EP2516079A2 - Method for hot-rolling a slab and hot-rolling mill - Google Patents

Method for hot-rolling a slab and hot-rolling mill

Info

Publication number
EP2516079A2
EP2516079A2 EP10803583A EP10803583A EP2516079A2 EP 2516079 A2 EP2516079 A2 EP 2516079A2 EP 10803583 A EP10803583 A EP 10803583A EP 10803583 A EP10803583 A EP 10803583A EP 2516079 A2 EP2516079 A2 EP 2516079A2
Authority
EP
European Patent Office
Prior art keywords
slab
cooling
hot rolling
rolling mill
hot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10803583A
Other languages
German (de)
French (fr)
Other versions
EP2516079B1 (en
Inventor
Klaus Berchem
Ingo Schuster
Dirk Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Siemag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44072737&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2516079(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2516079A2 publication Critical patent/EP2516079A2/en
Application granted granted Critical
Publication of EP2516079B1 publication Critical patent/EP2516079B1/en
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • 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
    • 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
    • B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B2001/028—Slabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/06—Thermomechanical rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • B21B2261/21—Temperature profile
    • 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

Definitions

  • the invention relates to a method for hot rolling a slab, in particular a steel slab, wherein the slab is subjected to at least two deformations at different temperatures in a hot rolling mill, wherein the slab is cooled between two such transformations. Furthermore, the invention relates to a hot rolling mill for hot rolling a slab.
  • Hot rolling of a slab is well known in the art.
  • a multi-phase hot rolling is used as a preferred method, wherein a turn special procedure is the thermomechanical see rolling (TM method).
  • a typical application of this method is the production of hot rolled steel strip and sheet from microalloyed steels.
  • the aim is a high homogeneity of the material, which is made from the hot-rolled slab, d. H.
  • the material properties should be spatially constant in the material. To achieve this, the highest possible temperature homogeneity in the slab during hot rolling is required, i. H. the intermediate slab, resulting in even properties of the final product.
  • thermomechanical rolling-intervals are set between the individual rolling phases in which the slab is uniformly cooled to a new, lower temperature. Once the target temperature is reached, the next rolling phase begins. That's it technologically advantageous that the intermediate slabs have a uniform temperature.
  • the present invention is therefore based on the object, a method and an associated rolling mill of the type mentioned in such a way that the above-mentioned disadvantages are avoided. Accordingly, it should be possible to maintain a high quality of the intermediate slab and the end product. Furthermore, the hot rolling process after the first slab cooling should be optimally performed.
  • the solution of this problem by the invention according to the method is characterized in that an active cooling of the slab is carried out so that the lateral borrowed end portions of the slab are subjected to a lower cooling capacity, as a central region of the slab.
  • the cooling of the slab is preferably carried out by applying a cooling medium, wherein the lateral end portions of the slab are at least partially shielded by the cooling medium.
  • the cooling of the slab can take place in an intermediate cooling stand or on a cooling section. By controlling the active cooling, it may be ensured that there is no undesirable transformation of austenite into ferrite during the active cooling phase.
  • the hot rolling of the slab is preferably a multi-phase rolling, in particular a thermomechanical rolling.
  • the proposed hot rolling mill for hot rolling a slab has at least two hot rolling stands, wherein either between these or in front of the roughing stand at least one cooling station is arranged, in which the slab can be cooled.
  • the hot rolling mill is characterized in that the cooling station comprises means by which the cooling power applied to the slab can be varied across the width of the slab, such that the slab is cooled so that the lateral end portions of the slab have a lower cooling capacity be acted as a central region of the slab.
  • the means are according to a preferred embodiment covering elements, which are designed to cover the lateral end portions of the slab for protection against cooling medium.
  • the means are a cooling beam for the application of cooling medium to the slab, wherein the width of the jet of the cooling medium is adjustable over the width of the slab.
  • the cooling station is preferably an intermediate cooling stand or a cooling section.
  • an active intermediate cooling is thus carried out during hot rolling, which is designed so that the side regions (edges) of the slab are not cooled with.
  • active cooling and after a balancing period a slab is obtained which produces a more uniform temperature.
  • the distribution of heat has as a conventionally cooled Brannnne, regardless of whether the cooling is active or passive (in the air).
  • the hot rolling mill is characterized in that the cooling process is optionally controlled by means of a connected temperature calculation in such a way that a drop below the ferrite precipitation temperature can be avoided, so that a possibly undesirable ferrite formation can be ruled out.
  • the hot rolling mill is characterized in that the cooling width is adjusted by electrical or mechanical means to the appropriate cooling width.
  • Fig. 1 shows schematically the side view of a hot rolling mill, wherein only two hot rolling stands are sketched with a cooling station arranged therebetween
  • Fig. 2 shows schematically the section A-B of FIG. 1, shown for the upper
  • a hot rolling mill 2 is sketched in which a slab 1 can be rolled.
  • a number of hot rolling stands 8, 9 are present, with only two of these stands are shown.
  • the slab is conveyed during rolling in the rolling direction W and thereby rolled in a known manner.
  • the slab undergoes thermo-mechanical processing during rolling. Accordingly, the slab 1 in a first hot rolling mill 8 is subjected to thickness reduction.
  • the slab 1 is cooled, for which it is passed through a cooling station 7, which is designed here as an intermediate cooling scaffold.
  • the slab 1 passes under the spray of the cooling medium 6 in the rolling direction W under the chilled beam over (from below, the slab is also - which is not shown - sprayed by a chilled beam), whereby the slab 1 is cooled.
  • cover plates 10 and 11 are present, which are pushed in the direction of the double arrows in the direction of the slab center so that a sufficiently large side region of the slab is prevented from direct contact is protected with cooling medium 6. Meanwhile, the central area 5 of the slab receives the full cooling capacity from the cooling medium.
  • the position of the cover plates 10 and 11 it can be influenced to what extent the side areas 3, 4 of the slab 1 are to be protected, so that overall a homogeneous temperature distribution over the width of the slab 1 can be ensured by selecting the mentioned parameters.
  • the width and the position of the slab are known from the last centering of the slab in front of the cooling station 7 and can from Level 2 will be passed.
  • the setting or positioning of the cover plates 10 and 1 1 is carried out accordingly.
  • FIG. 1 Another embodiment of the present concept is shown in FIG. Thereafter, a cooling bar 12 is used, which covers a sufficient width of the slab 1.
  • slide 10 'and 1 1' are provided on the cooling beam 12, which cover the edge regions of the cooling beam 12 and, in particular, the nozzles located there, so that the width of the cooling jet can be adjusted more or less large.
  • the slide 10 ', 1 1' are moved accordingly in the direction of the double arrow.
  • the effect is the same as in the solution according to FIG. 2.
  • the lateral end regions 3, 4 of the slab 1 are subjected to less cooling medium, while the central region 5 receives the maximum cooling power.
  • the edges of the slab can thus be protected during active cooling either by extending "drawers" (as in the cooling section) - see the solution according to Fig. 2 - or by the fact that only cooling bars are controlled, their spray pattern specifically to a specific slab width
  • the solution according to FIG. 3 is of course conceivable. Of course, other technical implementations of the inventive concept are also possible.

Landscapes

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

Abstract

The invention relates to a method for hot-rolling a slab (1), especially a steel slab, the slab (1) being subjected to at least two shaping steps at different temperatures in a hot-rolling mill (2), the slab (1) being cooled between two such shaping steps. In order to prevent ferrite from forming too soon during the hot-rolling, the slab (1) is cooled such that the lateral end sections (3, 4) of the slab (1) are cooled with a lower cooling efficiency than a center section (5) of the slab (1). The invention further relates to a hot-rolling mill (2) for hot-rolling a slab.

Description

Verfahren zum Warmwalzen einer Bramme und Warmwalzwerk  Method for hot rolling a slab and hot rolling mill
Die Erfindung betrifft ein Verfahren zum Warmwalzen einer Bramme, insbesondere einer Stahlbramme, wobei die Bramme mindestens zweier Umformungen bei verschiedenen Temperaturen in einem Warmwalzwerk unterzogen wird, wobei die Bramme zwischen zwei derartigen Umformungen gekühlt wird. Des weiteren betrifft die Erfindung ein Warmwalzwerk zum Warmwalzen einer Bramme. The invention relates to a method for hot rolling a slab, in particular a steel slab, wherein the slab is subjected to at least two deformations at different temperatures in a hot rolling mill, wherein the slab is cooled between two such transformations. Furthermore, the invention relates to a hot rolling mill for hot rolling a slab.
Das Warmwalzen einer Bramme ist im Stand der Technik hinlänglich bekannt. Dabei wird als ein bevorzugtes Verfahren ein mehrphasiges Warmwalzen eingesetzt, wobei eine wiederum spezielle Verfahrensweise das thermomechani- sehe Walzen (TM Verfahren) ist. Hot rolling of a slab is well known in the art. In this case, a multi-phase hot rolling is used as a preferred method, wherein a turn special procedure is the thermomechanical see rolling (TM method).
Eine typische Anwendung dieses Verfahrens ist die Erzeugung von warmgewalztem Stahlband und -blech aus mikrolegierten Stählen. Ziel ist dabei eine hohe Homogenität des Materials, das aus der warmgewalzten Bramme gefertigt wird, d. h. die Materialeigenschaften sollen im Material räumlich konstant sein. Um dies zu erreichen, ist eine möglichst hohe Temperaturhomogenität in der Bramme während des Warmwalzens erforderlich, d. h. der Zwischenbramme, woraus sich auch gleichmäßige Eigenschaften beim Endprodukt ergeben. A typical application of this method is the production of hot rolled steel strip and sheet from microalloyed steels. The aim is a high homogeneity of the material, which is made from the hot-rolled slab, d. H. The material properties should be spatially constant in the material. To achieve this, the highest possible temperature homogeneity in the slab during hot rolling is required, i. H. the intermediate slab, resulting in even properties of the final product.
Laufen die einzelnen Walzoperationen beim Warmwalzen in mehreren Temperatur-Phasen ab - wie es beim thermomechanischen Walzen typisch ist -, werden zwischen den einzelnen Walzphasen Pausen eingelegt, in denen die Bramme gleichmäßig auf eine neue, niedrigere Temperatur abgekühlt wird. Sobald die Zieltemperatur erreicht ist, beginnt die nächste Walzphase. Dabei ist es technologisch vorteilhaft, dass die Zwischenbrammen eine gleichmäßige Temperatur aufweisen. If the individual rolling operations during hot rolling take place in several temperature phases-as is typical in thermomechanical rolling-intervals are set between the individual rolling phases in which the slab is uniformly cooled to a new, lower temperature. Once the target temperature is reached, the next rolling phase begins. That's it technologically advantageous that the intermediate slabs have a uniform temperature.
Während der Wartezeit kühlen die seitlichen Bereiche der Bramme schneller ab als deren Kern. Die Folge hiervon sind kalte Kanten. Diese kalten Kanten kön- nen bei den sich anschließenden Walzstichen problematisch sein. Weiterhin können sich infolge derer die Eigenschaften des Endprodukts verschlechtern. Da die Wartezeiten zwischen den Walzphasen mit der Brammendicke zunehmen, ist dieses Problem bei dicken Zwischenbrammen besonders häufig anzutreffen. During the waiting time, the lateral areas of the slab cool faster than their core. The consequence of this are cold edges. These cold edges can be problematic in the subsequent rolling passes. Furthermore, as a result of which, the properties of the final product may deteriorate. Since the waiting times between the rolling phases increase with the slab thickness, this problem is particularly common in thick intermediate slabs.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und ein zugehöriges Walzwerk der eingangs genannten Art dahingehend weiterzubilden, dass die oben genannten Nachteile vermieden werden. Demgemäß soll es möglich sein, eine hohe Qualität der Zwischenbramme und des Endpro- dukts aufrechtzuerhalten. Weiterhin soll der Warmwalzprozess nach der ersten Brammenkühlung optimal durchgeführt werden können. The present invention is therefore based on the object, a method and an associated rolling mill of the type mentioned in such a way that the above-mentioned disadvantages are avoided. Accordingly, it should be possible to maintain a high quality of the intermediate slab and the end product. Furthermore, the hot rolling process after the first slab cooling should be optimally performed.
Die Lösung dieser Aufgabe durch die Erfindung ist verfahrensgemäß dadurch gekennzeichnet, dass eine aktive Kühlung der Bramme so erfolgt, dass die seit- liehen Endbereiche der Bramme mit einer geringeren Kühlleistung beaufschlagt werden, als ein mittiger Bereich der Bramme. The solution of this problem by the invention according to the method is characterized in that an active cooling of the slab is carried out so that the lateral borrowed end portions of the slab are subjected to a lower cooling capacity, as a central region of the slab.
Die Kühlung der Bramme erfolgt bevorzugt durch Aufgabe eines Kühlmediums, wobei die seitlichen Endbereiche der Bramme vom Kühlmedium zumindest teil- weise abgeschirmt werden. The cooling of the slab is preferably carried out by applying a cooling medium, wherein the lateral end portions of the slab are at least partially shielded by the cooling medium.
Die Kühlung der Bramme kann in einem Zwischenkühlgerüst oder auf einer Kühlstrecke erfolgen. Durch die Steuerung der Aktiv-Kühlung wird gegebenenfalls sichergestellt, dass es während der Aktivkühlphase nicht zu einer unerwünschten Umwandlung von Austenit in Ferrit kommt. The cooling of the slab can take place in an intermediate cooling stand or on a cooling section. By controlling the active cooling, it may be ensured that there is no undesirable transformation of austenite into ferrite during the active cooling phase.
Das Warmwalzen der Bramme ist dabei bevorzugt ein mehrphasiges Walzen, insbesondere ein thermomechanisches Walzen. The hot rolling of the slab is preferably a multi-phase rolling, in particular a thermomechanical rolling.
Das vorgeschlagene Warmwalzwerk zum Warmwalzen einer Bramme hat mindestens zwei Warmwalzgerüste, wobei entweder zwischen diesen oder vor dem Vorgerüst mindestens eine Kühlstation angeordnet ist, in der die Bramme ab- gekühlt werden kann. Das Warmwalzwerk zeichnet sich dadurch aus, dass die Kühlstation Mittel aufweist, mit denen die auf die Bramme aufgegebene Kühlleistung über der Breite der Bramme verändert werden kann, derart, dass die Kühlung der Bramme so erfolgt, dass die seitlichen Endbereiche der Bramme mit einer geringeren Kühlleistung beaufschlagt werden als ein mittiger Bereich der Bramme. The proposed hot rolling mill for hot rolling a slab has at least two hot rolling stands, wherein either between these or in front of the roughing stand at least one cooling station is arranged, in which the slab can be cooled. The hot rolling mill is characterized in that the cooling station comprises means by which the cooling power applied to the slab can be varied across the width of the slab, such that the slab is cooled so that the lateral end portions of the slab have a lower cooling capacity be acted as a central region of the slab.
Die Mittel sind gemäß einer bevorzugten Ausführungsform Abdeckelemente, die zur Abdeckung der seitlichen Endbereiche der Bramme zum Schutz vor Kühlmedium ausgebildet sind. The means are according to a preferred embodiment covering elements, which are designed to cover the lateral end portions of the slab for protection against cooling medium.
Möglich ist es auch, dass die Mittel ein Kühlbalken zur Ausbringung von Kühlmedium auf die Bramme sind, wobei die Breite des Strahls des Kühlmediums über der Breite der Bramme einstellbar ist. Die Kühlstation ist bevorzugt ein Zwischenkühlgerüst oder eine Kühlstrecke. It is also possible that the means are a cooling beam for the application of cooling medium to the slab, wherein the width of the jet of the cooling medium is adjustable over the width of the slab. The cooling station is preferably an intermediate cooling stand or a cooling section.
Gemäß der Erfindung wird also beim Warmwalzen eine aktive Zwischenkühlung vorgenommen, die so ausgelegt wird, dass die Seitenbereiche (Kanten) der Bramme nicht mit gekühlt werden. Nach dem aktiven Kühlen und nach einer Ausgleichszeit erhält man so eine Bramme, die eine gleichmäßigere Tempera- turverteilung besitzt als eine konventionell gekühlte Brannnne, unabhängig davon, ob die Kühlung aktiv erfolgt oder passiv (an der Luft). According to the invention, an active intermediate cooling is thus carried out during hot rolling, which is designed so that the side regions (edges) of the slab are not cooled with. After active cooling and after a balancing period, a slab is obtained which produces a more uniform temperature. The distribution of heat has as a conventionally cooled Brannnne, regardless of whether the cooling is active or passive (in the air).
Das Warmwalzwerk ist dadurch gekennzeichnet, dass der Kühlvorgang gegebenenfalls mit Hilfe einer angeschlossenen Temperaturberechnung so gesteu- ert wird, dass eine Unterschreitung der Ferrit-Ausscheidungstemperatur vermieden werden kann, so dass eine evtl. unerwünschte Ferritbildung ausgeschlossen werden kann. The hot rolling mill is characterized in that the cooling process is optionally controlled by means of a connected temperature calculation in such a way that a drop below the ferrite precipitation temperature can be avoided, so that a possibly undesirable ferrite formation can be ruled out.
Schließlich ist das Warmwalzwerk dadurch gekennzeichnet, dass die Kühlbreite durch elektrische oder mechanische Einrichtungen auf die entsprechende Kühlbreite eingestellt wird. Finally, the hot rolling mill is characterized in that the cooling width is adjusted by electrical or mechanical means to the appropriate cooling width.
In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigen: In the drawings, embodiments of the invention are shown. Show it:
Fig. 1 schematisch die Seitenansicht eines Warmwalzwerks, wobei lediglich zwei Warmwalzgerüste mit einer dazwischen angeordneten Kühlstation skizziert sind, Fig. 2 schematisch den Schnitt A-B gemäß Fig. 1 , dargestellt für die obere Fig. 1 shows schematically the side view of a hot rolling mill, wherein only two hot rolling stands are sketched with a cooling station arranged therebetween, Fig. 2 shows schematically the section A-B of FIG. 1, shown for the upper
Hälfte der Kühlstation und schematisch den Schnitt A-B gemäß Fig. 1 , dargestellt für die obere Hälfte der Kühlstation, wobei eine alternative Lösung dargestellt ist.  Half of the cooling station and schematically the section A-B of FIG. 1, shown for the upper half of the cooling station, wherein an alternative solution is shown.
In Fig. 1 ist ein Warmwalzwerk 2 skizziert, in dem eine Bramme 1 gewalzt werden kann. Hierfür sind eine Anzahl Warmwalzgerüste 8, 9 vorhanden, wobei nur zwei dieser Gerüste dargestellt sind. Die Bramme wird beim Walzen in Walz- richtung W gefördert und dabei in bekannter Weise gewalzt. Die Bramme wird beim Walzen einer thermo-mechanischen Bearbeitung unterzogen. Demgemäß wird die Bramme 1 in einem ersten Warmwalzgerüst 8 einer Dickenreduktion unterzogen. Hinter dem Gerüst 8 wird die Bramme 1 gekühlt, wofür sie durch eine Kühlstation 7 geleitet wird, die vorliegend als Zwischen- kühlgerüst ausgebildet ist. In Fig. 1, a hot rolling mill 2 is sketched in which a slab 1 can be rolled. For this purpose, a number of hot rolling stands 8, 9 are present, with only two of these stands are shown. The slab is conveyed during rolling in the rolling direction W and thereby rolled in a known manner. The slab undergoes thermo-mechanical processing during rolling. Accordingly, the slab 1 in a first hot rolling mill 8 is subjected to thickness reduction. Behind the framework 8, the slab 1 is cooled, for which it is passed through a cooling station 7, which is designed here as an intermediate cooling scaffold.
Hinter der Kühlstation 7 erfolgt ein nochmaliges Walzen der Bramme 1 , jetzt in einem Warmwalzgerüst 9, und zwar bei einer geringeren Temperatur als im Walzgerüst 8. Die Kühlung der Bramme 1 in der Kühlstation 7 erfolgt durch Aufsprühen eines Kühlmediums 6, hier in Form von Wasser. Hierfür sind an sich bekannte Kühlbalken 12 vorhanden. Behind the cooling station 7, a further rolling of the slab 1, now in a hot rolling stand 9, and at a lower temperature than in the roll stand 8. The cooling of the slab 1 in the cooling station 7 by spraying a cooling medium 6, here in the form of water , For this purpose, known cooling bars 12 are available.
Wie die Kühlung der Bramme 1 nach einer ersten Ausgestaltung erfolgt, ist aus Fig. 2 ersichtlich. Hiernach läuft die Bramme 1 unter dem Sprühstrahl des Kühlmediums 6 in Walzrichtung W unter dem Kühlbalken vorbei (von unten wird die Bramme ebenfalls - was nicht dargestellt ist - von einem Kühlbalken besprüht), wodurch die Bramme 1 abkühlt. Um das Abkühlen in den seitlichen Endbereichen 3 und 4 der Bramme 1 zu reduzieren, sind Abdeckbleche 10 und 1 1 vor- handen, die in Richtung der Doppelpfeile so weit in Richtung Brammenmitte geschoben werden, dass ein hinreichend großer Seitenbereich der Bramme vor dem unmittelbaren Kontakt mit Kühlmedium 6 geschützt wird. Indes erhält der mittige Bereich 5 der Bramme die volle Kühlleistung vom Kühlmedium. Durch Wahl der Position der Abdeckbleche 10 und 1 1 kann darauf Einfluss genommen werden, inwieweit die Seitenbereiche 3, 4 der Bramme 1 geschützt werden sollen, so dass insgesamt durch Wahl der genannten Parameter eine homogene Temperaturverteilung über die Breite der Bramme 1 sichergestellt werden kann. Die Breite und die Position der Bramme sind aus dem letzten Zentriervorgang der Bramme vor der Kühlstation 7 bekannt und können vom Level-2 übergeben werden. Die Einstellung bzw. Positionierung der Abdeckbleche 10 und 1 1 erfolgt entsprechend. As the cooling of the slab 1 takes place according to a first embodiment, it can be seen in FIG. Thereafter, the slab 1 passes under the spray of the cooling medium 6 in the rolling direction W under the chilled beam over (from below, the slab is also - which is not shown - sprayed by a chilled beam), whereby the slab 1 is cooled. In order to reduce the cooling in the lateral end regions 3 and 4 of the slab 1, cover plates 10 and 11 are present, which are pushed in the direction of the double arrows in the direction of the slab center so that a sufficiently large side region of the slab is prevented from direct contact is protected with cooling medium 6. Meanwhile, the central area 5 of the slab receives the full cooling capacity from the cooling medium. By choosing the position of the cover plates 10 and 11, it can be influenced to what extent the side areas 3, 4 of the slab 1 are to be protected, so that overall a homogeneous temperature distribution over the width of the slab 1 can be ensured by selecting the mentioned parameters. The width and the position of the slab are known from the last centering of the slab in front of the cooling station 7 and can from Level 2 will be passed. The setting or positioning of the cover plates 10 and 1 1 is carried out accordingly.
Dennoch wird eine relativ schnelle und damit wirtschaftliche Warmwalzfertigung ermöglicht, da durch die aktive Kühlung in der Kühlstation 7 ein schnelles Küh- len der Bramme 1 erfolgen kann, so dass der sich anschl ießende weitere Warmwalzvorgang im Gerüst 9 bald stattfinden kann. Nevertheless, a relatively fast and therefore economical hot rolling production is made possible because the active cooling in the cooling station 7 allows rapid cooling of the slab 1, so that the subsequent further hot rolling process in the framework 9 can take place soon.
Eine andere Ausführungsform der vorliegenden Konzeption ist in Fig. 3 dargestellt. Hiernach wird ein Kühlbalken 12 eingesetzt, der eine hinreichende Breite der Bramme 1 abdeckt. Allerdings sind Schieber 10' und 1 1 ' am Kühlbalken 12 vorgesehen, die die Randbereiche des Kühlbalkens 12 und namentlich die sich dort befindlichen Düsen abdecken, so dass die Breite des Kühlstrahls mehr oder weniger groß eingestellt werden kann. Hierzu werden die Schieber 10', 1 1 ' in Richtung des Doppelpfeils entsprechend verschoben. Der Effekt ist derselbe, wie bei der Lösung gemäß Fig. 2. Die seitlichen Endbereiche 3, 4 der Bramme 1 werden mit weniger Kühlmedium beaufschlagt, der mittige Bereich 5 indes erhält die maximale Kühlleistung. Another embodiment of the present concept is shown in FIG. Thereafter, a cooling bar 12 is used, which covers a sufficient width of the slab 1. However, slide 10 'and 1 1' are provided on the cooling beam 12, which cover the edge regions of the cooling beam 12 and, in particular, the nozzles located there, so that the width of the cooling jet can be adjusted more or less large. For this purpose, the slide 10 ', 1 1' are moved accordingly in the direction of the double arrow. The effect is the same as in the solution according to FIG. 2. The lateral end regions 3, 4 of the slab 1 are subjected to less cooling medium, while the central region 5 receives the maximum cooling power.
Die Kanten der Bramme können also während der aktiven Kühlung entweder durch ausfahrende„Schubladen" geschützt werden (wie in der Kühlstrecke) - s. Lösung gemäß Fig. 2 - oder dadurch, dass jeweils nur Kühlbalken angesteuert werden, deren Spritzbild speziell auf eine spezifische Brammenbreite ausgelegt ist - s. Lösung gemäß Fig. 3. Natürlich sind auch andere technische Umsetzungen des erfindungsgemäßen Konzepts möglich. The edges of the slab can thus be protected during active cooling either by extending "drawers" (as in the cooling section) - see the solution according to Fig. 2 - or by the fact that only cooling bars are controlled, their spray pattern specifically to a specific slab width The solution according to FIG. 3 is of course conceivable. Of course, other technical implementations of the inventive concept are also possible.
Demgemäß wird das Problem der kalten Kanten der Transferbramme 1 vermieden; die Bramme erhält eine homogene Temperatur über den Querschnitt. Bezugszeichenliste: Accordingly, the problem of the cold edges of the transfer slab 1 is avoided; the slab is given a homogeneous temperature over the cross section. LIST OF REFERENCE NUMBERS
1 Bramme 1 slab
2 Warmwalzwerk  2 hot rolling mill
3 seitlicher Endbereich der Bramme 3 lateral end of the slab
4 seitlicher Endbereich der Bramme4 lateral end of the slab
5 mittiger Bereich der Bramme5 central area of the slab
6 Kühlmedium 6 cooling medium
7 Kühlstation (Zwischenkühlgerüst) 7 cooling station (intermediate cooling stand)
8 Warmwalzgerüst 8 hot rolling stand
9 Warmwalzgerüst  9 hot rolling stand
10 Mittel zum Abdecken  10 means of covering
10' Mittel zum Abdecken  10 'means for covering
1 1 Mittel zum Abdecken  1 1 means for covering
1 1 ' Mittel zum Abdecken  1 1 'means for covering
12 Kühlbalken w Walzrichtung  12 chilled beam w rolling direction

Claims

Patentansprüche: claims:
1 . Verfahren zum Warmwalzen einer Bramme (1 ), insbesondere einer Stahlbramme, wobei die Bramme (1 ) mindestens zweier Umformungen bei verschiedenen Temperaturen in einem Warmwalzwerk (2) unterzogen wird, wobei die Bramme (1 ) zwischen zwei derartigen Umformungen aktiv gekühlt wird, dadurch gekennzeichnet, dass die Kühlung der Bramme (1 ) so erfolgt, dass die seitlichen Endbereiche (3, 4) der Bramme (1 ) mit einer geringeren Kühlleistung beaufschlagt werden als ein mittiger Bereich (5) der Bramme (1 ). 1 . Method for hot rolling a slab (1), in particular a steel slab, wherein the slab (1) is subjected to at least two deformations at different temperatures in a hot rolling mill (2), wherein the slab (1) is actively cooled between two such deformations, characterized in that the cooling of the slab (1) takes place in such a way that the lateral end areas (3, 4) of the slab (1) are subjected to a lower cooling capacity than a central area (5) of the slab (1).
2. Verfahren nach Anspruch 1 , 2. The method according to claim 1,
dadurch gekennzeichnet,  characterized,
dass die Kühlung der Bramme (1 ) durch Aufgabe eines Kühlmediums (6) erfolgt, wobei die seitlichen Endbereiche (3, 4) der Bramme (1 ) vom Kühlmedium (6) zumindest teilweise abgeschirmt werden.  in that the cooling of the slab (1) takes place by discharging a cooling medium (6), wherein the lateral end regions (3, 4) of the slab (1) are at least partially shielded by the cooling medium (6).
Verfahren nach Anspruch 1 oder 2, Method according to claim 1 or 2,
dadurch gekennzeichnet,  characterized,
dass die Kühlung der Bramme (1 ) in einem Zwischenkühlgerüst (7) erfolgt.  the cooling of the slab (1) takes place in an intermediate cooling stand (7).
4. Verfahren nach Anspruch 1 oder 2, 4. The method according to claim 1 or 2,
dadurch gekennzeichnet, dass die Kühlung der Bramme (1 ) auf einer Kühlstrecke erfolgt. characterized, that the cooling of the slab (1) takes place on a cooling line.
5. Verfahren nach einem der Ansprüche 1 bis 4, 5. The method according to any one of claims 1 to 4,
dadurch gekennzeichnet,  characterized,
dass das Warmwalzen der Bramme (1 ) ein mehrphasiges Walzen ist, insbesondere ein thermomechanisches Walzen.  that the hot rolling of the slab (1) is a multi-phase rolling, in particular a thermomechanical rolling.
6. Warmwalzwerk (2) zum Warmwalzen einer Bramme (1 ), insbesondere einer Stahlbramme, wobei das Warmwalzwerk (2) mindestens zwei Warmwalzgerüste (8, 9) aufweist und wobei zwischen diesen oder vor dem Vorgerüst mindestens eine Kühlstation (7) angeordnet ist, in der die Bramme (1 ) abgekühlt werden kann, dadurch gekennzeichnet, dass die Kühlstation (7) Mittel (10, 1 1 ; 10', 1 1 ', 12) aufweist, mit denen die auf die Bramme (1 ) aufgegebene Kühlleistung über der Breite der Bramme (1 ) verändert werden kann, derart, dass die Kühlung der Bramme (1 ) so erfolgt, dass die seitlichen Endbereiche (3, 4) der Bramme (1 ) mit einer geringeren Kühlleistung beaufschlagt werden als ein mittiger Bereich (5) der Bramme (1 ). 6. hot rolling mill (2) for hot rolling a slab (1), in particular a steel slab, wherein the hot rolling mill (2) has at least two hot rolling stands (8, 9) and wherein between these or in front of the roughing stand at least one cooling station (7) is arranged, in which the slab (1) can be cooled, characterized in that the cooling station (7) means (10, 1 1; 10 ', 1 1', 12), with which the on the slab (1) abandoned cooling capacity over the width of the slab (1) can be changed, such that the cooling of the slab (1) takes place so that the lateral end regions (3, 4) of the slab (1) are subjected to a lower cooling power than a central region (5 ) of the slab (1).
7. Warmwalzwerk nach Anspruch 6, dadurch gekennzeichnet, dass die Mittel (10, 1 1 ) Abdeckelemente sind, die zur Abdeckung der seitlichen Endbereiche (3, 4) der Bramme (1 ) zum Schutz vor Kühlmedium (6) ausgebildet sind. Warmwalzwerk nach Anspruch 6, dadurch gekennzeichnet, dass die Mittel (10', 1 1 ', 12) ein Kühlbalken (12) zur Ausbringung von Kühlmedium (6) auf die Bramme (1 ) sind, wobei die Breite des Strahls des Kühlmediums (6) über der Breite der Bramme (1 ) einstellbar (10', 1 1 ') ist. 7. hot rolling mill according to claim 6, characterized in that the means (10, 1 1) are cover elements, which are designed to cover the lateral end portions (3, 4) of the slab (1) for protection against cooling medium (6). Hot rolling mill according to claim 6, characterized in that the means (10 ', 11', 12) are a cooling beam (12) for applying cooling medium (6) to the slab (1), the width of the jet of the cooling medium (6 ) is adjustable over the width of the slab (1) (10 ', 11').
Warmwalzwerk nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Kühlstation (7) ein Zwischenkühlgerüst ist. Hot rolling mill according to one of claims 6 to 8, characterized in that the cooling station (7) is an intermediate cooling stand.
Warmwalzwerk nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Kühlstation (7) eine Kühlstrecke ist. Hot rolling mill according to one of claims 6 to 8, characterized in that the cooling station (7) is a cooling section.
Warmwalzwerk nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass der Kühlvorgang gegebenenfalls mit Hilfe einer angeschlossenen Temperaturberechnung so gesteuert wird, dass eine Unterschreitung der Ferrit-Ausscheidungstemperatur vermieden werden kann, Hot rolling mill according to one of the preceding claims, characterized in that the cooling process is optionally controlled by means of a connected temperature calculation so that an undershooting of the ferrite precipitation temperature can be avoided,
so dass eine evtl . unerwünschte Ferritbildung ausgeschlossen werden kann. so that a possibly. unwanted ferrite formation can be excluded.
Warmwalzwerk nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, das die Kühlbreite durch elektrische oder mechanische Einrichtungen auf die entsprechende Kühlbreite eingestellt wird. Hot rolling mill according to one of the preceding claims, characterized in that the cooling width is adjusted by electrical or mechanical means to the corresponding cooling width.
EP10803583.3A 2009-12-23 2010-12-06 Method for hot-rolling a slab and hot-rolling mill Revoked EP2516079B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009060256A DE102009060256A1 (en) 2009-12-23 2009-12-23 Method for hot rolling a slab and hot rolling mill
PCT/EP2010/068904 WO2011076544A2 (en) 2009-12-23 2010-12-06 Method for hot-rolling a slab and hot-rolling mill

Publications (2)

Publication Number Publication Date
EP2516079A2 true EP2516079A2 (en) 2012-10-31
EP2516079B1 EP2516079B1 (en) 2015-02-11

Family

ID=44072737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10803583.3A Revoked EP2516079B1 (en) 2009-12-23 2010-12-06 Method for hot-rolling a slab and hot-rolling mill

Country Status (7)

Country Link
US (1) US20120297849A1 (en)
EP (1) EP2516079B1 (en)
KR (1) KR101421976B1 (en)
CN (1) CN102655959B (en)
DE (1) DE102009060256A1 (en)
RU (1) RU2528560C2 (en)
WO (1) WO2011076544A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110891702A (en) * 2017-07-24 2020-03-17 首要金属科技奥地利有限责任公司 Roller frame with frame cooler for cooling steel strip

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103551397B (en) * 2013-10-21 2015-11-04 中冶赛迪上海工程技术有限公司 A kind of rolling line temperature regulating device process equipment
CN106944492A (en) * 2016-01-06 2017-07-14 天津皕劼同创精密钛铸造有限公司 A kind of preparation method of TA17 titanium alloy plates
JP6439943B2 (en) * 2016-03-31 2018-12-19 Ｊｆｅスチール株式会社 Steel plate bottom surface cooling method and cooling device
WO2018103841A1 (en) 2016-12-07 2018-06-14 Ebner Industrieofenbau Gmbh Temperature control device for the temperature control of a component
WO2018179449A1 (en) * 2017-03-31 2018-10-04 新日鐵住金株式会社 Device and method for cooling hot-rolled steel sheet
DE102017220891A1 (en) * 2017-11-22 2019-05-23 Sms Group Gmbh Method for cooling a metallic material and cooling beam
DE102018205685A1 (en) * 2018-04-13 2019-10-17 Sms Group Gmbh Cooling device and method for its operation
CN110238207A (en) * 2019-05-29 2019-09-17 北京科技大学 A kind of edge part shading device for Strip control cooling system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153688A1 (en) 1984-02-20 1985-09-04 Nippon Steel Corporation Method of cooling hot steel plates

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832511A (en) * 1981-08-21 1983-02-25 Nippon Kokan Kk <Nkk> Method and device for cooling thick steel plate
GB8829272D0 (en) * 1988-12-15 1989-01-25 Davy Mckee Sheffield The operation of a multi-stand hot rolling mill
JPH07150229A (en) * 1993-11-26 1995-06-13 Kawasaki Steel Corp Apparatus for control-cooling hot rolled thick steel plate
US5545269A (en) * 1994-12-06 1996-08-13 Exxon Research And Engineering Company Method for producing ultra high strength, secondary hardening steels with superior toughness and weldability
DE19611782C2 (en) * 1996-03-13 1999-08-19 Mannesmann Ag Method and device for producing a hollow body from solid round steel
DE19632448A1 (en) * 1996-08-05 1998-02-12 Mannesmann Ag Process and plant for producing strip from low-carbon and ultra-low-carbon steels
DE19725434C2 (en) * 1997-06-16 1999-08-19 Schloemann Siemag Ag Process for rolling hot wide strip in a CSP plant
ITMI20021996A1 (en) * 2002-09-19 2004-03-20 Giovanni Arvedi PROCESS AND PRODUCTION LINE FOR THE MANUFACTURE OF ULTRA-THIN HOT TAPE BASED ON THE TECHNOLOGY OF THE THIN SHEET
DE102008049537A1 (en) * 2008-09-30 2010-04-01 Sms Siemag Aktiengesellschaft Method and apparatus for cooling a sliver or strip of a metal strand in a hot rolling mill
EP2305392A1 (en) * 2009-10-05 2011-04-06 Siemens Aktiengesellschaft Method for rolling rolled goods and rolling mill train with at least one roller frame for thermomechanical milling of rolled goods
JP5577353B2 (en) * 2009-12-08 2014-08-20 本田技研工業株式会社 Workpiece punching manufacturing method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153688A1 (en) 1984-02-20 1985-09-04 Nippon Steel Corporation Method of cooling hot steel plates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110891702A (en) * 2017-07-24 2020-03-17 首要金属科技奥地利有限责任公司 Roller frame with frame cooler for cooling steel strip
CN110891702B (en) * 2017-07-24 2021-10-15 首要金属科技奥地利有限责任公司 Roller frame with frame cooler for cooling steel strip

Also Published As

Publication number Publication date
KR101421976B1 (en) 2014-07-22
CN102655959A (en) 2012-09-05
US20120297849A1 (en) 2012-11-29
RU2528560C2 (en) 2014-09-20
WO2011076544A3 (en) 2011-08-18
CN102655959B (en) 2016-05-18
WO2011076544A2 (en) 2011-06-30
DE102009060256A1 (en) 2011-06-30
RU2012131155A (en) 2014-01-27
EP2516079B1 (en) 2015-02-11
KR20120102740A (en) 2012-09-18

Similar Documents

Publication Publication Date Title
EP2516079B1 (en) Method for hot-rolling a slab and hot-rolling mill
DE69730750T2 (en) METHOD FOR PRODUCING A STEEL STRIP
AT504782B1 (en) METHOD FOR PRODUCING A HOT-ROLLED STEEL STRIP AND COMBINED CASTING AND ROLLING MACHINE TO PERFORM THE METHOD
DE69814513T2 (en) Rolling process and mill for thin flat products
EP1951916B1 (en) Method and finishing train for hot-rolling starting material
EP2462248B1 (en) Method and device for producing a microalloyed steel, in particular a pipe steel
WO2009027045A1 (en) Method and device for the production of a metal strip by roll casting
EP1937429A1 (en) Method and apparatus for continuous casting
WO2002011915A1 (en) Production method and installation for producing thin flat products
EP3341142B1 (en) Method for operating an installation based on the csp concept
EP2964404A1 (en) Method for producing a metal strip by casting and rolling
EP2651578B2 (en) Rolling mill for producing steel for tubes and thin strip
WO2011067315A1 (en) Hot rolling mill and method for hot rolling a metal strip or sheet
EP2663412B1 (en) Equipment and method for producing hot-rolled strips
DE4009861C2 (en) Process for the production of hot-rolled bar material such as fine steel or wire and plant for carrying out the process
EP3713685B1 (en) Cooling bar and cooling process with variable cooling rate for steel sheets
WO2015014864A1 (en) Casting and rolling plant and method for producing slabs
DE102022208817A1 (en) Casting rolling plant and method for its operation
WO2023186471A1 (en) Roll casting installation and method for operating same
WO2022194467A1 (en) Installation and method for cold-rolling a metal strip from steel
DE1427800A1 (en) Rolling mill systems for the production of heavy and medium plates from raw, pre-cast or continuous cast slabs and processes for operating such rolling mill systems
WO2013034432A1 (en) Method and device for descaling a surface of a metal semi-finished product

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20120723

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

INTG Intention to grant announced

Effective date: 20140820

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 709740

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150315

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010008881

Country of ref document: DE

Effective date: 20150326

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20150211

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Owner name: SMS GROUP GMBH

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

Ref country code: ES

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

Effective date: 20150211

Ref country code: FI

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

Effective date: 20150211

Ref country code: SE

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

Effective date: 20150211

Ref country code: HR

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

Effective date: 20150211

Ref country code: LT

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

Effective date: 20150211

Ref country code: NO

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

Effective date: 20150511

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502010008881

Country of ref document: DE

Representative=s name: HEMMERICH & KOLLEGEN, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502010008881

Country of ref document: DE

Owner name: SMS GROUP GMBH, DE

Free format text: FORMER OWNER: SMS SIEMAG AG, 40237 DUESSELDORF, DE

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

Ref country code: NL

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

Effective date: 20150211

Ref country code: LV

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

Effective date: 20150211

Ref country code: GR

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

Effective date: 20150512

Ref country code: IS

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

Effective date: 20150611

Ref country code: RS

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

Effective date: 20150211

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

Ref country code: RO

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

Effective date: 20150211

Ref country code: DK

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

Effective date: 20150211

Ref country code: SK

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

Effective date: 20150211

Ref country code: CZ

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

Effective date: 20150211

Ref country code: EE

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

Effective date: 20150211

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502010008881

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

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

Ref country code: PL

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

Effective date: 20150211

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

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: PRIMETALS TECHNOLOGIES AUSTRIA GMBH

Effective date: 20151111

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

Ref country code: SI

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

Effective date: 20150211

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

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

Free format text: ORIGINAL CODE: EPIDOSNOBS3

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

Ref country code: BE

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

Effective date: 20151231

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

Ref country code: MC

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

Effective date: 20150211

Ref country code: LU

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

Effective date: 20151206

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20151206

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160831

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

Ref country code: LI

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

Effective date: 20151231

Ref country code: IE

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

Effective date: 20151206

Ref country code: CH

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

Effective date: 20151231

Ref country code: GB

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

Effective date: 20151206

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

Ref country code: FR

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

Effective date: 20151231

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: PRIMETALS TECHNOLOGIES AUSTRIA GMBH

Effective date: 20151111

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

Ref country code: BG

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

Effective date: 20150211

Ref country code: HU

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

Effective date: 20101206

Ref country code: SM

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

Effective date: 20150211

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

Ref country code: CY

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

Effective date: 20150211

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

Ref country code: MT

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

Effective date: 20150211

REG Reference to a national code

Ref country code: DE

Ref legal event code: R064

Ref document number: 502010008881

Country of ref document: DE

Ref country code: DE

Ref legal event code: R103

Ref document number: 502010008881

Country of ref document: DE

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

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

Ref country code: DE

Payment date: 20171211

Year of fee payment: 8

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

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

Ref country code: AT

Payment date: 20171221

Year of fee payment: 8

27W Patent revoked

Effective date: 20171018

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

Ref country code: IT

Payment date: 20171221

Year of fee payment: 8

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

Ref country code: MK

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

Effective date: 20150211

REG Reference to a national code

Ref country code: AT

Ref legal event code: MA03

Ref document number: 709740

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171018

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

Ref country code: AL

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

Effective date: 20150211

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

Ref country code: PT

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

Effective date: 20150211

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

Ref country code: TR

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

Effective date: 20150211