EP1044735B1 - Method and arrangement for the continuous manufacture of finished sections made of metal - Google Patents

Method and arrangement for the continuous manufacture of finished sections made of metal Download PDF

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Publication number
EP1044735B1
EP1044735B1 EP00106593A EP00106593A EP1044735B1 EP 1044735 B1 EP1044735 B1 EP 1044735B1 EP 00106593 A EP00106593 A EP 00106593A EP 00106593 A EP00106593 A EP 00106593A EP 1044735 B1 EP1044735 B1 EP 1044735B1
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European Patent Office
Prior art keywords
finished
sections
section
billet
divided
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EP00106593A
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German (de)
French (fr)
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EP1044735A3 (en
EP1044735A2 (en
Inventor
Wolgang Dr.-Ing. Mudersbach
Josef Piasecki
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SMS Siemag AG
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SMS Demag AG
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    • 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
    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/12—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 structural sections, i.e. work of special cross-section, e.g. angle steel in a continuous process, i.e. without reversing stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0071—Levelling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B2045/0221—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for structural sections, e.g. H-beams

Definitions

  • the invention relates to a method for continuous according to the preamble of claim 1 Production of finished metal profiles with a Rolled structure, in particular geometrically complex profiles such z.
  • a continuously cast Continuous strand with a cast structure without subdivision and interim heating a rolling mill, in particular universal rolling mill is supplied.
  • the invention relates to a Oberbrgiff of claim 4 Arrangement for carrying out the method.
  • a casting wheel As a casting machine, a casting wheel is used.
  • the one in trapezoider Form the strand leaving the casting wheel is from a water cooled scraper lifted out of the wheel and the Bending zone and supplied to the straightening driver.
  • the casting area is followed by the cooling area which, as a open spray cooling is performed to the liquid residue sump solidified in the strand in a controlled manner.
  • the cooling joins a compensation zone, by a in the Speed adjustable roller table is realized, the the strand passes through without additional cooling and on the a heat balance takes place in the strand.
  • the subsequent rolling area consists of two rolling stands, in which the strand is rolled to dimension, which in a further processing rolling mill, for example one Promenade, let insert.
  • the task is based, a method and an arrangement of initially mentioned type for the production of insbeondere geometrically complex profiles such as beams, sheet piles, railway rails and railway construction material etc. with improved economy, especially through less Malfunction, higher material output, lower Energy costs and less design effort propose.
  • the cross section of the cast Stands By changing the mold, the cross section of the cast Stands to a variety of different finished profiles be approximated, with the above give beneficial effects.
  • Another advantage of the Continuous casting rolls result in almost during rolling no headboards and feet with dangerous sharp tongues occur at bridge and flanges. After rolling it will Prefabricated profile fed to a cooling section and then with Help a running subdivision device in sections divided, whose length is a multiple of the length of the sellable subdivided finished profiles amounts.
  • the Continuous casting rolls allows both upstream and downstream also in downstream areas of the arrangement for Performing the procedure slows down the deployment Machines, in particular band saws for dividing up Sales lengths.
  • the cooling is preferably carried out with a Water-air cooling section.
  • the liquid steel area shown on the left in the picture consists of a pan 1, a tundish 2 and a casting wheel 3.
  • the arranged under the pan 1 Tundish has the task, the Align pouring stream on the mold of the casting wheel 3 and serves as a buffer during the pan change.
  • That too known casting wheel 3 comprises an endless circumferential Steel chain, scraper and cleaning accessories and coolant.
  • the steel chain closes a groove approximately on one Quarter of the wheel circumference of the casting wheel 3 and forms with the Wheel the mold.
  • the steel runs from Tundish 2 into the mold and solidifies during the quarter turn of the casting wheel 3 so far, that a solid shell has formed.
  • This semi-solid strand is in a downstream Arrangement 4 descaled and immediately several, in the embodiment four roll mills 5 fed, the off the thin close to the final profile of the mold, the Finished profile is geometrically similar, for example a Form double-T beams.
  • Compared to conventional reversing mills usual 10 m / s, this is despite the high casting speed a very small rolling speed.
  • Under the example given process data results in 6000 operating hours per year one year production output of 1,440,000 tons.
  • a downstream water-air cooling section 6 is the Walzwarme profile cooled down to ambient temperature, where with the regulation of the cooling curve the residual stresses, the Structure education, the surface texture and the Straightness of the profile during further cooling targeted to be influenced.
  • the low rolling speed of the profile rolling stands 5 allowed the subdivision of the continuously produced finished profile with a revolving saw 7 in sections, the by means of a cross conveyor 8 with integrated therein Streckrichtstrom 9 a stacking system 10 for forming single or multi-layer layers (packets) supplied to the sections become. From the stacking system 10 get the packages via a roller table 11 to another sub-device 12. The packages have a total weight of about 30 t. Consequently The cycle times can be used to divide the sections in ready to sell finished profiles in the other sub-device 12 are chosen large, so that slowly running machines, such as band saws, for dividing come into question.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Extrusion Of Metal (AREA)

Abstract

A continuously cast endless metal billet is fed directly and continuously into a multi-stand section rolling mill (5). The profile of the cast billet is adapted to that of the finished profile, so that the cast structure of the billet is converted int the rolled structure of the finished profile, with only min. stretching of the billet in the rolling mill. The finished profile passed through a cooling stand (6) and cut in a cutting stand (7) into length, which are a multiple of final lengths for sale. T length are stretch leveled, bundled, and cut into lengths for sale in a second cutting stand (12).

Description

Die Erfindung betrifft ein nach Oberbegriff des Anspruchs 1 Verfahren zur kontinuierlichen Herstellung von Fertigprofilen aus Metall mit einem Walzgefüge, insbesondere geometrisch komplexen Profilen wie z. B. Träger, Spundwandbohlen, Eisenbahnschienen und Oberbaumaterial, bei dem ein kontinuierlich gegossener Endlosstrang mit einem Gußgefüge ohne Unterteilung und Zwischenerwärmung einem Walzwerk, insbeondere Universalwalzwerk zugeführt wird. Außerdem betrifft die Erfindung eine nach Oberbrgiff des Anspruchs 4 Anordnung zum Durchführen des Verfahrens.The invention relates to a method for continuous according to the preamble of claim 1 Production of finished metal profiles with a Rolled structure, in particular geometrically complex profiles such z. As carriers, sheet piles, railroad tracks and Superstructure material in which a continuously cast Continuous strand with a cast structure without subdivision and interim heating a rolling mill, in particular universal rolling mill is supplied. Moreover, the invention relates to a Oberbrgiff of claim 4 Arrangement for carrying out the method.

Derartige Verfahren und Anordnungen zu deren Durchführung sind aus dem Stand der Technik bekannt. In Neue Hütte, November 1983, Seiten 424 - 426 ist ein Verfahren zur kontinuierlichen Herstellung von Fertigprofilen beschrieben, bei dem mit Hilfe eines Gießrades ein kontinuierlicher Strang gegossen wird. Nach dem Verlassen der Kokille des Gießrades wird der Strang über mehrere Rollen und einen Richttreiber gerichtet, zur kompletten Erstarrung gebracht und einer Ausgleichstrecke zugeführt, in der die Temperatur über den Flächenquerschnitt des Stranges einheitlich eingestellt wird. Der gegossene Strang hat eine trapezoide Querschnittsform, um ihn problemlos aus der Kokille des Gießrades lösen zu können. In einem Vertikal- und Horizontalgerüst erfolgt eine Umformung des Stranges in eine quadratische Querschnittsform, die dann als kontinuierlicher Strang einer Vorstraße und anschließend der Fertigstraße zugeführt wird, in der aus dem Strang das Fertigprofil hergestellt wird. Such methods and arrangements for their implementation are known from the prior art. In New Hut, November 1983, pages 424-426 is a method for continuous Production of finished profiles described in which cast a continuous strand with the help of a casting wheel becomes. After leaving the mold of the casting wheel is the strand is directed over several rolls and a straightening driver, brought to complete solidification and a compensation line supplied in which the temperature over the area cross section of the strand is set uniformly. Of the cast strand has a trapezoidal cross-sectional shape to it to solve problems from the mold of the casting wheel. In a vertical and horizontal framework is transformed of the strand into a square cross-sectional shape, which then as a continuous strand of a roughing road and then the finishing train is fed, in the strand of the Finished profile is produced.

Im einzelnen besteht die Anlage zur Durchführung dieses Verfahrens aus folgenden, in Richtung des Materialflusses hintereinander angeordneten Bereichen:In detail, the system for carrying out this method from the following, in the direction of the material flow one behind the other arranged areas:

a) Flüssigstahlbereich:a) liquid steel area:

Als Gießmaschine kommt ein Gießrad zum Einsatz. Der in trapezoider Form das Gießrad verlassende Strang wird von einem wassergekühlten Abstreifmeißel aus dem Rad gehoben und der Biegezone und dem Richttreiber zugeführt.As a casting machine, a casting wheel is used. The one in trapezoider Form the strand leaving the casting wheel is from a water cooled scraper lifted out of the wheel and the Bending zone and supplied to the straightening driver.

Zur Funktion und Wirkungsweise eines Gießrades zum kontinuierlichen Gießen eines Metallbandes wird beispielhaft auf die DE-A- 1 941 729 hingewiesen.On the function and operation of a casting wheel for continuous Casting a metal strip is exemplary on the DE-A-1 941 729.

b) Kühl- und Ausgleichszone:b) Cooling and equalizing zone:

An den Gießbereich schließt sich der Kühlbereich an, der als offene Sprühkühlung ausgeführt ist, um den flüssigen Restsumpf im Strang kontrolliert zu verfestigen. Der Kühlung schließt sich eine Ausgleichszone an, die durch einen in der Geschwindigkeit einstellbaren Rollgang realisiert ist, den der Strang ohne zusätzliche Kühlung durchläuft und auf dem ein Wärmeausgleich im Strang stattfindet.The casting area is followed by the cooling area which, as a open spray cooling is performed to the liquid residue sump solidified in the strand in a controlled manner. The cooling joins a compensation zone, by a in the Speed adjustable roller table is realized, the the strand passes through without additional cooling and on the a heat balance takes place in the strand.

c) Walzbereich:c) rolling range:

Der anschließende Walzbereich besteht aus zwei Walzgerüsten, in denen der Strang auf Abmessung gewalzt wird, die sich in einem weiterverarbeitenden Walzwerk, beispielsweise einer Vorstraße, einsetzen lassen.The subsequent rolling area consists of two rolling stands, in which the strand is rolled to dimension, which in a further processing rolling mill, for example one Promenade, let insert.

Mit dem bekannten Verfahren zur kontinuierlichen Herstellung von Fertigprofilen wird der bei diskontinuierlichen Verfahren erforderliche Stoßofen entbehrlich. Außerdem werden die Energiekosten beim Betrieb erheblich reduziert. With the known method for continuous production of finished profiles is the in discontinuous process required blast furnace dispensable. In addition, the energy costs considerably reduced during operation.

Ausgehend von diesem Stand der Technik zur Erzeugung geometrisch einfacher Profile wie Draht liegt der Erfindung die Aufgabe zugrunde, ein Verfahren und eine Anordnung der eingangs erwähnten Art zur Herstellung von insbeondere geometrisch komplexen Profilen wie Träger, Spundwandbohlen, Eisenbahnschienen und Eisenbahnoberbaumaterial etc. mit verbesserter Wirtschaftlichkeit insbesondere durch weniger Betriebsstörungen, höheres Materialausbringen, geringere Energiekosten und geringerem Konstruktionsaufwand vorzuschlagen.Based on this state of the art for the production geometrically simple profiles such as wire lies the invention the task is based, a method and an arrangement of initially mentioned type for the production of insbeondere geometrically complex profiles such as beams, sheet piles, Railway rails and railway construction material etc. with improved economy, especially through less Malfunction, higher material output, lower Energy costs and less design effort propose.

Diese Aufgabe wird bei einem Verfahren der eingangs erwähnten Art dadurch gelöst, daß der Endlosstrang unmittelbar und kontinuierlich einem mehrgerüstigen Formstahlwalzwerk zugeführt wird. Die nach dem Stand der Technik erforderliche Erwärmung im Walzwerksofen sowie die Umformung des Stranggußstranges in einer Vorstraße des Formstahlwalzwerkes entfällt. Der kontinuierliche Strang wird unmittelbar in dem mehrgerüstigen Formstahlwalzwerk zum Fertigprofil umgeformt.This object is achieved in a method of the aforementioned Art solved by the fact that the endless strand immediately and continuously a multi-standformed steel rolling mill is supplied. The required in the prior art Heating in the rolling mill furnace and the forming of the Continuous casting strand in a roughing mill of the forming mill eliminated. The continuous strand is directly in the multi-stand forming steel mill to the finished profile reshaped.

Wird der Querschnitt des gegossenen Stranges so weit an den Querschnitt des Fertigprofils angenähert, daß sich das Gußgefüge des Stranges in das Walzgefüge des Fertigprofiles bei minimalem Streckgrad des Stranges im Formstahlwalzwerk umwandelt, lassen sich hohe Produktionsleistungen bei geringer Walzgeschwindigkeit in dem Formstahlwalzwerk realisieren. Gegenüber herkömmlichen Reversierwalzwerken liegen die Walzgeschwindigkeiten etwa um den Faktor 7 niedriger. Die geringeren Walzgeschwindigkeiten erhöhen die Arbeits- und Betriebssicherheit und reduzieren die Geräuschentwicklung beim Betrieb einer Anordnung zum Durchführen des Verfahrens. Gleichzeitig wird durch diese Maßnahme die Qualität des Fertigprofils verbessert. If the cross section of the cast strand so far to the Cross section of the finished profile approximated that the cast structure of the strand in the rolling structure of the finished profile at minimum degree of stretching of the strand in the milled steel mill, High production rates can be reduced Realize rolling speed in the forming steel mill. Compared with conventional reversing mills are the Rolling speeds lower by a factor of about 7. The lower rolling speeds increase the working and Operational safety and reduce noise in the operation of an arrangement for carrying out the method. At the same time, the quality of the Improved finished profiles.

Durch Wechseln der Kokille kann der Querschnitt des gegossenen Stranges an eine Vielzahl unterschiedlicher Fertigprofile angenähert werden, wobei sich die vorstehend angegebenen vorteilhaften Wirkungen ergeben. Als weiterer Vorteil aus dem Endlosgießwalzen resultiert, daß während des Walzens nahezu keine Kopfenden und Fußenden mit gefährlichen scharfen Zungen an Steg und Flanschen auftreten. Nach dem Walzen wird das Fertigprofil einer Kühlstrecke zugeführt und anschließend mit Hilfe einer mitlaufenden Unterteilvorrichtung in Abschnitte unterteilt, deren Länge ein Vielfaches der Länge des verkaufsfähig unterteilten Fertigprofils beträgt. Das Endlosgießwalzen ermöglicht sowohl in vorgeschalteten als auch in nachgeordneten Bereichen der Anordnung zum Durchführen des Verfahrens den Einsatz langsam laufender Maschinen, wie insbesondere Bandsägen zum Unterteilen auf Verkaufslängen.By changing the mold, the cross section of the cast Stands to a variety of different finished profiles be approximated, with the above give beneficial effects. Another advantage of the Continuous casting rolls result in almost during rolling no headboards and feet with dangerous sharp tongues occur at bridge and flanges. After rolling it will Prefabricated profile fed to a cooling section and then with Help a running subdivision device in sections divided, whose length is a multiple of the length of the sellable subdivided finished profiles amounts. The Continuous casting rolls allows both upstream and downstream also in downstream areas of the arrangement for Performing the procedure slows down the deployment Machines, in particular band saws for dividing up Sales lengths.

Vor Unterteilen des Endlosstranges in Abschnitte mit einem Vielfachen der Verkaufslängen muß dieser auf ein Niveau gekühlt werden, welches bei der Verarbeitung der Abschnitte ein Verziehen vermeidet. Die Rühlung erfolgt vorzugsweise mit einer Wasser-Luftkühlstrecke.Before dividing the continuous strand into sections with a Multiple of the sales lengths this must be to a level be cooled, which in the processing of sections a Warping avoids warping. The cooling is preferably carried out with a Water-air cooling section.

Nachfolgend wird die Erfindung anhand eines Ausführungsbeispieles erläutert.

Figur 1
zeigt eine Anordnung zum Durchführen des Verfahrens in schematischer Seitenansicht und Aufsicht.
The invention will be explained with reference to an embodiment.
FIG. 1
shows an arrangement for carrying out the method in a schematic side view and supervision.

Der links im Bild gezeigte Flüssigstahlbereich besteht aus einer Pfanne 1, einem Tundish 2 sowie einem Gießrad 3. Der unter der Pfanne 1 angeordnete Tundish hat die Aufgabe, den Gießstrahl auf die Kokille des Gießrades 3 auszurichten und dient als Puffer während des Pfannenwechsels. Das ebenfalls an sich bekannte Gießrad 3 umfaßt eine endlose umlaufende Stahlkette, Abstreifmeißel und Reinigungszubehör sowie Kühlmittel. Die Stahlkette verschließt eine Nut etwa auf einem Viertel des Radumfanges des Gießrades 3 und bildet mit dem Rad die Kokille. Der Stahl läuft vom Tundish 2 in die Kokille und erstarrt während der Vierteldrehung des Gießrades 3 soweit, daß sich eine feste Schale gebildet hat.The liquid steel area shown on the left in the picture consists of a pan 1, a tundish 2 and a casting wheel 3. The arranged under the pan 1 Tundish has the task, the Align pouring stream on the mold of the casting wheel 3 and serves as a buffer during the pan change. That too known casting wheel 3 comprises an endless circumferential Steel chain, scraper and cleaning accessories and coolant. The steel chain closes a groove approximately on one Quarter of the wheel circumference of the casting wheel 3 and forms with the Wheel the mold. The steel runs from Tundish 2 into the mold and solidifies during the quarter turn of the casting wheel 3 so far, that a solid shell has formed.

Dieser teilerstarrte Strang wird in einer nachgeschalteten Anordnung 4 entzundert und unmittelbar mehreren, im Ausführungsbeispiel vier Profilwalzgerüsten 5 zugeführt, die aus dem dünnen endabmessungsnahen Vorprofil der Kokille, das dem Fertigprofil geometrisch ähnlich ist, beispielsweise einen Doppel-T-Träger formen.This semi-solid strand is in a downstream Arrangement 4 descaled and immediately several, in the embodiment four roll mills 5 fed, the off the thin close to the final profile of the mold, the Finished profile is geometrically similar, for example a Form double-T beams.

Angenommen der gegossene Strang hat ein spezifisches Gewicht von 200 kg/m, resultiert bei einem geforderten Streckgrad zur Umwandlung des Gußgefüges des Stranges in das Walzgefüge des Fertigprofils von λ = 4 ein spezifisches Gewicht des Fertigprofiles von 50 kg/m. Unter der Annahme einer hohen Gießgeschwindigkeit von 20 m/min. ergibt sich bei dem gegebenen Streckgrad von λ = 4 eine Walzgeschwindigkeit von 80 m/min. entsprechend 1,3 m/s. Gegenüber den bei herkömmlichen Reversierwalzwerken üblichen 10 m/s ist dies trotz der hohen Gießgeschwindigkeit eine sehr kleine Walzgeschwindigkeit. Unter den beispielhaft vorgegebenen Prozeßdaten ergibt sich bei 6000 Betriebsstunden pro Jahr eine Jahresproduktionsleistung von 1.440.000 Tonnen.Suppose the cast strand has a specific weight of 200 kg / m, results in a required degree of stretching for Conversion of the cast structure of the strand in the rolling structure of the Finished profiles of λ = 4 a specific weight of the finished profile of 50 kg / m. Assuming a high casting speed of 20 m / min. results from the given Draft of λ = 4 a rolling speed of 80 m / min. corresponding to 1.3 m / s. Compared to conventional reversing mills usual 10 m / s, this is despite the high casting speed a very small rolling speed. Under the example given process data results in 6000 operating hours per year one year production output of 1,440,000 tons.

In einer nachgeschalteten Wasser-Luft-Kühlstrecke 6 wird das walzwarme Profil auf Umgebungstemperatur herabgekühlt, wobei mit der Regelung des Kühlverlaufs die Eigenspannungen, die Gefügeausbildung, die Oberflächenbeschaffenheit und die Geradheit des Profils bei der weiteren Abkühlung gezielt beeinflußt werden.In a downstream water-air cooling section 6 is the Walzwarme profile cooled down to ambient temperature, where with the regulation of the cooling curve the residual stresses, the Structure education, the surface texture and the Straightness of the profile during further cooling targeted to be influenced.

Die geringe Walzgeschwindigkeit der Profilwalzgerüste 5 erlaubt das Unterteilen des kontinuierlich hergestellten Fertigprofils mit einer mitlaufenden Säge 7 in Abschnitte, die mit Hilfe einer Querfördereinrichtung 8 mit darin integrierter Streckrichtanlage 9 einer Stapelanlage 10 zum Bilden von ein- oder mehrlagigen Schichten (Pakete) der Abschnitte zugeführt werden. Von der Stapelanlage 10 gelangen die Pakete über einen Rollgang 11 zu einer weiteren Unterteilvorrichtung 12. Die Pakete haben ein Gesamtgewicht von etwa 30 t. Infolgedessen können die Zykluszeiten zum Unterteilen der Abschnitte in verkaufsfertige Fertigprofile in der weiteren Unterteilvorrichtung 12 groß gewählt werden, so daß langsam laufende Maschinen, wie beispielsweise Bandsägen, zum Unterteilen in Frage kommen.The low rolling speed of the profile rolling stands 5 allowed the subdivision of the continuously produced finished profile with a revolving saw 7 in sections, the by means of a cross conveyor 8 with integrated therein Streckrichtanlage 9 a stacking system 10 for forming single or multi-layer layers (packets) supplied to the sections become. From the stacking system 10 get the packages via a roller table 11 to another sub-device 12. The packages have a total weight of about 30 t. Consequently The cycle times can be used to divide the sections in ready to sell finished profiles in the other sub-device 12 are chosen large, so that slowly running machines, such as band saws, for dividing come into question.

Claims (6)

  1. A method for continuously manufacturing finished sections of metal with a rolled structure, in which a continuously cast endless billet with a cast structure is delivered to a rolling mill without being divided and intermediately heated,
    characterized in that
    the billet is directly and continuously delivered to a multi-stand section mill (5), and in that the cast endless billet is processed until its cross section approaches the cross section of the finished section, namely to such a degree that the cast structure of the endless billet is transformed into the rolled structure of the finished section with a minimal stretching rate λ of the endless billet in the section mill.
  2. The method according to Claim 1,
    characterized in that
    the finished section is delivered to a cooling stretch (6) and subsequently divided in a dividing device (7), wherein the length of the divided sections amounts to a multiple of the length of the salably divided finished sections.
  3. The method according to Claim 2,
    characterized in that
    the divided finished sections are transported to a patent flattening device, subsequently bundled into packets and divided into salable sections.
  4. An arrangement for carrying out the method according to one of Claims 1-3,
    characterized in that
    a continuous casting system (3), a section mill (5) with at least two roll stands, a cooling stretch (6) for cooling the finished sections, a traveling dividing device (7) for dividing the finished sections, a transport device (8) with a patent flattening device (9) for the divided sections, a stacking system (10) for forming single-layer or multilayer tiers of the divided sections and an additional dividing device (12) for the division into salable finished sections are successively arranged in the direction of the material flow of the billet or the finished section.
  5. The arrangement according to Claim 4,
    characterized in that
    an arrangement for descaling (4) the billet is provided between the continuous casting system (3) and the section mill (5).
  6. The arrangement according to Claim 4 or 5,
    characterized in that
    the continuous casting system (3) is realized in the form of a casting wheel with revolving mould, particularly a chain casting wheel, in that the cooling stretch (6) is realized in the form of a water-air cooling stretch, in that the traveling dividing device (7) is realized in the form of a traveling saw, in that the transport device (8) is realized in the form of a cross conveyor, and in that the additional dividing device (12) is realized in the form of a displaceable band saw system.
EP00106593A 1999-04-03 2000-03-28 Method and arrangement for the continuous manufacture of finished sections made of metal Expired - Lifetime EP1044735B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19915624A DE19915624A1 (en) 1999-04-03 1999-04-03 Process and arrangement for the continuous production of finished profiles from metal
DE19915624 1999-04-03

Publications (3)

Publication Number Publication Date
EP1044735A2 EP1044735A2 (en) 2000-10-18
EP1044735A3 EP1044735A3 (en) 2003-01-15
EP1044735B1 true EP1044735B1 (en) 2005-02-02

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Application Number Title Priority Date Filing Date
EP00106593A Expired - Lifetime EP1044735B1 (en) 1999-04-03 2000-03-28 Method and arrangement for the continuous manufacture of finished sections made of metal

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Country Link
EP (1) EP1044735B1 (en)
AT (1) ATE288330T1 (en)
DE (2) DE19915624A1 (en)
ES (1) ES2235703T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1877203B2 (en) † 2005-03-02 2015-12-09 DANIELI & C. OFFICINE MECCANICHE S.p.A. Compact plant for continuous production of bars and/or profiles

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105368B1 (en) * 1982-02-04 1988-06-01 Southwire Company Method of hot-forming metals prone to crack during rolling
JPH0335802A (en) * 1989-06-30 1991-02-15 Sumitomo Metal Ind Ltd Production of rough shape billet for shape steel
ATE179640T1 (en) * 1994-10-20 1999-05-15 Mannesmann Ag METHOD AND DEVICE FOR PRODUCING STEEL STRIP WITH COLD ROLLING PROPERTIES
DE19525513B4 (en) * 1995-07-13 2006-01-19 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Device for straightening a flange profile as straightening material
IT1288842B1 (en) * 1996-01-26 1998-09-25 Simac Spa METHOD AND RESPECTIVE HOT ROLLING PLANT FOR THE CONTINUOUS PRODUCTION OF BARS, RODS OR WIRE
DE19729991A1 (en) * 1997-07-12 1999-01-14 Schloemann Siemag Ag Process for casting and rolling and a rolling stand arrangement for rolling finished profiles (sheet piling profiles) from a preliminary profile close to the final dimension coming from a continuous casting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1877203B2 (en) † 2005-03-02 2015-12-09 DANIELI & C. OFFICINE MECCANICHE S.p.A. Compact plant for continuous production of bars and/or profiles

Also Published As

Publication number Publication date
EP1044735A3 (en) 2003-01-15
EP1044735A2 (en) 2000-10-18
ES2235703T3 (en) 2005-07-16
ATE288330T1 (en) 2005-02-15
DE50009386D1 (en) 2005-03-10
DE19915624A1 (en) 2000-10-05

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