow-wall side support (26) Narrow side walls (5). The guide column of the narrow side part (3) serves to accommodate the narrow side adjustment unit (6), as a contact surface for the fixed side support frame (2), for guiding the tie rods (7) and for fastening the swivel bearing (27).

Der Gegenstand der Erfindung ist nicht auf das in den Zeichnungsfiguren dargestellte Ausführungsbeispiel beschränkt. So kann beispielsweise der die Breitseitenwand tragende Losseitenstützrahmen (1) gegebenenfalls auch mit vier Tellerfederpaketen gegen die Schmalseitenwände (5) verspannt werden. Der Festseitenstützrahmen (2) wird hierbei mit einer Zugstange gegen das Schmalseitenteil verspannt, ein Distanzring zwischen Mittelteil und Festseitenstützrahmen eingelegt, der die Lage der Festseite zur Zentrierung bestimmt.The object of the invention is not limited to the embodiment shown in the drawing figures. For example, the loose side support frame (1) carrying the broad side wall can optionally also be braced against the narrow side walls (5) with four plate spring assemblies. The fixed side support frame (2) is clamped against the narrow side part with a pull rod, a spacer ring is inserted between the central part and the fixed side support frame, which determines the position of the fixed side for centering.

Zum öffnen der Losseite wird der Hohlkolbenzylinder mit Druck beaufschlagt, bis die Tellerfedern keine Zugkraft mehr auf die Zugstange übertragen. Anschließend werden die Laschen auf dem Schmalseitenteil abgehoben und der Verriegelungsbolzen in die öffnungsstellung gedreht. Mit den Hydraulikzylindern werden dann die Fest- und Losseitenstützrahmen nach außen verschoben. Der Schließvorgang erfolgt in umgekehrter Reihenfolge.The hollow piston cylinder is used to open the loose side pressurized until the disc springs no longer transmit tensile force to the pull rod. Then the tabs on the narrow side part are lifted off and the locking bolt is turned into the open position. The fixed and loose side support frames are then moved outwards with the hydraulic cylinders. The closing process takes place in reverse order.

In Abänderung dieser vorstehend geschilderten Ausgestaltung der Kokille gemäß der Erfindung kann die Zugstange auch sehr vorteilhaft als elastisches Dehnelement ausgeführt werden, so daß Tellerfederpakete und Hohlkolben-Zylinder entfallen.In a modification of the above-described embodiment of the mold according to the invention, the pull rod can also be very advantageously designed as an elastic expansion element, so that disc spring assemblies and hollow piston cylinders are omitted.

Gemäß einer anderen Variante des Erfindungsgegenstandes wird die Festseite mit zwei doppeltwirkenden Kolben-Zylindern gegen das Schmalseitenteil gezogen. Die Losseite wird ebenfalls mit zwei doppeltwirkenden Kolben-Zylindern gegen die Schmalseitenwände gezogen. Zuganker, Tellerfedern und Hohlkolbenzylinder werden bei dieser Variante nicht eingesetzt. Die während des Gießens auftretenden Kräfte in der Kokille werden von den Hydraulikzylindern aufgenommen und kompensiert. Das öffnen und Schließen der Kokille sowie das Entlasten der Schmalseitenwände bei Änderung der Formatbreite des Gießstranges erfolgt hierbei ebenfalls mit Hilfe der Hydraulikzylinder.According to another variant of the subject matter of the invention, the fixed side is pulled against the narrow side part with two double-acting piston cylinders. The loose side is also pulled against the narrow side walls with two double-acting piston cylinders. Tie rods, disc springs and hollow piston cylinders are not used in this variant. The forces in the mold during casting are absorbed and compensated by the hydraulic cylinders. Opening and closing the mold as well as relieving the pressure on the narrow side walls when changing the format width of the casting strand is also carried out with the help of the hydraulic cylinders.

Claims (6)

1. Stranggießkokille mit zwei auf Stützrahmen gegenüberliegend angeordneten Breitseitenwänden, zwischen denen zwecks Formatbreiteneinstellung gegeneinander verschiebbare Schmalseitenwände fest eingeklemmt sind, wobei zur Verspannung der zwischen den Breitseitenwänden befindlichen Schmalseitenwände mechanische Spannelemente vorgesehen sind, die mit hydraulischen Kolben-Zylindereinheiten in Wirkverbindung stehen, dadurch gekennzeichnet, daß die Stützrahmen (1, 2) mit ihren Breitseitenwänden (9) in der Stranggießkokille so angeordnet und mit den Spannelementen (7, 8) verbunden sind, daß sie sowohl zueinander als auch voneinander verstellt werden können.1. Continuous casting mold with two broad side walls arranged opposite one another on support frames, between which narrow side walls which can be displaced relative to one another for the purpose of setting the format width are firmly clamped, mechanical tensioning elements being provided for bracing the narrow side walls located between the wide side walls, which are operatively connected to hydraulic piston-cylinder units, characterized in that the support frames (1, 2) are arranged with their wide side walls (9) in the continuous casting mold and are connected to the tensioning elements (7, 8) in such a way that they can be adjusted both to one another and from one another. 2. Stranggießkokille nach Anspruch 1,
dadurch gekennzeichnet daß die Stützrahmen (1 , 2) mit ihren Breitseitenwänden (9) in der Stranggießkokille so angeordnet und mit den Spannelementen (7, 8) verbunden sind, daß sie gegen die Schmalseitenwände (5) um etwa 70 mm je Seite gespreizt werden können.2. Continuous casting mold according to claim 1,
characterized in that the support frames (1, 2) are arranged with their wide side walls (9) in the continuous casting mold and are connected to the tensioning elements (7, 8) in such a way that they can be spread against the narrow side walls (5) by about 70 mm per side . 3. Stranggießkokille nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die mechanischen Spannelemente aus federelastischen Zugstangen (7) aus Stahl bestehen, die die beiden Stützrahmen (1, 2) mit ihren Breitseitenwänden (9) verbinden.3. Continuous casting mold according to claim 1 or 2,
characterized in that the mechanical tensioning elements consist of spring-elastic tie rods (7) made of steel, which connect the two support frames (1, 2) with their broad side walls (9). 4. Stranggießkokille nach Anspruch 3, dadurch gekennzeichnet, daß die federelastischen Zugstangen (7) an einem Ende mit einer Keilnut (7′) versehen snd, in die beim Verpannen der Schmalseitenwände (5) ein Keil (8) eingeführt wird, der über eine Schubstange (13) und ein Schwenklager (11) mit einer hydraulischen Kolben-Zylindereinheit (10) in Wirkverbindung steht.4. Continuous casting mold according to claim 3, characterized in that the resilient tie rods (7) are provided at one end with a keyway (7 '), into which a wedge (8) is inserted when the narrow side walls (5) are braced Push rod (13) and a pivot bearing (11) with a hydraulic piston-cylinder unit (10) is in operative connection. 5. Stranggießkokille nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Stützrahmen (1, 2) mit Führungsschienen (17) versehen sind, die auf Führungsstücken (18) gleitend geführt sind.5. Continuous casting mold according to one or more of claims 1 to 4, characterized in that the support frames (1, 2) are provided with guide rails (17) which are guided on guide pieces (18) slidably. 6. Stranggießkokille nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß die die Schmalseitenwände (5) tragenden und als Wasserspannplatten ausgebildeten Schmalseitenteile (3) unverstellbar angeordnet und mit dem Kokillenhubtisch fest verbunden sind.6. Continuous casting mold according to one or more of the preceding claims 1 to 5,
characterized in that the narrow side parts (3) carrying the narrow side walls (5) and in the form of water tensioning plates are arranged in an unadjustable manner and are firmly connected to the mold lifting table.
EP90115910A 1989-09-11 1990-08-20 Continuous casting mould Expired - Lifetime EP0417504B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3930265 1989-09-11
DE3930265A DE3930265A1 (en) 1989-09-11 1989-09-11 CONTINUOUS CHOCOLATE

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EP0417504A2 true EP0417504A2 (en) 1991-03-20
EP0417504A3 EP0417504A3 (en) 1993-03-17
EP0417504B1 EP0417504B1 (en) 1996-01-03

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ID=6389155

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EP90115910A Expired - Lifetime EP0417504B1 (en) 1989-09-11 1990-08-20 Continuous casting mould

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US (1) US5085263A (en)
EP (1) EP0417504B1 (en)
JP (1) JPH03264144A (en)
AT (1) ATE132407T1 (en)
CA (1) CA2024838C (en)
DE (2) DE3930265A1 (en)
DK (1) DK0417504T3 (en)
ES (1) ES2081882T3 (en)

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Publication number Priority date Publication date Assignee Title
DE4444976A1 (en) * 1993-12-20 1995-06-22 Voest Alpine Ind Anlagen Continuous-casting plate mould
DE4444941A1 (en) * 1993-12-20 1995-06-22 Voest Alpine Ind Anlagen A continuously casting chill mould for rectangular slabs
DE19716664C2 (en) * 1997-04-22 1999-11-18 Schloemann Siemag Ag Method and device for bracing two opposite broad side walls of a continuous casting mold
DE4447941B4 (en) * 1993-12-20 2006-06-14 Voest-Alpine Industrieanlagenbau Gmbh A continuously casting chill mould for rectangular slabs - which reduces construction costs, maintenance and mould change times, without sacrificing rigidity
WO2012013450A1 (en) 2010-07-28 2012-02-02 Sms Siemag Ag Continuous casting mold
CN103192040A (en) * 2013-04-15 2013-07-10 中国重型机械研究院股份公司 Crystallizer system for continuously casting double-flow plate blanks
RU2769679C1 (en) * 2021-08-05 2022-04-05 Федеральное государственное бюджетное образовательное учреждение высшего образования "Комсомольский-на-Амуре государственный университет" (ФГБОУ ВО "КнАГУ") Device for production of continuously cast deformed billets

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Publication number Priority date Publication date Assignee Title
DE19753959A1 (en) * 1997-12-05 1999-06-10 Schloemann Siemag Ag Chill with broadside and narrow side adjustment
KR20040017554A (en) * 2002-08-22 2004-02-27 주식회사 포스코 Apparatus for adjusting the width mold, using hydraulic system
US6857464B2 (en) * 2002-09-19 2005-02-22 Hatch Associates Ltd. Adjustable casting mold
AT521535B1 (en) * 2018-07-18 2021-10-15 Primetals Technologies Austria GmbH Mold for producing a cast strand

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US4147202A (en) * 1977-08-30 1979-04-03 Clesid S.A. Continuous casting ingot mould
EP0107564A1 (en) * 1982-10-08 1984-05-02 Clecim Apparatus for the adjustment of a continuous-casting mould
DE3833014A1 (en) * 1988-09-29 1990-04-05 Schloemann Siemag Ag Continuous steel-casting mould

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US3375865A (en) * 1964-10-26 1968-04-02 Tsnii Chernoj Metallurg Mould for a continuous casting machine
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US4147202A (en) * 1977-08-30 1979-04-03 Clesid S.A. Continuous casting ingot mould
EP0107564A1 (en) * 1982-10-08 1984-05-02 Clecim Apparatus for the adjustment of a continuous-casting mould
DE3833014A1 (en) * 1988-09-29 1990-04-05 Schloemann Siemag Ag Continuous steel-casting mould

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4444976A1 (en) * 1993-12-20 1995-06-22 Voest Alpine Ind Anlagen Continuous-casting plate mould
DE4444941A1 (en) * 1993-12-20 1995-06-22 Voest Alpine Ind Anlagen A continuously casting chill mould for rectangular slabs
AT400416B (en) * 1993-12-20 1995-12-27 Voest Alpine Ind Anlagen CONTINUOUS PLATE CHOCOLATE
DE4444976C2 (en) * 1993-12-20 1999-03-18 Voest Alpine Ind Anlagen Continuous casting plate mold
DE4444941C2 (en) * 1993-12-20 1999-03-18 Voest Alpine Ind Anlagen Continuous casting mold
DE4444941C3 (en) * 1993-12-20 2003-07-24 Voest Alpine Ind Anlagen continuous casting
DE4447941B4 (en) * 1993-12-20 2006-06-14 Voest-Alpine Industrieanlagenbau Gmbh A continuously casting chill mould for rectangular slabs - which reduces construction costs, maintenance and mould change times, without sacrificing rigidity
DE19716664C2 (en) * 1997-04-22 1999-11-18 Schloemann Siemag Ag Method and device for bracing two opposite broad side walls of a continuous casting mold
WO2012013450A1 (en) 2010-07-28 2012-02-02 Sms Siemag Ag Continuous casting mold
DE102010061828A1 (en) 2010-07-28 2012-02-02 Sms Siemag Ag continuous casting
CN103192040A (en) * 2013-04-15 2013-07-10 中国重型机械研究院股份公司 Crystallizer system for continuously casting double-flow plate blanks
RU2769679C1 (en) * 2021-08-05 2022-04-05 Федеральное государственное бюджетное образовательное учреждение высшего образования "Комсомольский-на-Амуре государственный университет" (ФГБОУ ВО "КнАГУ") Device for production of continuously cast deformed billets

Also Published As

Publication number Publication date
ATE132407T1 (en) 1996-01-15
CA2024838C (en) 2001-01-23
CA2024838A1 (en) 1991-03-12
EP0417504B1 (en) 1996-01-03
ES2081882T3 (en) 1996-03-16
DE3930265A1 (en) 1991-03-14
EP0417504A3 (en) 1993-03-17
US5085263A (en) 1992-02-04
DE59010030D1 (en) 1996-02-15
JPH03264144A (en) 1991-11-25
DK0417504T3 (en) 1996-01-29

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