EP2467221B1 - Method for producing a hot-rolled strip by means of strip casting, wherein the material properties can be adjusted over the strip cross-section - Google Patents

Method for producing a hot-rolled strip by means of strip casting, wherein the material properties can be adjusted over the strip cross-section Download PDF

Info

Publication number
EP2467221B1
EP2467221B1 EP10749463.5A EP10749463A EP2467221B1 EP 2467221 B1 EP2467221 B1 EP 2467221B1 EP 10749463 A EP10749463 A EP 10749463A EP 2467221 B1 EP2467221 B1 EP 2467221B1
Authority
EP
European Patent Office
Prior art keywords
strip
gas
jet
material properties
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.)
Not-in-force
Application number
EP10749463.5A
Other languages
German (de)
French (fr)
Other versions
EP2467221A1 (en
Inventor
Karl-Heinz Spitzer
Volker Flaxa
Joachim Kroos
Hellfried Eichholz
Markus SCHÄPERKÖTTER
Rune SCHMIDT-JÜRGENSEN
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.)
Salzgitter Flachstahl GmbH
Original Assignee
Salzgitter Flachstahl GmbH
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
Application filed by Salzgitter Flachstahl GmbH filed Critical Salzgitter Flachstahl GmbH
Publication of EP2467221A1 publication Critical patent/EP2467221A1/en
Application granted granted Critical
Publication of EP2467221B1 publication Critical patent/EP2467221B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt

Definitions

  • the invention relates to a method for producing hot strip by means of strip casting with adjustable over the strip cross-section material properties according to the preamble of claim 1.
  • the primary material suppliers try to meet these requirements by providing load-optimized steel sheets or strips (eg Taylored welded or Taylored rolled blanks), which are optimized for sheet thickness according to the expected loads or consist of materials of different strengths.
  • load-optimized steel sheets or strips eg Taylored welded or Taylored rolled blanks
  • Such steel sheets or strips must meet comparatively high requirements in terms of strength, ductility, toughness, energy absorption and processability, for example by cold forming, welding and / or surface treatment.
  • a disadvantage in the production of load-optimized steel sheets are the elaborate cutting and joining processes and sharp property gradients in the material transition in the welded sheet metal blanks.
  • a method for producing a composite steel strip is z. B. from the DE 101 24 594 A1 known. Thereafter, a ferritic core tape directly cast by the two-roll method is plated with an austenitic or high-alloy ferritic plating tape.
  • a method for producing hot strips of lightweight steel by means of a horizontal strip caster is z. B. from the Journal of Steel Research 74 (2003), no. 11/12, page 724 - 731 , known.
  • melt is fed from a feed vessel via a runner onto a revolving casting belt of a horizontal strip casting plant.
  • the abandoned melt solidifies to a pre-strip with a thickness in the range between 6 - 20 mm. After solidification, the pre-strip is subjected to a hot rolling process.
  • the publication DE 199 18 581 A1 discloses the casting of thin strips of carbon steels, wherein the strip strength is increased by subjecting the strip to a carburizing or nitriding treatment. This can be done directly after casting or after casting and subsequent cold rolling and annealing.
  • the object of the invention is to specify a method for producing composite materials with a steel matrix by means of horizontal strip casting, with which the required material properties can be set variably over the strip cross section.
  • the teaching of the invention acts on the still liquid and / or just beginning of solidification steel melt from a metallic and / or non-metallic, the material properties of the hot strip influencing elements existing gas or plasma jet, wherein by changing the acting kinetic energy of the gas or plasma , the gas partial pressure and / or the applied temperature, the concentration of the introduced via the gas or plasma jet into the melt and there einiffund Schlierenden elements over the strip thickness and bandwidth is set.
  • the inventive method is basically suitable for the production of hot strips of various metallic materials, especially for high-alloy lightweight steels.
  • the method according to the invention offers for the first time in an advantageous manner the possibility of specifically taking into account the specific requirements of the material properties of the finished component, in which these can be adjusted in a targeted manner both via the strip thickness and over the strip width.
  • gaseous, vaporous or in the state of the plasma alloy constituents are applied by means of appropriate deposition on the matrix of still liquid or just beginning to solidification molten steel, wherein the gas or plasma vapor contained metallic and / or non-metallic elements in the matrix diffuse.
  • These may, for example, also be alloying elements in which the solubility in the iron is limited at normal liquidus temperatures and thus can not be introduced into the matrix via conventional production processes due to material incompatibilities, metallurgical segregation, evaporation, etc.
  • gas jet solid particles such.
  • metal or ceramic particles are added (aerosols), so that are provided with corresponding novel properties with the inventive method completely novel composite or gradient materials.
  • the gas z. B. from N 2 , CO, CO 2 , inert or reducing gases and, depending on requirements cold or preheated impinge on the molten bath surface.
  • the gas molecules By adjusting the kinetic energy of the gas partial pressure and optionally the temperature, the gas molecules, starting from the strip surface, diffuse with a specifically adjustable gradient in the strip thickness direction and correspondingly influence the material properties of the solidified strip.
  • a hardness gradient can be set in a targeted manner via the strip thickness.
  • the plasma z. B. also consist of metal vapors, which any alloying elements can be introduced into the material in order to influence the material properties targeted.
  • the gas or plasma jet is applied over the entire width of the casting belt or is variably adjustable.
  • the casting belt across the width only partially applied to the required locations or over the entire width.
  • the material properties over the length of the cast strip can be adjusted via a variable gas or plasma jet.
  • This can be achieved, for example, by activating or deactivating the gas or plasma jet loading, which is normally arranged in a stationary manner during the belt transport, or steers in its intensity steplessly or stepwise.
  • the loading of the belt with a gas or plasma jet can not only be used for introducing elements into the strip material but also advantageously the energy contained in the plasma jet can be used, for example, to subject elements already introduced by a gas jet to a targeted heat treatment for example, a diffusion gain to achieve.
  • the plasma jet z. B. targeted "traces" are introduced with altered material properties in the band.
  • FIG. 1 are shown in the schematic representation of a horizontal strip casting the principle possible Einwirkstellen for the gas or plasma jets targeted for influencing the material properties of the steel strip.
  • a melting vessel 1 is fed from the liquid molten steel 8 via a feed vessel 2 of a runner 3, so that the melt 8 is fed through a pouring nozzle 4 on to a front guide roller 6 and rear guide roller 7 encircling casting belt 5.
  • the casting belt 5 is supported between the deflecting rollers 6 and 7 by carrying rollers 9 between which cooling nozzles 10 are arranged for belt cooling.
  • the illustrated rotation arrows on the deflection rollers 6 and 7 characterize the conveying direction of the solidifying cast strand 11.
  • the melt is still liquid at the top of the strand.
  • the melt is inoculated with gas / vapor-shaped metallic and / or non-metallic elements and due to the pressure exerted on the melt by the conveying medium generated flows in the melt controlled mixed.
  • the resulting larger surface area and creation of new surfaces results in an increase in the diffusible amount of particles.
  • the surface solidification of the cast strand has already begun.
  • the porous surface makes it possible for atoms deposited at this point to diffuse from the medium (eg gases or vapors) from the surface into the solid material.
  • the admission of the band with gas or plasma jets can take place either at one of the two contact points or at both together both offset in time, and simultaneously.
  • the material or later component properties in the band can be set quasi precise location.

Landscapes

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

Description

Die Erfindung betrifft ein Verfahren zum Erzeugen von Warmband mittels Bandgießen mit über den Bandquerschnitt einstellbaren Werkstoffeigenschaften gemäß dem Oberbegriff des Anspruches 1.The invention relates to a method for producing hot strip by means of strip casting with adjustable over the strip cross-section material properties according to the preamble of claim 1.

Der stark umkämpfte Automobilmarkt zwingt die Hersteller ständig, nach Lösungen zur Senkung des Flottenverbrauchs unter Beibehaltung eines höchstmöglichen Komforts und Insassenschutzes zu suchen. Dabei spielt einerseits die Gewichtsersparnis aller Fahrzeugkomponenten eine entscheidende Rolle andererseits aber auch ein die passive Sicherheit der Passagiere förderndes Verhalten der einzelnen Bauteile bei hohen statischen und dynamischen Beanspruchungen im Betrieb und im Crashfall.The highly competitive automotive market is constantly forcing manufacturers to seek solutions to reduce fleet consumption while maintaining the highest possible comfort and occupant safety. On the one hand, the weight saving of all vehicle components plays a decisive role, on the other hand, but also the passive safety of the passengers promoting behavior of the individual components with high static and dynamic stresses during operation and in the event of a crash.

Die Vormaterial-Lieferanten versuchen diesen Anforderungen durch die Bereitstellung belastungsoptimierter Bleche oder Bänder aus Stahl (z. B. Taylored welded oder Taylored rolled Blanks) Rechnung zu tragen, die entsprechend den zu erwartenden Belastungen blechdickenoptimiert sind oder aus unterschiedlich festen Werkstoffen bestehen.The primary material suppliers try to meet these requirements by providing load-optimized steel sheets or strips (eg Taylored welded or Taylored rolled blanks), which are optimized for sheet thickness according to the expected loads or consist of materials of different strengths.

Derartige Bleche oder Bänder aus Stahl müssen vergleichsweise hohen Anforderungen hinsichtlich Festigkeit, Dehnfähigkeit, Zähigkeit, Energieaufnahme und Verarbeitbarkeit beispielsweise durch Kaltumformen, Schweißen und/oder Oberflächenbehandeln, genügen.Such steel sheets or strips must meet comparatively high requirements in terms of strength, ductility, toughness, energy absorption and processability, for example by cold forming, welding and / or surface treatment.

Nachteilig bei der Herstellung belastungsoptimierter Bleche aus Stahl sind bei den geschweißten Blechplatinen die aufwändigen Schneid- und Fügeprozesse sowie scharfe Eigenschaftsgradienten beim Werkstoffübergang.A disadvantage in the production of load-optimized steel sheets are the elaborate cutting and joining processes and sharp property gradients in the material transition in the welded sheet metal blanks.

Ein Verfahren zum Herstellen eines Verbundbandes aus Stahl ist z. B. aus der DE 101 24 594 A1 bekannt. Hiernach wird ein nach dem Zweirollenverfahren direkt gegossenes ferritisches Kernband mit einem austenitischen oder hochlegierten ferritischen Plattierungsband plattiert.A method for producing a composite steel strip is z. B. from the DE 101 24 594 A1 known. Thereafter, a ferritic core tape directly cast by the two-roll method is plated with an austenitic or high-alloy ferritic plating tape.

Nachteil ist hier der durch die Plattierung bedingte scharfe Sprung der Eigenschaften des Verbundwerkstoffes, der die den jeweiligen Anforderungen entsprechende optimale Anpassung der Eigenschaften über die Banddicke erschwert. Des Weiteren können die Eigenschaften über die Bandbreite nicht variiert werden.Disadvantage here is the sharp jump in the properties of the composite material due to the plating, which complicates the optimal adaptation of the properties over the strip thickness corresponding to the respective requirements. Furthermore, the properties can not be varied over the bandwidth.

Ein Verfahren zum Erzeugen von Warmbändern aus Leichtbaustahl mittels einer horizontalen Bandgießanlage ist z. B. aus der Fachzeitschrift steel research 74 (2003), No. 11/12, page 724 - 731 , bekannt. Bei diesem Verfahren wird Schmelze aus einem Zulaufgefäß über eine Gießrinne auf ein umlaufendes Gießband einer horizontalen Bandgießanlage aufgegeben. Durch intensive Kühlung des Gießbandes erstarrt die aufgegebene Schmelze zu einem Vorband mit einer Dicke im Bereich zwischen 6 - 20 mm. Nach der Durcherstarrung wird das Vorband einem Warmwalzprozess unterzogen.A method for producing hot strips of lightweight steel by means of a horizontal strip caster is z. B. from the Journal of Steel Research 74 (2003), no. 11/12, page 724 - 731 , known. In this process, melt is fed from a feed vessel via a runner onto a revolving casting belt of a horizontal strip casting plant. By intensive cooling of the casting belt, the abandoned melt solidifies to a pre-strip with a thickness in the range between 6 - 20 mm. After solidification, the pre-strip is subjected to a hot rolling process.

Mit diesem Verfahren lassen sich in idealer Weise z. B. hochmanganhaltige Leichtbaustähle herstellen, die sich über konventionelle Verfahren, wie Stranggießen, nur schwer erzeugen lassen.With this method can be in an ideal way z. B. produce high manganese lightweight steels that can be difficult to produce over conventional methods, such as continuous casting.

Aus der JP 58 179542 A ist ein Verfahren bekannt, mit dem Feststoffpartikel gleichmäßig verteilt in eine Metallschmelze eingebracht werden können. Die Druckschrift DE 34 24 061 A1 offenbart ein Verfahren zur Herstellung einer superabgeschreckten Legierung mit darin dispergierten Sekündärphasen-Teilchen. Die Druckschrift US 4,523,625 A offenbart wiederum ein Verfahren zur Erzeugung einer amorphen Legierung in der Feststoffpartikel gleichmäßig verteilt eingebracht sind.From the JP 58 179542 A a method is known, can be introduced evenly distributed in the molten metal with the solid particles. The publication DE 34 24 061 A1 discloses a method of making a superquenched alloy having secondary second phase particles dispersed therein. The publication US 4,523,625 A again discloses a method of producing an amorphous alloy in which solid particles are uniformly distributed.

Die Druckschrift DE 199 18 581 A1 offenbart das Gießen von dünnen Bändern aus Kohlenstoffstählen, wobei die Bandfestigkeit dadurch erhöht wird, dass man das Band einer Carburierung- oder Nitrierungs-Behandlung unterwirft. Dies kann direkt nach dem Gießen erfolgen oder nach dem Gießen und anschließenden Kaltwalzen und Glühen.The publication DE 199 18 581 A1 discloses the casting of thin strips of carbon steels, wherein the strip strength is increased by subjecting the strip to a carburizing or nitriding treatment. This can be done directly after casting or after casting and subsequent cold rolling and annealing.

Bislang ist es mit diesen bekannten Bandgießverfahren jedoch nicht möglich Warmbänder aus Stahl herzustellen, die über den Bandquerschnitt belastungsoptimierte Werkstoffeigenschaften aufweisen.So far, however, it has not been possible with these known strip casting methods to produce hot strips of steel which have load-optimized material properties over the strip cross section.

Aufgabe der Erfindung ist es, ein Verfahren zum Erzeugen von Verbundwerkstoffen mit einer Stahlmatrix mittels horizontalem Bandgießen anzugeben, mit dem über den Bandquerschnitt die geforderten Werkstoffeigenschaften variabel eingestellt werden können.The object of the invention is to specify a method for producing composite materials with a steel matrix by means of horizontal strip casting, with which the required material properties can be set variably over the strip cross section.

Diese Aufgabe wird ausgehend vom Oberbegriff in Verbindung mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst. Vorteilhafte Weiterbildungen sowie eine Vorrichtung zum Erzeugen von Warmbändern sind Gegenstand von Unteransprüchen.This object is achieved starting from the preamble in conjunction with the characterizing features of claim 1. Advantageous developments and an apparatus for producing hot strips are the subject of dependent claims.

Nach der Lehre der Erfindung wirkt auf die noch flüssige und/oder gerade im Erstarrungsbeginn befindliche Stahlschmelze ein aus metallischen und/oder nichtmetallischen, die Werkstoffeigenschaften des Warmbandes beeinflussenden Elementen bestehender Gas- oder Plasmastrahl ein, wobei durch Veränderung der einwirkenden kinetischen Energie des Gas- oderPlasmastrgls, des Gas-Partialdrucks und/oder der anliegenden Temperatur die Konzentration der über den Gas- oder Plasmastrahl in die Schmelze eingebrachten und dort eindiffundierenden Elemente über die Banddicke und Bandbreite eingestellt wird.According to the teaching of the invention acts on the still liquid and / or just beginning of solidification steel melt from a metallic and / or non-metallic, the material properties of the hot strip influencing elements existing gas or plasma jet, wherein by changing the acting kinetic energy of the gas or plasma , the gas partial pressure and / or the applied temperature, the concentration of the introduced via the gas or plasma jet into the melt and there einiffundierenden elements over the strip thickness and bandwidth is set.

Bei dem beschriebenen Verfahren wird also nicht das Einbringen von Gasbläschen in die Matrix angestrebt, sondern durch das geometrische Eindringen des Gas- oder Plasmastrahls in das noch flüssige oder gerade im Erstarrungsbeginn befindliche Schmelzbad diffundieren die mit dem Gas oder Plasma transportierten Moleküle oder Teilchen in die Matrix ein und beeinflussen so die Werkstoffeigenschaften.In the described method, therefore, the introduction of gas bubbles is not sought in the matrix, but by the geometric penetration of the gas or plasma jet in the still liquid or just beginning of solidification melt diffuse the transported with the gas or plasma molecules or particles in the matrix and thus influence the material properties.

Das erfindungsgemäße Verfahren ist grundsätzlich für die Erzeugung von Warmbändern aus den verschiedensten metallischen Werkstoffen geeignet, insbesondere auch für hochlegierte Leichtbaustähle.
Das erfindungsgemäße Verfahren bietet erstmals in vorteilhafter Weise die Möglichkeit den spezifischen Anforderungen an die Werkstoffeigenschaften des fertigen Bauteils gezielt Rechnung zu tragen, in dem diese sowohl über die Banddicke wie auch über die Bandbreite gezielt eingestellt werden können.
Hierbei werden gasförmige, dampfförmige oder im Zustand des Plasmas befindliche Legierungsbestandteile mittels dem Zweck entsprechender Abscheidungsverfahren auf die Matrix der noch flüssigen oder gerade in beginnender Erstarrung befindlichen Stahlschmelze aufgebracht, wobei die im Gas bzw. Plasmadampf enthaltenen metallischen und/oder nicht metallischen Elemente in die Matrix eindiffundieren.
Dies können beispielsweise auch Legierungselemente sein, bei denen die Löslichkeit im Eisen bei üblichen Liquidustemperaturen begrenzt ist und die damit über herkömmliche Produktionsverfahren aufgrund von Materialunverträglichkeiten, metallurgischer Entmischung, Abdampfen, etc. gar nicht oder nur begrenzt in die Matrix einbringbar sind.The inventive method is basically suitable for the production of hot strips of various metallic materials, especially for high-alloy lightweight steels.
The method according to the invention offers for the first time in an advantageous manner the possibility of specifically taking into account the specific requirements of the material properties of the finished component, in which these can be adjusted in a targeted manner both via the strip thickness and over the strip width.
In this case, gaseous, vaporous or in the state of the plasma alloy constituents are applied by means of appropriate deposition on the matrix of still liquid or just beginning to solidification molten steel, wherein the gas or plasma vapor contained metallic and / or non-metallic elements in the matrix diffuse.
These may, for example, also be alloying elements in which the solubility in the iron is limited at normal liquidus temperatures and thus can not be introduced into the matrix via conventional production processes due to material incompatibilities, metallurgical segregation, evaporation, etc.

Außerdem können dem Gasstrahl Feststoffpartikel, wie z. B. Metall- oder Keramikpartikel, zugesetzt werden (Aerosole), so dass mit dem erfindungsgemäßen Verfahren völlig neuartige Verbund- bzw. Gradientenwerkstoffe mit entsprechend neuen Eigenschaften bereitgestellt werden.In addition, the gas jet solid particles such. As metal or ceramic particles are added (aerosols), so that are provided with corresponding novel properties with the inventive method completely novel composite or gradient materials.

Bei Einsatz eines Gasstrahls kann das Gas z. B. aus N2, CO, CO2, inerten oder reduzierenden Gasen bestehen und je nach Anforderungen kalt oder vorgewärmt auf die Schmelzbadoberfläche auftreffen.When using a gas jet, the gas z. B. from N 2 , CO, CO 2 , inert or reducing gases and, depending on requirements cold or preheated impinge on the molten bath surface.

Durch Einstellung der kinetischen Energie des Gas-Partialdrucks und ggf. der Temperatur diffundieren die Gasmoleküle ausgehend von der Bandoberfläche mit einem auf diese Weise gezielt einstellbaren Gradienten in Banddickenrichtung und beeinflussen entsprechend die Werkstoffeigenschaften des erstarrten Bandes. Bei Verwendung von N2, CO oder CO2 kann beispielsweise über die Banddicke gezielt ein Härtegradient eingestellt werden.By adjusting the kinetic energy of the gas partial pressure and optionally the temperature, the gas molecules, starting from the strip surface, diffuse with a specifically adjustable gradient in the strip thickness direction and correspondingly influence the material properties of the solidified strip. When using N 2 , CO or CO 2 , for example, a hardness gradient can be set in a targeted manner via the strip thickness.

Bei Einsatz eines heißen Plasmastrahls kann das Plasma z. B. auch aus Metalldämpfen bestehen, womit beliebige Legierungselemente in den Werkstoff eingebracht werden können, um die Werkstoffeigenschaften gezielt zu beeinflussen. Dies kann z. B. Cr sein, um die Korrosionseigenschaften zu verbessern oder Si, um die weichmagnetischen Eigenschaften oder die Zunderbeständigkeit zu verbessern oder Kupfer, um in ausgewählten Materialbereichen den elektrischen Widerstand zu reduzieren.When using a hot plasma jet, the plasma z. B. also consist of metal vapors, which any alloying elements can be introduced into the material in order to influence the material properties targeted. This can be z. B. Cr to improve the corrosion properties or Si, to improve the soft magnetic properties or the scale resistance or copper to reduce the electrical resistance in selected material areas.

Grundsätzlich sind bei der Wahl der nichtmetallischen oder metallischen Elemente keine Grenzen gesetzt, um ein in Bezug auf die geforderten Eigenschaften optimiertes Warmband im Sinne eines Verbund- oder Gradientenwerkstoffes bereitzustellen.In principle, there are no limits in the choice of non-metallic or metallic elements in order to provide a hot strip optimized in relation to the required properties in the sense of a composite or gradient material.

Vorteilhafterweise erfolgt die Gas- bzw. Plasmastrahlbeaufschlagung über die ganze Breite des Gießbandes bzw. ist variabel einstellbar.Advantageously, the gas or plasma jet is applied over the entire width of the casting belt or is variably adjustable.

Hierzu wird mit einer entsprechenden Anzahl an Zuleitungspunkten, z. B. Gasdüsen oder Plasmabrennern, das Gießband über die Breite nur partiell an den geforderten Stellen oder über die gesamte Breite beaufschlagt.For this purpose, with a corresponding number of supply points, z. As gas nozzles or plasma torches, the casting belt across the width only partially applied to the required locations or over the entire width.

Vorteilhaft können über eine variable Gas- bzw. Plasmastrahlbeaufschlagung auch die Werkstoffeigenschaften über die Länge des gegossenen Bandes eingestellt werden. Dies kann beispielsweise dadurch erreicht werden, dass während des Bandtransportes im Zuge der Erstarrung die im Regelfall ortsfest angeordnete Gas- bzw. Plasmastrahlbeaufschlagung an- oder abgeschaltet wird, bzw. in ihrer Intensität stufenlos oder gestuft gesteuert wird.Advantageously, the material properties over the length of the cast strip can be adjusted via a variable gas or plasma jet. This can be achieved, for example, by activating or deactivating the gas or plasma jet loading, which is normally arranged in a stationary manner during the belt transport, or steers in its intensity steplessly or stepwise.

Die Beaufschlagung des Bandes mit einem Gas- bzw. Plasmastrahl kann dabei nicht nur zum Einbringen von Elementen in den Bandwerkstoff genutzt werden sondern es kann auch vorteilhaft die im Plasmastrahl enthaltene Energie beispielsweise dazu genutzt werden, bereits durch einen Gasstrahl eingebrachte Elemente einer gezielten Wärmebehandlung zu unterziehen um beispielweise eine Diffusionsverstärkung zu erzielen. Somit können mit dem Plasmastrahl z. B. gezielt "Spuren" mit veränderten Werkstoffeigenschaften in das Band eingebracht werden.The loading of the belt with a gas or plasma jet can not only be used for introducing elements into the strip material but also advantageously the energy contained in the plasma jet can be used, for example, to subject elements already introduced by a gas jet to a targeted heat treatment for example, a diffusion gain to achieve. Thus, with the plasma jet z. B. targeted "traces" are introduced with altered material properties in the band.

Zusammenfassend ergeben sich aus der Erfindung folgende Vorteile:

  • Einstellung benötigter Oberflächeneigenschaften durch teure Legierungselemente nur in der Oberfläche - wirtschaftlicher Materialaufbau durch kostengünstigen Kernwerkstoff
    Gezielt beeinflusst werden können:
    • Verschleiß/Abrieb/Tribologie
    • Zunderbeständigkeit
    • Korrosionsschutz
    • Beschichtbarkeit
    • Beklebbarkeit
    • elektrische Eigenschaften
    • Schweißbarkeit (Widerstandspunktschweißbarkeit)
    • thermische Eigenschaften (Bimetall)
    • optische Eigenschaften (Aussehen)
  • Realisierung von Kombinationen unterschiedlicher Oberflächen- und Materialkerneigenschaften
  • Nutzung bereichsweise verschiedener Verfestigungsmechanismen, wie z. B. Mischkristallverfestigung und Ausscheidungen zur Erzeugung von Festigkeitsgradienten bzw. ortsspezifischer verformungs- bzw. Crasheigenschaften.
In summary, the invention provides the following advantages:
  • Adjustment of required surface properties by expensive alloying elements only in the surface - economical material construction by inexpensive core material
    Can be targeted:
    • Wear / abrasion / tribology
    • scaling resistance
    • corrosion protection
    • coatability
    • Beklebbarkeit
    • Electrical Properties
    • Weldability (resistance spot weldability)
    • thermal properties (bimetal)
    • optical properties (appearance)
  • Realization of combinations of different surface and material core properties
  • Use of various types of solidification mechanisms, such. B. solid solution hardening and precipitates to produce strength gradients or site-specific deformation or crash properties.

In einer Zeichnung wird das erfindungsgemäße Verfahren näher erläutert. Es zeigen:

Figur 1
die schematische Darstellung einer horizontalen Bandgießanlage mit Einwirkstellen für die Gas- oder Plasmastrahlen zur Beeinflussung der Werkstoffeigenschaften,
Figur 2
einstellbare Konzentrationen bzw. Elementverteilungen über die Blechdicke.
In a drawing, the inventive method is explained in detail. Show it:
FIG. 1
the schematic representation of a horizontal strip casting plant with contact points for the gas or plasma jets for influencing the material properties,
FIG. 2
Adjustable concentrations or element distributions over the sheet thickness.

In Figur 1 sind in der schematischen Darstellung einer horizontalen Bandgießanlage die prinzipiell möglichen Einwirkstellen für die Gas- oder Plasmastrahlen zur gezielten Beeinflussung der Werkstoffeigenschaften des Stahlbandes dargestellt.In FIG. 1 are shown in the schematic representation of a horizontal strip casting the principle possible Einwirkstellen for the gas or plasma jets targeted for influencing the material properties of the steel strip.

Zu erkennen ist ein Schmelzgefäß 1 aus dem flüssige Stahlschmelze 8 über ein Zulaufgefäß 2 einer Gießrinne 3 zugeführt wird, so dass die Schmelze 8 durch eine Gießdüse 4 auf ein um eine vordere Umlenkrolle 6 und hintere Umlenkrolle 7 umlaufendes Gießband 5 aufgegeben wird. Abgestützt wird das Gießband 5 zwischen den Umlenkrollen 6 und 7 von Tragrollen 9 zwischen denen zur Bandkühlung Kühldüsen 10 angeordnet sind. Die dargestellten Rotationspfeile an den Umlenkrollen 6 und 7 kennzeichnen die Förderrichtung des erstarrenden Gießstrangs 11.To recognize a melting vessel 1 is fed from the liquid molten steel 8 via a feed vessel 2 of a runner 3, so that the melt 8 is fed through a pouring nozzle 4 on to a front guide roller 6 and rear guide roller 7 encircling casting belt 5. The casting belt 5 is supported between the deflecting rollers 6 and 7 by carrying rollers 9 between which cooling nozzles 10 are arranged for belt cooling. The illustrated rotation arrows on the deflection rollers 6 and 7 characterize the conveying direction of the solidifying cast strand 11.

Die möglichen Einwirkstellen des Gas- oder Plasmastrahls auf den Gießstrang sind mit I und II gekennzeichnet.The possible contact points of the gas or plasma jet on the cast strand are marked with I and II.

Bei der Einwirkstelle I ist die Schmelze auch an der Strangoberseite noch flüssig. Durch das Eindringen des Fördermediums (z. B. mittels eines Gas- oder Plasmastrahls) in das noch flüssige Schmelzbad wird die Schmelze mit gas-/dampf-förmigen metallischen und/oder nichtmetallischen Elementen geimpft und infolge der auf die Schmelze durch das Fördermedium ausgeübten Druck erzeugten Strömungen in der Schmelze gesteuert durchmischt. Die damit erreichte größere Oberfläche und Schaffung von neuen Oberflächen hat eine Steigerung der eindiffundierbaren Teilchenmenge zur Folge.At the contact point I, the melt is still liquid at the top of the strand. As a result of the penetration of the conveyed medium (for example by means of a gas jet or plasma jet) into the still molten bath, the melt is inoculated with gas / vapor-shaped metallic and / or non-metallic elements and due to the pressure exerted on the melt by the conveying medium generated flows in the melt controlled mixed. The resulting larger surface area and creation of new surfaces results in an increase in the diffusible amount of particles.

Mittels eines in Gießrichtung folgenden elektromagnetischen Querrührers kann eine weitere Durchmischung durch Verteilung der bereits eindiffundierten Teilchen bzw. die Erhöhung der eindiffundierten Menge durch die Schaffung neuer Oberflächen erreicht werden.By means of an electromagnetic transverse stirrer following in the casting direction, a further thorough mixing can be achieved by distributing the already diffused particles or increasing the amount diffused in by creating new surfaces.

Im Bereich der Einwirkstelle II hat die Oberseitenerstarrung des Gießstranges bereits eingesetzt. Die porös gehaltene Oberfläche ermöglicht, dass an dieser Stelle aus dem Fördermedium (z. B. Gase oder Dämpfe) abgeschiedene Atome von der Oberfläche in das feste Material diffundieren können.In the area of exposure point II, the surface solidification of the cast strand has already begun. The porous surface makes it possible for atoms deposited at this point to diffuse from the medium (eg gases or vapors) from the surface into the solid material.

Die Beaufschlagung des Bandes mit Gas- oder Plasmastrahlen kann dabei entweder an einer der beiden Einwirkstellen erfolgen oder an beiden gemeinsam sowohl zeitlich versetzt, als auch gleichzeitig.The admission of the band with gas or plasma jets can take place either at one of the two contact points or at both together both offset in time, and simultaneously.

Mit einer zusätzlichen variablen Beaufschlagung über Bandbreite und -länge lassen sich die vielfältigsten Anforderungen hinsichtlich der geforderten Werkstoffeigenschaften erzielen. Somit können die Werkstoff- bzw. späteren Bauteileigenschaften im Band quasi ortsgenau eingestellt werden.With an additional variable loading over bandwidth and length, the most varied requirements with regard to the required material properties can be achieved. Thus, the material or later component properties in the band can be set quasi precise location.

Mit den beschriebenen Aufgabepositionen lassen sich die in Figur 2 dargestellten Konzentrationen bzw. Verteilungen über der Banddicke einstellen:

  • Aufgabeposition I → Verteilung A): Gradientenwerkstoffe mit stetigem einseitigem Oberflächengradient. Dieser sich aus der Diffusion ergebende Gradient kann durch die kinetische Energie des Gas- bzw. Plasmastrahls, den Gas-Partialdruck sowie die anliegende Temperatur (Diffusionsgeschwindigkeit ist temperaturabhängig) eingestellt werden.
  • Aufgabeposition II → Verseilung B): Verbundwerkstoffe mit einseitiger sprunghafter Verteilungsänderung außen.
With the described task positions can be in FIG. 2 Set the concentrations or distributions above the strip thickness as shown:
  • Loading position I → distribution A) : gradient materials with continuous one-sided surface gradient. This gradient resulting from the diffusion can be adjusted by the kinetic energy of the gas or plasma jet, the gas partial pressure and the applied temperature (diffusion rate is temperature-dependent).
  • Loading position II → stranding B) : composite materials with one-sided sudden change in distribution on the outside.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

Nr.No. Bezeichnungdescription 11 Schmelzgefäßmelting vessel 22 Zulaufgefäßfeed vessel 33 Gießrinnelaunder 44 Gießdüsecasting nozzle 55 Gießbandcasting belt 66 vordere Umlenkrollefront pulley 77 hintere Umlenkrollerear pulley 88th Schmelzemelt 99 Tragrollenidlers 1010 Kühldüsencooling nozzles 1111 Gießstrangcast strand I - III - II Aufgabepositionenjob positions

Claims (8)

  1. A method for producing hot strip from steel with material properties which are settable across the strip cross-section, wherein a steel melt is charged by means of a runner onto a revolving casting belt of a horizontal strip casting plant, which melt solidifies to form a roughed strip with a thickness of between 6 and 20 mm, and the roughed strip once it has thoroughly solidified is subjected to a hot-rolling process,
    characterised in that
    a gas jet or plasma jet consisting of metallic and/or non-metallic elements which influence the material properties of the hot strip acts on the steel melt which is still molten and/or just beginning to solidify, and by changing the acting kinetic energy of the gas jet or plasma jet, the gas partial pressure and/or the applied temperature the concentration of the elements which are introduced into the melt via the gas jet or plasma jet and are diffused in therein is set over the strip thickness and the strip width.
  2. A method according to Claim 1, characterised in that solids particles are added to the gas jet or plasma jet.
  3. A method according to Claim 1 and 2, characterised in that the gas used for the gas jet is inert and/or a reducing gas.
  4. A method according to Claim 1 and 2, characterised in that the gas used for the gas jet is a mixed gas consisting of an inert gas as carrier and a reducing gas.
  5. A method according to one of Claims 1 to 4, characterised in that the gas is cold or preheated.
  6. A method according to one of Claims 1 to 5, characterised in that the material properties are set symmetrically or asymmetrically over the width of the strip.
  7. A method according to one of Claims 1 to 6, characterised in that the material properties are additionally set variably over the cast length of the strip.
  8. A method according to one of Claims 1 to 7, characterised in that the form of the cast-strip edges is influenced during the course of solidification by targeted action on the still-molten cast-strip marginal regions using the gas jet or plasma jet.
EP10749463.5A 2009-08-21 2010-07-14 Method for producing a hot-rolled strip by means of strip casting, wherein the material properties can be adjusted over the strip cross-section Not-in-force EP2467221B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009038974A DE102009038974B3 (en) 2009-08-21 2009-08-21 Method for producing steel hot strip with material characteristics adjustable over the band cross-section, comprises applying a steel melt by a casting groove on a running casting band of a horizontal strip casting plant
PCT/DE2010/000826 WO2011020451A1 (en) 2009-08-21 2010-07-14 Method for producing a hot-rolled strip by means of strip casting, wherein the material properties can be adjusted over the strip cross-section

Publications (2)

Publication Number Publication Date
EP2467221A1 EP2467221A1 (en) 2012-06-27
EP2467221B1 true EP2467221B1 (en) 2016-01-27

Family

ID=42993819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10749463.5A Not-in-force EP2467221B1 (en) 2009-08-21 2010-07-14 Method for producing a hot-rolled strip by means of strip casting, wherein the material properties can be adjusted over the strip cross-section

Country Status (6)

Country Link
US (1) US10086426B2 (en)
EP (1) EP2467221B1 (en)
KR (1) KR20120051028A (en)
DE (1) DE102009038974B3 (en)
RU (1) RU2537580C2 (en)
WO (1) WO2011020451A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012002079B4 (en) 2012-01-30 2015-05-13 Salzgitter Flachstahl Gmbh Process for producing a cold or hot rolled steel strip from a high strength multiphase steel
DE102012013425A1 (en) 2012-07-03 2014-01-09 Salzgitter Flachstahl Gmbh Continuous strip casting and rolling plant
WO2021001495A1 (en) * 2019-07-03 2021-01-07 Hydro Aluminium Rolled Products Gmbh Molten metal guide for strip casting systems

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1112112A (en) * 1977-05-31 1981-11-10 Alfred R.E. Singer Deposition of metals on a base
JPS58179542A (en) * 1982-04-12 1983-10-20 Daido Steel Co Ltd Production of particle-dispersed metal
US4523625A (en) * 1983-02-07 1985-06-18 Cornell Research Foundation, Inc. Method of making strips of metallic glasses having uniformly distributed embedded particulate matter
JPS6017029A (en) * 1983-07-09 1985-01-28 Alps Electric Co Ltd Production of second phase particle dispersion type ultraquickly cooled alloy
US4588021A (en) * 1983-11-07 1986-05-13 Hazelett Strip-Casting Corporation Matrix coatings on endless flexible metallic belts for continuous casting machines method of forming such coatings and the coated belts
JPH01306052A (en) * 1988-06-02 1989-12-11 Sumitomo Metal Ind Ltd Belt for continuous casting
US6110296A (en) 1998-04-28 2000-08-29 Usx Corporation Thin strip casting of carbon steels
JP4254236B2 (en) * 2000-12-12 2009-04-15 コニカミノルタホールディングス株式会社 Thin film formation method
DE10124594B4 (en) * 2001-05-21 2006-10-12 Thyssenkrupp Steel Ag Method for producing a composite steel strip by roll-plating a directly cast steel strip and using such a composite strip
RU2233346C1 (en) * 2003-04-22 2004-07-27 Открытое акционерное общество "Всероссийский институт легких сплавов" Aluminum alloy for preparing aluminum foam and method for preparing aluminum foam from it
DE102004053620A1 (en) 2004-11-03 2006-05-04 Salzgitter Flachstahl Gmbh High-strength, air-hardening steel with excellent forming properties
DE102004062636B4 (en) * 2004-12-21 2007-05-24 Salzgitter Flachstahl Gmbh Device for horizontal strip casting of steel
DE102005062854A1 (en) 2005-12-23 2007-07-05 Salzgitter Flachstahl Gmbh Method and device for producing metallic hot strips, in particular made of lightweight steel
DE102007058222A1 (en) 2007-12-03 2009-06-04 Salzgitter Flachstahl Gmbh Steel for high-strength components made of tapes, sheets or tubes with excellent formability and special suitability for high-temperature coating processes

Also Published As

Publication number Publication date
US10086426B2 (en) 2018-10-02
RU2012110590A (en) 2013-09-27
RU2537580C2 (en) 2015-01-10
US20120279677A1 (en) 2012-11-08
DE102009038974B3 (en) 2010-11-25
EP2467221A1 (en) 2012-06-27
WO2011020451A1 (en) 2011-02-24
KR20120051028A (en) 2012-05-21

Similar Documents

Publication Publication Date Title
EP2547800B1 (en) Method for producing workpieces from lightweight steel having material properties that can be adjusted over the wall thickness
EP1752548B1 (en) Method for producing a magnetic grain oriented steel strip
EP1326723B1 (en) A method of producing steel
EP2759614B1 (en) Method for generating a flat steel product with an amorphous, semi-amorphous or fine crystalline structure and flat steel product with such structures
EP1752549A1 (en) Process for manufacturing grain-oriented magnetic steel spring
DE102009036378A1 (en) Method and apparatus for producing a microalloyed steel, in particular a tubular steel
EP2421664A1 (en) Process and apparatus for the continuous casting of a slab
WO2002024969A1 (en) Method for producing a steel strip or sheet consisting predominantly of mn-austenite
DE112015005690T5 (en) Hot rolled martensitic lightweight sheet steel and method of making the same
EP2467221B1 (en) Method for producing a hot-rolled strip by means of strip casting, wherein the material properties can be adjusted over the strip cross-section
EP2406023A1 (en) Method for producing a hot rolled strip and hot rolled strip produced from triplex lightweight steel
EP1404484B1 (en) Strip-shaped cutting tools
EP1109638B1 (en) Method for producing load-optimised steel strips
EP2483014B1 (en) Method for strip casting steel and system for strip casting
DE102011010040B3 (en) Method and device for producing a cast strip of steel with material properties adjustable over the strip cross section and the strip length
DE102014005662A1 (en) Material concept for a malleable lightweight steel
EP1702993B1 (en) Method and apparatus for through-hardening sections of steel plate finished formed components
EP2511039A1 (en) Method for laser beam welding of a steel preliminary product with a metallic covering using a gas containing Ar, Co2 and O2
DE102010026245B4 (en) Method for producing hot strip by means of strip casting with adjustable over the strip cross section and the strip length material properties
WO2010149125A2 (en) Method and device for producing steel strips by means of belt casting
DE2146227A1 (en) Process for the production of three-layer rolled products
DE10138794A1 (en) Process and plant for the production of flat and long products
DE10107027A1 (en) Process for the production of metallic strips with sections of different material properties
DE102015116517A1 (en) Apparatus and method for the continuous production of a band-shaped metallic workpiece

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: 20111216

AK Designated contracting states

Kind code of ref document: A1

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 SE SI SK SM TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHMIDT-JUERGENSEN, RUNE

Inventor name: FLAXA, VOLKER

Inventor name: SPITZER, KARL-HEINZ

Inventor name: KROOS, JOACHIM

Inventor name: SCHAEPERKOETTER, MARKUS

Inventor name: EICHHOLZ, HELLFRIED

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

INTG Intention to grant announced

Effective date: 20150807

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 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: AT

Ref legal event code: REF

Ref document number: 772457

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160215

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: DE

Ref legal event code: R096

Ref document number: 502010010997

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

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

Ref country code: IT

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

Effective date: 20160127

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: 20160127

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: 20160427

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: 20160428

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: 20160127

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: 20160127

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

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: 20160127

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: 20160127

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: 20160127

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: 20160527

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: 20160127

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: 20160527

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

Ref country code: NL

Payment date: 20160720

Year of fee payment: 7

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010010997

Country of ref document: DE

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

Ref country code: DK

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

Effective date: 20160127

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: 20160127

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

Ref country code: SK

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

Effective date: 20160127

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: 20160127

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: 20160127

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: 20160127

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

Ref country code: AT

Payment date: 20160721

Year of fee payment: 7

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20161028

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: 20160427

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: 20160127

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: 20160714

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: 20160127

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: 20160731

Ref country code: CH

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

Effective date: 20160731

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: GB

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

Effective date: 20160714

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

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

Ref country code: IE

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

Effective date: 20160714

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

Ref country code: LU

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

Effective date: 20160714

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20170801

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 772457

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170714

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 NON-PAYMENT OF DUE FEES

Effective date: 20170801

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

Ref country code: AT

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

Effective date: 20170714

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: 20160127

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: 20100714

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: 20160127

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: 20160127

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

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: 20160127

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

Ref country code: FR

Payment date: 20180725

Year of fee payment: 9

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

Ref country code: BE

Payment date: 20180718

Year of fee payment: 9

Ref country code: TR

Payment date: 20180712

Year of fee payment: 9

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190731

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: 20190731

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: 20190731

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 NON-PAYMENT OF DUE FEES

Effective date: 20190714

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

Ref country code: DE

Payment date: 20220720

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502010010997

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20240201