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EP1286796B1 - Strand guide for a continuous casting installation - Google Patents

Strand guide for a continuous casting installation Download PDF

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Publication number
EP1286796B1
EP1286796B1 EP01940010A EP01940010A EP1286796B1 EP 1286796 B1 EP1286796 B1 EP 1286796B1 EP 01940010 A EP01940010 A EP 01940010A EP 01940010 A EP01940010 A EP 01940010A EP 1286796 B1 EP1286796 B1 EP 1286796B1
Authority
EP
European Patent Office
Prior art keywords
supporting
strand guide
longitudinal beams
supporting frames
guide according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01940010A
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German (de)
French (fr)
Other versions
EP1286796A1 (en
Inventor
Werner Scheurecker
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP1286796A1 publication Critical patent/EP1286796A1/en
Application granted granted Critical
Publication of EP1286796B1 publication Critical patent/EP1286796B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal

Definitions

  • the invention relates to a strand guide for a continuous casting, with two oppositely arranged, a strand on opposite sides supporting, with support elements, such as support rollers, equipped, straight and / or curved support tracks, wherein the support elements each one of the support tracks in pairs or more are arranged on support frames, which are supported on several supported on a foundation foundation frame, which foundation frame two laterally of a first lower or bow outer support track lying and extending in the longitudinal direction of this first support track first side rail and two more, laterally opposite the first support track second Having the upper or inner bow support track and extending in the longitudinal direction of the second support track extending second side rail.
  • support elements such as support rollers, equipped, straight and / or curved support tracks
  • a strand guide of this type is known for example from DE 198 11 651 A1.
  • strand guide rollers are each combined to form a functional unit that is connected in a segment to form a strand guiding roller of the support webs lying opposite one another.
  • a plurality of segments in the longitudinal direction of the strand guide are fastened one behind the other to foundation frame supported on the foundation.
  • the foundation frame is formed by laterally of the segments lying upper and lower side members, which are each attached to the foundation.
  • Each segment has laterally arranged, perpendicular to the strand guide extending support carrier on which the strand guide rollers supporting frame are mounted on plungers for setting a predetermined strand thickness.
  • the segments can only be considered as a whole, i. Remove the frame supporting the lower or arched support rollers and the frame supporting the upper and inner arch support rollers. In addition, a lateral accessibility to the strand guide due to the foundation frame is not given.
  • the invention aims to avoid these disadvantages and difficulties and has set itself the task of developing a strand guide of the type described above with the advantage of extending in the longitudinal direction of the strand guide side members - which allow a simple and accurate adjustment of the strand supporting support elements - to the effect that in the event of a defect in the parts which cause the main maintenance work, namely the support elements supporting the strand, such as support rollers, only these parts have to be replaced. Furthermore, full access to the strand guide should be provided from the side in spite of the first and second longitudinal members extending in the longitudinal direction of the strand guide.
  • the design of the strand guide should be as light as possible and a combination of the advantages of a so-called segment design (known from AT 335 650 B) with the advantages of integrally formed strand guides (known from AT 343 303 B) allow, with disadvantages such as cumbersome adjustment and poor accessibility and difficult to be performed repairs should be avoided.
  • the second longitudinal members are rigidly connected to the first longitudinal members via spaced connecting means and are supported on the foundation via the first longitudinal members, results in a particularly lightweight construction of the foundation frame with excellent lateral accessibility.
  • the support frame of the first support track and the second support track are connected to carriers, which in turn on the longitudinal beams supported by the foundation frame.
  • the inventively provided connecting means are used only for connecting the first and second side members, u.zw. without contact with the support frame, and it is the support frame on which the support supporting the strand support elements, such as the support rollers, are supported independently of these connecting means in each case on the associated side members and not, as in the known system connected by the carrier.
  • the construction of the invention allows easy pre-assembly of the system in the workshop, since only the first side members are supported on the foundation and the other construction parts are constructed on these side rails.
  • the support frame of the first support track are connected to the first longitudinal members via adjusting means, u.zw. independent of the connecting means of the longitudinal members.
  • the connecting means of the longitudinal members are designed as tie rods, whereby these connecting means can be made particularly slim and the lateral accessibility is optimized for strand guidance.
  • a particularly simple removal and installation of the support frame at least one of the support tracks is given by the fact that the first and / or second longitudinal members with approximately perpendicular to its longitudinal extent extending guideways for receiving sliding elements, which are provided on support frame of the first and second support track , are provided.
  • the guideways are preferably designed as modules which can be installed in the side members and can be fixed relative to these side members, whereby a simple processing of these guideways is provided, independently of the second side members having a very large longitudinal extent.
  • a little effort requiring and accurate guidance of the support frame resulting embodiment is characterized in that support frame of the first and / or second support track via bending springs with the first and second side members in conjunction, with the bending springs extend with their main direction in the longitudinal direction of the side members ,
  • support frames of the first and / or second support track are connected via links to the first and second longitudinal members.
  • the support frame of the first and / or second Supporting track on the first and second longitudinal members by means of pressure medium cylinder, in particular hydraulic cylinder, supported.
  • An easy-to-manufacture construction is characterized in that the support frame of the first and / or second support track are supported by a stool on the pressure medium cylinders, advantageously lead media supply lines to the stool and open on this in connections of the support frame.
  • the pressure medium cylinders in the casting operation are expediently acted upon in the direction towards the respective opposite longitudinal members and between the support frames of the first and / or second support web and the first and second side members casting thickness inserts for the purpose of fixing the Location of the support frame relative to the longitudinal members provided.
  • G viterkenbeilagen between the first longitudinal beams and the support frame of the second support track arranged support rods and / or provided between the second longitudinal beams and the support frame of the first support track support rods.
  • the support frames of the first and / or second support web are supported on the first and second side members via four pressure medium cylinders respectively arranged on the corner regions appearing in the plan view of the support frame.
  • first and second support frame displacement sensors provided, preferably arranged on the side of the support frame and oppositely directed extensions.
  • the hydraulic cylinders provided between the first and / or second longitudinal carriers and the support frames of the first and / or second support track are preferably equipped with a control for setting a predetermined position of the support frames relative to one another and / or with respect to the longitudinal supports.
  • the strand guide according to the invention can be provided in a simple manner cooling chamber walls directly to the support frame of the first and second support track, which manages to accommodate all delicate components, such as displacement sensors, hydraulic cylinders, G confusedickenbeilagen etc., unaffected by the coolant for the strand, i. keep dry.
  • a preferred embodiment is characterized in that displacement sensors are provided both between the first longitudinal members and the support frame of the first support track and between the support frame of the first and second support track.
  • An advantageous embodiment is characterized in that the support frame of the first and / or second support track are provided with the associated side rail outside overlapping side extensions, with which the support frame on the associated side rails directly or via adjusting means or in the case of providing a stool supported on this are.
  • the longitudinal members are integrally formed with the connecting means.
  • a further advantageous embodiment is characterized in that between adjacent support frame a separate module for receiving at least one pair of rollers, formed by oppositely arranged rollers, is provided.
  • the module has two cross members, wherein one of the cross member is supported on the first side member and the other cross member on the second side member and at each of the cross members is supported at least one driven roller, either directly or indirectly.
  • a driven roller on the cross member via an adjusting device, such as a pressure medium cylinder, supported.
  • the relative position of adjacent support frame is measured, as by the displacement sensors or by a G manspaltmeß réelle or by pressure evaluations of the pressures of the actuating means during a trial operation and / or during the casting operation, and is formed upon detection of deviations of the G fauxspaltbahn of the Support frame corrected the desired position of the support frame by means of the adjusting means.
  • strain measurements can be advantageously determine the fürerstarrungsige the strand.
  • FIG. 1 illustrates a side view of a strand guide according to the invention according to a first embodiment.
  • Fig. 2 shows a detail of Fig. 1 on an enlarged scale, partially in section
  • Fig. 3 is a sectional view taken along the line III-III of Fig. 2.
  • Figures 4, 6, 8, 10 and 12 respectively show side views of FIG 2 for different embodiments
  • FIGS. 5, 7, 9, 11 and 13 are sectional views according to FIG. 3 for the embodiments shown in FIGS. 4 to 12, and the like. between the lines V-V, VII-VII, IX-IX, XI-XI and XIII-XIII.
  • FIG. 14 shows a detail of a further embodiment in a partially sectioned side view according to FIG. 2.
  • FIG. 15 shows in the illustration of FIG. 6 a modified embodiment.
  • Fig. 1 shows the strand guide in the straight area, but this may also extend in the bow area of a continuous casting.
  • the support rollers 6 are each rotatably mounted to a plurality of support frames 7 and 8.
  • the respectively the bow outer or lower support rollers 6 receiving support frame 7 (hereinafter referred to as “first” support frame 7) are independent of the upper or inner bow support rollers 6 supporting support frame 8, hereinafter referred to as “second” support frame 8 denotes, on the side of the support frame 7 arranged first longitudinal members 9, which extend in the longitudinal direction 10 of the strand guide, u.zw. over several support frame 7 away, attached via brackets 11.
  • the upper and second support frames 8 are also attached to extending in the longitudinal extent 10 of the strand guide second side rails 12, which extend approximately equidistant from the first side rails 9.
  • the second longitudinal members 12 are supported on the first longitudinal members 9, which are mounted on the foundation 13, via connecting means 14, which are advantageously designed as tie rods - for receiving the ferrostatic pressure - are formed.
  • These tie rods 14 may be designed as flexural rods, which allow different longitudinal expansion of the first longitudinal member 9 with respect to the second longitudinal members 12 compensate in a very simple manner.
  • the longitudinal members 9, 12 may be screwed or welded to the connecting means 14; However, it is also possible to make the one of a lower and upper side members 9, 12 and the connecting means 14 formed, acting as a disk construction in one piece.
  • the lower side members 9 may also be part of a foundation construction.
  • Second support frame 8 Essential for the easy removal and installation of the second support frame 8 is that these are supported from above on the second side members 12, for which purpose the second support frame 8 with the second side members 12 superior side extensions 8 'are provided, on which either hydraulic cylinder sixteenth attack directly or rely on stool 8 ", which in turn are supported on hydraulic cylinders 16.
  • first and second side members 9, 12 are connected via an element 15 for mutual fixation of their position.
  • This element 15 receives between the first and second longitudinal members acting shear forces and is formed in the illustrated embodiment as directed approximately 45 ° support.
  • the first and the second longitudinal members 9 and 12 form with the connecting means 14 each supported on the foundation 13 foundation frame, between which a Zunderkanal extends below, which also serves for the discharge of the cooling water, which is used for cooling the strand 3.
  • the upper and second support frames 8 are movable via four hydraulic cylinders 16 on the second longitudinal members 12 supported, wherein the arrangement of the four hydraulic cylinders 16 is made such that when viewed from above they are at the vertices of the approximately rectangular in plan view of the second support frame 8.
  • the support of the hydraulic cylinder 16 and the piston rods 17 with the second longitudinal beams 12 and the support frame 8 or stools 8 "via spherical plain bearings, so that it is possible to set a wedge-shaped casting gap.
  • the upper and second support frames 8 are guided approximately perpendicular to the longitudinal extension 10 of the strand guide guideways 18 by means of sliding elements 19, such as sliding blocks, wherein shown in FIG. 2, the guideways 18 to the second Side members and the sliding blocks 19 are arranged on the stools 8 '';
  • the guideways 18 could also be provided on the support frame 8.
  • the guideways 18 are provided according to a preferred embodiment of the intermediate frame 12 '.
  • the support frame 7 and 8 can be easily attached to the support frame 7 and 8dehuntabdeckungen 20 form a cooling chamber, so that only the support rollers are inside the same, whereas the hydraulic cylinder 16 and the side members 9, 12 outside the same lie.
  • Thedeschabdeckungen 20 extend between the support frame 7 and 8, u.zw. left and right of the outside support cheeks 21 of the lower and upper support frame 7 and 8th
  • a first media supply 22 for the lower or first support frame 7 leads over the lower side members 9 to these, and a second media supply 23 for the supply of cooling water or pressure medium to the hydraulic cylinders 16 via the stool 8 "to the upper second support frame eighth wherein the mounted on the support frame 8 Lines when placing the support frame 8 on the stool 8 "are automatically connected to the lines 23, for example by so-called manifold connections.
  • a displacement measurement is carried out via the hydraulic cylinders 16, and thus a measurement of the casting gap directly in the cylinders, i.
  • This displacement measurement is integrated in the hydraulic cylinders 16.
  • the casting gap can be adjusted with G confusedickenbeilagen 25, which are provided between the upper and second support frame 8 and the second longitudinal members 12.
  • bending springs 26 are used, which extend with their main direction in the longitudinal direction of the second longitudinal members. These bending springs 26 are formed as leaf spring packets. They are connected on the one hand to the second longitudinal members 12 and on the other hand to the second support frame 8.
  • the hydraulic cylinders 16 are attached to the second support frame 8 and have in this embodiment, piston rods 17 which are designed as bending rods which pass through the second longitudinal members 12 with play and the ends of which are rigidly fixed to the lower and first longitudinal members 9.
  • piston rods 17 which are designed as bending rods which pass through the second longitudinal members 12 with play and the ends of which are rigidly fixed to the lower and first longitudinal members 9.
  • displacement sensors 27 are provided laterally of the strand guide tracks 1 and 2, which are provided on projections of the support frames 7 and 8 and directed against one another.
  • the G hassledickenbeilagen 25 may be adjustable in height for the purpose of setting different G intelligentken or exchanged for other G intelligentkenbeilagen 25 with different height.
  • FIGs. 12 and 13 An advantageous embodiment is further shown in Figs. 12 and 13, according to which not only the second support frame 8 are supported on the second longitudinal members 12 via hydraulic cylinders 16, but also the first support frame 7 on the first side members 9.
  • the first side members 9 arranged on support columns 30 at a distance 31 from the foundation 13 and supported relative to this.
  • All of the above-described embodiments of the bearing or guiding of the second support segments 8 on the second longitudinal members 12 can also be used for supporting and guiding the first support frame 7 on the first longitudinal members 9, so that a substantially symmetrical to the strand guide means plane, illustrated by the line 10, formed strand guide is formed.
  • To adjust the G fauxspaltes displacement sensors 27 between the first and second support frame 7 and 8 and in addition between the first support frame 7 and the first side rails 9 are provided in this embodiment.
  • This variant has the advantage that both the first and the second support frame 7 and 8 can be changed independently and independently of the longitudinal members 9 and 12 and the adjusting mechanisms.
  • the hydraulic cylinders 16 are supported on a module 32 having the guideways 18 for the second support frame 8, which module 32 is inserted into the second side members 12 and attached to them with a quick-release connection.
  • the Quick release connection is in this case formed by half-rings 33, which are equipped with wedge surfaces which engage counter-wedge surfaces of the module 32.
  • the module 32 is formed by the intermediate frame 12 ', the pressure medium cylinders 16 and the stool 8 ".
  • the construction according to the invention has numerous advantages over the known constructions, such as the simple possibility of changing the support frame 8 and according to FIGS. 12 and 13 and the support frame 7 without major alterations, excellent accessibility from the side, a simpledehuntkapselung, and further offers the possibility to perform an automatic casting thickness adjustment with position measurement.
  • Another advantage is the fact that when changing a support frame 7 or 8, the hydraulic and electrical systems do not have to be decoupled, since when changing a support frame 7 or 8, the hydraulic cylinder 16 and possibly Wegmeßimplantation 27 can remain in the system.
  • Fig. 15 shows an embodiment of a strand guide analogous to the representation of Fig. 6, but in contrast to the Au Installationsform of FIG. 6 between two adjacent formed by the support frame 7 and 8 elements independent of these support frame 7 and 8 module 34 for receiving a pair of rollers driven rollers 35 is installed.
  • This module 34 is formed by a lower cross member 36 and an upper cross member 37, the lower cross member 36 at the lower, i. first side member 9 and upper cross member 37 on the upper side member, i. are attached to the second longitudinal member 12.
  • the upper driven roller 35 of the pair of rollers can be raised and lowered by means of pressure medium cylinder 38 to be employed to different strand formats or to be pressed against the surface of the strand can.
  • the advantage of this embodiment is the fact that a change of the support frame 7 and 8 can be done independently of the driven rollers 35, whereby such a change is less time consuming, especially since driven rollers require a high switching time expenditure u.z. because of the drive shafts to be decoupled.
  • Such decoupling of the propeller shafts according to this embodiment must be done only when a driven roller itself must be replaced and not for a change of non-driven rollers.
  • Fig. 15 further shows force measuring devices 39, e.g. DehnmeßstMail, to the piston 17 of the hydraulic cylinder 16
  • force measuring devices 39 e.g. DehnmeßstMail

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  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
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Description

Die Erfindung betrifft eine Strangführung für eine Stranggießanlage, mit zwei einander gegenüberliegend angeordneten, einen Strang an einander gegenüberliegenden Seiten stützenden, mit Stützelementen, wie Stützrollen, ausgestatteten, geraden und/oder gebogenen Stützbahnen, wobei die Stützelemente jeweils einer der Stützbahnen zu zweit oder zu mehreren an Stützrahmen angeordnet sind, die zu mehreren an einem am Fundament abgestützten Fundamentrahmen abgestützt sind, welcher Fundamentrahmen zwei seitlich einer ersten unteren bzw. bogenäußeren Stützbahn liegende und sich in Längsrichtung dieser ersten Stützbahn erstreckende erste Längsträger und zwei weitere, seitlich der der ersten Stützbahn gegenüberliegenden zweiten oberen bzw. bogeninneren Stützbahn liegende und sich in Längsrichtung der zweiten Stützbahn erstreckende zweite Längsträger aufweist.The invention relates to a strand guide for a continuous casting, with two oppositely arranged, a strand on opposite sides supporting, with support elements, such as support rollers, equipped, straight and / or curved support tracks, wherein the support elements each one of the support tracks in pairs or more are arranged on support frames, which are supported on several supported on a foundation foundation frame, which foundation frame two laterally of a first lower or bow outer support track lying and extending in the longitudinal direction of this first support track first side rail and two more, laterally opposite the first support track second Having the upper or inner bow support track and extending in the longitudinal direction of the second support track extending second side rail.

Eine Strangführung dieser Art ist beispielsweise aus der DE 198 11 651 A1 bekannt. Hierbei sind Strangführungsrollen jeweils zu mehreren in einem Segment zu einer Strangführungsrollen der einander gegenüberliegenden Stützbahnen tragenden Funktionseinheit zusammengefaßt. Hierbei sind mehrere Segmente in Längsrichtung der Strangführung hintereinander an am Fundament abgestützten Fundamentrahmen befestigt. Der Fundamentrahmen ist von seitlich der Segmente liegenden oberen und unteren Längsträgern, die jeweils am Fundament befestigt sind, gebildet. Jedes Segment weist seitlich angeordnete, sich senkrecht zur Strangführung erstreckende Stützträger auf, an denen die Strangführungsrollen tragende Rahmen über Plunger zur Einstellung einer vorbestimmten Strangdicke gelagert sind. Bei dieser Strangführung lassen sich die Segmente nur als Gesamtheit, d.h. mit den die unteren bzw. bogenäußeren Stützrollen und den die oberen und bogeninneren Stützrollen tragenden Rahmen ausbauen. Zudem ist eine seitliche Zugänglichkeit zur Strangführung infolge des Fundamentrahmens nicht gegeben.A strand guide of this type is known for example from DE 198 11 651 A1. In this case, strand guide rollers are each combined to form a functional unit that is connected in a segment to form a strand guiding roller of the support webs lying opposite one another. In this case, a plurality of segments in the longitudinal direction of the strand guide are fastened one behind the other to foundation frame supported on the foundation. The foundation frame is formed by laterally of the segments lying upper and lower side members, which are each attached to the foundation. Each segment has laterally arranged, perpendicular to the strand guide extending support carrier on which the strand guide rollers supporting frame are mounted on plungers for setting a predetermined strand thickness. In this strand guide, the segments can only be considered as a whole, i. Remove the frame supporting the lower or arched support rollers and the frame supporting the upper and inner arch support rollers. In addition, a lateral accessibility to the strand guide due to the foundation frame is not given.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Strangführung der eingangs beschriebenen Art mit dem Vorteil der sich in Längsrichtung der Strangführung erstreckenden Längsträger - die eine einfache und genaue Justierung der den Strang stützenden Stützelemente zulassen - dahingehend weiterzuentwickeln, daß bei einem Defekt der die hauptsächlichen Instandhaltungsarbeiten verursachenden Teile, nämlich der den Strang stützenden Stützelemente, wie Stützrollen, nur diese Teile ausgewechselt werden müssen. Weiters soll eine volle Zugänglichkeit an die Strangführung von der Seite her trotz der sich in Längrichtung der Strangführung erstreckenden ersten und zweiten Längsträger gegeben sein. Die Konstruktion der Strangführung soll möglichst leicht sein und eine Kombination der Vorteile einer sogenannten Segmentbauweise (bekannt aus AT 335 650 B) mit den Vorteilen einstückig ausgebildeter Strangführungen (bekannt aus AT 343 303 B) ermöglichen, wobei Nachteile, wie umständliche Justierung und schlechte Zugänglichkeit und schwierig durchzuführende Reparaturen, vermieden sein sollen.The invention aims to avoid these disadvantages and difficulties and has set itself the task of developing a strand guide of the type described above with the advantage of extending in the longitudinal direction of the strand guide side members - which allow a simple and accurate adjustment of the strand supporting support elements - to the effect that in the event of a defect in the parts which cause the main maintenance work, namely the support elements supporting the strand, such as support rollers, only these parts have to be replaced. Furthermore, full access to the strand guide should be provided from the side in spite of the first and second longitudinal members extending in the longitudinal direction of the strand guide. The design of the strand guide should be as light as possible and a combination of the advantages of a so-called segment design (known from AT 335 650 B) with the advantages of integrally formed strand guides (known from AT 343 303 B) allow, with disadvantages such as cumbersome adjustment and poor accessibility and difficult to be performed repairs should be avoided.

Diese Aufgabe wird bei einer Strangführung der eingangs beschriebenen Art dadurch gelöst,

  • daß die zweiten Längsträger jeweils mit einem an derselben Seite der Stützbahnen liegenden ersten Längsträger über im Abstand angeordnete Verbindungsmittel starr verbunden und über die ersten Längsträger am Fundament abgestützt sind,
  • daß die Stützrahmen der ersten Stützbahn mit den ersten Längsträgern unabhängig von den Verbindungsmitteln der Längsträger, und die Stützrahmen der zweiten Stützbahn mit den ersten oder zweiten Längsträgern über Stellmittel verbunden sind, u.zw. ebenfalls unabhängig von den Verbindungsmitteln der Längsträger, wobei die Stützrahmen der zweiten Stützbahn unabhängig von den Stützrahmen der ersten Stützbahn nach oben und/oder zum Bogeninneren von den zweiten Längsträgern entfernbar sind.
This object is achieved in a strand guide of the type described above,
  • the second longitudinal members are each rigidly connected to a first longitudinal member lying on the same side of the support webs via spaced connection means and are supported on the foundation via the first longitudinal members,
  • in that the support frames of the first support track are connected to the first longitudinal members independently of the connecting means of the side members, and the support frames of the second support track are connected to the first or second longitudinal members via adjusting means, u.zw. also independently of the connecting means of the longitudinal members, wherein the support frame of the second support track are independent of the support frame of the first support track up and / or to the bow interior of the second side members removable.

Dadurch, daß die zweiten Längsträger an den ersten Längsträgern über im Abstand angeordnete Verbindungsmittel starr verbunden sind und über die ersten Längsträger am Fundament abgestützt sind, ergibt sich eine besonders leichte Bauweise des Fundamentrahmens mit ausgezeichneter seitlicher Zugänglichkeit. Im Gegensatz hierzu sind gemäß der in der DE 198 11 651 A1 beschriebenen Anlage, bei der sowohl die ersten Längsträger als auch die zweiten Längsträger am Fundament abgestützt sind, die Stützrahmen der ersten Stützbahn und der zweiten Stützbahn mit Trägern verbunden, die ihrerseits an den Längsträgern des Fundamentrahmens abgestützt sind. Demgegenüber dienen die erfindungsgemäß vorgesehenen Verbindungsmittel nur zum Verbinden der ersten und der zweiten Längsträger, u.zw. ohne Kontakt zu den Stützrahmen, und es sind die Stützrahmen, an denen die den Strang stützenden Stützelemente, wie die Stützrollen, gelagert sind, unabhängig von diesen Verbindungsmitteln jeweils an den zugehörigen Längsträgern abgestützt und nicht, wie bei der bekannten Anlage durch Träger verbunden.The fact that the second longitudinal members are rigidly connected to the first longitudinal members via spaced connecting means and are supported on the foundation via the first longitudinal members, results in a particularly lightweight construction of the foundation frame with excellent lateral accessibility. In contrast, according to the system described in DE 198 11 651 A1, in which both the first longitudinal beams and the second longitudinal beams are supported on the foundation, the support frame of the first support track and the second support track are connected to carriers, which in turn on the longitudinal beams supported by the foundation frame. In contrast, the inventively provided connecting means are used only for connecting the first and second side members, u.zw. without contact with the support frame, and it is the support frame on which the support supporting the strand support elements, such as the support rollers, are supported independently of these connecting means in each case on the associated side members and not, as in the known system connected by the carrier.

Die erfindungsgemäße Konstruktion ermöglicht eine einfache Vormontage der Anlage in der Werkstätte, da nur die ersten Längsträger am Fundament abgestützt sind und die übrigen Konstruktionsteile auf diesen Längsträgern aufgebaut sind.The construction of the invention allows easy pre-assembly of the system in the workshop, since only the first side members are supported on the foundation and the other construction parts are constructed on these side rails.

Zweckmäßig sind die Stützrahmen der ersten Stützbahn mit den ersten Längsträgern über Stellmittel verbunden, u.zw. unabhängig von den Verbindungsmitteln der Längsträger.Suitably, the support frame of the first support track are connected to the first longitudinal members via adjusting means, u.zw. independent of the connecting means of the longitudinal members.

Vorzugsweise sind die Verbindungsmittel der Längsträger als Zuganker ausgebildet, wodurch diese Verbindungsmittel besonders schlank gestaltet werden können und die seitliche Zugänglichkeit zur Strangführung optimiert ist.Preferably, the connecting means of the longitudinal members are designed as tie rods, whereby these connecting means can be made particularly slim and the lateral accessibility is optimized for strand guidance.

Vorzugsweise sind die Zuganker als Biegestäbe ausgebildet, wobei die zweiten Längsträger gegenüber den ersten Längsträgern sich jedoch lediglich in Längsrichtung der Strangführung

  • zwecks Ausgleichs von unterschiedlicher Dehnung der ersten und der zweiten Längsträger
  • bewegen können. In einer Richtung horizontal und senkrecht zur Längsrichtung der Strangführung sind die Biegestäbe jedoch biegesteif gestaltet. Bei einer solchen Ausführungsform sind die ersten und die zweiten Längsträger an einer Stelle ihrer Längserstreckung über ein Schubkräfte, die zwischen den Längsträgern wirken, aufnehmendes Element gegeneinander gesichert.
Preferably, the tie rods are designed as bending rods, wherein the second longitudinal members relative to the first longitudinal members but only in the longitudinal direction of the strand guide
  • to compensate for differential strain of the first and second side members
  • can move. In a direction horizontal and perpendicular to the longitudinal direction of the strand guide, however, the bending rods are designed rigid. In such an embodiment, the first and second side members are secured against each other at one location of their longitudinal extent by a thrust force acting between the side members.

Eine besonders einfache Aus- und Einbaubarkeit der Stützrahmen mindestens einer der Stützbahnen ist dadurch gegeben, daß die ersten und/oder zweiten Längsträger mit sich etwa senkrecht zu ihrer Längserstreckung erstreckenden Führungsbahnen zur Aufnahme von Gleitelementen, die an Stützrahmen der ersten bzw. zweiten Stützbahn vorgesehen sind, versehen sind.A particularly simple removal and installation of the support frame at least one of the support tracks is given by the fact that the first and / or second longitudinal members with approximately perpendicular to its longitudinal extent extending guideways for receiving sliding elements, which are provided on support frame of the first and second support track , are provided.

Hierbei sind vorzugsweise die Führungsbahnen als in die Längsträger einbaubare und gegenüber diesen Längsträgern fixierbare Module ausgebildet, wodurch eine einfache Bearbeitung dieser Führungsbahnen, unabhängig von den eine sehr große Längserstreckung aufweisenden zweiten Längsträgern, gegeben ist.In this case, the guideways are preferably designed as modules which can be installed in the side members and can be fixed relative to these side members, whereby a simple processing of these guideways is provided, independently of the second side members having a very large longitudinal extent.

Eine wenig Arbeitsaufwand erfordernde und eine genaue Führung der Stützrahmen ergebende Ausführungsform ist dadurch gekennzeichnet, daß Stützrahmen der ersten und/oder zweiten Stützbahn über Biegefedern mit den ersten bzw. zweiten Längsträgern in Verbindung stehen, wobei sich die Biegefedern mit ihrer Hauptrichtung in Längsrichtung der Längsträger erstrecken.A little effort requiring and accurate guidance of the support frame resulting embodiment is characterized in that support frame of the first and / or second support track via bending springs with the first and second side members in conjunction, with the bending springs extend with their main direction in the longitudinal direction of the side members ,

Gemäß einer anderen vorteilhaften Ausführungsform stehen Stützrahmen der ersten und/oder zweiten Stützbahn über Lenker mit den ersten bzw. zweiten Längsträgern in Verbindung.According to another advantageous embodiment, support frames of the first and / or second support track are connected via links to the first and second longitudinal members.

Vorzugsweise sind zwecks Einstellung unterschiedlicher Gießspalte bzw. Änderung des Gießspaltes während des Stranggießens die Stützrahmen der ersten und/oder zweiten Stützbahn an den ersten bzw. zweiten Längsträgern mittels Druckmittelzylinder, insbesondere Hydraulikzylinder, abgestützt.Preferably, in order to set different Gießspalte or change the Gießspaltes during continuous casting, the support frame of the first and / or second Supporting track on the first and second longitudinal members by means of pressure medium cylinder, in particular hydraulic cylinder, supported.

Eine einfach zu fertigende Konstruktion ist dadurch gekennzeichnet, daß die Stützrahmen der ersten und/oder zweiten Stützbahn über einen Schemel an den Druckmittelzylindern abgestützt sind, wobei vorteilhaft Medienversorgungsleitungen zum Schemel führen und über diesen in Anschlüsse der Stützrahmen münden.An easy-to-manufacture construction is characterized in that the support frame of the first and / or second support track are supported by a stool on the pressure medium cylinders, advantageously lead media supply lines to the stool and open on this in connections of the support frame.

Legt man auf eine Verstellung des Gießspaltes während des Gießens keinen Wert, so sind zweckmäßig die Druckmittelzylinder im Gießbetrieb in Richtung zu den jeweils gegenüberliegenden Längsträgern beaufschlagt und zwischen den Stützrahmen der ersten und/oder zweiten Stützbahn und den ersten bzw. zweiten Längsträgern Gießdickenbeilagen zwecks Fixierung der Lage der Stützrahmen gegenüber den Längsträgern vorgesehen.If no value is placed on an adjustment of the casting gap during casting, the pressure medium cylinders in the casting operation are expediently acted upon in the direction towards the respective opposite longitudinal members and between the support frames of the first and / or second support web and the first and second side members casting thickness inserts for the purpose of fixing the Location of the support frame relative to the longitudinal members provided.

Um Verfälschungen durch Verformungen von Bauteilen der Strangführung möglichst auszuschalten, sind gemäß einer bevorzugten Ausführungsform Gießdickenbeilagen zwischen an den ersten Längsträgern und an den Stützrahmen der zweiten Stützbahn angeordneten Stützstangen und/oder zwischen an den zweiten Längsträgern und an den Stützrahmen der ersten Stützbahn angeordneten Stützstangen vorgesehen.To eliminate distortions caused by deformations of components of the strand guide as possible, according to a preferred embodiment Gießdickenbeilagen between the first longitudinal beams and the support frame of the second support track arranged support rods and / or provided between the second longitudinal beams and the support frame of the first support track support rods.

Für einfachere und kleinere Strangführungen genügt es, wenn die Stützrahmen der ersten und/oder zweiten Stützbahn nur mittels je eines einzigen Druckmittelzylinders an jeweils zugehörigen Längsträgern abgestützt sind.For simpler and smaller strand guides it is sufficient if the support frame of the first and / or second support web are supported only by means of a single pressure cylinder to each respective longitudinal members.

Gemäß einer Ausführungsform, die in einfacher Weise die Einstellung eines konischen Gießspaltes ermöglicht, sind die Stützrahmen der ersten und/oder zweiten Stützbahn an den ersten bzw. zweiten Längsträgern über vier jeweils an den im Grundriß der Stützrahmen erscheinenden Eckbereichen angeordnete Druckmittelzylinder abgestützt.According to an embodiment which allows the setting of a conical casting gap in a simple manner, the support frames of the first and / or second support web are supported on the first and second side members via four pressure medium cylinders respectively arranged on the corner regions appearing in the plan view of the support frame.

Vorzugsweise sind zur Lagebestimmung der Stützrahmen der ersten und/oder zweiten Stützbahn gegenüber den Stützrahmen der jeweils gegenüberliegenden Stützbahn zwischen den ersten und zweiten Stützrahmen Wegsensoren vorgesehen, vorzugsweise an seitlich der Stützrahmen angeordneten und gegeneinander gerichteten Fortsätzen.Preferably, for determining the position of the support frame of the first and / or second support track relative to the support frame of the respective opposite support track between the first and second support frame displacement sensors provided, preferably arranged on the side of the support frame and oppositely directed extensions.

Hierdurch gelingt es, den Gießspalt genau zu messen, u.zw. ohne Verfälschungen durch Bauteile, wie zum Beispiel der Verbindungsmittel der Längsträger bzw. der Längsträger selbst.This makes it possible to measure the casting gap exactly, u.zw. without distortions by components, such as the connecting means of the side members or the side members themselves.

Vorzugsweise sind die zwischen den ersten und/oder zweiten Längsträgern und den Stützrahmen der ersten und/oder zweiten Stützbahn vorgesehenen Hydraulikzylinder mit einer Regelung zur Einstellung einer vorbestimmten Lage der Stützrahmen zueinander und/oder gegenüber den Längsträgern ausgestattet.The hydraulic cylinders provided between the first and / or second longitudinal carriers and the support frames of the first and / or second support track are preferably equipped with a control for setting a predetermined position of the support frames relative to one another and / or with respect to the longitudinal supports.

Bei der erfindungsgemäßen Strangführung lassen sich in einfacher Weise Kühlkammerwände direkt an den Stützrahmen der ersten und zweiten Stützbahn vorsehen, wodurch es gelingt, sämtliche heiklen Bauteile, wie Wegsensoren, Hydraulikzylinder, Gießdickenbeilagen etc., unbeeinflußt vom Kühlmittel für den Strang unterzubringen, d.h. trocken zu halten.In the strand guide according to the invention can be provided in a simple manner cooling chamber walls directly to the support frame of the first and second support track, which manages to accommodate all delicate components, such as displacement sensors, hydraulic cylinders, Gießdickenbeilagen etc., unaffected by the coolant for the strand, i. keep dry.

Um die Ein- und Ausbaubarkeit von defekten Teilen zu vereinfachen und hierdurch verursachte Betriebsstillstände möglichst kurz zu halten, sind vorteilhaft die zur Abstützung der Stützrahmen an den Längsträgern vorgesehenen Hydraulikzylinder mittels einer Schnellöseverbindung an den Längsträgern und/oder an den Stützrahmen bzw. im Falle des Vorsehens eines Schemels an diesem befestigt, vorzugsweise mittels einer Keilverbindung.In order to simplify the installation and removal of defective parts and to keep operating shortfalls caused by this as short as possible, are advantageous for supporting the support frame provided on the longitudinal beams hydraulic cylinder by means of a quick release connection to the side rails and / or to the support frame or in the case of provision a stool attached to this, preferably by means of a spline connection.

Eine bevorzugte Ausführungsform ist dadurch gekennzeichnet, daß sowohl zwischen den ersten Längsträgern und den Stützrahmen der ersten Stützbahn als auch zwischen den Stützrahmen der ersten und zweiten Stützbahn Wegsensoren vorgesehen sind.A preferred embodiment is characterized in that displacement sensors are provided both between the first longitudinal members and the support frame of the first support track and between the support frame of the first and second support track.

Eine vorteilhafte Ausführungsform ist dadurch gekennzeichnet, daß die Stützrahmen der ersten und/oder zweiten Stützbahn mit die zugehörigen Längsträger außenseitig übergreifenden Seitenfortsätzen versehen sind, mit denen die Stützrahmen an den zugehörigen Längsträgern direkt oder über Stellmittel bzw. im Falle des Vorsehens eines Schemels an diesem abgestützt sind.An advantageous embodiment is characterized in that the support frame of the first and / or second support track are provided with the associated side rail outside overlapping side extensions, with which the support frame on the associated side rails directly or via adjusting means or in the case of providing a stool supported on this are.

Für bestimmte Stranggießanlagen ist es denkbar, daß die Längsträger mit den Verbindungsmitteln einstückig ausgebildet sind.For certain continuous casting, it is conceivable that the longitudinal members are integrally formed with the connecting means.

Eine weitere vorteilhafte Ausführungsform ist dadurch gekennzeichnet, daß zwischen benachbarten Stützrahmen ein eigener Modul für die Aufnahme mindestens eines Rollenpaares, gebildet von einander gegenüberliegend angeordneten Rollen, vorgesehen ist.A further advantageous embodiment is characterized in that between adjacent support frame a separate module for receiving at least one pair of rollers, formed by oppositely arranged rollers, is provided.

Hierbei weist vorteilhaft der Modul zwei Querträger auf, wobei einer der Querträger am ersten Längsträger und der andere Querträger am zweiten Längsträger abgestützt ist und an jedem der Querträger mindestens eine angetriebene Rolle abgestützt ist, entweder direkt oder indirekt.In this case, advantageously, the module has two cross members, wherein one of the cross member is supported on the first side member and the other cross member on the second side member and at each of the cross members is supported at least one driven roller, either directly or indirectly.

Zweckmäßig ist eine angetriebene Rolle am Querträger über eine Verstelleinrichtung, wie einem Druckmittelzylinder, abgestützt.Suitably, a driven roller on the cross member via an adjusting device, such as a pressure medium cylinder, supported.

Zwecks Einstellens der Lage benachbarter Stützrahmen zueinander wird die Relativlage benachbarter Stützrahmen vermessen, wie durch die Wegsensoren oder durch ein Gießspaltmeßgerät oder durch Druckauswertungen der Drücke der Stellmittel während eines Probebetriebes und/oder während des Gießbetriebes, und wird bei Feststellen von Abweichungen der Gießspaltbahn gebildet von den Stützrahmen die Sollposition der Stützrahmen mittels der Stellmittel korrigiert.In order to adjust the position of adjacent support frame to each other, the relative position of adjacent support frame is measured, as by the displacement sensors or by a Gießspaltmeßgerät or by pressure evaluations of the pressures of the actuating means during a trial operation and / or during the casting operation, and is formed upon detection of deviations of the Gießspaltbahn of the Support frame corrected the desired position of the support frame by means of the adjusting means.

Mittels an den Verbindungsmitteln der Längsträger durchgeführter Dehnungsmessungen läßt sich vorteilhaft der Durcherstarrungspunkt des Stranges eruieren.By means of the connecting means of the longitudinal members performed strain measurements can be advantageously determine the Durcherstarrungspunkt the strand.

Die Erfindung ist nachfolgend anhand mehrerer Ausführungsbeispiele näher erläutert, wobei Fig. 1 eine Seitenansicht einer erfindungsgemäßen Strangführung gemäß einer ersten Ausfiihrungsform veranschaulicht. Fig. 2 zeigt ein Detail der Fig. 1 in vergrößertem Maßstab, teilweise geschnitten, Fig. 3 eine Schnittansicht gemäß der Linie III-III der Fig. 2. Die Fig 4, 6, 8, 10 und 12 zeigen jeweils Seitenansichten gemäß der Fig. 2 für unterschiedliche Ausführungsformen, und die Fig. 5, 7, 9, 11 und 13 Schnittansichten gemäß der Fig. 3 für die in den Fig. 4 bis 12 dargestellten Ausführungsformen, u. zw. nach den Linien V-V, VII-VII, IX-IX, XI-XI und XIII-XIII. Fig. 14 stellt ein Detail einer weiteren Ausführungsform in einer teilweise geschnittenen Seitenansicht gemäß Fig. 2 dar. Fig. 15 zeigt in der Darstellung von Fig. 6 eine abgeänderte Ausführungsform.The invention is explained in more detail below with reference to several exemplary embodiments, wherein FIG. 1 illustrates a side view of a strand guide according to the invention according to a first embodiment. Fig. 2 shows a detail of Fig. 1 on an enlarged scale, partially in section, Fig. 3 is a sectional view taken along the line III-III of Fig. 2. Figures 4, 6, 8, 10 and 12 respectively show side views of FIG 2 for different embodiments, and FIGS. 5, 7, 9, 11 and 13 are sectional views according to FIG. 3 for the embodiments shown in FIGS. 4 to 12, and the like. between the lines V-V, VII-VII, IX-IX, XI-XI and XIII-XIII. FIG. 14 shows a detail of a further embodiment in a partially sectioned side view according to FIG. 2. FIG. 15 shows in the illustration of FIG. 6 a modified embodiment.

Gemäß Fig. 1 sind die einander gegenüberliegend angeordneten Stützbahnen 1 und 2, die mit den Strang 3 an einander gegenüberliegenden Seiten 4 und 5 stützenden Stützelementen 6, im dargestellten Ausführungsbeispiel Stützrollen 6, ausgestattet sind, mit 1 und 2 bezeichnet. Fig. 1 zeigt die Strangführung im geraden Bereich, jedoch kann sich diese auch im Bogenbereich einer Stranggießanlage erstrecken.According to Fig. 1, the mutually oppositely arranged support webs 1 and 2, which are provided with the strand 3 on opposite sides 4 and 5 supporting support members 6, in the illustrated embodiment support rollers 6, designated 1 and 2. Fig. 1 shows the strand guide in the straight area, but this may also extend in the bow area of a continuous casting.

Die Stützrollen 6 sind jeweils zu mehreren an Stützrahmen 7 und 8 drehbar gelagert. Die jeweils die bogenäußeren oder unteren Stützrollen 6 aufnehmenden Stützrahmen 7 (nachfolgend "erste" Stützrahmen 7 genannt) sind unabhängig von den die oberen bzw. bogeninneren Stützrollen 6 tragenden Stützrahmen 8, nachfolgend als "zweite" Stützrahmen 8 bezeichnet, an seitlich der Stützrahmen 7 angeordneten ersten Längsträgern 9, die sich in Längsrichtung 10 der Strangführung erstrecken, u.zw. über mehrere Stützrahmen 7 hinweg, über Konsolen 11 befestigt.The support rollers 6 are each rotatably mounted to a plurality of support frames 7 and 8. The respectively the bow outer or lower support rollers 6 receiving support frame 7 (hereinafter referred to as "first" support frame 7) are independent of the upper or inner bow support rollers 6 supporting support frame 8, hereinafter referred to as "second" support frame 8 denotes, on the side of the support frame 7 arranged first longitudinal members 9, which extend in the longitudinal direction 10 of the strand guide, u.zw. over several support frame 7 away, attached via brackets 11.

Die oberen bzw. zweiten Stützrahmen 8 sind ebenfalls an sich in Längserstreckung 10 der Strangführung erstreckenden zweiten Längsträgern 12 befestigt, die sich etwa äquidistant zu den ersten Längsträgern 9 erstrecken. Die zweiten Längsträger 12 sind an den ersten Längsträgern 9, die am Fundament 13 gelagert sind, über Verbindungsmittel 14 abgestützt, die vorteilhaft als Zuganker - zur Aufnahme des ferrostatischen Druckes - ausgebildet sind. Diese Zuganker 14 können als Biegestäbe gestaltet sein, wodurch sich unterschiedliche Längsdehnungen der ersten Längsträger 9 gegenüber den zweiten Längsträgern 12 in sehr einfacher Weise kompensieren lassen.The upper and second support frames 8 are also attached to extending in the longitudinal extent 10 of the strand guide second side rails 12, which extend approximately equidistant from the first side rails 9. The second longitudinal members 12 are supported on the first longitudinal members 9, which are mounted on the foundation 13, via connecting means 14, which are advantageously designed as tie rods - for receiving the ferrostatic pressure - are formed. These tie rods 14 may be designed as flexural rods, which allow different longitudinal expansion of the first longitudinal member 9 with respect to the second longitudinal members 12 compensate in a very simple manner.

Die Längsträger 9, 12 können mit den Verbindungsmitteln 14 verschraubt oder verschweißt ausgeführt sein; es ist jedoch auch möglich, die von jeweils einem unteren und oberen Längsträger 9, 12 und den Verbindungsmitteln 14 gebildete, als Scheibe wirkende Konstruktion einstückig auszuführen. Die unteren Längsträger 9 können auch Bestandteil einer Fundamentkonstruktion sein.The longitudinal members 9, 12 may be screwed or welded to the connecting means 14; However, it is also possible to make the one of a lower and upper side members 9, 12 and the connecting means 14 formed, acting as a disk construction in one piece. The lower side members 9 may also be part of a foundation construction.

Wesentlich für die leichte Aus- und Einbaubarkeit der zweiten Stützrahmen 8 ist, daß sich diese von oben an den zweiten Längsträgern 12 abstützen, zu welchem Zweck die zweiten Stützrahmen 8 mit die zweiten Längsträger 12 überragenden Seitenfortsätzen 8' ausgestattet sind, an denen entweder Hydraulikzylinder 16 direkt angreifen oder die sich auf Schemel 8" stützen, die wiederum ihrerseits an Hydraulikzylindern 16 abgestützt sind.Essential for the easy removal and installation of the second support frame 8 is that these are supported from above on the second side members 12, for which purpose the second support frame 8 with the second side members 12 superior side extensions 8 'are provided, on which either hydraulic cylinder sixteenth attack directly or rely on stool 8 ", which in turn are supported on hydraulic cylinders 16.

An einer Stelle der Längserstreckung der ersten und zweiten Längsträger 9, 12 sind diese über ein Element 15 zur gegenseitigen Fixierung ihrer Lage verbunden. Dieses Element 15 nimmt zwischen den ersten und zweiten Längsträgern wirkende Schubkräfte auf und ist beim dargestellten Ausführungsbeispiel als etwa unter 45° gerichtete Stütze ausgebildet.At one point of the longitudinal extent of the first and second side members 9, 12, these are connected via an element 15 for mutual fixation of their position. This element 15 receives between the first and second longitudinal members acting shear forces and is formed in the illustrated embodiment as directed approximately 45 ° support.

Die ersten und die zweiten Längsträger 9 und 12 bilden mit den Verbindungsmitteln 14 jeweils einen am Fundament 13 abgestützten Fundamentrahmen, zwischen denen sich unten ein Zunderkanal erstreckt, der auch zur Abführung des Kühlwassers, das zur Kühlung des Stranges 3 eingesetzt wird, dient.The first and the second longitudinal members 9 and 12 form with the connecting means 14 each supported on the foundation 13 foundation frame, between which a Zunderkanal extends below, which also serves for the discharge of the cooling water, which is used for cooling the strand 3.

Gemäß der in den Fig. 1 bis 3 dargestellten Ausführungsform sind die oberen bzw. zweiten Stützrahmen 8 über vier Hydraulikzylinder 16 an den zweiten Längsträgern 12 beweglich abgestützt, wobei die Anordnung der vier Hydraulikzylinder 16 derart getroffen ist, daß bei Ansicht von oben diese an den Eckpunkten der im Grundriß etwa rechteckig gestalteten zweiten Stützrahmen 8 liegen. Die Abstützung der Hydraulikzylinder 16 bzw. deren Kolbenstangen 17 mit den zweiten Längsträgern 12 und den Stützrahmen 8 bzw. Schemeln 8" erfolgt über Gelenklager, so daß es möglich ist, einen keilförmigen Gießspalt einzustellen.According to the embodiment illustrated in FIGS. 1 to 3, the upper and second support frames 8 are movable via four hydraulic cylinders 16 on the second longitudinal members 12 supported, wherein the arrangement of the four hydraulic cylinders 16 is made such that when viewed from above they are at the vertices of the approximately rectangular in plan view of the second support frame 8. The support of the hydraulic cylinder 16 and the piston rods 17 with the second longitudinal beams 12 and the support frame 8 or stools 8 "via spherical plain bearings, so that it is possible to set a wedge-shaped casting gap.

Um einen einfachen Aus- und Einbau der Hydraulikzylinder 16 zu ermöglichen, sind die Hydraulikzylinder 16 und deren Kolben 17 mit den zweiten Längsträgern 12 und/oder mit den zweiten Stützrahmen 8 bzw. den Schemeln 8" mittels Klappschrauben oder hydraulischer Spannmittel oder anderer einfach zu lösender Verbindungsmittel verbunden.In order to allow easy removal and installation of the hydraulic cylinder 16, the hydraulic cylinder 16 and its piston 17 with the second longitudinal beams 12 and / or with the second support frame 8 and the stools 8 "by means of hinged screws or hydraulic tensioning means or other easy to solve Connecting means connected.

Es ist vorteilhaft, die Hydraulikzylinder 16 nicht direkt an den Längsträgern 12 zu befestigen, sondern über Zwischenrahmen 12', die ihrerseits an den Längsträgern 12 befestigt sind, wodurch eine leicht aus- und einbaubare Einheit bzw. ein Modul, bestehend aus Zwischenrahmen 12', Hydraulikzylinder 16 und Schemel 8" gebildet ist.It is advantageous not to fasten the hydraulic cylinders 16 directly to the longitudinal members 12, but via intermediate frames 12 ', which in turn are fastened to the longitudinal members 12, whereby an easily removable and installable unit or a module consisting of intermediate frame 12', Hydraulic cylinder 16 and stool 8 "is formed.

Zur Aufnahme von in Längsrichtung 10 der Strangführung wirkenden Kräften sind die oberen bzw. zweiten Stützrahmen 8 an sich etwa senkrecht zur Längserstreckung 10 der Strangführung erstreckenden Führungsbahnen 18 mittels Gleitelementen 19, wie Gleitsteinen, geführt, wobei gemäß Fig. 2 die Führungsbahnen 18 an den zweiten Längsträgern und die Gleitsteine 19 an den Schemeln 8'' angeordnet sind; die Führungsbahnen 18 könnten jedoch auch an den Stützrahmen 8 vorgesehen sein. Die Führungsbahnen 18 sind nach einer bevorzugten Ausführungsform am Zwischenrahmen 12' vorgesehen.For receiving forces acting in the longitudinal direction 10 of the strand guide, the upper and second support frames 8 are guided approximately perpendicular to the longitudinal extension 10 of the strand guide guideways 18 by means of sliding elements 19, such as sliding blocks, wherein shown in FIG. 2, the guideways 18 to the second Side members and the sliding blocks 19 are arranged on the stools 8 ''; However, the guideways 18 could also be provided on the support frame 8. The guideways 18 are provided according to a preferred embodiment of the intermediate frame 12 '.

Wie insbesondere aus Fig. 3 zu erkennen ist, läßt sich durch einfach an den Stützrahmen 7 und 8 anzubringende Kühlkammerabdeckungen 20 eine Kühlkammer bilden, so daß sich lediglich die Stützrollen im Inneren derselben befinden, wogegen die Hydraulikzylinder 16 und die Längsträger 9, 12 außerhalb derselben liegen. Die Kühlkammerabdeckungen 20 erstrecken sich zwischen den Stützrahmen 7 und 8, u.zw. links und rechts der außenseitigen Stützwangen 21 der unteren bzw. oberen Stützrahmen 7 und 8.As can be seen in particular from Fig. 3, can be easily attached to the support frame 7 and 8 Kühlkammerabdeckungen 20 form a cooling chamber, so that only the support rollers are inside the same, whereas the hydraulic cylinder 16 and the side members 9, 12 outside the same lie. The Kühlkammerabdeckungen 20 extend between the support frame 7 and 8, u.zw. left and right of the outside support cheeks 21 of the lower and upper support frame 7 and 8th

Eine erste Medienzuführung 22 für die unteren bzw. ersten Stützrahmen 7 führt über die unteren Längsträger 9 zu diesen, und eine zweite Medienzuführung 23 für die Zuführung von Kühlwasser bzw. Druckmedium zu den Hydraulikzylindern 16 führt über die Schemel 8" zu den oberen zweiten Stützrahmen 8, wobei die an den Stützrahmen 8 montierten Leitungen beim Aufsetzen der Stützrahmen 8 auf die Schemel 8" automatisch an die Leitungen 23 angeschlossen werden, z.B. durch sogenannte Manifold-Verbindungen.A first media supply 22 for the lower or first support frame 7 leads over the lower side members 9 to these, and a second media supply 23 for the supply of cooling water or pressure medium to the hydraulic cylinders 16 via the stool 8 "to the upper second support frame eighth wherein the mounted on the support frame 8 Lines when placing the support frame 8 on the stool 8 "are automatically connected to the lines 23, for example by so-called manifold connections.

Gemäß der in den Fig. 1 bis 3 dargestellten Ausführungsform erfolgt eine Wegmessung über die Hydraulikzylinder 16, und damit eine Messung des Gießspaltes direkt in den Zylindern, d.h. diese Wegmessung ist in den Hydraulikzylindern 16 integriert.According to the embodiment shown in FIGS. 1 to 3, a displacement measurement is carried out via the hydraulic cylinders 16, and thus a measurement of the casting gap directly in the cylinders, i. This displacement measurement is integrated in the hydraulic cylinders 16.

In den Fig. 4 und 5 ist eine Ausführungsform dargestellt, bei der an jeder Seite der Strangführung für jeden zweiten Stützrahmen 8 seitlich zwecks Bewegung derselben gegenüber den zweiten Längsträgern 12 lediglich ein einziger Hydraulikzylinder 16 vorgesehen ist. Die Befestigung der Hydraulikzylinder 16 an den zweiten Längsträgern 12 ist derart ausgebildet, daß ein einfacher und rascher Ausbau der Hydraulikzylinder 16 möglich ist. Zu diesem Zweck sind einen Keilquerschnitt aufweisende Befestigungsmittel 24 vorgesehen. Die Gleitsteine 19 sind auch bei dieser Ausführungsform über Achsen 19' an den Schemeln 8" angeordnet, wobei die Enden der Kolbenstangen 17 der Hydraulikzylinder 16 ebenfalls an den Achsen 19' angreifen.4 and 5, an embodiment is shown in which on each side of the strand guide for each second support frame 8 laterally for the purpose of movement of the same relative to the second longitudinal members 12, only a single hydraulic cylinder 16 is provided. The attachment of the hydraulic cylinder 16 to the second longitudinal members 12 is formed such that a simple and rapid removal of the hydraulic cylinder 16 is possible. For this purpose, a wedge cross-section fastening means 24 are provided. The sliding blocks 19 are also arranged in this embodiment on the axes 19 'on the stools 8 ", wherein the ends of the piston rods 17 of the hydraulic cylinder 16 also on the axes 19' attack.

Bei dieser Ausführungsform läßt sich der Gießspalt mit Gießdickenbeilagen 25 einstellen, die zwischen den oberen bzw. zweiten Stützrahmen 8 und den zweiten Längsträgern 12 vorgesehen sind.In this embodiment, the casting gap can be adjusted with Gießdickenbeilagen 25, which are provided between the upper and second support frame 8 and the second longitudinal members 12.

Gemäß der in den Fig. 6 und 7 dargestellten Variante sind anstelle der Führungsbahnen 18 und Gleitsteine 19 Biegefedern 26 eingesetzt, die sich mit ihrer Hauptrichtung in Längsrichtung der zweiten Längsträger erstrecken. Diese Biegefedern 26 sind als Blattfederpakete ausgebildet. Sie sind einerseits mit den zweiten Längsträgern 12 und anderseits mit den zweiten Stützrahmen 8 verbunden.According to the variant shown in FIGS. 6 and 7, instead of the guide tracks 18 and sliding blocks 19, bending springs 26 are used, which extend with their main direction in the longitudinal direction of the second longitudinal members. These bending springs 26 are formed as leaf spring packets. They are connected on the one hand to the second longitudinal members 12 and on the other hand to the second support frame 8.

Die Hydraulikzylinder 16 sind an den zweiten Stützrahmen 8 befestigt und weisen bei dieser Ausführungsform Kolbenstangen 17 auf, die als Biegestäbe ausgestaltet sind, die die zweiten Längsträger 12 mit Spiel durchsetzen und deren Enden an den unteren bzw. ersten Längsträgern 9 starr befestigt sind. Hierdurch sind die oberen bzw. zweiten Stützrahmen 8 nicht an den zweiten Längsträgern 12, sondern an den ersten Längsträgern 9 abgestützt.The hydraulic cylinders 16 are attached to the second support frame 8 and have in this embodiment, piston rods 17 which are designed as bending rods which pass through the second longitudinal members 12 with play and the ends of which are rigidly fixed to the lower and first longitudinal members 9. As a result, the upper or second support frame 8 are not supported on the second longitudinal members 12, but on the first longitudinal members 9.

Gemäß der in den Fig. 8 und 9 dargestellten Ausführungsform sind Wegsensoren 27 seitlich der Strangführungsbahnen 1 und 2 vorgesehen, die an seitlich der Stützrahmen 7 und 8 angeordneten und gegeneinander gerichteten Fortsätzen 28 vorgesehen sind. Hierdurch lassen sich Meßfehler, die durch Verformungen der Längsträger 9 und 12 und der die Längsträger 9 und 12 verbindenden Verbindungsmittel 14 hervorgerufen werden könnten, vermeiden.According to the embodiment shown in FIGS. 8 and 9, displacement sensors 27 are provided laterally of the strand guide tracks 1 and 2, which are provided on projections of the support frames 7 and 8 and directed against one another. As a result, measurement errors caused by deformations of the longitudinal members 9 and 12 and the Longitudinal beams 9 and 12 connecting connecting means 14 could be caused avoid.

Eine andere Art der Einstellung des Gießspaltes mittels Gießdickenbeilagen 25 ist in den Fig. 10 und 11 gezeigt, wobei hier die Gießdickenbeilagen 25 zwischen den zweiten Stützrahmen 8 und den ersten Stützrahmen 7 wirken. Sowohl die ersten Stützrahmen 7 als auch die zweiten Stützrahmen 8 sind mit gegeneinander gerichteten und zwischen sich die Gießdickenbeilagen 25 aufnehmenden Fortsätzen 29 versehen.Another type of adjustment of the casting gap by means of Gießdickenbeilagen 25 is shown in Figs. 10 and 11, in which case the Gießdickenbeilagen 25 between the second support frame 8 and the first support frame 7 act. Both the first support frame 7 and the second support frame 8 are provided with oppositely directed and between the Gießdickenbeilagen 25 receiving projections 29.

Die Gießdickenbeilagen 25 können in ihrer Höhe zwecks Einstellung unterschiedlicher Gießdicken verstellbar oder gegen andere Gießdickenbeilagen 25 mit anderer Höhe austauschbar sein.The Gießdickenbeilagen 25 may be adjustable in height for the purpose of setting different Gießdicken or exchanged for other Gießdickenbeilagen 25 with different height.

Eine vorteilhafte Ausführungsform ist weiters in den Fig. 12 und 13 gezeigt, gemäß der nicht nur die zweiten Stützrahmen 8 an den zweiten Längsträgern 12 über Hydraulikzylinder 16 abgestützt sind, sondern auch die ersten Stützrahmen 7 an den ersten Längsträgern 9. Hierbei sind die ersten Längsträger 9 über Stützsäulen 30 im Abstand 31 vom Fundament 13 angeordnet und gegenüber diesem abgestützt.An advantageous embodiment is further shown in Figs. 12 and 13, according to which not only the second support frame 8 are supported on the second longitudinal members 12 via hydraulic cylinders 16, but also the first support frame 7 on the first side members 9. Here are the first side members 9 arranged on support columns 30 at a distance 31 from the foundation 13 and supported relative to this.

Sämtliche der oben beschriebenen Ausführungsformen der Lagerung bzw. Führung der zweiten Stützsegmente 8 an den zweiten Längsträgern 12 können auch zur Lagerung und Führung der ersten Stützrahmen 7 an den ersten Längsträgern 9 herangezogen werden, so daß eine im wesentlichen symmetrisch zur Strangführungsmittelebene, veranschaulicht durch die Linie 10, ausgebildete Strangführung gebildet ist. Zur Einstellung des Gießspaltes sind bei dieser Ausführungsform Wegsensoren 27 zwischen den ersten und zweiten Stützrahmen 7 und 8 und zusätzlich zwischen den ersten Stützrahmen 7 und den ersten Längsträgern 9 vorgesehen. Diese Variante bietet den Vorteil, daß sowohl die ersten als auch die zweiten Stützrahmen 7 und 8 unabhängig voneinander und unabhängig von den Längsträgern 9 und 12 und den Anstellmechanismen gewechselt werden können.All of the above-described embodiments of the bearing or guiding of the second support segments 8 on the second longitudinal members 12 can also be used for supporting and guiding the first support frame 7 on the first longitudinal members 9, so that a substantially symmetrical to the strand guide means plane, illustrated by the line 10, formed strand guide is formed. To adjust the Gießspaltes displacement sensors 27 between the first and second support frame 7 and 8 and in addition between the first support frame 7 and the first side rails 9 are provided in this embodiment. This variant has the advantage that both the first and the second support frame 7 and 8 can be changed independently and independently of the longitudinal members 9 and 12 and the adjusting mechanisms.

Weiters kann ein sprungstellenfreier und knickfreier Verlauf auch der unteren Stützbahn 1 sowie ein symmetrisch zur Mittelebene 10 keilförmig ausgebildeter Gießspalt in einfacher Weise verwirklicht werden.Furthermore, a jump-free and kink-free course of the lower support track 1 and a symmetrical to the median plane 10 wedge-shaped casting gap can be realized in a simple manner.

Gemäß Fig. 14 sind die Hydraulikzylinder 16 an einem die Führungsbahnen 18 für die zweiten Stützrahmen 8 aufweisenden Modul 32 abgestützt, welches Modul 32 in die zweiten Längsträger 12 eingesetzt und an diesen mit einer Schnellöseverbindung befestigt ist. Die Schnellöseverbindung ist hierbei von Halbringen 33 gebildet, die mit Keilflächen ausgestattet sind, die an Gegenkeilflächen des Moduls 32 angreifen. Das Modul 32 ist vom Zwischenrahmen 12', den Druckmittelzylindern 16 und dem Schemel 8" gebildet.According to FIG. 14, the hydraulic cylinders 16 are supported on a module 32 having the guideways 18 for the second support frame 8, which module 32 is inserted into the second side members 12 and attached to them with a quick-release connection. The Quick release connection is in this case formed by half-rings 33, which are equipped with wedge surfaces which engage counter-wedge surfaces of the module 32. The module 32 is formed by the intermediate frame 12 ', the pressure medium cylinders 16 and the stool 8 ".

Die erfindungsgemäße Konstruktion weist gegenüber den bekannten Konstruktionen zahlreiche Vorteile auf, wie zum Beispiel die einfache Wechselmöglichkeit der Stützrahmen 8 sowie gemäß den Fig. 12 und 13 auch der Stützrahmen 7 ohne große Umbauarbeiten, ausgezeichnete Zugänglichkeit von der Seite, eine einfache Kühlkammerkapselung, und bietet weiters die Möglichkeit, eine automatische Gießdickeneinstellung mit Positionsmessung durchführen zu können. Ein weiterer Vorteil ist darin zu sehen, daß bei einem Wechsel eines Stützrahmens 7 oder 8 die Hydraulik und Elektrik nicht entkoppelt werden müssen, da bei einem Wechsel eines Stützrahmens 7 oder 8 die Hydraulikzylinder 16 und allenfalls Wegmeßelemente 27 in der Anlage verbleiben können.The construction according to the invention has numerous advantages over the known constructions, such as the simple possibility of changing the support frame 8 and according to FIGS. 12 and 13 and the support frame 7 without major alterations, excellent accessibility from the side, a simple Kühlkammerkapselung, and further offers the possibility to perform an automatic casting thickness adjustment with position measurement. Another advantage is the fact that when changing a support frame 7 or 8, the hydraulic and electrical systems do not have to be decoupled, since when changing a support frame 7 or 8, the hydraulic cylinder 16 and possibly Wegmeßelemente 27 can remain in the system.

Fig. 15 zeigt eine Ausführungsform einer Strangführung analog zu der Darstellung der Fig. 6, wobei jedoch im Unterschied zur Auführungsform nach Fig. 6 zwischen zwei benachbarten von den Stützrahmen 7 und 8 gebildeten Elementen ein von diesen Stützrahmen 7 und 8 unabhängiger Modul 34 zur Aufnahme eines Rollenpaares angetriebener Rollen 35 eingebaut ist. Dieser Modul 34 wird von einem unteren Querträger 36 und einem oberen Querträger 37 gebildet, wobei der untere Querträger 36 am unteren, d.h. ersten Längsträger 9 und der obere Querträger 37 am oberen Längsträger, d.h. am zweiten Längsträger 12 befestigt sind. Die obere angetriebene Rolle 35 des Rollenpaares ist über Druckmittelzylinder 38 heb- und senkbar um an unterschiedliche Strangformate angestellt bzw. um an die Oberfläche des Stranges angedrückt werden zu können.Fig. 15 shows an embodiment of a strand guide analogous to the representation of Fig. 6, but in contrast to the Auführungsform of FIG. 6 between two adjacent formed by the support frame 7 and 8 elements independent of these support frame 7 and 8 module 34 for receiving a pair of rollers driven rollers 35 is installed. This module 34 is formed by a lower cross member 36 and an upper cross member 37, the lower cross member 36 at the lower, i. first side member 9 and upper cross member 37 on the upper side member, i. are attached to the second longitudinal member 12. The upper driven roller 35 of the pair of rollers can be raised and lowered by means of pressure medium cylinder 38 to be employed to different strand formats or to be pressed against the surface of the strand can.

Der Vorteil dieser Ausführungsform ist darin zu sehen, daß ein Wechsel der Stützrahmen 7 und 8 unabhängig von den angetriebenen Rollen 35 erfolgen kann, wodurch ein solcher Wechsel weniger zeitaufwendig ist, zumal angetriebene Rollen eine hohen Wechselzeitaufwand erfordern u.z. wegen der zu entkoppelnden Gelenkwellen. Ein solches Entkoppeln der Gelenkwellen muß gemäß dieser Ausführungsform nur mehr dann erfolgen, wenn eine angetriebene Rolle selbst gewechselt werden muß und nicht für einen Wechsel von nicht angetriebenen Rollen.The advantage of this embodiment is the fact that a change of the support frame 7 and 8 can be done independently of the driven rollers 35, whereby such a change is less time consuming, especially since driven rollers require a high switching time expenditure u.z. because of the drive shafts to be decoupled. Such decoupling of the propeller shafts according to this embodiment must be done only when a driven roller itself must be replaced and not for a change of non-driven rollers.

Fig. 15 zeigt weiters Kraftmeßeinrichtungen 39, wie z.B. Dehnmeßstreifen, an den Kolben 17 der Hydraulikzylinder 16 Hierbei erfolgt eine äußerst genaue Kraftmessung, zumal die Kolben 17 alleine durch Zugkräfte beansprucht sind.Fig. 15 further shows force measuring devices 39, e.g. Dehnmeßstreifen, to the piston 17 of the hydraulic cylinder 16 Here, an extremely accurate force measurement, especially since the piston 17 alone are subjected to tensile forces.

Claims (29)

  1. A strand guide for a continuous casting plant, comprising two straight and/or curved supporting paths (1, 2) arranged opposite to each other, supporting a strand (3) on opposing sides (4, 5) and provided with supporting elements (6) such as supporting rolls (6), wherein the supporting elements (6) of, in each case, one of the supporting paths (1, 2) are arranged on supporting frames (7, 8) in pairs or in groups of several, which supporting frames are supported, in groups of several, on a foundation frame (9, 12, 14) supported on the foundation, which foundation frame (9, 12, 14) comprises two first longitudinal beams (9) located at the side of a first lower or outwardly curved supporting path (1), respectively, and extending in the longitudinal direction (10) of said first supporting path (1) and two further second longitudinal beams (12) located at the side of the second upper or inwardly curved supporting path (2), respectively, which is opposite to the first supporting path (1), and extending in the longitudinal direction (10) of the second supporting path (2), characterized in that
    • the second longitudinal beams (12) are, in each case, rigidly connected, by spaced-apart connecting means (14), to a first longitudinal beam (9) located on the same side of the supporting paths (1, 2) and are supported on the foundation (13) via the first longitudinal beams (9),
    • the supporting frames (7) of the first supporting path (1) are connected to the first longitudinal beams (9) independently of the connecting means (14) of the longitudinal beams (9, 12) and the supporting frames (8) of the second supporting path (2) are connected to the first or second longitudinal beams (9, 12) via adjusting means (16, 17), also independently of the connecting means (14) of the longitudinal beams (9, 12), wherein the supporting frames (8) of the second supporting path (2) are removable from the second longitudinal beams (12) in an upward direction and/or toward the inside of the curve, independently of the supporting frames (7) of the first supporting path (1).
  2. A strand guide according to claim 1, characterized in that the supporting frames (7) of the first supporting path (1) are connected to the first longitudinal beams (9) via adjusting means (16), independently of the connecting means (14) of the longitudinal beams (9, 12).
  3. A strand guide according to claim 1 or 2, characterized in that the connecting means (14) of the longitudinal beams (9, 12) are designed as tension rods (14).
  4. A strand guide according to claim 3, characterized in that the tension rods (14) are designed as flexible rods (14) and that the first and second longitudinal beams (9, 12) are secured against each other at a point of their longitudinal extension via an element (15) absorbing shearing forces developing between the longitudinal beams (9, 12).
  5. A strand guide according to one or several of claims 1 to 4, characterized in that the first and/or second longitudinal beams (9, 12) are provided with guideways (18) extending roughly vertically to their longitudinal extension for receiving sliding elements (19) provided on supporting frames (7, 8) of the first and second supporting paths (1, 2), respectively.
  6. A strand guide according to claim 5, characterized in that the guideways (18) are designed as modules (32) incorporable into the longitudinal beams (9, 12) and fixable relative to said longitudinal beams.
  7. A strand guide according to one or several of claims 1 to 6, characterized in that supporting frames (7, 8) of the first and/or second supporting path (1, 2) are associated with the first and second longitudinal beams (9, 12), respectively, via spiral springs (26), with the spiral springs (26) extending, with their principal direction, in the longitudinal direction (10) of the longitudinal beams (9, 12).
  8. A strand guide according to one or several of claims 1 to 6, characterized in that supporting frames (7, 8) of the first and/or second supporting path (1, 2) are associated with the first and second longitudinal beams (9, 12), respectively, via guide elements.
  9. A strand guide according to one or several of claims 1 to 8, characterized in that the supporting frames (7, 8) of the first and/or second supporting path (1, 2) are supported on the first and second longitudinal beams (9, 12), respectively, by means of pressure cylinders (16), especially hydraulic cylinders (16).
  10. A strand guide according to one or several of claims 1 to 9, characterized in that the supporting frames (7, 8) of the first and/or second supporting path (1, 2) are supported on the pressure cylinders via a stool (8").
  11. A strand guide according to claim 10, characterized in that media supply lines (23) lead to the stool (8") and, via the latter, run into connections of the supporting frames (7, 8).
  12. A strand guide according to one or several of claims 9 to 11, characterized in that the pressure cylinders (16) are charged during the casting operation in the direction toward the respective opposing longitudinal beams (9, 12) and that shims for the casting thickness (25) are provided between the supporting frames (7, 8) of the first and second supporting paths (1, 2) for securing the position of the supporting frames (7, 8) relative to each other.
  13. A strand guide according to claim 12, characterized in that shims for the casting thickness (25) are provided between supporting bars (29) arranged at the side of the first supporting frames (7) and on the supporting frames (8) of the second supporting path (2).
  14. A strand guide according to one or several of claims 1 to 13, characterized in that the supporting frames (7, 8) of the first and/or second supporting path (1, 2) are supported on respective longitudinal frames (9, 12) associated therewith only by means of a single pressure cylinder (16) each.
  15. A strand guide according to one or several of claims 1 to 13, characterized in that the supporting frames (7, 8) of the first and/or second supporting path (1, 2) are supported on the first and second longitudinal frames (9, 12), respectively, via four pressure cylinders (16) which, in each case, are arranged in the corner areas that appear in the plan view of the supporting frames.
  16. A strand guide according to one or several of claims 1 to 15, characterized in that, for determining the position of the supporting frames (7, 8) of the first and/or second supporting path (1, 2) relative to the supporting frames (7, 8) of the respective opposing supporting path (1, 2), travel sensors (27) are provided between the first and second supporting frames (7, 8), preferably on extensions (28) arranged at the side of the supporting frames (7, 8) and oriented toward each other.
  17. A strand guide according to one or several of claims 9 to 16, characterized in that the hydraulic cylinders (16) provided between the first and/or second longitudinal beams (9, 12) and the supporting frames (7, 8) of the first and/or second supporting path (1, 2) are provided with a controller for adjusting a predetermined position of the supporting frames (7, 8) relative to each other and/or relative to the longitudinal beams (9, 12).
  18. A strand guide according to claim 17, characterized in that the hydraulic cylinders (16) are coupled with travel sensors (27).
  19. A strand guide according to one or several of claims 1 to 18, characterized in that cooling chamber walls (20) are provided directly on the supporting frames (7, 8) of the first and second supporting paths.
  20. A strand guide according to one or several of claims 9 to 19, characterized in that the hydraulic cylinders (16) provided for supporting the supporting frames (7, 8) on the longitudinal beams (9, 12) are attached to the longitudinal beams (9, 12) and/or to the supporting frames (7, 8) or, in case a stool (8") is provided, to the latter, respectively, by means of an easily detachable connection, preferably by means of a wedge connection.
  21. A strand guide according to one or several of claims 1 to 20, characterized in that travel sensors (27) are provided between the first longitudinal beams (9) and the supporting frames (7) of the first supporting path (1) and also between the supporting frames (7, 8) of the first and second supporting paths (1, 2).
  22. A strand guide according to one or several of claims 1 to 21, characterized in that the supporting frames (7, 8) of the first and/or second supporting path (1, 2) are provided with lateral extensions (8') overlapping the longitudinal beams (9, 12) associated therewith on the outside, by means of which lateral extensions the supporting frames (7, 8) are supported on the associated longitudinal beams (9, 12) either directly or via adjusting means (16), or, in case a stool (8") is provided, on the latter, respectively.
  23. A strand guide according to one or several of claims 1 to 22, characterized in that the longitudinal beams (9, 12) are formed in one piece with the connecting means (14).
  24. A strand guide according to one or several of claims 1 to 23, characterized in that a separate module (34) for receiving at least one pair of rolls, formed by rolls (35) which are driven and arranged opposite to each other, is provided between adjacent supporting frames (7, 8).
  25. A strand guide according to claim 24, characterized in that the module (34) comprises two cross beams (36, 37), with one of the cross beams (36) being supported on the first longitudinal beam (9) and the other cross beam (37) being supported on the second longitudinal beam (12), and that at least one driven roll (35) is supported either directly or indirectly on each of the cross beams (36, 37).
  26. A strand guide according to claim 25, characterized in that a driven roll (35) is supported on the cross beam (37) via a displacement means (38) such as a pressure cylinder (38).
  27. A strand guide according to one or several of claims 9 to 26, characterized in that the adjusting means (16, 17) are provided with force-sensing means (39), preferably with wire strain gauges.
  28. A method of adjusting the position of adjacent supporting frames (7, 8) relative to each other in a plant according to one or several of claims 1 to 27, characterized in that the relative position of adjacent supporting frames (7, 8) is measured, such as by the travel sensors or by a device for measuring the casting gap or by pressure evaluations of the pressures of the adjusting means (16) during a test run and/or during the casting operation, and that the desired position of the supporting frames (7, 8) is corrected with the aid of the adjusting means upon detection of deviations of the casting-gap path formed by the supporting paths (1, 2).
  29. A method of determining the point of complete solidification of a strand cast in a plant according to one or several of claims 1 to 27, characterized in that strain measurements are performed on the connecting means (14) of the longitudinal beams (9, 12).
EP01940010A 2000-06-02 2001-06-01 Strand guide for a continuous casting installation Expired - Lifetime EP1286796B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT9732000A AT408853B (en) 2000-06-02 2000-06-02 STRING GUIDANCE FOR A CONTINUOUS CASTING SYSTEM
AT973002000 2000-06-02
PCT/AT2001/000182 WO2001091942A1 (en) 2000-06-02 2001-06-01 Strand guide for a continuous casting installation

Publications (2)

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EP1286796A1 EP1286796A1 (en) 2003-03-05
EP1286796B1 true EP1286796B1 (en) 2007-01-03

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AT (1) AT408853B (en)
DE (1) DE50111806D1 (en)
WO (1) WO2001091942A1 (en)

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Publication number Priority date Publication date Assignee Title
WO2009100813A1 (en) 2008-02-14 2009-08-20 Sms Siemag Ag Strand guide, in particular for a continuous steel slab casting installation

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Publication number Priority date Publication date Assignee Title
DE102011088127A1 (en) * 2011-06-07 2012-12-13 Sms Siemag Ag Strand guide segment of a strand guide of a continuous casting plant and method for operating a strand guiding segment
CN115418471B (en) * 2022-09-19 2023-08-29 祝桥金属材料启东有限公司 Steel band heat treatment device

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CH495800A (en) * 1969-05-20 1970-09-15 Concast Ag Extraction and straightening device for continuous casting systems with curved strand guidance
BE787511A (en) * 1971-08-16 1973-02-12 Uss Eng & Consult METHOD AND APPARATUS FOR STRAIGHTENING CONTINUOUS CAST PARTS
AT337386B (en) * 1975-09-03 1977-06-27 Voest Ag ROLLER FRAME FOR CONTINUOUS CASTING PLANTS
AT368049B (en) * 1979-11-28 1982-08-25 Voest Alpine Ag FITTING ON A SUPPORT AND GUIDE FOR A CONTINUOUS CASTING SYSTEM
DE3303386A1 (en) * 1983-02-02 1984-08-09 SMS Schloemann-Siemag AG, 4000 Düsseldorf SUPPORT GUIDE IN A CONTINUOUS CASTING PLANT
DE3829549A1 (en) * 1988-08-31 1990-03-08 Voest Alpine Ind Anlagen Strand-guiding stand for a continuous casting installation
DE4306853C2 (en) * 1993-02-26 1996-03-21 Mannesmann Ag Strand guide frame
DE19811651A1 (en) * 1998-03-18 1999-09-23 Schloemann Siemag Ag Support and guide system for a billet produced in a continuous casting installation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009100813A1 (en) 2008-02-14 2009-08-20 Sms Siemag Ag Strand guide, in particular for a continuous steel slab casting installation
DE102008009136A1 (en) 2008-02-14 2009-10-15 Sms Siemag Aktiengesellschaft Strand guide, in particular for a continuous steel slab caster

Also Published As

Publication number Publication date
AT408853B (en) 2002-03-25
ATA9732000A (en) 2001-08-15
WO2001091942A1 (en) 2001-12-06
EP1286796A1 (en) 2003-03-05
DE50111806D1 (en) 2007-02-15

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