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EP2025432B1 - Method for creating steel long products through strand casting and rolling - Google Patents

Method for creating steel long products through strand casting and rolling Download PDF

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Publication number
EP2025432B1
EP2025432B1 EP07014841.6A EP07014841A EP2025432B1 EP 2025432 B1 EP2025432 B1 EP 2025432B1 EP 07014841 A EP07014841 A EP 07014841A EP 2025432 B1 EP2025432 B1 EP 2025432B1
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EP
European Patent Office
Prior art keywords
strand
mould
rolling
continuous casting
cast
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EP07014841.6A
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German (de)
French (fr)
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EP2025432A1 (en
EP2025432B2 (en
Inventor
Franz Dr. Kawa
Adalbert Roehrig
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SMS Concast AG
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Concast AG
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Application filed by Concast AG filed Critical Concast AG
Priority to EP07014841.6A priority Critical patent/EP2025432B2/en
Priority to RU2010107172/02A priority patent/RU2484921C2/en
Priority to BRPI0814203A priority patent/BRPI0814203A8/en
Priority to CA2694755A priority patent/CA2694755C/en
Priority to CN200880100820.0A priority patent/CN102105244B/en
Priority to JP2010517302A priority patent/JP2011504141A/en
Priority to US12/670,445 priority patent/US20100276111A1/en
Priority to PCT/EP2008/005864 priority patent/WO2009015782A2/en
Priority to KR1020107000773A priority patent/KR20100038195A/en
Publication of EP2025432A1 publication Critical patent/EP2025432A1/en
Priority to ZA2010/00216A priority patent/ZA201000216B/en
Priority to JP2013166381A priority patent/JP5632942B2/en
Publication of EP2025432B1 publication Critical patent/EP2025432B1/en
Publication of EP2025432B2 publication Critical patent/EP2025432B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0406—Moulds with special profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling

Definitions

  • the minimum intake speed at the inlet of the rolling train should under no circumstances be less than 4.2 m / min in order not to thermally overload the rollers due to the long contact time with the rolling stock.
  • the billet at the inlet of the mill train should have a suitable temperature for rolling both at the surface and in the core (1150-1250 ° C).
  • the surface temperature should be distributed as homogeneously as possible.
  • the present invention has for its object to propose a method that allows a simpler plant configuration and a more cost-effective operation.
  • the process for the production of steel long products in which the billets and blooms produced in the continuous casting mold are fed directly - without additional heating - a rolling train and rolled there to long products, allows a simple system configuration and a cost-effective operation.
  • a sliding closure 15 is provided for the purpose of accurate inflow control of the molten steel to be poured into the mold.
  • a regulation of the fill level of the melt in the mold 3 is carried out as a function of the inlet speed in the first stand (so-called master-slave operation), for a control device 13 and a level gauge 14 are provided in the mold 3. This regulation is intended to achieve an approximately constant filling level in the mold.
  • a refractory dip tube attached to the inflow control element and protruding into the mold is advantageous, so that the bath surface in the mold is as smooth as possible.

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

Description

Die Erfindung betrifft ein Verfahren zur Erzeugung von Stahl-Langprodukten gemäss dem Oberbegriff des Anspruches 1.The invention relates to a method for producing long-steel products according to the preamble of claim 1.

Es ist bekannt, den beim Stranggiessen erzeugten Giessstrang zu einzelnen Knüppeln oder Vorblöcken zu schneiden, auf Raumtemperatur abzukühlen und dann in einem Walzwerk wiedererwärmt zu Stahlstab, Draht und anderen Stahl-Langprodukten zu verwalzen.It is known to cut the cast strand produced during continuous casting into individual billets or billets, to cool it to room temperature and then reheated in a rolling mill to roll steel rod, wire and other long steel products.

Bekannt ist auch die gegossenen Knüppeln heiss (ca. 600°C) in den Walzwerksofen zwecks Nacherwärmung vor dem anschliessenden Verwalzen einzusetzen.Also known is the cast billets hot (about 600 ° C) in the rolling mill furnace for the purpose of reheating before the subsequent rolling use.

Um Energie zu sparen und das Ausbringen zu erhöhen, wird seit langem nach Lösungen gesucht, wie man eine Stranggiessanlage und eine Walzstrasse, vorzugsweise eine Giessader und eine Walzader, direkt verbinden könnte.In order to save energy and increase the output, solutions have long been sought, as one could directly connect a continuous casting and a rolling mill, preferably a casting ladder and a Walzader.

Dabei stellen die unterschiedlichen Durchsätze, Geschwindigkeiten und Temperaturen sowie Temperaturverteilungen (Strangguss-Oberfläche/Zentrum) am Auslauf der Giessanlage und am Einlauf der Walzstrasse die Hauptprobleme dar.The different flow rates, speeds and temperatures as well as temperature distributions (continuous casting surface / center) at the outlet of the casting plant and at the inlet of the rolling train represent the main problems.

Die minimale Einzugsgeschwindigkeit am Einlauf der Walzstrasse sollte keinesfalls unter 4.2 m/min liegen um die Walzen infolge der langen Kontaktzeit mit dem Walzgut nicht thermisch zu überlasten. Ausserdem soll der Knüppel am Einlauf der Walzstrasse eine für das Walzen geeignete Temperatur sowohl an der Oberfläche als auch im Kern (1150-1250°C) aufweisen. Insbesondere sollte die Oberflächentemperatur möglichst homogen verteilt sein.The minimum intake speed at the inlet of the rolling train should under no circumstances be less than 4.2 m / min in order not to thermally overload the rollers due to the long contact time with the rolling stock. In addition, the billet at the inlet of the mill train should have a suitable temperature for rolling both at the surface and in the core (1150-1250 ° C). In particular, the surface temperature should be distributed as homogeneously as possible.

Aus der EP-B1-0 761 327 ist ein Verfahren bekannt, bei dem der in einer Stranggiessmaschine erzeugte Giessstrang einer Temperaturhalte- und Vorerwärmungsvorrichtung zugeführt wird, wonach er in einer weiteren Temperaturausgleichs- und Schnellaufheizvorrichtung aufgeheizt wird, bevor er in die Walzstrasse eingeführt wird. Nachteilig dabei sind die relativ hohen Kosten für die Installation und für den Betrieb der Nacherwärmungseinrichtung.From the EP-B1-0 761 327 For example, a method is known in which the casting strand produced in a continuous casting machine is fed to a temperature-maintaining and preheating device, after which it is heated in a further temperature compensation and rapid heating device before it is introduced into the rolling train. Disadvantages are the relatively high costs for the installation and for the operation of the reheating device.

In der Druckschrift JP-A-01048609 ist ein Verfahren zur Steuerung der Geschwindigkeit eines Stranges geoffenbart, bei dem der gegossene Strang direkt in ein Walzwerk überführt wird. Die Geschwindigkeit bei der Stranggiessmaschine und der Walzstrasse wird gesteuert, indem bspw. die Walzgeschwindigkeit korrigiert wird, wenn die aktuelle Auszugsgeschwindigkeit des Stranges ändert. Nachteilig hierbei ist, dass die Walzgeschwindigkeit nicht erst geändert werden kann, wenn sich die Auszugsgeschwindigkeit bei der Stranggiessmaschine ändert.In the publication JP-A-01048609 there is disclosed a method of controlling the speed of a strand by transferring the cast strand directly to a rolling mill. The speed in the continuous casting machine and the rolling train is controlled by, for example, the rolling speed is corrected when the current pull-out speed of the strand changes. The disadvantage here is that the rolling speed can not be changed until the pull-out speed changes in the continuous casting machine.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren vorzuschlagen, das eine einfachere Anlagekonfiguration und einen kostengünstigeren Betrieb ermöglicht.The present invention has for its object to propose a method that allows a simpler plant configuration and a more cost-effective operation.

Diese Aufgabe wird erfindungsgemäss durch ein Verfahren mit den Merkmalen des Anspruches 1 gelöst.This object is achieved according to the invention by a method having the features of claim 1.

Bevorzugte Weitergestaltungen des erfindungsgemässen Verfahrens bilden den Gegenstand der abhängigen Ansprüche.Preferred refinements of the inventive method form the subject of the dependent claims.

Es wurde überraschenderweise festgestellt, dass bei Verwendung von Stranggiesskokillen, wie sie aus der EP-B2-0 498 296 bekannt sind, die durch Schnell-Stranggiessen erzeugten Knüppel- und Vorblockstränge ohne zusätzliches Aufheizen direkt einer Walzstrasse zugeführt werden können. Der Formhohlraum dieser Stranggiesskokillen weist am eingiessseitigen Ende der Kokille entlang einer Umfangslinie seines Querschnittes mindestens zwei Umfangsabschnitte auf, die je eine Querschnittsvergrösserung des Formhohlraumes gegenüber den entsprechenden Umfangsabschnitten des Formhohlraumquerschnittes am strangaustrittseitigen Ende der Kokille in der Form von Ausbuchtungen begrenzen. Die Bogenhöhen der Ausbuchtungen verkleinern sich in Stranglaufrichtung derart, dass sich während des Giessbetriebes eine in Formhohlraum bildende Strangschale beim Durchlauf durch die Kokille verformt, und dadurch eine gleichmässige Kühlung und Schalenwachstum bzw. eine homogene Temperaturverteilung entlang des Strangumfanges gewährleistet wird, wodurch eine die direkte Einführung in die Walzstrasse erlaubende hohe Stranggiessgeschwindigkeit möglich ist. Auch sind die Temperaturverhältnisse im Giesstrang am Auslauf der Giessanlage für die Einführung in die Walzstrasse geeignet, allenfalls kann eine Temperaturregulierung vorgesehen sein, jedoch ist keine Aufheizung notwendig.It has surprisingly been found that when using continuous casting molds, as is known from the EP-B2-0 498 296 are known, the billet and Vorblockstränge generated by rapid continuous casting can be fed directly to a rolling mill without additional heating. The mold cavity of this Stranggiesskokillen has at the inlet end of the mold along a circumferential line of its cross section at least two peripheral portions, each having a cross-sectional enlargement of the mold cavity relative to the corresponding peripheral portions of the mold cavity cross-section at the strand outlet end delimiting the mold in the form of bulges. The arc heights of the bulges are reduced in strand running direction such that deforms during molding in the mold cavity strand shell during passage through the mold, and thereby a uniform cooling and shell growth or a homogeneous temperature distribution along the strand circumference is ensured, creating a direct introduction in the rolling mill permitting high continuous casting speed is possible. The temperature conditions in the cast strand at the outlet of the casting plant for the introduction into the rolling train are suitable, if necessary, a temperature regulation can be provided, but no heating is necessary.

Es ist heute praktisch möglich, im Querschnitt vierkantige Stränge im Formatbereich 120-130 mm mit einer Geschwindigkeit von ca. 6m/min zu Giessen. Bei Kokillen-Querschnittsformen nach der EP-B2-0 498 296 ergibt sich ein Strang mit homogener Temperaturverteilung an der Oberfläche, ohne kalte Kanten, welche sonst induktiv oder mittels Gasbrenner vor der Walzstrasse hätten erwärmt werden müssen. Gleichzeitig werden bei diesem Format die giesstechnischen Vorteile eines Quadrat-Querschnitts gegenüber einem Rundquerschnitt (günstigeres Verhältnis Oberfläche/Volumen bei gleichem Metergewicht) weitgehend beibehalten.It is practically possible today to cast square-edged strands in the format range 120-130 mm at a speed of approximately 6 m / min. In mold cross-sectional shapes after the EP-B2-0 498 296 results in a strand with a homogeneous temperature distribution at the surface, without cold edges, which otherwise would have to be heated inductively or by means of gas burners in front of the rolling train. At the same time, the casting advantages of a square cross-section compared to a round cross-section (more favorable surface / volume ratio with the same weight per meter) are largely retained in this format.

Bei einer besonders bevorzugten Ausführungsform einer Stranggiesskokille für das erfindungsgemässe Verfahren ist die Umfangslinie eines etwa runden Formhohlraumquerschnittes auf der Eingiessseite in mindestens drei im wesentlichen gleich grosse Umfangsabschnitte unterteilt und jeder dieser Umfangsabschnitte weist auf der Eingiessseite die Querschnittsvergrösserung des Formhohlraumes als Ausbuchtung auf. Die Bogenhöhen der Ausbuchtungen verkleinern sich auf allen Umfangsabschnitten in Stranglaufrichtung mindestens entlang einer Teillänge des Formhohlraumes.In a particularly preferred embodiment of a continuous casting mold for the process according to the invention, the circumferential line of an approximately round mold cavity cross section is divided on the pouring side into at least three substantially equal circumferential sections and each of these peripheral sections has on the pouring side the cross sectional enlargement of the mold cavity as a bulge. The heights of the bulges decrease on all peripheral sections in Strand running direction at least along a partial length of the mold cavity.

Bei einer weiteren vorteilhaften Ausführungsform einer Stranggiesskokille für das erfindungsgemässe Verfahren weist die Umfangslinie eines polygonalen, vorzugsweise viereckigen Formhohlraumquerschnittes auf der Eingiessseite zwischen allen Ecken Umfangsabschnitte mit Querschnittsvergrösserungen des Formhohlraumes in der Form von Ausbuchtungen auf und die Bogenhöhen der Ausbuchtungen verkleinern sich auf allen Umfangsabschnitten in Stranglaufrichtung mindestens entlang einer Teillänge des Formhohlraumes.In a further advantageous embodiment of a continuous casting mold for the method according to the invention, the peripheral line of a polygonal, preferably quadrangular cavity section on the pouring side between all corners on peripheral portions with cross-sectional enlargements of the mold cavity in the form of bulges and the heights of the bulges decrease at least on all peripheral sections in strand direction along a partial length of the mold cavity.

Das Verfahren zur Erzeugung von Stahl-Langprodukten, bei welchem die in der Stranggiesskokille erzeugten Knüppel- und Vorblockstränge unmittelbar - ohne zusätzliches Aufheizen - einer Walzstrasse zugeführt und dort zu Langprodukten gewalzt werden, ermöglicht eine einfache Anlagekonfiguration sowie einen kostengünstigen Betrieb.The process for the production of steel long products, in which the billets and blooms produced in the continuous casting mold are fed directly - without additional heating - a rolling train and rolled there to long products, allows a simple system configuration and a cost-effective operation.

Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigt rein schematisch:

Fig. 1
eine schematische Darstellung einer nach dem erfindungsgemässen Verfahren arbeitende Stranggiessanlage mit einer Walzstrasse.
The invention will be explained in more detail with reference to the drawing. It shows purely schematically:
Fig. 1
a schematic representation of a working according to the inventive continuous casting plant with a rolling train.

Fig.1 zeigt schematisch den Aufbau einer an sich bekannten Stranggiessanlage 10 mit einer Giesspfanne 1, einem Zwischengefäss 2 (Tundish), einer mit Wasser gekühlten Kokille 3, sowie einer Strangumlenkeinrichtung 6 für den Strang 5, der mittels Rollen 6' ausgezogen und in die Horizontale gebogen. Danach wird der Strang 5 erfindungsgemäss direkt einer Walzstrasse 20 zugeführt, welche mehrere Walzeinheiten 21 mit Walzrollen 22 aufweist, was nicht weiter im Detail dargetan ist, da solche Walzstrassen 20 bzw. Walzwerke bekannt sind. Fig.1 schematically shows the structure of a known continuous casting 10 with a ladle 1, an intermediate vessel 2 (Tundish), cooled with water mold 3, and a Strandumlenkeinrichtung 6 for the strand 5, which pulled by means of rollers 6 'and bent into the horizontal. Thereafter, the strand 5 according to the invention directly one Walzstrasse 20 fed, which has a plurality of rolling units 21 with rollers 22, which is not shown in detail, since such rolling trains 20 and rolling mills are known.

Ein Formhohlraum 3' dieser Kokille 3 weist am eingiessseitigen Ende der Kokille entlang einer Umfangslinie seines Querschnittes mindestens zwei Umfangsabschnitte auf, die je eine Querschnittsvergrösserung des Formhohlraumes 3' gegenüber den entsprechenden Umfangsabschnitten des Formhohlraumquerschnittes am strangaustrittseitigen Ende der Kokille 3 in der Form von Ausbuchtungen begrenzen, was nicht näher veranschaulicht ist.A mold cavity 3 'of this mold 3 has at the inlet end of the mold along a circumferential line of its cross section at least two peripheral portions, each limiting a cross-sectional enlargement of the mold cavity 3' relative to the corresponding peripheral portions of the mold cavity cross-section at the strand outlet end of the mold 3 in the form of protrusions, which is not illustrated in detail.

Die Stranggiessgeschwindigkeit des Stranges 5 beträgt mindestens 4.2 m/min, um die zulässige Kontaktzeit zwischen Strang und der Walzen am Einlauf der Walzstrasse nicht zu überschreiten und dadurch deren Haltbarkeit nicht unzumutbar zu verkürzen.The continuous casting speed of the strand 5 is at least 4.2 m / min in order not to exceed the allowable contact time between the strand and the rolls at the inlet of the rolling train and thereby not to shorten their durability unreasonable.

Die Temperaturverhältnisse am Auslauf der Stranggiessanlage 10 für die Einführung in die Walzstrasse sind genau angepasst, damit das Walzen des Stranges in optimaler Weise erfolgen kann. Allenfalls kann jedoch ein passiver Temperaturausgleich, ohne Fremdenergiezufuhr vorgenommen werden.The temperature conditions at the outlet of the continuous casting plant 10 for the introduction into the rolling train are precisely adapted so that the rolling of the strand can be carried out in an optimal manner. At most, however, a passive temperature compensation, without external energy supply can be made.

Der Formhohlraumquerschnitt der Stranggiesskokille ist im Wesentlichen als Vierrundformat gebildet. Dieses Vierrundformat basiert auf einem Quadrat oder Rechteck, wobei es in den Eckbereichen jedoch mit relativ grossen Radien versehen ist. Strangaustrittseitig betragen diese Radien in den Eckbereichen vorteilhaft annähernd 20 bis 40 mm bei einer Länge bzw. Breite des Formhohlraumquerschnittes von 120 bis 180 mm.The mold cavity cross section of the continuous casting mold is essentially formed as a four-round format. This four-round format is based on a square or rectangle, but it is provided in the corners with relatively large radii. Strand exit side, these radii in the corner regions are advantageously approximately 20 to 40 mm at a length or width of the mold cavity cross-section of 120 to 180 mm.

Zum Beispiel könnte bei einem Vierrundformat 120 mm eine Kantenverrundung von ca. 25 mm sowie die Stranggiessgeschwindigkeit mind. 5.2 m/min und entsprechend bei einem Vierrundformat 180 mm eine Kantenverrundung von ca. 40 mm sowie Giessgeschwindigkeit von mindestens 4.2 m/min vorgesehen sein.For example, in the case of a four-round format 120 mm, an edge rounding of about 25 mm and the continuous casting speed of at least 5.2 m / min and correspondingly in a four-round format of 180 mm an edge rounding of about 40 mm and casting speed of at least 4.2 m / min could be provided.

Beim Ausguss 11 des oberhalb der Kokille 3 befindlichen Zwischengefässes 2 ist ein an sich herkömmliches Regelorgan, vorzugsweise ein Schiebeverschluss 15 zwecks genauer Zuflussregelung der abzugiessenden Stahlschmelze in die Kokille vorgesehen. Eine Regelung der Füllstandshöhe der Schmelze in der Kokille 3 erfolgt in Abhängigkeit der Einlaufgeschwindigkeit im ersten Walzgerüst (sog. Master-Slave Betrieb), dafür eine Regeleinrichtung 13 und ein Füllstandsmessgerät 14 bei der Kokille 3 vorgesehen sind. Mit dieser Regelung soll eine annähernd konstante Füllhöhe in der Kokille erzielt werden. Vorteilhaft ist zudem ein am Zuflussregelorgan befestigtes und in die Kokille ragendes feuerfestes Tauchrohr vorhanden, damit sich eine möglichst ruhige Badoberfläche in der Kokille ergibt.When spout 11 located above the mold 3 intermediate vessel 2 is a conventional control device itself, preferably a sliding closure 15 is provided for the purpose of accurate inflow control of the molten steel to be poured into the mold. A regulation of the fill level of the melt in the mold 3 is carried out as a function of the inlet speed in the first stand (so-called master-slave operation), for a control device 13 and a level gauge 14 are provided in the mold 3. This regulation is intended to achieve an approximately constant filling level in the mold. In addition, a refractory dip tube attached to the inflow control element and protruding into the mold is advantageous, so that the bath surface in the mold is as smooth as possible.

Die gegossenen Knüppelstränge bilden im Wesentlichen ein Vierrund-Format und deren Verrundung entsprechend dem Format so gewählt wird, dass bei ausreichend grosser Giessgeschwindigkeit ein Strang mit für das Walzen erforderlicher Temperaturverteilung produziert wird, welches ohne jeglicher aktiver Nacherwärmung direkt verwalzt werden kann, d.h. die gegossenen Stränge werden endlos, ohne in Stücke geteilt zu werden, der Walzstrasse zugeführt.The cast billet strands form essentially a four-round format and their fillet is selected according to the format such that, at a sufficiently high casting speed, a strand is produced having a temperature distribution required for rolling, which can be directly rolled without any active reheating, i. the cast strands are fed endlessly to the rolling train without being cut into pieces.

Claims (4)

  1. A process for producing steel long products by continuous casting of steel to form billet and bloom strands and subsequent rolling of these billet and bloom strands to form the long products, such as steel bars or wire, whereby the liquid steel being cast into a continuous casting permanent mould, with which the continuous casting permanent mould forming a quadruple round or substantially circular format forms a mould cavity open on both sides, the mould cavity having on the end of the continuous moulding permanent mould on the pouring in side, along a circumferential line of its cross-section, at least two circumferential sections, which each define a cross-sectional enlargement of the mould cavity in relation to the corresponding circumferential sections of the mould cavity cross-section on the end of the permanent mould on the strand outlet side, in the form of bulges, and curvature heights of the bulges decrease in the direction of travel of the strand such that during the casting operation a strand shell forming in the mould cavity deforms upon passing through the permanent mould, whereby the cast billet respective bloom strands are fed directly to a roll train substantially without any subsequent heating, and that the continuous casting speed is at least 4.2 m/min, whereby the discharge (11) of an intermediate vessel (2) located above the permanent mould (3) an adjustment device, preferably a slide closure (15), is provided for the purpose of precise regulation of the molten steel to be cast into the permanent mould, whereby a regulation of the filling level of the molten mass in the permanent mould (3) being implemented dependently upon the inlet speed into the first roll stand of the roll train (20), and the regulating device being correspondingly regulated.
  2. The process according to Claim 1, characterised in that the cast billet strands form a substantival quadruple round format.
  3. The process according to Claim 2, characterised in that the rounding with the quadruple round format is chosen corresponding to the format such that with a sufficiently high casting speed a strand with temperature distribution required for rolling is produced which can be rolled directly without any active subsequent heating.
  4. The process according to Claim 1, characterised in that the cast billet strands are substantially circular in form.
EP07014841.6A 2007-07-27 2007-07-27 Method for creating steel long products through strand casting and rolling Active EP2025432B2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP07014841.6A EP2025432B2 (en) 2007-07-27 2007-07-27 Method for creating steel long products through strand casting and rolling
US12/670,445 US20100276111A1 (en) 2007-07-27 2008-07-17 Process for Producing Steel Long Products by Continuous Casting and Rolling
KR1020107000773A KR20100038195A (en) 2007-07-27 2008-07-17 Process for producing steel long products by continuous casting and rolling
CA2694755A CA2694755C (en) 2007-07-27 2008-07-17 Process for producing steel long products by continuous casting and rolling
CN200880100820.0A CN102105244B (en) 2007-07-27 2008-07-17 By the method for continuous casting and rolling for the production of steel long products
JP2010517302A JP2011504141A (en) 2007-07-27 2008-07-17 Method for producing long steel products by continuous casting and rolling
RU2010107172/02A RU2484921C2 (en) 2007-07-27 2008-07-17 Method of producing long-length rolled stock by continuous casting and rolling
PCT/EP2008/005864 WO2009015782A2 (en) 2007-07-27 2008-07-17 Process for producing steel long products by continuous casting and rolling
BRPI0814203A BRPI0814203A8 (en) 2007-07-27 2008-07-17 process for producing long steel products through continuous casting and rolling
ZA2010/00216A ZA201000216B (en) 2007-07-27 2010-01-12 Process for producing steel long products by continuous casting and rolling
JP2013166381A JP5632942B2 (en) 2007-07-27 2013-08-09 Method for producing long steel products by continuous casting and rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07014841.6A EP2025432B2 (en) 2007-07-27 2007-07-27 Method for creating steel long products through strand casting and rolling

Publications (3)

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EP2025432A1 EP2025432A1 (en) 2009-02-18
EP2025432B1 true EP2025432B1 (en) 2014-03-19
EP2025432B2 EP2025432B2 (en) 2017-08-30

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EP07014841.6A Active EP2025432B2 (en) 2007-07-27 2007-07-27 Method for creating steel long products through strand casting and rolling

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103480647B (en) * 2013-09-18 2016-03-23 陕西钢铁集团有限公司 A kind of device and production method thereof of producing reinforcing bar without heating low temperature Direct Rolling small billet
CN104923752B (en) * 2015-07-08 2017-04-26 南京工业大学 Continuous casting technology and equipment for titanium or titanium alloy
AT519277A1 (en) * 2016-11-03 2018-05-15 Primetals Technologies Austria GmbH Casting and rolling plant
CN114932146B (en) * 2022-06-30 2024-09-10 浙江青山钢铁有限公司 Rolling method of super duplex stainless steel wire
EP4374986A1 (en) 2022-11-25 2024-05-29 SMS Concast AG Continuous casting installation, in particular for casting metallurgical long products, and a casting tube
CN118122974B (en) * 2024-05-06 2024-12-31 兴化市恒源特钢有限公司 Special steel continuous casting forming device

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349834A (en) * 1965-09-21 1967-10-31 United States Steel Corp Dual-control for controlling the liquid level in a continuous casting mold
DE1816849C3 (en) * 1968-12-24 1973-12-13 Demag Ag, 4100 Duisburg Process for continuous casting and subsequent rolling from the casting heat of steel
CH541756A (en) * 1972-01-05 1973-09-15 Sistag Slider
JPS5137031A (en) * 1974-09-18 1976-03-29 Mitsubishi Heavy Ind Ltd RENZOKUCHU ZOATSUENHOHO
JPS5514133A (en) * 1978-07-14 1980-01-31 Toshiba Corp Producing apparatus of steel bar product
CH639468A5 (en) * 1979-04-05 1983-11-15 Sidler Stalder Sistag Maschine EXPLOSION PROTECTION SHUT-OFF DEVICE WITH FUEL-OPERATED CLOSING ORGAN.
JPS5747509A (en) † 1980-09-05 1982-03-18 Kikai Syst Shinko Kyokai Controlling method for speed of direct rolling mill united with continuous casting machine
CH652180A5 (en) * 1981-10-29 1985-10-31 Sistag FLAT SLIDE.
GB2142122B (en) * 1983-06-24 1986-05-08 Sistag Gate valve
CH666733A5 (en) * 1984-12-19 1988-08-15 Sistag FLAT SLIDE.
SE464619B (en) * 1985-09-13 1991-05-27 Olsson Ag Erik SETTING AND PLANTING FOR STRENGTHENING WITH HORIZONTAL OR SLEEPING COCKLE
CH670872A5 (en) * 1986-07-07 1989-07-14 Sistag
JPS6448609A (en) * 1987-08-19 1989-02-23 Hitachi Ltd Method for controlling speed
ATE105750T1 (en) * 1991-02-06 1994-06-15 Concast Standard Ag MOLD FOR CONTINUOUS CASTING OF METALS, ESPECIALLY STEEL.
DK0627968T3 (en) * 1992-03-05 1996-01-08 Concast Standard Ag Method of string casting of metal, especially steel in coniferous and raw block form
CH686457A5 (en) * 1992-08-11 1996-03-29 Sistag Plate slide.
US5297578A (en) * 1992-08-14 1994-03-29 Tillotson, Ltd. Automatic shutoff valve
JP2856305B2 (en) * 1993-09-22 1999-02-10 日新製鋼株式会社 Control method of molten steel level in mold in continuous casting
JP2989737B2 (en) † 1993-11-25 1999-12-13 勝彦 山田 Continuous casting and continuous casting / rolling of steel
EP0694355B1 (en) * 1994-07-25 1999-08-25 Concast Standard Ag Continuous casting mould of an I-beam preliminary section
DE19639299C2 (en) * 1996-09-25 2001-02-22 Sms Demag Ag Device for producing a polygonal or profile format in a continuous caster
AUPO591697A0 (en) * 1997-03-27 1997-04-24 Bhp Steel (Jla) Pty Limited Casting metal strip
GB2325971B (en) * 1997-05-29 2001-04-04 Sistag Absperrtechnik A driving device for a shut-off device in a pipe-line
DE69717134T2 (en) † 1997-12-24 2003-09-25 Europa Metalli S.P.A., Florenz/Firenze continuous casting
JP3298523B2 (en) * 1998-10-29 2002-07-02 住友金属工業株式会社 Metal surface level control method for continuous casting
DE10027324C2 (en) * 1999-06-07 2003-04-10 Sms Demag Ag Process for casting a metallic strand and system therefor
JP3649143B2 (en) * 2001-04-03 2005-05-18 住友金属工業株式会社 Continuous casting method
JP4351068B2 (en) † 2002-02-22 2009-10-28 エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト Method and apparatus for continuous casting and direct deformation of cast strands made of steel
CH695792A5 (en) * 2002-09-25 2006-08-31 Sistag Absperrtechnik Shut-off device for a pipeline.
DE10314460B4 (en) * 2003-03-28 2006-04-20 Sms Demag Ag Method and continuous casting apparatus with a continuous casting mold for the casting of liquid metals, in particular of steel materials
EP1468760B1 (en) * 2003-04-16 2005-05-25 Concast Ag Tube mould for continuous casting
SI1547705T1 (en) * 2003-12-27 2008-08-31 Concast Ag Method for the continuous casting of billet- and bloom-strands and cavity of a continuous casting mold
ES2304578T3 (en) * 2004-12-29 2008-10-16 Concast Ag INSTALLATION OF CONTINUOUS STEEL COLADA FOR BANK FORMATS AND WEAR.
DK1909980T3 (en) † 2005-07-19 2009-12-21 Giovanni Arvedi Process and associated plants for the production of long steel products without interruption
ATE517706T1 (en) * 2005-12-24 2011-08-15 Concast Ag METHOD AND DEVICE FOR CONTINUOUS CASTING DOUBLE-T PRE-PROFILES
ES2385257T3 (en) * 2007-06-04 2012-07-20 Concast Ag Shell for continuous casting of slabs, ingots for slabs or billets
JP5012255B2 (en) * 2007-06-27 2012-08-29 住友金属工業株式会社 Continuous casting method for small section slabs
US8302662B2 (en) * 2008-01-14 2012-11-06 Sms Concast Ag Continuous casting plant particularly for long steel products, and a method for continuous casting
CH700412B1 (en) * 2009-02-05 2018-02-28 Sistag Ag Gate valve, in particular for shutting off a media-carrying line.
CH701449A2 (en) * 2009-07-02 2011-01-14 Sistag Absperrtechnik Slide valves, in particular leading to the closing of a media line.
US7946556B1 (en) * 2010-08-16 2011-05-24 Sistag Ag Absperrtechnik Resilient seat seal for a valve

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RU2010107172A (en) 2011-09-10
JP2013223887A (en) 2013-10-31
RU2484921C2 (en) 2013-06-20
EP2025432A1 (en) 2009-02-18
CA2694755C (en) 2015-02-24
CA2694755A1 (en) 2009-02-05
JP5632942B2 (en) 2014-11-26
BRPI0814203A2 (en) 2015-01-27
ZA201000216B (en) 2011-04-28
US20100276111A1 (en) 2010-11-04
BRPI0814203A8 (en) 2018-12-18
CN102105244A (en) 2011-06-22
EP2025432B2 (en) 2017-08-30
JP2011504141A (en) 2011-02-03
KR20100038195A (en) 2010-04-13
WO2009015782A3 (en) 2009-05-28
WO2009015782A2 (en) 2009-02-05

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