EP1364729A2 - Method and apparatus for continuous casting of round billets from molten metal, especially from molten steel - Google Patents

Method and apparatus for continuous casting of round billets from molten metal, especially from molten steel Download PDF

Info

Publication number
EP1364729A2
EP1364729A2 EP03005287A EP03005287A EP1364729A2 EP 1364729 A2 EP1364729 A2 EP 1364729A2 EP 03005287 A EP03005287 A EP 03005287A EP 03005287 A EP03005287 A EP 03005287A EP 1364729 A2 EP1364729 A2 EP 1364729A2
Authority
EP
European Patent Office
Prior art keywords
continuous casting
strand
diameters
strands
profile roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03005287A
Other languages
German (de)
French (fr)
Other versions
EP1364729B1 (en
EP1364729A3 (en
Inventor
Fritz-Peter Prof.Dr. Pleschiutschnigg
Werner Dr. Rahmfeld
Lothar Parschat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29285666&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1364729(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1364729A2 publication Critical patent/EP1364729A2/en
Publication of EP1364729A3 publication Critical patent/EP1364729A3/en
Application granted granted Critical
Publication of EP1364729B1 publication Critical patent/EP1364729B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/14Plants for continuous casting
    • B22D11/147Multi-strand plants

Definitions

  • the invention relates to a method and a continuous casting device for continuous casting of liquid metal, especially liquid steel, in multi-strand Continuous casting devices, with a supporting roller frame on each continuous casting mold follows and several strand veins run parallel to each other and the Continuous casting mold fed with melt from an upstream distributor vessel becomes.
  • Such multi-strand casting machines are built for 2, 3, 4, 5, 6 or more strands and operated.
  • Each continuous casting mold is an oscillation device with one Assigned lifting table.
  • a plurality of continuous casting molds is also a distribution vessel upstream.
  • the distribution vessels are from a ladle fed according to large capacity. However, it already occurs Temperature differences in the melt in the case of external casting strands and / or with several distribution vessels. One therefore strives to increase the number of Limit strand veins.
  • this endeavor stands for multi-strand casting plants planned production output.
  • there are different large strand diameters resulting from changing market demands result.
  • the known multi-strand caster therefore have disadvantages of an inadequate one Coordination of production performance and diameter distribution with the number of strands.
  • the invention has for its object the production performance of a multi-strand caster depending on the diameter distribution on the number of casting lines vote.
  • the object is achieved according to the invention in that a customer-specific Row of diameters relatively small strand diameters, each in twin molds and relatively larger strand diameters in single molds within be cast in a uniform continuous casting device.
  • a conventional multi-strand caster can be used with e.g. six strands through four strands with the same production output be replaced.
  • the twin system is used for smaller strand diameters and for larger ones Strand diameter the single system, so the casting performance of the casting line, on which is cast in the twin system, each consisting of a lifting table, one Continuous casting mold and an oscillation device, doubled.
  • An advantageous distribution of the total production output from strands with different Diameters is e.g. made such that for strand diameter from 180 - 240 mm the twin system and for strand diameters of approx. 270 - 406 mm the single system is used.
  • the production output of such a multi-strand caster can be achieved through the existing transport systems for the melt can be limited. Basically it is therefore possible that the distributor from a pan vessel with a maximum capacity of 300 t is fed.
  • the continuous casting device for liquid metals, especially for liquid steel, with several parallel, side-by-side strand wires, each through Continuous casting molds and subsequent support roller stand with straight and / or curved course is designed in terms of device technology in such a way that the support roller frame of the unitary continuous casting device either from each three profile roller tracks arranged next to each other and each profile roller track assigned continuous casting mold is formed or from only two profile roller tracks and an asymmetrically constructed continuous casting mold, each of which Profile roller tracks is assigned.
  • This can result in temperature-related distances between the strands are easily maintained, both strands with small Diameter in pairs as well as a medium strand with a larger diameter the system can be cast and only the lifting table unit has to be adjusted.
  • two profile roller tracks are symmetrical or are arranged asymmetrically to a central profile roller track.
  • twin system can be used.
  • the size of the multiple-strand caster can then be determined by that for a given number of casting strands the proportion of production of the individual strand diameters on the annual production as a guideline for the Interpretation of the number of strands is used.
  • the advantage is considering one changing market demand of selected strand diameters, the quantitative Focus on.
  • the process for the continuous casting of liquid metal, in particular liquid Steel, is executed in multi-strand continuous casting devices 1.
  • On every Casting line 2 eliminates a continuous casting mold, a lifting table and an oscillation device, which are designated together with 3.
  • This turns a customer-specific Row of diameters 4 for relatively small strand diameters 5 each in twin molds 6 and relatively larger strand diameters 7 in single molds 8 within the uniform Cast continuous casting device 1.
  • the twin system is used for strand diameters of approx. 180 - 240 mm and the single system is used for strand diameters of approx. 270 - 406 mm.
  • the uniform continuous casting device 1 consists (Fig. 1) of a support roller frame 11 and forms three next to each other for a relatively large strand diameter 7, parallel profile roller tracks 12, with the middle profile roller track 12 is hidden by the casting strand.
  • Each profile roller track 12 is one Continuous casting mold assigned.
  • FIG. 3 it is an asymmetrical structure Continuous casting mold within the casting line 2.
  • the profile roller tracks 12 which are arranged symmetrically to a central profile roller track 12 in FIG. 2, 3 the profile roller track 12 is arranged correspondingly asymmetrically.
  • Fig. 4 the corresponding single mold 8 (hatched) is the corresponding Assigned to twin mold 6 (darker hatching).
  • the usual ones can be seen Diameters 180, 220 and 240 mm according to the invention with higher casting performance produce what is immediately apparent from Fig. 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

Process for the continuous casting of liquid metal, especially liquid steel, comprises casting strands of relatively small diameter in twin molds and strands of relatively large diameter in double molds within a uniform continuous casting device (1) from a customer-specific diameter row. An Independent claim is also included for a continuous casting device for liquid metals, especially liquid steel, comprising: a support roll stand (11) of a uniform continuous casting device formed either from three profile roller strips (12) with a mold assigned to each strip or from two profile roller strips; and an asymmetric mold assigned to one of the strips.

Description

Die Erfindung betrifft ein Verfahren und eine Stranggießvorrichtung zum Rundstranggießen von flüssigem Metall, insbesondere von flüssigem Stahl, in mehrsträngigen Stranggießvorrichtungen, wobei jeweils auf eine Stranggießkokille ein Stützrollengerüst folgt und mehrere Strangadern untereinander parallel verlaufen und wobei die Stranggießkokille aus einem vorgeschalteten Verteilergefäß mit Schmelze gespeist wird.The invention relates to a method and a continuous casting device for continuous casting of liquid metal, especially liquid steel, in multi-strand Continuous casting devices, with a supporting roller frame on each continuous casting mold follows and several strand veins run parallel to each other and the Continuous casting mold fed with melt from an upstream distributor vessel becomes.

Derartige Mehrstranggießmaschinen werden für 2, 3, 4, 5, 6 oder mehr Stränge gebaut und betrieben. Jeder Stranggießkokille ist eine Oszillationseinrichtung mit einem Hubtisch zugeordnet. Einer Mehrzahl von Stranggießkokillen ist ferner ein Verteilergefäß vorgeschaltet. Es können auch mehrere Verteilergefäße für Gruppen von Stranggießkokillen zugeteilt sein. Die Verteilergefäße werden von einer Gießpfanne entsprechend großen Fassungsvermögens gespeist. Jedoch treten dabei schon Temperaturunterschiede in der Schmelze bei außen liegenden Gießsträngen und / oder bei mehreren Verteilergefäßen auf. Man ist daher bestrebt, die Anzahl der Strangadern zu begrenzen. Diesem Bestreben steht jedoch eine für Mehrstranggießanlagen vorgesehene Produktionsleistung entgegen. Hinzu kommen unterschiedlich große Strangdurchmesser, die sich aus wechselnden Marktforderungen ergeben.Such multi-strand casting machines are built for 2, 3, 4, 5, 6 or more strands and operated. Each continuous casting mold is an oscillation device with one Assigned lifting table. A plurality of continuous casting molds is also a distribution vessel upstream. There can also be several distribution vessels for groups of Continuous casting molds are assigned. The distribution vessels are from a ladle fed according to large capacity. However, it already occurs Temperature differences in the melt in the case of external casting strands and / or with several distribution vessels. One therefore strives to increase the number of Limit strand veins. However, this endeavor stands for multi-strand casting plants planned production output. In addition there are different large strand diameters resulting from changing market demands result.

Den bekannten Mehrstranggießanlagen haften daher Nachteile einer mangelhaften Koordinierung der Produktionsleistung und der Durchmesserverteilung mit der Anzahl der Stränge an. Ebenso sind die Temperaturführung, die Verteilergrößen, die Anzahl der Hubtische mit Oszillationseinrichtungen und Stranggießkokillen besser aufeinander abzustimmen.The known multi-strand caster therefore have disadvantages of an inadequate one Coordination of production performance and diameter distribution with the number of strands. Likewise, the temperature control, the distributor sizes, the Better number of lifting tables with oscillation devices and continuous casting molds to coordinate with each other.

Der Erfindung liegt die Aufgabe zugrunde, die Produktionsleistung einer Mehrstranggießanlage in Abhängigkeit der Durchmesserverteilung auf die Anzahl von Gießlinien abzustimmen.The invention has for its object the production performance of a multi-strand caster depending on the diameter distribution on the number of casting lines vote.

Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, dass aus einer kundenspezifischen Durchmesserreihe relativ kleine Strangdurchmesser jeweils in Twin-Kokillen und relativ größere Strangdurchmesser jeweils in Single-Kokillen innerhalb einer einheitlichen Stranggießvorrichtung vergossen werden. Dadurch ist eine hohe Produktionsleistung mit einer kleinstmöglichen Anzahl von Gießlinien möglich, d.h. die relative Produktionsleistung wird erheblich gesteigert. Dabei kann eine höhere Produktionsleistung mit einer geringeren Anzahl von Strangadern erzielt werden.The object is achieved according to the invention in that a customer-specific Row of diameters relatively small strand diameters, each in twin molds and relatively larger strand diameters in single molds within be cast in a uniform continuous casting device. This makes it high Production output possible with the smallest possible number of casting lines, i.e. the relative production output is increased considerably. It can be a higher Production output can be achieved with a smaller number of strand wires.

Gemessen an den bekannten Verfahrensabläufen wird weiter vorgeschlagen, dass mehrere unabhängige Mehrstranggießanlagen mit einer summierten Produktionsleistung in die einheitliche Stranggießvorrichtung mit virtueller Stranganzahl umgerechnet werden und dass für die summierte Produktionsleistung die Anzahl der Stränge auf eine volle Zahl reduziert wird. Dabei kann eine konventionelle Mehrstranggießanlage mit z.B. sechs Strängen durch vier Stränge bei gleich großer Produktionsleistung ersetzt werden.Based on the known procedures, it is further proposed that several independent multi-strand casting plants with a total production output converted into the uniform continuous caster with a virtual number of strands and that for the total production output the number of strands is reduced to a full number. A conventional multi-strand caster can be used with e.g. six strands through four strands with the same production output be replaced.

Für kleinere Strangdurchmesser wird das Twin-System eingesetzt und für größere Strangdurchmesser das Single-System, so dass die Gießleistung der Gießlinie, auf der im Twin-System gegossen wird, jeweils bestehend aus einem Hubtisch, einer Stranggießkokille und einer Oszillationseinrichtung, sich verdoppelt.The twin system is used for smaller strand diameters and for larger ones Strand diameter the single system, so the casting performance of the casting line, on which is cast in the twin system, each consisting of a lifting table, one Continuous casting mold and an oscillation device, doubled.

Eine vorteilhafte Verteilung der Gesamt-Produktionsleistung aus Strängen mit unterschiedlichen Durchmessern wird z.B. derart vorgenommen, dass für Strangdurchmesser von ca. 180 - 240 mm das Twin-System und für Strangdurchmesser von ca. 270 - 406 mm das Single-System eingesetzt wird.An advantageous distribution of the total production output from strands with different Diameters is e.g. made such that for strand diameter from 180 - 240 mm the twin system and for strand diameters of approx. 270 - 406 mm the single system is used.

Die Produktionsleistung kann an einer solchen Mehrfachstranggießanlage durch die vorhandenen Transportanlagen für die Schmelze begrenzt werden. Im Grunde ist daher möglich, dass der Verteiler aus einem Pfannengefäß mit maximal 300 t Fassungsvermögen gespeist wird.The production output of such a multi-strand caster can be achieved through the existing transport systems for the melt can be limited. Basically it is therefore possible that the distributor from a pan vessel with a maximum capacity of 300 t is fed.

Die Stranggießvorrichtung für flüssige Metalle, insbesondere für flüssigen Stahl, mit mehreren parallelen, nebeneinander angeordneten Strangadern, die jeweils durch Stranggießkokillen und anschließendem Stützrollengerüst mit geradem und / oder gebogenem Verlauf gebildet sind, ist vorrichtungstechnisch dahingehend gestaltet, dass das Stützrollengerüst der einheitlichen Stranggießvorrichtung entweder aus jeweils drei nebeneinander angeordneten Profilrollen-Bahnen und jeweils jeder Profilrollen-Bahn zugeordneter Stranggießkokille gebildet ist oder aus nur zwei Profilrollen-Bahnen und einer asymmetrisch aufgebauten Stranggießkokille, die jeweils einer der Profilrollen-Bahnen zugeordnet ist. Dadurch können temperaturbedingte Abstände zwischen den Strängen leicht eingehalten werden, wobei sowohl Stränge mit kleinem Durchmesser in Paaren als auch ein mittlerer Strang mit größerem Durchmesser auf der Anlage gegossen werden kann und nur die Hubtischeinheit anzupassen ist. The continuous casting device for liquid metals, especially for liquid steel, with several parallel, side-by-side strand wires, each through Continuous casting molds and subsequent support roller stand with straight and / or curved course is designed in terms of device technology in such a way that the support roller frame of the unitary continuous casting device either from each three profile roller tracks arranged next to each other and each profile roller track assigned continuous casting mold is formed or from only two profile roller tracks and an asymmetrically constructed continuous casting mold, each of which Profile roller tracks is assigned. This can result in temperature-related distances between the strands are easily maintained, both strands with small Diameter in pairs as well as a medium strand with a larger diameter the system can be cast and only the lifting table unit has to be adjusted.

Nach weiteren Merkmalen ist vorgesehen, dass zwei Profilrollen-Bahnen symmetrisch oder unsymmetrisch zu einer mittleren Profilrollen-Bahn angeordnet sind. Dabei kann das Twin-System eingesetzt werden.According to further features, it is provided that two profile roller tracks are symmetrical or are arranged asymmetrically to a central profile roller track. there the twin system can be used.

Die Größe der Mehrfachstranggießanlage kann sodann dahingehend bestimmt werden, dass bei einer vorgegebenen Anzahl der Gießstränge der Anteil der Produktion der einzelnen Strangdurchmesser an der Jahresproduktion als Richtwert für die Auslegung der Anzahl der Stränge dient. Der Vorteil ist die Berücksichtigung einer wechselnden Marktforderung von ausgewählten Strangdurchmessern, die mengenmäßige Schwerpunkte bilden.The size of the multiple-strand caster can then be determined by that for a given number of casting strands the proportion of production of the individual strand diameters on the annual production as a guideline for the Interpretation of the number of strands is used. The advantage is considering one changing market demand of selected strand diameters, the quantitative Focus on.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, die nachstehend näher erläutert werden.In the drawing, embodiments of the invention are shown, the following are explained in more detail.

Es zeigen:

Fig. 1
mehrere Gießlinien für relativ dicke Stränge, die jeweils in einer mittigen Profilrollen-Bahn geführt sind,
Fig. 2
mehrere Gießlinien für relativ dünne Stränge, die jeweils in außen liegenden Profilrollen-Bahnen geführt werden,
Fig. 3
mehrere Gießlinien für relativ dünne Stränge und mit einer asymmetrisch aufgebauten Stranggießkokille,
Fig. 4
ein Diagramm der Gießstrangproduktions-Leistung über der Durchmesserverteilung mit den bekannten und den erfindungsgemäßen Produktionsleistungen und
Fig. 5
die schematische Zuordnung der einzelnen Durchmesser zu Twin- oder Single-Systeme der StranggieĂźkokillen.
Show it:
Fig. 1
several casting lines for relatively thick strands, each of which is guided in a central profile roller track,
Fig. 2
several casting lines for relatively thin strands, each of which is guided in external profile roller tracks,
Fig. 3
several casting lines for relatively thin strands and with an asymmetrical continuous casting mold,
Fig. 4
a diagram of the casting strand production performance over the diameter distribution with the known and the inventive production performance and
Fig. 5
the schematic assignment of the individual diameters to twin or single systems of the continuous casting molds.

Das Verfahren zum Rundstranggießen von flüssigem Metall, insbesondere von flüssigem Stahl, wird in mehrsträngigen Stranggießvorrichtungen 1 ausgeführt. Auf jede Gießlinie 2 entfällt eine Stranggießkokille, ein Hubtisch und eine Oszillationseinrichtung, die gemeinsam mit 3 bezeichnet sind. Dabei wird aus einer kundenspezifischen Durchmesserreihe 4 für relativ kleine Strangdurchmesser 5 jeweils in Twin-Kokillen 6 und relativ größeren Strangdurchmessern 7 in Single-Kokillen 8 innerhalb der einheitlichen Stranggießvorrichtung 1 vergossen.The process for the continuous casting of liquid metal, in particular liquid Steel, is executed in multi-strand continuous casting devices 1. On every Casting line 2 eliminates a continuous casting mold, a lifting table and an oscillation device, which are designated together with 3. This turns a customer-specific Row of diameters 4 for relatively small strand diameters 5 each in twin molds 6 and relatively larger strand diameters 7 in single molds 8 within the uniform Cast continuous casting device 1.

Die in der Fig. 4 wiedergegebenen, den einzelnen Durchmessern zugeordneten Gießstränge sind konventionell nur einzeln vergossen, woraus sich die niedrige Gießleistung in t / min ergibt. Eine solche Anzahl mehrerer unabhängiger Mehrstranganlagen 9 mit einer summierten Produktionsleistung kann in die einheitliche Stranggießvorrichtung 1 mit einer virtuellen Stranganzahl 10 umgerechnet werden und dann wird für die summierte Produktionsleistung die Anzahl der Stränge auf eine reale, volle Anzahl reduziert.4, assigned to the individual diameters Casting strands are conventionally only cast individually, which results in the low Casting performance in t / min results. Such a number of several independent multi-line systems 9 with a total production output can be in the uniform Continuous casting device 1 can be converted with a virtual number of strands 10 and then for the total production output the number of strands is reduced to one real, full number reduced.

In Fig. 5 ist ein Beispiel für die Einteilung von Strängen relativ kleiner oder größerer Durchmesser gezeigt: Für Strangdurchmesser von ca. 180 - 240 mm wird das Twin-System und für Strangdurchmesser von ca. 270 - 406 mm das Single-System eingesetzt.5 shows an example of the division of strands relatively smaller or larger Diameter shown: The twin system is used for strand diameters of approx. 180 - 240 mm and the single system is used for strand diameters of approx. 270 - 406 mm.

Die einheitliche StranggieĂźvorrichtung 1 besteht jeweils (Fig. 1) aus einem StĂĽtzrollengerĂĽst 11 und bildet fĂĽr einen relativ groĂźen Strangdurchmesser 7 jeweils drei nebeneinander, parallel verlaufende Profilrollen-Bahnen 12, wobei die mittlere Profilrollen-Bahn 12 durch den GieĂźstrang verdeckt ist. Jeder Profilrollen-Bahn 12 ist eine StranggieĂźkokille zugeordnet.The uniform continuous casting device 1 consists (Fig. 1) of a support roller frame 11 and forms three next to each other for a relatively large strand diameter 7, parallel profile roller tracks 12, with the middle profile roller track 12 is hidden by the casting strand. Each profile roller track 12 is one Continuous casting mold assigned.

Dasselbe System ist (Fig. 2) fĂĽr relativ kleinere Strangdurchmesser 5 mit auĂźen liegenden Profilrollen-Bahnen 12 angewendet. The same system is (Fig. 2) for relatively smaller strand diameter 5 with the outside Profile roller tracks 12 applied.

FĂĽr den Sonderfall der Fig. 3 handelt es sich um eine asymmetrisch aufgebaute StranggieĂźkokille innerhalb der GieĂźlinie 2. GegenĂĽber den zwei Profilrollen-Bahnen 12, die in Fig. 2 symmetrisch zu einer mittleren Profilrollen-Bahn 12 angeordnet sind, ist in Fig. 3 die Profilrollen-Bahn 12 entsprechend asymmetrisch angeordnet.For the special case of FIG. 3, it is an asymmetrical structure Continuous casting mold within the casting line 2. Opposite the two profile roller tracks 12, which are arranged symmetrically to a central profile roller track 12 in FIG. 2, 3 the profile roller track 12 is arranged correspondingly asymmetrically.

In Fig. 4 ist den entsprechenden Single-Kokillen 8 (heller schraffiert) die entsprechende Twin-Kokille 6 (dunkler schraffiert) zugeordnet. Es sind ersichtlich die gängigen Durchmesser 180, 220 und 240 mm gemäß der Erfindung mit höherer Gießleistung herzustellen, was aus Fig. 5 unmittelbar ersichtlich ist. In Fig. 4 the corresponding single mold 8 (hatched) is the corresponding Assigned to twin mold 6 (darker hatching). The usual ones can be seen Diameters 180, 220 and 240 mm according to the invention with higher casting performance produce what is immediately apparent from Fig. 5.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
(einheitliche) StranggieĂźvorrichtung(Uniform) continuous casting device
22
GieĂźliniecasting line
33
StranggieĂźkokille, Hubtisch, OszillationseinrichtungContinuous casting mold, lifting table, oscillation device
44
DurchmesserreiheDiameter series
55
relativ kleinerer Strangdurchmesserrelatively smaller strand diameter
66
Twin-KokilleTwin-mold
77
relativ größerer Strangdurchmesserrelatively larger strand diameter
88th
Single-KokilleSingle-mold
99
konventionelle MehrstranggieĂźanlageconventional multi-strand caster
1010
virtuelle Stranganzahlvirtual number of strands
1111
StĂĽtzrollengerĂĽstSupporting roll framework
1212
Profilrollen-BahnProfile roller track

Claims (8)

Verfahren zum Rundstranggießen von flüssigem Metall, insbesondere von flüssigem Stahl, in mehrsträngigen Stranggießvorrichtungen, wobei jeweils auf eine Stranggießkokille ein Stützrollengerüst folgt und mehrere Strangadern untereinander parallel verlaufen und wobei die Stranggießkokille aus einem vorgeschalteten Verteilergefäß mit Schmelze gespeist wird,
dadurch gekennzeichnet, dass aus einer kundenspezifischen Durchmesserreihe (4) relativ kleine Strangdurchmesser (5) jeweils in Twin-Kokillen (6) und relativ größere Strangdurchmesser (7) jeweils in Single-Kokillen (8) innerhalb einer einheitlichen Stranggießvorrichtung (1) vergossen werden.
Process for the continuous casting of liquid metal, in particular liquid steel, in multi-strand continuous casting apparatuses, a supporting roller stand following each continuous casting mold and several strand cores running parallel to one another and the continuous casting mold being fed with melt from an upstream distributor vessel,
characterized in that from a customer-specific row of diameters (4) relatively small strand diameters (5) are cast in twin molds (6) and relatively larger strand diameters (7) in single molds (8) within a uniform continuous casting device (1).
Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass mehrere unabhängige Mehrstranggießanlagen (9) mit einer summierten Produktionsleistung in die einheitliche Stranggießvorrichtung (1) mit virtueller Stranganzahl (10) umgerechnet werden und dass für die summierte Produktionsleistung die Anzahl der Stränge auf eine volle Anzahl reduziert wird.
Method according to claim 1,
characterized in that several independent multi-strand casting plants (9) with a total production output are converted into the uniform continuous casting apparatus (1) with a virtual number of lines (10) and that the number of strands is reduced to a full number for the total production output.
Verfahren nach Anspruch 2,
dadurch gekennzeichnet, dass für kleinere Strangdurchmesser (5) das Twin-System und für größere Strangdurchmesser (7) das Single-System eingesetzt wird.
Method according to claim 2,
characterized in that the twin system is used for smaller strand diameters (5) and the single system for larger strand diameters (7).
Verfahren nach einem der AnsprĂĽche 1 bis 3,
dadurch gekennzeichnet, dass fĂĽr Strangdurchmesser (5) von ca. 180 - 240 mm das Twin-System und fĂĽr Strangdurchmesser (7) von ca. 270 -406 mm das Single-System eingesetzt wird.
Method according to one of claims 1 to 3,
characterized in that the twin system is used for strand diameters (5) of approximately 180-240 mm and the single system for strand diameters (7) of approximately 270-406 mm.
Verfahren nach einem der AnsprĂĽche 1 bis 4,
dadurch gekennzeichnet, dass der Verteiler aus einem Pfannengefäß mit maximal 300 t Fassungsvermögen gespeist wird.
Method according to one of claims 1 to 4,
characterized in that the distributor is fed from a pan vessel with a maximum capacity of 300 t.
StranggieĂźvorrichtung fĂĽr flĂĽssige Metalle, insbesondere fĂĽr flĂĽssigen Stahl, mit mehreren parallelen, nebeneinander angeordneten Strangadern, die jeweils durch StranggieĂźkokillen und anschlieĂźendem StĂĽtzrollengerĂĽst mit geradem und / oder gebogenem Verlauf gebildet sind,
dadurch gekennzeichnet, dass das StĂĽtzrollengerĂĽst (11) der einheitlichen StranggieĂźvorrichtung (1) entweder aus jeweils drei nebeneinander angeordneten Profilrollen-Bahnen (12) und jeweils jeder Profilrollen-Bahn (12) zugeordneter StranggieĂźkokille gebildet ist oder aus nur zwei Profilrollen-Bahnen (12) und einer asymmetrisch aufgebauten StranggieĂźkokille, die jeweils einer der Profilrollen-Bahnen (12) zugeordnet ist.
Continuous casting device for liquid metals, in particular for liquid steel, with a plurality of parallel strand wires arranged next to one another, each of which is formed by continuous casting molds and a subsequent support roller frame with a straight and / or curved course,
characterized in that the support roller stand (11) of the unitary continuous casting device (1) is either formed from three profile roller tracks (12) arranged next to one another and continuous casting molds associated with each profile roller track (12), or from only two profile roller tracks (12) and an asymmetrically constructed continuous casting mold, each of which is assigned to one of the profile roller tracks (12).
StranggieĂźvorrichtung nach Anspruch 6,
dadurch gekennzeichnet, dass zwei Profilrollen-Bahnen (12) symmetrisch oder asymmetrisch zu einer mittleren Profilrollen-Bahn (12) angeordnet sind.
Continuous casting apparatus according to claim 6,
characterized in that two profile roller tracks (12) are arranged symmetrically or asymmetrically to a central profile roller track (12).
StranggieĂźvorrichtung nach einem der AnsprĂĽche 6 oder 7,
dadurch gekennzeichnet, dass bei einer vorgegebenen Anzahl der Gießstränge der Anteil der Produktion der einzelnen Strangdurchmesser (5; 7) an der Jahresproduktion als Richtwert für die Auslegung der Anzahl der Stränge dient.
Continuous casting apparatus according to one of claims 6 or 7,
characterized in that, given a predetermined number of casting strands, the proportion of the production of the individual strand diameters (5; 7) in the annual production serves as a guideline for the design of the number of strands.
EP03005287A 2002-05-22 2003-03-11 Method and apparatus for continuous casting of round billets from molten metal, especially from molten steel Expired - Lifetime EP1364729B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10223015A DE10223015B3 (en) 2002-05-22 2002-05-22 Method and continuous casting device for the continuous casting of liquid metal, in particular liquid steel
DE10223015 2002-05-22

Publications (3)

Publication Number Publication Date
EP1364729A2 true EP1364729A2 (en) 2003-11-26
EP1364729A3 EP1364729A3 (en) 2005-02-16
EP1364729B1 EP1364729B1 (en) 2008-06-25

Family

ID=29285666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03005287A Expired - Lifetime EP1364729B1 (en) 2002-05-22 2003-03-11 Method and apparatus for continuous casting of round billets from molten metal, especially from molten steel

Country Status (3)

Country Link
EP (1) EP1364729B1 (en)
AT (1) ATE399069T1 (en)
DE (2) DE10223015B3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190210099A1 (en) * 2017-10-05 2019-07-11 Emirates Steel Industries PJSC Method for continuous casting of two or more long products using a single continuous casting strand

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036284A (en) * 1975-03-19 1977-07-19 Rudolf Hoffmann Continuous casting apparatus for slabs
FR2453696A1 (en) * 1978-11-10 1980-11-07 Clesid Sa Multi-track continuous casting plant - where ladle is located above one tundish employed to fill two lower tundishes mounted above long row of moulds
EP0149447A2 (en) * 1983-12-29 1985-07-24 VOEST-ALPINE Aktiengesellschaft Method of controlling the level in continuous casting moulds of a multiple-strand continuous casting plant, and arrangement for carrying out the method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809446A1 (en) * 1998-03-05 1999-09-09 Schloemann Siemag Ag Distribution trough trolleys

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036284A (en) * 1975-03-19 1977-07-19 Rudolf Hoffmann Continuous casting apparatus for slabs
FR2453696A1 (en) * 1978-11-10 1980-11-07 Clesid Sa Multi-track continuous casting plant - where ladle is located above one tundish employed to fill two lower tundishes mounted above long row of moulds
EP0149447A2 (en) * 1983-12-29 1985-07-24 VOEST-ALPINE Aktiengesellschaft Method of controlling the level in continuous casting moulds of a multiple-strand continuous casting plant, and arrangement for carrying out the method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BRODSKII S S ET AL: "METALLURGY OF STEELS AND FERROALLOYS SIMULTANEOUS CASTING OF SMALL AND LARGE INGOTS ON SIX-STRAND CONTINUOUS-CASTING MACHINE" STEEL IN TRANSLATION, THE INSTITUTE OF MATERIALS, LONDON, GB, Bd. 29, Nr. 7, 1999, Seiten 25-30, XP000976452 ISSN: 0967-0912 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190210099A1 (en) * 2017-10-05 2019-07-11 Emirates Steel Industries PJSC Method for continuous casting of two or more long products using a single continuous casting strand

Also Published As

Publication number Publication date
ATE399069T1 (en) 2008-07-15
DE50310027D1 (en) 2008-08-07
EP1364729B1 (en) 2008-06-25
EP1364729A3 (en) 2005-02-16
DE10223015B3 (en) 2004-01-08

Similar Documents

Publication Publication Date Title
DE69618414T2 (en) Process for the continuous production in a line of a sheet metal strip rolled from stainless steel with an improved surface condition
EP1519798B1 (en) Method and casting roller plant for the semi-endless or endless rolling by casting of a metal in particular a steel strip which may be transversely separated as required after solidification
EP0061441B1 (en) Apparatus for the hot rolling of striplike or tabular rolling stock
EP0266564A2 (en) Strip casting installation with a following multiple stand continuous rolling mill
DE69222504T2 (en) METHOD FOR ROLLING SOFT METALS
EP0834364A2 (en) Method and device for high-speed continuous casting plants with reduction of the width during solidification
EP1324845B1 (en) Method for operating an installation of a primary industry
DE69228199T2 (en) METHOD FOR COLD ROLLING METAL STRIP MATERIAL
DE4009861C2 (en) Process for the production of hot-rolled bar material such as fine steel or wire and plant for carrying out the process
EP0734295B2 (en) Process for producing thin slabs
DE10357363B4 (en) Method and plant for casting and immediately subsequent rolling of casting strands of metal, in particular of steel materials, preferably thin strands
EP0815498B1 (en) Process controlling method and device
DE102015210863A1 (en) Casting-rolling plant and method for its operation
DE2559038A1 (en) METHOD AND DEVICE FOR CONTINUOUS STEEL CASTING
WO2009090076A1 (en) Driving-straightening system for continuous casting plants
DE3039101A1 (en) Continuous rolling mill train for small stainless steel rods etc. - where finishing zone contains row of double mills which are each followed by cooling appts.
EP1364729A2 (en) Method and apparatus for continuous casting of round billets from molten metal, especially from molten steel
EP0917922A1 (en) Process and plant for continuous casting slabs
EP3623074A1 (en) Method for the preparation of long products which are close to final dimensions and a continuous casting and rolling installation for carrying out the method
EP0741619B1 (en) Process for guiding rectangular strands in a guide system
DE3036873C2 (en) Process for treating a strand emerging from a casting wheel
EP0845310B1 (en) Wire cooling
DE19913498C1 (en) Process for producing a hot strip and hot strip line for carrying out the method
EP0741618B1 (en) Process for guiding a rectangular strand
DE3112947C2 (en) Process and system for continuous arc casting

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030311

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

RIC1 Information provided on ipc code assigned before grant

Ipc: 7B 22D 11/04 B

Ipc: 7B 22D 11/14 A

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

17Q First examination report despatched

Effective date: 20070529

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 50310027

Country of ref document: DE

Date of ref document: 20080807

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081006

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081125

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080925

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: SIEMENS VAI METALS TECHNOLOGIES GMBH & CO

Effective date: 20090323

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080925

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SMS SIEMAG AG

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

BERE Be: lapsed

Owner name: SMS DEMAG AG

Effective date: 20090331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091123

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20100311

Year of fee payment: 8

Ref country code: GB

Payment date: 20100322

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100324

Year of fee payment: 8

Ref country code: IT

Payment date: 20100326

Year of fee payment: 8

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080926

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20100916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20110311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50310027

Country of ref document: DE

Effective date: 20111001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110311

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110311