EP2310152B1 - Method for longitudinally guiding rolling stock, especially a hot-rolled steel strip, and hot-rolling mill for carrying out said method - Google Patents

Method for longitudinally guiding rolling stock, especially a hot-rolled steel strip, and hot-rolling mill for carrying out said method Download PDF

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Publication number
EP2310152B1
EP2310152B1 EP09777151.3A EP09777151A EP2310152B1 EP 2310152 B1 EP2310152 B1 EP 2310152B1 EP 09777151 A EP09777151 A EP 09777151A EP 2310152 B1 EP2310152 B1 EP 2310152B1
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EP
European Patent Office
Prior art keywords
rolling stock
rolling
hot
stock
rolling mill
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Not-in-force
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EP09777151.3A
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German (de)
French (fr)
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EP2310152A2 (en
Inventor
Wolfgang Fuchs
Henning Berg
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SMS Siemag AG
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SMS Siemag AG
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Publication of EP2310152A2 publication Critical patent/EP2310152A2/en
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    • 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
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0426—Hot rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • B21B37/76—Cooling control on the run-out table

Description

Die Erfindung betrifft ein Verfahren zum Längsführen eines Walzgutes, insbesondere eines warmgewalzten Stahlbandes nach den Merkmalen des Oberbegriffs von Patentanspruch 1 und ein Warmwalzwerk zur Durchführung des Verfahrens nach den Merkmalen des Oberbegriffs von Patentanspruch 8.The invention relates to a method for longitudinally guiding a rolling stock, in particular a hot-rolled steel strip according to the features of the preamble of claim 1 and a hot rolling mill for carrying out the method according to the features of the preamble of claim. 8

Allgemein bekannt ist, dass das Walzgut in einem Warmwalzwerk, wenn es die Fertigwalzstraße verlässt, über einen Rollgang einen Laminar-Kühlbereich bis zu einem Haspelbereich durchläuft.It is generally known that the rolling stock in a hot rolling mill, as it leaves the finishing train, passes through a laminar refrigerating section to a reel section via a roller table.

In dem Laminar-Kühlbereich wird das Walzgut mittels Wasser, zum Erreichen einer über die Breite des Walzgutes möglichst gleichmäßigen Gefügestruktur und gleichmäßiger Festigkeitseigenschaften, auf eine erforderliche Haspeltemperatur gekühlt.In the laminar cooling area, the rolling stock is cooled to a required reel temperature by means of water, in order to achieve a structure structure which is as uniform as possible over the width of the rolling stock and uniform strength properties.

Bedingt durch den Gesamtherstellungsprozess des Walzgutes entsteht unter Umständen ein ungleiches Temperaturprofil über die Breite des Walzgutes. Dieses Temperaturprofil kann im Sinne einer Vergleichmäßigung durch vorzugsweise eine längs des Walzgutes und über der Breite des Walzgutes angeordneten Vorrichtung mit Abschirmelementen zum Kühlen des Walzgutes beeinflusst werden.Due to the overall manufacturing process of the rolling stock, an uneven temperature profile may occur across the width of the rolling stock. This temperature profile can be influenced in the sense of a homogenization by preferably one along the rolling stock and over the width of the rolling stock arranged device with shielding elements for cooling the rolling stock.

Eine solche Vorrichtung ist aus der DE 3230866 C2 und aus der DE 199 25 535 A1 bekannt.Such a device is from the DE 3230866 C2 and from the DE 199 25 535 A1 known.

Der Transport des Walzgutes längs des Rollgangs erfolgt dennoch nicht immer so, dass mittels der vorgenannten Vorrichtung immer annähernd die Breite des Walzgutes gleichmäßig gekühlt wird, weil das Walzgut.zum Ausschwärmen neigt, also den durch die Vorrichtung vorbestimmten Kühlbereich seitlich verlässt. Dadurch können permanent einseitig oder wechselseitig die Kantenbereiche des Walzgutes, im Vergleich zur Gesamtbreite, erhebliche Abweichungen im Temperaturprofil, in der Gefügestruktur und in der Festigkeit auftreten. Als ein besonderer Nachteil sind in diesem Zusammenhang entstehende Besäumverluste zu nennen; diese Besäumverluste führen zu einer geringen Ausbringung.The transport of the rolling stock along the roller table is still not always so that by means of the aforementioned device always approximately the width of the rolling stock is uniformly cooled, because the Walzgut.zum swarming, so the side by the device predetermined cooling range. As a result, the edge regions of the rolling stock, which are permanently one-sided or mutually alternating, can show considerable deviations compared to the overall width occur in the temperature profile, in the microstructure and in the strength. As a particular disadvantage in this context resulting Besäumverluste be mentioned; These edging losses lead to a low output.

Es ist daher Aufgabe der vorliegenden Erfindung, die vorgenannten Gefüge-und Festigkeitsunterschiede und die Besäumverluste des Walzgutes zu minimieren.It is therefore an object of the present invention to minimize the aforementioned structure and strength differences and the Besäumverluste of the rolling stock.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 und durch die Merkmale des Patentanspruchs 8 gelöst.The object is achieved by the features of claim 1 and by the features of claim 8.

Nach den Merkmalen des Patentanspruchs 1 wird gemäß dem Verfahren zum Längsführen eines Walzgutes, insbesondere eines warmgewalzten Stahlbandes, das Walzgut nach dem Verlassen der Fertigwalzstraße eines Warmwalzwerkes über einen Rollgang in Richtung eines Haspels transportiert und es durchläuft dabei einen zwischen der Fertigwalzstraße und dem Haspel liegenden Laminar-Kühlbereich.According to the features of claim 1, according to the method for longitudinally guiding a rolled material, in particular a hot-rolled steel strip, the rolling stock is transported after leaving the finishing train of a hot rolling mill via a roller table in the direction of a reel and it passes through lying between the finishing train and the reel laminar -Kühlbereich.

Erfindungsgemäß wird das Walzgut längs und beidseitig des Laminar-Kühlbereiches durch wenigstens eine Seitenführung geführt, die aus parallel zueinander und voneinander beabstandet angeordneten Führungslinealen besteht, und zwar derart, dass es, vorzugsweise von einer über dem Walzgut angeordneten Kühlvorrichtung mit Abschirmelementen für ein flüssiges Kühlmedium, im Wesentlichen vollflächig dem Kühlmedium ausgesetzt wird.According to the invention, the rolling stock is guided longitudinally and on both sides of the laminar cooling area through at least one lateral guide, which consists of parallel guide bars spaced apart from one another, in such a way that it preferably comprises a cooling device with shielding elements for a liquid cooling medium arranged above the rolling stock. is essentially exposed over the entire surface of the cooling medium.

Damit ist der Vorteil verbunden, dass das Walzgut am Ausschwärmen, das heißt, am Verlassen seiner Transportrichtung im Laminar-Kühlbereich, gehindert wird. Damit wird über die Breite des Walzgutes ein gleichmäßiges Temperaturprofil bei Ausbildung einer einheitlichen Gefügestruktur und gleichmäßiger Festigkeitseigenschaften erreicht.This has the advantage that the rolling stock is prevented from swarming out, that is, from leaving its transport direction in the laminar cooling region. Thus, over the width of the rolling stock, a uniform temperature profile is achieved with the formation of a uniform microstructure and uniform strength properties.

Ferner werden im Ergebnis des erfindungsgemäßen Verfahrens die Besäumverluste des Walzgutes entscheidend verringert und folglich wird die Ausbringung an Walzgut gesteigert.Furthermore, as a result of the method according to the invention, the trimming losses of the rolling stock are decisively reduced and consequently the output of rolling stock is increased.

Wie bereits vorstehend erwähnt, kann das Walzgut längs des Laminar-Kühlbereiches durch mehrere Seitenführungen geführt werden. Die Seitenführungen bestehen dabei, wie erwähnt, aus beidseits des Walzgutes vorhandenen, parallel zueinander angeordneten und relativ zueinander verschiebbaren Führungslinealen.As already mentioned above, the rolling stock can be guided along the laminar cooling area through a plurality of side guides. The side guides are, as mentioned, from both sides of the rolling stock, arranged parallel to each other and relatively movable guide rails.

Das Einstellen der wenigstens einen Seitenführung auf die Breite des Walzgutes erfolgt in Ausgestaltung der Erfindung automatisch, und zwar dadurch, dass nach dem Verlassen der Fertigwalzstraße die Breite des Walzgutes messtechnisch erfasst wird. Daraufhin erfolgt vorzugsweise ein grobes Einstellen der wenigstens einen Seitenführung auf die Breite des Walzgutes und nachdem der Kopf des Walzgutes die Seitenführung passiert hat, erfolgt das Einstellen auf die erfasste Breite des Walzgutes.Setting the at least one side guide to the width of the rolling stock takes place in an embodiment of the invention automatically, by the fact that after leaving the finishing train, the width of the rolling stock is detected by measurement. This is followed by a coarse adjustment of the at least one side guide to the width of the rolling stock and after the head of the rolling stock has passed the side guide, the setting is made to the detected width of the rolling stock.

Wie bereits vorstehend offenbart, kann das Einstellen der Seitenführung quer zum Transportweg des Walzgutes erfindungsgemäß in Abhängigkeit von der Position der vorzugsweise über dem Walzgut angeordneten Kühlvorrichtung mit den Abschirmelementen für ein flüssiges Kühlmedium erfolgen. In gleicher Weise kann natürlich auch die erwähnte Kühlvorrichtung auf die Position der Seitenführung ausgerichtet werden, und zwar immer unter dem Aspekt der Erzielung eines annähernd über die Breite des Walzgutes gleich bleibenden Temperaturprofils.As already disclosed above, the adjustment of the lateral guide transversely to the transport path of the rolling stock can be effected according to the invention as a function of the position of the cooling device preferably arranged above the rolling stock with the shielding elements for a liquid cooling medium. In the same way, of course, the mentioned cooling device can be aligned to the position of the side guide, always under the aspect of achieving a nearly over the width of the rolling stock constant temperature profile.

Nach den Merkmalen des Patentanspruchs 8 umfasst das Warmwalzwerk einen nach der Fertigwalzstraße des Warmwalzwerkes angeordneten Laminar-Kühlbereich mit Rollgang zum Transport des Walzgutes, einen am Ende des Rollganges angeordneten Haspel zum Aufwickeln des Walzgutes und vorzugsweise eine über dem Walzgut angeordnete Kühlvorrichtung mit Abschirmelementen für ein flüssiges Kühlmedium.According to the features of claim 8, the hot rolling mill comprises a arranged after the finishing mill of the hot rolling mill laminar cooling area with roller conveyor for transporting the rolling stock, arranged at the end of the roller table reel for winding the rolling stock and preferably arranged above the rolling stock cooling device with shielding elements for a liquid cooling medium.

Erfindungsgemäß ist, um ein seitliches Ausschwärmen des Walzgutes innerhalb des Laminar-Kühlbereiches zu vermeiden, längs des Laminar-Kühlbereiches wenigstens eine Seitenführung angeordnet.According to the invention, in order to avoid lateral swarming of the rolling stock within the laminar cooling area, at least one lateral guide is arranged along the laminar cooling area.

In weiterer Ausgestaltung der Erfindung können längs des Laminar-Kühlbereiches mehrere derartige Seitenführungen vorhanden sein. Damit wird eine vergleichsweise hundertprozentige Stabilität hinsichtlich der Längsführung des Walzgutes erreicht.In a further embodiment of the invention, a plurality of such lateral guides may be present along the laminar cooling area. For a comparatively complete stability with respect to the longitudinal guidance of the rolling stock is achieved.

Zwischen dem Ausgang der Fertigwalzstraße und dem Eingang des Laminar-Kühlbereiches ist in weiterer Ausgestaltung der Erfindung eine die Breite des Walzgutes erfassende Messeinrichtung angeordnet, die signalübertragend mit einer elektronischen Steuerung des Warmwalzwerkes in Verbindung steht. Ferner stehen mit der elektronischen Steuerung signalübertragend zum Beispiel hydraulische Steuermittel zur Beaufschlagung von hydraulischen Kolben-Zylindereinheiten in Verbindung. Die Kolben-Zylindereinheiten sind dabei die Antriebsmittel zum Einstellen der Führungslineale auf etwa die Breite des Walzgutes.Between the output of the finishing train and the entrance of the laminar cooling area, a wide range of the rolling stock detecting measuring device is arranged in a further embodiment of the invention, which communicates signal-transmitting with an electronic control of the hot rolling mill. Furthermore, with the electronic control signal transmitting, for example, hydraulic control means for acting on hydraulic piston-cylinder units in combination. The piston-cylinder units are the drive means for adjusting the guide rulers to about the width of the rolling stock.

Die Erfindung wird nachstehend anhand von Zeichnungen näher erläutert.The invention is explained below with reference to drawings.

In den Zeichnungen zeigen:

Fig.1
die schematische Darstellung des Laminar-Kühlbereiches eines Warmwalzwerkes nach dem Stand der Technik,
Fig.2
die schematische Darstellung des Laminar-Kühlbereiches eines Warmwalzwerkes nach der vorliegenden Erfindung und
Fig.3
die schematische Darstellung der über dem Walzgut im Laminar-Kühlbereich eines Warmwalzwerkes angeordneten Kühlvorrichtung mit Abschirmelementen für flüssiges Kühlmedium in Kombination mit der Seitenführung eines.Rollgangs in der Vorderansicht.
In the drawings show:
Fig.1
the schematic representation of the laminar cooling area of a hot rolling mill according to the prior art,
Fig.2
the schematic representation of the laminar cooling region of a hot rolling mill according to the present invention and
Figure 3
the schematic representation of the above the rolling stock in the laminar cooling area of a hot rolling mill arranged cooling device with shielding elements for liquid cooling medium in combination with the side guide ein.Rollgangs in the front view.

Nach Fig.1 ist ausgangsseitig der Fertigwalzstraße 2 ein Rollgang 3 eines aus mehreren Kühlabschnitten 4.3 bestehenden Laminar-Kühlbereiches 4 eines Warmwalzwerkes 1 ausgebildet. Auf dem Rollgang 3 wird das Walzgut 5 in Gestalt eines warmgewalzten Stahlbandes in Richtung 6 des Pfeils zu einem Haspel 7 transportiert und darauf aufgewickelt. Vor dem Aufwickeln wird das Walzgut 5 aus seiner vorzugsweise horizontalen Transportrichtung 6 mittels eines Treibers 8 abgelenkt.To Fig.1 On the output side of the finishing train 2 is a roller table 3 of a laminar cooling area 4 of a plurality of cooling sections 4.3 Hot rolling mill 1 is formed. On the roller table 3, the rolling stock 5 is transported in the form of a hot-rolled steel strip in the direction 6 of the arrow to a reel 7 and wound thereon. Before winding, the rolling stock 5 is deflected from its preferably horizontal transport direction 6 by means of a driver 8.

Zwischen dem Ausgang 4.2 des Laminar-Kühlbereichs 4 und der Ablenkeinrichtung 8 ist eine an sich bekannte Seitenführung 9 für das Walzgut 5 angeordnet, die jedoch ausschließlich dem kantenbündigen Haspeln des Walzgutes 5 dient.Between the output 4.2 of the laminar cooling region 4 and the deflector 8 a known side guide 9 is arranged for the rolling stock 5, which, however, serves only the edge flush reels of the rolling stock 5.

Der Laminar-Kühlbereich 4 kann, wie hier dargestellt, über seine Längserstreckung aus mehreren Laminar-Kühlabschnitten 4.3 bestehen, wobei jeder Laminar-Kühlabschnitt 4.3 eine an sich bekannte Kühleinrichtung 10 mit Ablenkelementen 10.1, s. a. Fig.3, aufweisen kann.The laminar cooling region 4 can, as shown here, consist over its longitudinal extent of a plurality of laminar cooling sections 4.3, wherein each laminar cooling section 4.3 a known cooling device 10 with deflecting elements 10.1, sa Figure 3 , may have.

In Fig.2 ist der aus dem Stand der Technik bekannte Laminar-Kühlbereich 4 dargestellt, allerdings mit dem Unterschied, dass zwischen zwei aufeinander folgenden Laminar-Kühlabschnitten 4.3 eine aus Führungslinealen 11.1 und 11.2 bestehende Seitenführung 11, s. a. Fig.3, angeordnet ist und dass zwischen dem Ausgang 2.1 der Fertigwalzstraße 2 und dem Eingang 4.1 des Laminar-Kühlbereiches 4 eine Messeinrichtung 12 zur Erfassung der Breite des Walzgutes 4 angeordnet ist.In Fig.2 is the well-known from the prior art laminar cooling section 4 shown, but with the difference that between two successive laminar cooling sections 4.3 consisting of guide rulers 11.1 and 11.2 side guide 11, see also Figure 3 , Is arranged and that between the output 2.1 of the finishing train 2 and the input 4.1 of the laminar cooling area 4, a measuring device 12 for detecting the width of the rolling stock 4 is arranged.

Die Messeinrichtung 12 ist, der Logik folgend, mit einer hier nicht dargestellten elektronischen Steuerung des Warmwalzwerkes signalübertragend zur Verarbeitung des erfassten Messergebnisses verbunden. Entsprechend signalübertragend verbunden mit der elektronischen Steuerung sind des Weiteren zum Beispiel hier nicht dargestellte Steuermittel für hydraulische Kolben-Zylindereinheiten, die als Verstellantrieb der aus einem ersten und zweiten Führungslineal 11.1 und 11.2 bestehenden Seitenführung 11 zugeordnet sind.The measuring device 12 is, following the logic, signal-transmitting connected to an electronic control of the hot rolling mill, not shown here for processing the detected measurement result. According to signal transmitting connected to the electronic control are further, for example, not shown here control means for hydraulic piston-cylinder units, which are assigned as adjustment of existing from a first and second guide ruler 11.1 and 11.2 side guide 11.

In Fig.3 ist eine an sich bekannte Kühlvorrichtung 10 vertikal über dem auf den Rollgang 3 geführten Walzgut 5 positioniert. Die Kühlvorrichtung 10 besitzt Abschirmelemente 10.1 für ein flüssiges Kühlmedium 13.In Figure 3 a cooling device 10 known per se is positioned vertically above the rolling stock 5 guided on the roller table 3. The cooling device 10 has shielding elements 10. 1 for a liquid cooling medium 13.

Gemäß der Erfindung ist zu beiden Seiten des Walzgutes 5 jeweils ein Führungslineal 11.1 und 11.2 positioniert. Beide Führungslineale bilden die Seitenführung 11 aus, die, wie in der Fig.2 dargestellt, zwischen jeweils zwei aufeinander folgenden Laminar-Kühlabschnitten 4.3 angeordnet ist. Jedes der Führungslineale steht mit dem freien Ende der Kolbenstange 14.1 bzw. 15.1 einer vorzugsweise hydraulischen Kolben-Zylindereinheit 14 bzw. 15 in Verbindung, um entsprechend der Breite des Walzgutes 5 auf etwa diese eingestellt zu werden.According to the invention, a guide ruler 11.1 and 11.2 is respectively positioned on both sides of the rolling stock 5. Both guide rulers form the side guide 11, which, as in the Fig.2 shown, between each two consecutive laminar cooling sections 4.3 is arranged. Each of the guide rulers is connected to the free end of the piston rod 14.1 or 15.1 of a preferably hydraulic piston-cylinder unit 14 or 15 in conjunction to be adjusted according to the width of the rolling stock 5 to about this.

Auf die steuerungstechnischen Mittel der Kolben-Zylindereinheiten 14, 15 soll hier nicht weiter eingegangen werden, die diese nicht Gegenstand der Erfindung sind. Bezugszeichenliste 1 Warmwalzwerk 2 Fertigwalzstraße 2.1 Ausgang der Fertigwalzstraße 3 Rollgang 4 Laminar-Kühlbereich 4.1 Eingang des Laminar-Kühlbereiches 4.2 Ausgang des Laminar-Kühlbereiches 4.3 Laminar-Kühlabschnitt 5 Walzgut 6 Transportrichtung 7 Haspel 8 Treiber 9 Seitenführung 10 Kühleinrichtung 10.1 Ablenkelement 11 Seitenführung 11.1 Führungslineal 11.2 Führungslineal 12 Messeinrichtung 13 Kühlmedium 14 Kolben- Zylindereinheit 14.1 Kolbenstange 15 Kolben-Zylindereinheit 15.1 Kolbenstange On the control technical means of the piston-cylinder units 14, 15 will not be discussed here, which are not the subject of the invention. LIST OF REFERENCE NUMBERS 1 Hot Rolling Mill 2 Finishing mill 2.1 Exit of the finishing train 3 roller table 4 Laminar cooling section 4.1 Entrance of the laminar cooling area 4.2 Exit of the laminar cooling area 4.3 Laminar cooling section 5 rolling 6 transport direction 7 reel 8th driver 9 cornering 10 cooling device 10.1 deflector 11 cornering 11.1 guide rule 11.2 guide rule 12 measuring device 13 cooling medium 14 Piston-cylinder unit 14.1 piston rod 15 Piston-cylinder unit 15.1 piston rod

Claims (14)

  1. Method of longitudinally guiding rolling stock, particularly a hot-rolled steel strip, on a roller path (3) of a hot-rolling mill (1), which after leaving the finishing rolling train (2) is transported by way of the roller path in the direction of a coiler (7) and which runs through a laminar cooling region (4) lying between the finishing rolling train and the coiler, characterised in that the rolling stock (5) is guided longitudinally and on both sides of the laminar cooling region (4) by at least one lateral guide.
  2. Method according to claim 1, characterised in that the rolling stock (5) is guided longitudinally and on both sides of the laminar cooling region (4) by a plurality of lateral guides (11).
  3. Method according to claim 1, characterised in that the width of the rolling stock (5) is automatically detected after the rolling stock has passed the finishing rolling train (2).
  4. Method according to any one of the preceding claims, characterised in that the relevant lateral guides (11) are set to the detected rolling stock width after the head of the rolling stock (5) has passed the respective lateral guide.
  5. Method according to claim 4, characterised in that the setting of the lateral guides (11) to the rolling stock width is carried in controlled manner.
  6. Method according to any one of the preceding claims, characterised in that the position of the lateral guides (11) is set in dependence on the position of a cooling device (10), which is arranged above the rolling stock (5), with screening elements (10.1) for a liquid cooling medium.
  7. Method according to any one of the preceding claims, characterised in that the position of a cooling device (10), which is arranged above the rolling stock (5), with screening elements (10.1) for a liquid cooling medium is set in dependence on the position of the lateral guides (11).
  8. Hot-rolling mill with a finishing rolling train, comprising a laminar cooling region (4), which is arranged after the finishing rolling train (2), with a roller path (3) for transport of the rolling stock (5), a coiler (7), which is arranged at the end of the roller path (3), for coiling up the rolling stock (5) and a cooling device (10), which is arranged above the rolling stock (5), with screening elements (10.1) for a liquid cooling medium, characterised in that at least one lateral guide (11) is arranged longitudinally of the laminar cooling region (4).
  9. Hot-rolling mill according to claim 8, characterised in that a plurality of lateral guides (11) is arranged longitudinally of the laminar cooling region (4).
  10. Hot-rolling mill according to claim 8, characterised in that a measuring device (12) detecting the width of the rolling stock (5) is arranged between the outlet (2.1) of the finishing rolling train (2) and the inlet (4.1) of the laminar cooling region (4).
  11. Hot-rolling mill according to claim 8, characterised in that the at least one lateral guide (11) is settable, with respect to a uniform structure and uniform strength characteristics of the rolling stock (5), in dependence on the position of the cooling device (10), which device is arranged above the rolling stock (5), with screening elements (10.1) for a liquid cooling medium.
  12. Hot-rolling mill according to claim 8, characterised in that the position of the cooling device (10), which device is arranged above the rolling stock (5), with screening elements (10.1) for a liquid cooling medium is settable, with respect to a uniform structure and uniform strength characteristics of the rolling stock (5), in dependence on the position of the at least one lateral guide (11).
  13. Hot-rolling mill according to any one of the preceding claims 8 to 12, characterised in that the at least one lateral guide (11) comprises guide strips (11.1, 11.2) which are present on both sides of the rolling stock (5) and which are arranged parallel to one another and to be displaceable relative to one another.
  14. Hot-rolling mill according to claim 13, characterised in that each of the guide strips (11.1, 11.2) is disposed in operative connection with a drive device, which is constructed as a piston-cylinder unit (13) and which produces parallel displacement of the guide strips.
EP09777151.3A 2008-07-12 2009-07-13 Method for longitudinally guiding rolling stock, especially a hot-rolled steel strip, and hot-rolling mill for carrying out said method Not-in-force EP2310152B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008032932A DE102008032932A1 (en) 2008-07-12 2008-07-12 Method for longitudinally guiding a rolling stock, in particular a hot-rolled steel strip and hot rolling mill for carrying out the method
PCT/EP2009/005074 WO2010006750A2 (en) 2008-07-12 2009-07-13 Method for longitudinally guiding rolling stock, especially a hot-rolled steel strip, and hot-rolling mill for carrying out said method

Publications (2)

Publication Number Publication Date
EP2310152A2 EP2310152A2 (en) 2011-04-20
EP2310152B1 true EP2310152B1 (en) 2013-06-26

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Application Number Title Priority Date Filing Date
EP09777151.3A Not-in-force EP2310152B1 (en) 2008-07-12 2009-07-13 Method for longitudinally guiding rolling stock, especially a hot-rolled steel strip, and hot-rolling mill for carrying out said method

Country Status (9)

Country Link
US (1) US20110132054A1 (en)
EP (1) EP2310152B1 (en)
JP (1) JP2011527634A (en)
KR (1) KR101332198B1 (en)
CN (1) CN102089092A (en)
DE (1) DE102008032932A1 (en)
RU (1) RU2466810C2 (en)
UA (1) UA98061C2 (en)
WO (1) WO2010006750A2 (en)

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CN101879531A (en) * 2010-05-31 2010-11-10 北京科技大学 Hot rolled strip laminar cooling device capable of controlling cooled strip shape
CN103492093B (en) * 2011-04-27 2016-01-06 现代制铁株式会社 Vapor lock device
CN102636160B (en) * 2012-04-28 2013-11-13 天津二十冶建设有限公司 Entire lofting method for ultra-long-distance roll-line roller bed bolt of metallurgical industry
EP2666558A1 (en) * 2012-05-21 2013-11-27 Siemens Aktiengesellschaft Lateral guide for a mill train
EP2853315A1 (en) * 2013-09-26 2015-04-01 Siemens VAI Metals Technologies GmbH Device for guiding metal strips with grinding bodies
CN112845619B (en) * 2020-11-19 2023-02-17 邯郸钢铁集团有限责任公司 Method for reducing residual stress at tail of hot-rolled high-strength strip steel
CN115121632B (en) * 2022-07-21 2023-03-10 东北大学 Transverse temperature homogenization control method in hot-rolled strip steel laminar cooling process

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Also Published As

Publication number Publication date
CN102089092A (en) 2011-06-08
EP2310152A2 (en) 2011-04-20
US20110132054A1 (en) 2011-06-09
DE102008032932A1 (en) 2010-01-14
WO2010006750A3 (en) 2010-03-25
RU2011105132A (en) 2012-08-20
KR20110019423A (en) 2011-02-25
JP2011527634A (en) 2011-11-04
KR101332198B1 (en) 2013-11-25
RU2466810C2 (en) 2012-11-20
WO2010006750A2 (en) 2010-01-21
UA98061C2 (en) 2012-04-10

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