EP1685916B1 - Partition plate - Google Patents

Partition plate Download PDF

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Publication number
EP1685916B1
EP1685916B1 EP20060001048 EP06001048A EP1685916B1 EP 1685916 B1 EP1685916 B1 EP 1685916B1 EP 20060001048 EP20060001048 EP 20060001048 EP 06001048 A EP06001048 A EP 06001048A EP 1685916 B1 EP1685916 B1 EP 1685916B1
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EP
European Patent Office
Prior art keywords
partition plate
mold
cast plate
composite
disposed
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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.)
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Application number
EP20060001048
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German (de)
French (fr)
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EP1685916A1 (en
Inventor
Harald Berwar
Walter Hetsch
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Individual
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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
    • B22D11/08—Accessories for starting the casting procedure
    • B22D11/086—Means for connecting cast ingots of different sizes or compositions
    • 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
    • B22D11/009—Continuous casting of metals, i.e. casting in indefinite lengths of work of special cross-section, e.g. I-beams, U-profiles
    • 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
    • B22D11/08—Accessories for starting the casting procedure
    • B22D11/088—Means for sealing the starter bar head in the moulds

Definitions

  • the invention relates to a composite cast plate for continuous casting on a beam blank continuous casting for arrangement in the region of the mold.
  • a composite cast plate is for example from the DE 18 09 997 U1 known.
  • the DE 195 04 949 U1 describes a method for producing a composite casting of a plurality of metallic matrix materials in a casting mold, in which one or more bodies to be introduced into the mold cavity are provided with a coating on their subsequent contact surfaces before the casting process, one or more melts are cast simultaneously.
  • the US 5,099,907 A describes a method and arrangement for bonding a new casting strand to a previous strand in continuous continuous casting in a continuous casting plant.
  • a pipe socket-like body which consists of a the Kokillenquerrough geometrically similar, but somewhat smaller diameter sleeve-shaped piece of pipe, which is provided approximately in the central region of its longitudinal extent with spacer elements to allow its centering within the mold. If the diameter of the tubular sleeve and timing of its insertion are chosen correctly, the sleeve, since it is not in the hot core of the strand, is not at risk of being melted. The sleeve comes into contact with the outer, cold strand shell, which on further cooling on the Sleeve shrinks, creating a positive connection is generated.
  • this device is not suitable for beam blank continuous casting.
  • a composite casting a casting stop with distributor change or steel quality change - you also need a dummy head, which establishes the connection between the last cast, still liquid steel and the newly zuzugelloenden steel.
  • the element assuming this function is called a composite cast plate. It is preferably made of steel.
  • the object of the invention is to provide a composite cast plate, which is suitable for beam blank continuous casting and avoids breakthroughs and the resulting plant downtime.
  • the composite cast plate makes the connection between the last cast, still liquid steel and the new steel to be cast and consists of a sheet-like element with a peripheral seal, both sides of the composite cast plate and substantially perpendicular to this ever at least one Pipe socket is arranged, wherein the pipe socket has a tip on the strand side facing.
  • the seal prevents the passage of steel between the mold and the tubing strand.
  • the measure according to the invention makes it possible to carry out composite casting even on a beam blank continuous casting plant, which was hitherto not feasible.
  • the composite cast plate according to the invention can also be used.
  • a development of the invention is that both sides of the composite cast plate and arranged substantially perpendicular to this two pipe sockets.
  • the pipe socket each have at least one bore.
  • These cans also serve to increase the adhesion between the composite cast plate and the liquid metal.
  • the composite cast plate consists of a flat element 1, which has a circumferential seal.
  • the pipe socket 2 on the side facing the strand A has a tip 4.
  • the composite cast plate 1 four cans 5 on.
  • Both the pipe socket 2 with the holes 3 and the bushes 5 serve to increase the frictional connection between the composite cast plate 1 and the adjacent liquid metal.

Description

Die Erfindung betrifft eine Verbundgußplatte für das Stranggießen auf einer Beam-Blank-Stranggießanlage zur Anordnung im Bereich der Kokille.The invention relates to a composite cast plate for continuous casting on a beam blank continuous casting for arrangement in the region of the mold.

Eine Verbundgußplatte ist beispielsweise aus der DE 18 09 997 U1 bekannt.A composite cast plate is for example from the DE 18 09 997 U1 known.

Die DE 195 04 949 U1 beschreibt ein Verfahren zur Herstellung eines Verbundgußteils aus mehreren metallischen Werkstoffen mit metallischer Matrix in einer Gießform, bei dem an einen oder mehreren in den Formhohlraum einzubringenden Körpern deren spätere Kontaktflächen vor dem Gießvorgang mit einem Überzug versehen werden, eine Schmelze oder mehrere Schmelzen gleichzeitig angegossen werden.The DE 195 04 949 U1 describes a method for producing a composite casting of a plurality of metallic matrix materials in a casting mold, in which one or more bodies to be introduced into the mold cavity are provided with a coating on their subsequent contact surfaces before the casting process, one or more melts are cast simultaneously.

Zum Start des Stranggußvorgangs benötigt man in der Kupferkokille einen Anfahrkopf. Dieser hat eine bestimmte Formgebung, damit ein Kraftschluß mit dem abgekühlten Flüssigstahl erfolgen kann und das Stranggießen beginnt.To start the Stranggußvorgangs needed in the copper mold a head. This has a certain shape, so that a frictional connection can be made with the cooled liquid steel and the continuous casting begins.

Der Freiraum zwischen dem Kaltstrang-Anfahrkopf und der Kokille wurde bisher mittels einer Feuerfestschnur oder mit sonstigen Materialien abgedichtet. Dies ist zum einen zeitaufwendig und zum anderen besteht hierbei die Gefahr eines Durchbruchs.The space between the dummy bar approach head and the mold has hitherto been sealed by means of a refractory cord or other materials. On the one hand, this is time-consuming and, on the other hand, there is the danger of a breakthrough.

Die US 5,099,907 A beschreibt ein Verfahren und eine Anordnung zum Anbinden eines neuen Gießstranges an einen vorhergehenden Strang beim kontinuierlichen Stranggießen in einer Stranggießanlage. Hierzu wird ein rohrstutzenartiger Körper verwendet, der aus einem dem Kokillenquerschnitt geometrisch ähnlichen, aber im Durchmesser etwas kleineren muffenartigen Rohrstück besteht, welches etwa im mittleren Bereich seiner Längserstreckung mit Abstandshalterelementen versehen ist, um seine Zentrierung innerhalb der Kokille zu ermöglichen. Wenn der Durchmesser der rohrartigen Muffe und der Zeitpunkt ihres Einbringens richtig gewählt werden, ist die Muffe, da sie sich nicht im heißen Kern des Stranges befindet, nicht der Gefahr ausgesetzt, geschmolzen zu werden. Die Muffe kommt mit der äußeren, erkaltenden Strangschale in Berührung, die beim weiteren Erkalten auf die Muffe aufschrumpft, wodurch eine kraftschlüssige Verbindung erzeugt wird. Allerdings ist diese Vorrichtung nicht für Beam-Blank-Stranggießanlagen geeignet.The US 5,099,907 A describes a method and arrangement for bonding a new casting strand to a previous strand in continuous continuous casting in a continuous casting plant. For this purpose, a pipe socket-like body is used, which consists of a the Kokillenquerschnitt geometrically similar, but somewhat smaller diameter sleeve-shaped piece of pipe, which is provided approximately in the central region of its longitudinal extent with spacer elements to allow its centering within the mold. If the diameter of the tubular sleeve and timing of its insertion are chosen correctly, the sleeve, since it is not in the hot core of the strand, is not at risk of being melted. The sleeve comes into contact with the outer, cold strand shell, which on further cooling on the Sleeve shrinks, creating a positive connection is generated. However, this device is not suitable for beam blank continuous casting.

Bei einem Verbundguß - einem Gießstopp mit Verteilerwechsel oder bei Stahl-Qualitätswechsel - benötigt man ebenso einen Anfahrkopf, der die Verbindung herstellt zwischen dem zuletzt gegossenen, noch flüssigen Stahl und dem neu anzugießenden Stahl. Das diese Funktion übernehmende Element wird als Verbundgußplatte bezeichnet. Sie besteht vorzugsweise aus Stahl.In a composite casting - a casting stop with distributor change or steel quality change - you also need a dummy head, which establishes the connection between the last cast, still liquid steel and the newly zuzugießenden steel. The element assuming this function is called a composite cast plate. It is preferably made of steel.

Aufgabe der Erfindung ist es, eine Verbundgußplatte zu schaffen, die für Beam-Blank-Stranggießanlagen geeignet ist und Durchbrüche und die dadurch hervorgerufenen Anlagenstillstände vermeidet.The object of the invention is to provide a composite cast plate, which is suitable for beam blank continuous casting and avoids breakthroughs and the resulting plant downtime.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Verbundgußplatte die Verbindung herstellt zwischen dem zuletzt gegossenen, noch flüssigen Stahl und dem neu anzugießenden Stahl und aus einem flächigen Element mit einer umlaufenden Dichtung besteht, wobei beidseits der Verbundgußplatte und im wesentlichen senkrecht zu dieser je mindestens ein Rohrstutzen angeordnet ist, wobei der Rohrstutzen an der dem Strang zugewandten Seite eine Spitze aufweist.This object is achieved in that the composite cast plate makes the connection between the last cast, still liquid steel and the new steel to be cast and consists of a sheet-like element with a peripheral seal, both sides of the composite cast plate and substantially perpendicular to this ever at least one Pipe socket is arranged, wherein the pipe socket has a tip on the strand side facing.

Die Dichtung verhindert das Durchlaufen von Stahl zwischen Kokille und Wannstrang.The seal prevents the passage of steel between the mold and the tubing strand.

Durch die erfindungsgemäße Maßnahme wird es möglich, auch auf einer Beam-Blank-Stranggießanlage Verbundguß durchzuführen, was bisher nicht machbar war. Jedoch auch bei anderen Stranggießanlagen, wie Bramme-, Vorblock- oder Knüppel-Stranggießanlagen kann die erfindungsgemäße Verbundgußplatte ebenfalls zum Einsatz kommen.The measure according to the invention makes it possible to carry out composite casting even on a beam blank continuous casting plant, which was hitherto not feasible. However, in other continuous casters, such as slab, billet or billet continuous casting, the composite cast plate according to the invention can also be used.

Durch die Erfindung wird ein kontinuierliches Gießen ohne Gießpause möglich, wodurch die Anlagenverfügbarkeit und eine höhere Wirtschaftlichkeit erreicht werden. Auch wird die Betriebssicherheit gesteigert.Through the invention, a continuous casting without casting pause is possible, whereby the plant availability and higher efficiency can be achieved. Also, the reliability is increased.

Eine Weiterbildung der Erfindung besteht darin, daß beidseits der Verbundgußplatte und im wesentlichen senkrecht zu dieser je zwei Rohrstutzen angeordnet sind.A development of the invention is that both sides of the composite cast plate and arranged substantially perpendicular to this two pipe sockets.

Hierbei ist es vorteilhaft, daß die Rohrstutzen jeweils mindestens eine Bohrung aufweisen.It is advantageous that the pipe socket each have at least one bore.

Durch die Rohrstutzen mit den Bohrungen wird ein Kraftschluß zwischen der Verbundgußplatte und dem jeweils anliegenden flüssigen Metall geschaffen.Through the pipe socket with the holes, a frictional connection between the composite cast plate and the respective adjacent liquid metal is created.

Schließlich ist vorgesehen, daß auf der der Kokille zugewandten Seite mindestens eine, vorzugsweise vier Büchsen angeordnet sind.Finally, it is provided that on the side facing the mold at least one, preferably four cans are arranged.

Auch diese Büchsen dienen dazu, den Kraftschluß zwischen der Verbundgußplatte und dem flüssigen Metall zu erhöhen.These cans also serve to increase the adhesion between the composite cast plate and the liquid metal.

Nachfolgend wird eine beispielhafte Ausgestaltung der Erfindung anhand von Zeichnungen erläutert.Hereinafter, an exemplary embodiment of the invention will be explained with reference to drawings.

Es zeigen

Fig. 1
eine erfindungsgemäße Verbundgußplatte in Seitenansicht und
Fig. 2
eine Draufsicht auf eine erfindungsgemäße Verbundgußplatte.
Show it
Fig. 1
a composite cast plate according to the invention in side view and
Fig. 2
a plan view of a composite cast plate according to the invention.

Wie aus den Figuren zu entnehmen ist, besteht die Verbundgußplatte aus einem flächigen Element 1, das eine umlaufende Dichtung aufweist.As can be seen from the figures, the composite cast plate consists of a flat element 1, which has a circumferential seal.

Beidseits der Verbundgußplatte 1 und im wesentlichen senkrecht zu dieser sind zwei Rohrstutzen 2 angeordnet, die jeweils mindestens eine Bohrung 3 aufweisen. Der Rohrstutzen 2 an der dem Strang zugewandten Seite A weist eine Spitze 4 auf. Auf der der Kokille zugewandten Seite B weist die Verbundgußplatte 1 vier Büchsen 5 auf.On both sides of the composite cast plate 1 and substantially perpendicular to this two pipe sockets 2 are arranged, each having at least one bore 3. The pipe socket 2 on the side facing the strand A has a tip 4. On the side facing the mold B, the composite cast plate 1 four cans 5 on.

Sowohl die Rohrstutzen 2 mit den Bohrungen 3 als auch die Büchsen 5 dienen der Erhöhung des Kraftschlusses zwischen der Verbundgußplatte 1 und dem anliegenden flüssigen Metall.Both the pipe socket 2 with the holes 3 and the bushes 5 serve to increase the frictional connection between the composite cast plate 1 and the adjacent liquid metal.

Der Verbundguß mit einer erfindungsgemäßen Verbundgußplatte 1 zeichnet sich durch die folgenden Schritte aus:

  • Nach Ende einer Sequenz wird der im Feuerfestmaterial verschlissene Verteiler aus der Gießposition gefahren. Die Warmstränge werden gestoppt, um die Verbundgußplatte in die Kokille setzen zu können.
  • Der Warmstrang wird in der Kokille heruntergefahren. Es wird Kühlschrott eingesetzt.
  • Danach wird der neue, vorgchcizte Verteilerwagen über die Kokille gefahren. Er wird mit Flüssigstahl befüllt und bei ausreichendem Verteilerinhalt die Stränge werden neu angegossen.
  • Nach Erreichen des Gießspiegels in der Kokille werden die Stränge angefahren.
The composite casting with a composite cast plate 1 according to the invention is characterized by the following steps:
  • After the end of a sequence, the distributor worn in the refractory material is moved out of the casting position. The hot strands are stopped in order to put the composite cast plate in the mold.
  • The hot strand is shut down in the mold. It is used cooling scrap.
  • Then the new, vorgchcizte distribution car is driven over the mold. It is filled with liquid steel and with sufficient distributor contents the strands are newly cast.
  • After reaching the pouring mirror in the mold, the strands are started.

Durch die Verwendung erfindungsgemäßer Verbundgußplatten, die das Durchlaufen von Stahl zwischen Kokille und Warmstrang verhindern, könncn Durchbrüche, die Betriebsstillstände hervorrufen, vermieden werden.By using composite cast plates according to the invention, which prevent the passage of steel between the mold and the hot strand, breakthroughs which cause downtimes can be avoided.

Claims (4)

  1. Partition plate which is suitable for continuous casting on a beam blank caster and is disposed in the area of the mould, characterised in that said partition plate forms the connection between the still molten, most recently cast steel and the fresh steel to be cast, and consists of a flat element (1) with a surrounding seal, at least one pipe socket (2) being disposed on each side of and essentially perpendicular to the partition plate (1), said pipe socket (2) on the side A facing the strand being pointed (4).
  2. Partition plate according to claim 1, characterised in that two pipe sockets (2) are disposed on each side of and essentially perpendicular to the partition plate (1).
  3. Partition plate according to claim 1 or 2, characterised in that the pipe sockets (2) each have at least one hole (3).
  4. Partition plate according to claim 1, characterised in that at least one, preferably four sleeves (5) are disposed on the side (B) facing the mould.
EP20060001048 2005-01-26 2006-01-18 Partition plate Active EP1685916B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520001310 DE202005001310U1 (en) 2005-01-26 2005-01-26 Verbundgußplatte

Publications (2)

Publication Number Publication Date
EP1685916A1 EP1685916A1 (en) 2006-08-02
EP1685916B1 true EP1685916B1 (en) 2009-03-18

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EP20060001048 Active EP1685916B1 (en) 2005-01-26 2006-01-18 Partition plate

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EP (1) EP1685916B1 (en)
DE (2) DE202005001310U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2563422C2 (en) * 2010-06-30 2015-09-20 Сименс Фаи Металз Текнолоджиз Гмбх Front part, head of fuse for continuous casting machine to cast preliminary profile
WO2012175822A1 (en) * 2011-06-23 2012-12-27 Arcelormittal Investigacion Y Desarrollo, S.L. Method and device for continuously casting a profile member blank
DE102021213770A1 (en) 2021-12-03 2023-06-07 Sms Group Gmbh Sealing system for a continuous casting plant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1809997U (en) * 1960-02-29 1960-04-21 Verschleiss Techmik Dr Ing Han COMPOSITE PLATE.
JPS5098431A (en) * 1973-12-29 1975-08-05
AT357716B (en) * 1978-09-05 1980-07-25 Voest Alpine Ag METHOD FOR CHANGING THE STRING CROSS-SECTION FORMAT AND DEVICE FOR IMPLEMENTING THE METHOD
JPS6188943A (en) * 1984-10-09 1986-05-07 Nisshin Steel Co Ltd Method of expanding width of billet during continuous casting
CA2017197C (en) * 1989-05-19 1998-09-15 Margrit Dislich Apparatus and method for the connection of a new cast strip in a continuous casting operation
JPH06238401A (en) * 1993-02-18 1994-08-30 Nippon Steel Corp Method for continuously casting different kinds of steels and connecting metal

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Publication number Publication date
DE502006003147D1 (en) 2009-04-30
EP1685916A1 (en) 2006-08-02
DE202005001310U1 (en) 2005-04-14

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