EP1057556B1 - Continuous casting mould for continuous casting, preferably of thin steel slabs - Google Patents
Continuous casting mould for continuous casting, preferably of thin steel slabs Download PDFInfo
- Publication number
- EP1057556B1 EP1057556B1 EP00109683A EP00109683A EP1057556B1 EP 1057556 B1 EP1057556 B1 EP 1057556B1 EP 00109683 A EP00109683 A EP 00109683A EP 00109683 A EP00109683 A EP 00109683A EP 1057556 B1 EP1057556 B1 EP 1057556B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- continuous casting
- side plates
- water tanks
- casting mould
- mold
- 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
Links
- 238000009749 continuous casting Methods 0.000 title claims description 20
- 229910000831 Steel Inorganic materials 0.000 title claims description 5
- 239000010959 steel Substances 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000005452 bending Methods 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
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
- B22D11/05—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having adjustable 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
- B22D11/0408—Moulds for casting thin slabs
Definitions
- the invention relates to a continuous casting mold for the continuous casting of slabs Steel, in particular of thin slabs, comprising broad side plates and between their ends by means of mechanical or hydromechanical clamping elements clampable, position-adjustable narrow side plates and narrow side plate holders, water boxes are assigned to the broad side plates.
- EP-A-0920937 describes prior art according to Article / 54 (3) EPC and discloses a type of Mold with two opposite, designed as a support frame and with coolable plates made mainly of copper Wide side walls. Between these are relative for format size adjustment mutually displaceable, coolable narrow side walls are held clamped, force means are provided for clamping them between the broad side walls are whose clamping path and / or clamping force is adjustable.
- the mold is improved in that it supports the copper plates Broad sidewalls and narrow sidewalls within one to accommodate the suitable dimensionally stable outer frame acting on the mold walls is arranged to form a self-contained force system.
- Document DE 197 16 664 A1 discloses a method for bracing two opposite broad side walls of a continuous casting mold with in between Distance adjustable to determine the format width and preferably clampable held narrow side walls, with their mutual bracing Tie rods made of steel are used in cooperation with actuators such as screw connections and spring assemblies, wedges or hydraulic units can be brought up to tension or detached for the purpose of adjusting the narrow side walls are.
- the broad side walls are supported on support frames and the tie rods are through guide openings provided in these and in the broad side walls passed.
- the known type requires, as can be seen in particular from FIGS. 1 and 2 is the arrangement of a large number of individual comparatively small spring elements, and a fixed, heavy base frame that spans the mold.
- the entire system is dismantled when the spring adjustment is changed and reassembled after replacing a large number of individual springs.
- the object of the invention to improve the known designs by that a frictional connection of the mold system directly between water boxes and Narrow side supports without detour via an external base or stenter frame will be produced.
- the manufacturing and assembly of the whole Chill mold system is simplified, the overall vibrating masses essential be reduced. And finally, all movements and forces should stop operational heat during casting in the mold / water box system be included without dimensional changes of the Enter extruded profile.
- the adjustment device for the Narrow side plates is held by a carrier plate, which is in positive and non-positive communicates with the water boxes or interlocks with the inner ones Panels of the water boxes is embedded.
- the narrow-side adjustment device remains in place all forces and deformations from thermal expansion into the casting format the copper plates almost without influence on the format of the mold.
- the water boxes under Compensation of all outward forces from the mold system with the formation of comparatively extremely bend-resistant box profiles in cooperation with their end clamping elements a self-contained Train the frame system.
- a great advantage is the non-positive and heat-conducting system of the water tanks on the wide side plates of the mold without mechanical connecting elements an unimpeded extensibility due to the influence of heat between mold plates and water boxes, ensuring a transmission of movements or forces from operational heat during casting in the System of the mold / water boxes can be compensated for automatically, without dimensional System changes are enforced.
- Both the mold plates, as well as the water boxes with their side supports can be independent of each other expand freely and consequently avoid the development of tension and the resulting impermissible forces.
- the construction of the continuous casting mold apparent from the overview of FIGS. 1 to 3 according to the invention comprises broad side plate 1 and between the ends thereof by means of clamping force of mechanical or hydromechanical clamping elements 7, 7 'positionally adjustable narrow side plates 2, 2' and their adjustment devices 4, 4 ', the broad side plates 1 water boxes 3, 3 'are assigned.
- the design of the mold according to the invention provides that the water boxes 3, 3 ' with protrusion 11, 11 'on both sides, both over the broad side plates 1 and are formed beyond the narrow side plates 2, 2 'and non-positively as well thermally conductive to the broad side plates 1 in the function of a Tenter frame at its ends, the clamping elements 7, 7 '.
- a further expedient embodiment provides that the water boxes 3, 3 ' have at their ends recesses 5, 5 'which accommodate the clamping elements 7, 7 'are formed.
- the water boxes 3, 3 ', the recesses 5, 5' have outwardly bounding side supports 10, 10 ', which have connections 8, 8 'are equipped for cooling water.
- FIGS. 1 and 3 form the water boxes 3, 3 'with compensation for all from the mold system outward forces and the formation of comparatively extremely resistant to bending Box profiles 9, 9 'in cooperation with the their protruding ends connected clamping elements 7, 7 'a self-contained Frame system.
- Essential to the invention is the shape and design of the water boxes 3, 3 ', in the vertical Projection seen, with tapered ends 14, 14 'of their box profile 9, 9 'and reinforced outer plates 15, 15' in the central area of that one Carrier of the same bending stress with an approximately evenly distributed Approximate load when resting on two end supports. This will an extremely high moment of resistance against bending stress of the water boxes reached so that this without weakening due to a deflection from the clamping elements 7, 7 'applied clamping forces on the mold broadside plates 1 are able to transfer.
- the invention improves known types of continuous casting molds, among others. to the effect that manufacturing and assembly are simplified and at the same time a reduction of the vibrating masses is reached. Because moreover as a result of free Elasticity between mold plates and water boxes all movements and Forces from operational heat during casting in the system of the mold water boxes shifts and deformations can be included be avoided between broad sides and narrow sides of the mold.
Abstract
Description
Die Erfindung betrifft eine Stranggießkokille zum Stranggießen von Brammen aus Stahl, insbesondere von Dünnbrammen, umfassend Breitseitenplatten und zwischen deren Enden mittels mechanischer oder hydromechanischer Spannelemente einspannbare, lageverstellbare Schmalseitenplatten und Schmalseitenplattenhalter, wobei den Breitseitenplatten Wasserkästen zugeordnet sind.The invention relates to a continuous casting mold for the continuous casting of slabs Steel, in particular of thin slabs, comprising broad side plates and between their ends by means of mechanical or hydromechanical clamping elements clampable, position-adjustable narrow side plates and narrow side plate holders, water boxes are assigned to the broad side plates.
Stranggießkokillen der vorgenannten Bauart sind bekannt.Continuous casting molds of the aforementioned type are known.
Die EP-A-0920937 beschreibt Stand der Technik gemäß Article/ 54(3) EPÜ und offenbart eine Bauart einer Kokille mit zwei gegenüberliegend angeordneten, als Stützrahmen ausgebildeten und mit überwiegend aus Kupfer bestehenden Platten versehenen, kühlbaren Breitseitenwänden. Zwischen diesen sind zwecks Formatbreiteneinstellung relativ zueinander verschiebbare kühlbare Schmalseitenwände einspannbar gehalten, wobei für deren Einspannung zwischen den Breitseitenwänden Kraftmittel vorgesehen sind, deren Spannweg und/oder Spannkraft einstellbar ist.EP-A-0920937 describes prior art according to Article / 54 (3) EPC and discloses a type of Mold with two opposite, designed as a support frame and with coolable plates made mainly of copper Wide side walls. Between these are relative for format size adjustment mutually displaceable, coolable narrow side walls are held clamped, force means are provided for clamping them between the broad side walls are whose clamping path and / or clamping force is adjustable.
Die Kokille wird dadurch verbessert, daß sie mit ihren die Kupferplatten tragenden Breitseitenwänden und Schmalseitenwänden innerhalb eines zur Aufnahme der auf die Kokillenwände einwirkenden Kräfte geeigneten formstabilen Außenrahmens unter Ausbildung eines in sich geschlossenen Kräftesystems angeordnet ist. The mold is improved in that it supports the copper plates Broad sidewalls and narrow sidewalls within one to accommodate the suitable dimensionally stable outer frame acting on the mold walls is arranged to form a self-contained force system.
Mit dieser Ausbildung der Kokille wird die Aufgabe gelöst, eine vierteilige Spreizkokille derart zu verbessern, daß beim Spannen und Entspannen der Breitseitenwände zwecks Formatbreiteneinstellung der Schmalseitenwände eine Übertragung von Kräften auf die die Kokille aufnehmende Hubvorrichtung vermieden wird und die Kokille als ein in sich geschlossenes Kräftesystem ausgebildet ist. Der technische Aufwand für die Ausgestaltung und Anordnung des die Wasserkästen an den Außenflächen der Kokillenbreitseitenwände überlagernden Außenrahmens ist wirtschaftlich vertretbar.With this design of the mold, the task is solved, a four-part expansion mold to improve such that when tensioning and relaxing the broad side walls a transfer to adjust the width of the narrow side walls of forces on the lifting device receiving the mold is avoided and the mold is designed as a self-contained system of forces. The technical effort for the design and arrangement of the water tanks on the outer surfaces of the mold side walls overlaying the outer frame is economically justifiable.
Das Dokument DE 197 16 664 A1 offenbart ein Verfahren zum Verspannen zweier gegenüberliegender Breitseitenwände einer Stranggießkokille mit dazwischen im Abstand zwecks Festlegung der Formatbreite einstellbaren und bevorzugt klemmbar gehaltenen Schmalseitenwänden, wobei zu deren gegenseitiger Verspannung Zuganker aus Stahl verwendet werden, die im Zusammenwirken mit Stellgliedem wie Schraubverbindungen und Federpaketen, Keilen oder Hydraulikaggregaten auf Spannung bringbar oder zwecks Verstellen der Schmalseitenwände lösbar sind.Document DE 197 16 664 A1 discloses a method for bracing two opposite broad side walls of a continuous casting mold with in between Distance adjustable to determine the format width and preferably clampable held narrow side walls, with their mutual bracing Tie rods made of steel are used in cooperation with actuators such as screw connections and spring assemblies, wedges or hydraulic units can be brought up to tension or detached for the purpose of adjusting the narrow side walls are.
Die Breitseitenwände sind an Stützrahmen abgestützt und die Zuganker sind durch in diesen sowie in den Breitseitenwänden vorhandene Führungsöffnungen hindurchgeführt. An ihren herausragenden glatten Enden sind Klemmelemente und an den Gewindeenden sind Schraubverbindungen unter Zwischenlage von Tellerfederpaketen angeordnet. Diese sind an Stützrahmen abgestützt. Durch diese Bauart wird einerseits die Montage und Verstellbarkeit der Kokillenschmalseiten vereinfacht und andererseits eine Beschädigung der Kokille bei Störungen vermieden, bspw. bei Auftreten von überhöhten Druckspitzen, durch angepaßtes Einstellen der Breitseiten-Spannkräfte gegen die Schmalseiten bzw. durch die Möglichkeit eines partiellen Öffnens der Kokille. Die Durchführung der Zuganker sowohl durch die Kokillenplatten, als auch durch die Wasserkästen ist technisch beherrschbar. The broad side walls are supported on support frames and the tie rods are through guide openings provided in these and in the broad side walls passed. There are clamping elements on their outstanding smooth ends and at the thread ends there are screw connections with the interposition of Disc spring assemblies arranged. These are supported on support frames. Through this The assembly and adjustability of the mold narrow sides are designed on the one hand simplified and on the other hand damage to the mold in the event of malfunctions avoided, for example when excessive pressure peaks occur, by adjusting Setting the broadside clamping forces against the narrow sides or through the Possibility of partially opening the mold. Implementation of the tie rods Both through the mold plates and through the water tanks is technical manageable.
Das Dokument EP 0 468 607 A1 beschreibt eine flüssigkeitsgekühlte Kokille für das Stranggießen von Metallen, insbesondere Stahl, mit einer formgebenden Wandung aus einem insbesondere metallischen Werkstoff, die an einer Stützplatte befestigt und mit Anschlüssen für eine Kühlflüssigkeit zur Kühlung der Wandung versehen ist. Um bei flüssigkeitsgekühlten, oszillierbar gelagerten Kokillen die Aufhängung der Kokillen unter Einbeziehung der Oszillationseinrichtung in der zu bewegenden Masse zu verringern, und um höhere Schwingungszahlen bei geringstmöglichem Kraftbedarf einstellen zu können, sind an der Stützplatte an der der Wandung abgekehrten Seite Federelemente, die gleichsinnig mit der Gießrichtung eine wesentlich geringere Steifigkeit gegenüber den beiden Querrichtungen aufweisen, in gleichmäßiger Verteilung einseitig befestigt. Die Federelemente erstrecken sich in einer Richtung quer zur Gießrichtung. Die gegenüberliegenden Enden der Federelemente sind an einer Tragplatte befestigt. Die Tragplatte ist mit einem ortsfesten Grundrahmen verbunden. An der Stützplatte greift eine Oszillationseinrichtung an.Document EP 0 468 607 A1 describes a liquid-cooled mold for the continuous casting of metals, especially steel, with a shaping Wall made of a particularly metallic material on a support plate attached and with connections for a coolant for cooling the wall is provided. In order for the in the case of liquid-cooled, oscillatably mounted molds Suspension of the molds with the inclusion of the oscillation device in the to reduce moving mass, and to increase the number of vibrations with the lowest possible To be able to adjust power requirements are on the support plate on the the side facing away from the spring elements, which are in the same direction as the pouring direction a much lower stiffness compared to the two transverse directions have attached on one side in an even distribution. The spring elements extend in a direction transverse to the casting direction. The opposite Ends of the spring elements are attached to a support plate. The support plate is with connected to a fixed base frame. An oscillation device engages on the support plate on.
Die bekannte Bauart erfordert, wie insbesondere aus den Fig. 1 und 2 erkennbar ist, die Anordnung einer Vielzahl einzelner vergleichsweise kleiner Federelemente, und einen ortsfesten schweren Grundrahmen, der die Kokille umspannt.The known type requires, as can be seen in particular from FIGS. 1 and 2 is the arrangement of a large number of individual comparatively small spring elements, and a fixed, heavy base frame that spans the mold.
Bei einer Änderung der Federabstimmung wird das gesamte System demontiert und nach Auswechselung einer Vielzahl einzelner Federn wieder zusammengesetzt.The entire system is dismantled when the spring adjustment is changed and reassembled after replacing a large number of individual springs.
Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Verbesserung der bekannten Bauarten dadurch herbeizuführen, daß ein Kraftschluß des Kokillensystems unmittelbar zwischen Wasserkästen und Schmalseitenträgem ohne Umweg über einen externen Grund- oder Spannrahmen hergestellt wird. Dabei soll auch die Fertigung und Montage des gesamten Kokillensystem vereinfacht wird, wobei insgesamt die schwingenden Massen wesentlich reduziert werden. Und schließlich sollen alle Bewegungen und Kräfte aus betrieblichem Wärmeeinfluß während des Gießens im System der Kokille/Wasserkästen aufgenommen werden, ohne daß maßliche Veränderungen des Strangprofils eintreten.Starting from the aforementioned prior art, the object of the invention to improve the known designs by that a frictional connection of the mold system directly between water boxes and Narrow side supports without detour via an external base or stenter frame will be produced. The manufacturing and assembly of the whole Chill mold system is simplified, the overall vibrating masses essential be reduced. And finally, all movements and forces should stop operational heat during casting in the mold / water box system be included without dimensional changes of the Enter extruded profile.
Die Lösung der Aufgabe wird bei einer Stranggießkokille der im Oberbegriff von Anspruch 1 gekennzeichneten Art mit der Erfindung dadurch erreicht, daß die Wasserkästen mit beidseitigem Überstand sowohl über die Breitseitenplatten, als auch über die Schmalseitenplatten hinaus ausgebildet sind und kraftschlüssig sowie wärmeleitend an den Breitseitenplatten anliegend in der Funktion eines Spannrahmens an ihren überstehenden Enden die Spannelemente aufnehmen.The solution to the problem is in a continuous casting mold in the preamble of Characterized claim 1 achieved with the invention in that the Water boxes with protrusion on both sides over both the broad side plates, as well are also designed beyond the narrow side plates and non-positive as well in the function of a thermally conductive on the broad side plates Take up the clamping elements at their protruding ends.
In Weiterbildung der Erfindung ist vorgesehen, daß die Verstelleinrichtung für die Schmalseitenplatten von einer Trägerplatte gehalten ist, die in Form- und Kraftschluß mit den Wasserkästen in Verbindung steht bzw. formschlüssig in die inneren Platten der Wasserkästen eingelassen ist.In a development of the invention it is provided that the adjustment device for the Narrow side plates is held by a carrier plate, which is in positive and non-positive communicates with the water boxes or interlocks with the inner ones Panels of the water boxes is embedded.
Infolge dieser Anordnung bleiben durch die Einbringung der Schmalseiten-Verstelleinrichtung in das Gießformat alle Kräfte und Verformungen aus Wärmedehnung der Kupferplatten nahezu ohne Einfluß auf das Format der Gießform. In weiterer Ausbildung der Erfindung ist vorgesehen, daß die Wasserkästen unter Kompensation aller aus dem System der Kokille nach außen gerichteten Kräfte unter Ausbildung vergleichsweise äußerst biegungs-widerstandsfähiger Kastenprofile im Zusammenwirken mit ihren endseitigen Spannelementen ein in sich geschlossenes Rahmensystem ausbilden.As a result of this arrangement, the narrow-side adjustment device remains in place all forces and deformations from thermal expansion into the casting format the copper plates almost without influence on the format of the mold. In further development of the invention provides that the water boxes under Compensation of all outward forces from the mold system with the formation of comparatively extremely bend-resistant box profiles in cooperation with their end clamping elements a self-contained Train the frame system.
Daraus resultiert als weiterer Vorteil, daß ein wärmeleitender Kontakt zwischen Wasserkästen und Breitseitenwänden der Kokille ohne mechanische Verbindungselemente wie Schrauben oder dergleichen durch form- und kraftschlüssige Anlage einander zugewandter Flächenbereiche hergestellt ist.This results in a further advantage that a thermally conductive contact between Water boxes and broad side walls of the mold without mechanical fasteners such as screws or the like through positive and non-positive Facility facing each other is produced.
Mit großem Vorteil wird durch kraftschlüssige und wärmeleitende Anlage der Wasserkästen an den Breitseitenplatten der Kokille ohne mechanische Verbindungselemente eine ungehinderte Dehnbarkeit infolge Wärmeeinfluß zwischen Kokillenplatten und Wasserkästen gewährleistet, wodurch eine Übertragung von Bewegungen oder Kräften aus betrieblichem Wärmeeinfluß während des Gießens im System der Kokille/Wasserkästen selbsttätig kompensiert werden, ohne daß maßliche Veränderungen im System erzwungen werden. Sowohl die Kokillenplatten, als auch die Wasserkästen mit ihren Seitenauflagen können sich unabhängig voneinander frei ausdehnen und vermeiden infolgedessen die Entstehung von Spannungen und dadurch verursachter unzulässiger Kräfte.A great advantage is the non-positive and heat-conducting system of the water tanks on the wide side plates of the mold without mechanical connecting elements an unimpeded extensibility due to the influence of heat between mold plates and water boxes, ensuring a transmission of movements or forces from operational heat during casting in the System of the mold / water boxes can be compensated for automatically, without dimensional System changes are enforced. Both the mold plates, as well as the water boxes with their side supports can be independent of each other expand freely and consequently avoid the development of tension and the resulting impermissible forces.
Weitere Ausgestaltungen der Stranggießkokille nach der Erfindung sind entsprechend den Unteransprüchen vorgesehen.Further configurations of the continuous casting mold according to the invention are corresponding provided the subclaims.
Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachstehenden Erläuterung eines in den Zeichnungen schematisch dargestellten Ausführungsbeispieles. Es zeigen:
- Figur 1
- eine Kokille in Draufsicht;
Figur 2- die Kokille gemäß Fig. 1 in Seitenansicht;
Figur 3- in Draufsicht eine vergrößerte Darstellung einer Halbseite der Kokille.
- Figure 1
- a mold in plan view;
- Figure 2
- the mold of Figure 1 in side view.
- Figure 3
- in plan view an enlarged view of a half side of the mold.
Die aus der Zusammenschau der Figuren 1 bis 3 ersichtliche Bauart der Stranggießkokille
nach der Erfindung umfaßt Breitseitenplatte 1 und zwischen deren Enden
mittels Klemmkraft mechanischer oder hydromechanischer Spannelemente 7,
7' mit Haftreibung einspannbare, lageverstellbare Schmalseitenplatten 2, 2' und
deren Verstelleinrichtungen 4, 4', wobei den Breitseitenplatten 1 Wasserkästen 3,
3' zugeordnet sind.The construction of the continuous casting mold apparent from the overview of FIGS. 1 to 3
according to the invention comprises broad side plate 1 and between the ends thereof
by means of clamping force of mechanical or
Die erfindungsgemäße Bauart der Kokille sieht vor, daß die Wasserkästen 3, 3'
mit beidseitigem Überstand 11, 11' sowohl über die Breitseitenplatten 1 als auch
über die Schmalseitenplatten 2, 2' hinaus ausgebildet sind und kraftschlüssig sowie
wärmeleitend an den Breitseitenplatten 1 anliegend in der Funktion eines
Spannrahmens an ihren Enden die Spannelemente 7, 7' aufnehmen.The design of the mold according to the invention provides that the
Dadurch, daß die Wasserkästen unter Übernahme der Funktion eines Spannrahmens kraft- und formschlüssig an den Kokillen-Breitseitenplatten 1 anliegen, kann ein zusätzlicher externer Spannrahmen wegfallen, wodurch nicht nur Fertigung und Montage wesentlich vereinfacht werden, sondern zugleich die schwingenden Massen erheblich verringert werden. Durch freie Dehnbarkeit der Kokille sowie der anliegenden Wasserkästen wird das Auftreten von durch Wärmeeinfluß erzwungenen Kräften und deren Übertragung auf den Hubtisch vermieden.The fact that the water boxes under the function of a tenter can be non-positively and positively on the mold broadside plates 1 an additional external stenter is eliminated, which means not only manufacturing and assembly are significantly simplified, but at the same time the vibrating Masses are significantly reduced. Through free stretchability of the mold and the adjacent water tanks will be forced by the influence of heat Forces and their transfer to the lifting table avoided.
Insbesondere werden die vorgenannten Vorteile dadurch erreicht, daß ein wärmeleitender
Kontakt zwischen Wasserkästen 3, 3' und Breitseitenwänden 1 der
Kokille ohne mechanische Verbindungselemente wie Schrauben oder dergleichen
durch form- und kraftschlüssige Anlage einander zugewandter Flächenbereiche
12, 13 hergestellt ist.In particular, the aforementioned advantages are achieved in that a thermally conductive
Contact between
Um die Entstehung und Aufrechterhaltung eines annähernd gleichmäßigen Anlagendruckes
der Flächenbereiche 12, 13 zwischen den Spannelementen 7, 7' zu
erreichen, kann vorgesehen sein, daß einer dieser Flächenbereiche 13 exakt
ebenflächig ausgebildet, und der anliegende Flächenbereich mit einer geringen
Bombierung versehen ist. About the emergence and maintenance of an almost uniform system pressure
the
Dadurch wird erreicht, daß beim Zusammenspannen dieser Flächenbereiche infolge der Einebnung dieser Bombierung Anlagen-Druckkräfte entstehen, die ohne Verwendung mechanischer Verbindungselemente einen wärmeleitenden Kontakt zwischen den zusammengespannten Flächenbereichen herstellen. Dabei kann die Bombierung im Verhältnis zur Flächenausdehnung eines Wasserkastens bspw. eine mittlere Erhöhung der Kontur zwischen 0,2 und 1 mm betragen. Damit bleibt die beim Zusammenspannen mit einem ebenen Flächenbereich entstehende innere Spannungen der bombierten Platte eines Wasserkastens im Bereich der Elastizitätsgrenze des Materials.This ensures that when these surface areas are clamped together the leveling of this crowning system pressure forces arise without Use of mechanical connecting elements to make a heat-conducting contact between the tied surface areas. The Bombing in relation to the surface area of a water tank, for example. an average increase in contour between 0.2 and 1 mm. That leaves the inner one created when clamping with a flat surface area Tensions of the cambered plate of a water tank in the area of the elastic limit of the material.
Eine weitere zweckmäßige Ausgestaltung sieht vor, daß die Wasserkästen 3, 3'
an ihren Enden Ausnehmungen 5, 5' aufweisen, die zur Aufnahme der Spannelemente
7, 7' ausgebildet sind.A further expedient embodiment provides that the
Weiterhin ist vorgesehen, daß die Wasserkästen 3, 3' die Ausnehmungen 5, 5'
nach außen begrenzende Seitenauflagen 10, 10' besitzen, die mit Anschlüssen 8,
8' für Kühlwasser ausgerüstet sind.It is also provided that the
Wie weiterhin aus der Zusammenschau der Figuren 1 und 3 ersichtlich ist, bilden
die Wasserkästen 3, 3' unter Kompensation aller aus dem System der Kokille
nach außen gerichteten Kräfte sowie Ausbildung von vergleichsweise äußerst biegungswiderstandsfähigen
Kastenprofilen 9, 9' im Zusammenwirken mit den mit
ihren überstehenden Enden verbundenen Spannelementen 7, 7' ein in sich geschlossenes
Rahmensystem aus.As can also be seen from the overview of FIGS. 1 and 3, form
the
Erfindungswesentlich ist die Form und Bauart der Wasserkästen 3, 3', in der vertikalen
Projektion gesehen, mit endseitigen Verjüngungen 14, 14' ihres Kastenprofils
9, 9' und verstärkten Außenplatten 15, 15' im mittleren Bereich derjenigen eines
Trägers gleicher Biegebeanspruchung mit einer annähernd gleichmäßig verteilten
Last bei Auflage auf zwei endseitigen Stützen angenähert. Hierdurch wird
ein extrem hohes Widerstandsmoment gegen Biegebeanspruchung der Wasserkästen
erreicht, so daß diese ohne Schwächung infolge einer Durchbiegung die
von den Spannelementen 7, 7' aufgebrachten Klemmkräfte auf die Kokillen-Breitseitenplatten
1 zu übertragen in der Lage sind.Essential to the invention is the shape and design of the
Die Wasserkästen 3, 3' sind zur indirekten Krafteinleitung der von den Spannelementen
7, 7' über die Breitseitenplatten 1 der Kokille gegen die Schmalseitenwände
2, 2' wirkbaren Klemmkräfte mit an jedem Ende zwei untereinander angeordneten
Spannelementen 7, 7' ausgebildet.The
Weiterhin können fakultativ zur Optimierung des Wärmeüberganges von den
Breitseitenplatten 1 der Kokille auf die anliegenden Plattenbereiche 12, 17 der
Wasserkästen 3, 3' zwischen diese Edelmetallfolien, bevorzugt Silberfolien, eingelegt
sein.Furthermore, optional to optimize the heat transfer from the
Broad side plates 1 of the mold on the
Bei einer unplanen Raumgestaltung der Kokillen-Breitseitenplatten 1, bspw. zur
Ausbildung eines Einlauftrichters etc. sind die an der Kokille anliegenden Kupferplattenbereiche
12, 17 der Wasserkästen 3, 3' mit kongruenter Raumgestaltung
abstandslos an die Kokillenplatten 1 anschmiegbar ausgebildet.In the case of an unplanned spatial design of the mold broadside plates 1, for example for
Forming an inlet funnel, etc. are the copper plate areas adjacent to the
Die Erfindung verbessert bekannte Bauarten von Stranggießkokillen u.a. dahingehend, daß Fertigung und Montage vereinfacht werden und zugleich eine Verringerung der schwingenden Massen erreicht wird. Weil darüber hinaus infolge freier Dehnbarkeit zwischen Kokillenplatten und Wasserkästen alle Bewegungen und Kräfte aus betrieblichem Wärmeeinfluß während des Gießens im System der KokillelWasserkästen aufgenommen werden, können Verschiebungen und Verformungen zwischen Breitseiten und Schmalseiten der Kokille vermieden werden. The invention improves known types of continuous casting molds, among others. to the effect that manufacturing and assembly are simplified and at the same time a reduction of the vibrating masses is reached. Because moreover as a result of free Elasticity between mold plates and water boxes all movements and Forces from operational heat during casting in the system of the mold water boxes shifts and deformations can be included be avoided between broad sides and narrow sides of the mold.
- 11
- BreitseitenplatteBroadside plate
- 22
- SchmalseitenplatteNarrow side plate
- 33
- Wasserkastencistern
- 44
- Verstelleinrichtungadjustment
- 55
- Ausnehmungrecess
- 6 76 7
- Spannelementclamping element
- 88th
- Anschlüsse /KühlwasserConnections / cooling water
- 99
- Kastenprofilbox section
- 1010
- Seitenauflagepage edition
- 1111
- ÜberstandGot over
- 1212
- Flächenbereicharea
- 1313
- Flächenbereicharea
- 1414
- Verjüngungrejuvenation
- 1515
- Außenplatteouter plate
- 16 1716 17
- Flächenbereicharea
- 1818
- Trägerplatte oder VerstelleinrichtungCarrier plate or adjustment device
Claims (8)
- Continuous casting mould for continuous casting of slabs of steel, particularly of thin slabs, comprising wide side plates (1), and narrow side plates (2, 2') and narrow side plate holders adjustable in position and able to be clamped between the ends of the wide side plates by means of mechanical or hydromechanical tightening elements (7), wherein water tanks (3, 3') are associated with the wide side plates (1), characterised in that the water tanks (3, 3') are constructed with an overhang (11, 11') at both ends not only over the wide side plates (1), but also over the narrow side plates (2, 2') and receive in force-1locking and thermally conductive manner the tightening elements (7, 7') at their overhanging ends to bear against the wide side plates (1) in the function of a clamping frame.
- Continuous casting mould according to claim 1, characterised in that the adjusting device (4, 4') for the narrow side plates (2, 2') is retained by a carrier plate (18) which is disposed in shape-locking and force-locking connection with the water tanks (3, 3') or is let in shape-locking manner into the inner plates of the water tanks (3, 3').
- Continuous casting mould according to claim 1 or 2, characterised in that the water tanks (3, 3') form a frame system, which is closed in itself, with compensation of all forces, which are directed outwardly from the system of the mould, while forming comparatively highly bending-resistant box profiles (9, 9') in co-operation with their tightening elements (7, 7') at the ends.
- Continuous casting mould according to one or more of claims 1 to 3, characterised in that through shape-locking connection of mutually facing surface regions (12, 13) of the water tanks (3, 3') and the mould wide side walls (1) a thermally conductive contact exists therebetween.
- Continuous casting mould according to one or more of claims 1 to 4, characterised in that the water tanks (3, 3') have at the ends thereof recesses (5, 5') which are formed for reception of the tightening elements (7, 7').
- Continuous casting mould according to one or more of claims 1 to 5, characterised in that the water tanks (3, 3') have side supports (10, 10') which outwardly bound the recesses (5, 5') and which are equipped with connections (8, 8') for cooling water.
- Continuous casting mould according to one or more of claims 1 to 6, characterised in that the water tanks (3, 3') are equipped with two tightening elements (7, 7') arranged one under the other for introducing clamping forces via the wide side plates (1) against the narrow side plates (2, 2') at each overhanging end (11, 11').
- Continuous casting mould according to one or more of claims 1 to 7, characterised in that the water tanks (3, 3') as seen in vertical projection are constructed as box-shaped hollow profiles (9, 9') with outer plates widened in the centre region.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924866 | 1999-05-29 | ||
| DE19924866A DE19924866A1 (en) | 1999-05-29 | 1999-05-29 | Continuous casting mold for the continuous casting of preferably thin steel slabs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1057556A1 EP1057556A1 (en) | 2000-12-06 |
| EP1057556B1 true EP1057556B1 (en) | 2004-09-29 |
Family
ID=7909743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00109683A Expired - Lifetime EP1057556B1 (en) | 1999-05-29 | 2000-05-06 | Continuous casting mould for continuous casting, preferably of thin steel slabs |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1057556B1 (en) |
| AT (1) | ATE277703T1 (en) |
| DE (2) | DE19924866A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012013450A1 (en) | 2010-07-28 | 2012-02-02 | Sms Siemag Ag | Continuous casting mold |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008057888A1 (en) | 2008-09-23 | 2010-03-25 | Sms Siemag Aktiengesellschaft | continuous casting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4117052A1 (en) * | 1990-07-23 | 1992-11-26 | Mannesmann Ag | LIQUID-CHILLED CHOCOLATE FOR METAL CONTINUOUS |
| WO1992002324A1 (en) * | 1990-08-09 | 1992-02-20 | Voest-Alpine International Corp. | An improved method for controlling the clamping forces exerted on a continuous casting mold |
| JPH05245590A (en) * | 1992-03-04 | 1993-09-24 | Sumitomo Heavy Ind Ltd | Cast slab thickness variable mold for continuous casting |
| 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 |
| DE19753959A1 (en) * | 1997-12-05 | 1999-06-10 | Schloemann Siemag Ag | Chill with broadside and narrow side adjustment |
-
1999
- 1999-05-29 DE DE19924866A patent/DE19924866A1/en not_active Withdrawn
-
2000
- 2000-05-06 EP EP00109683A patent/EP1057556B1/en not_active Expired - Lifetime
- 2000-05-06 DE DE50007959T patent/DE50007959D1/en not_active Expired - Lifetime
- 2000-05-06 AT AT00109683T patent/ATE277703T1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19924866A1 (en) | 2000-11-30 |
| ATE277703T1 (en) | 2004-10-15 |
| DE50007959D1 (en) | 2004-11-04 |
| EP1057556A1 (en) | 2000-12-06 |
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