EP2220259B9 - Procédé servant à fabriquer des pièces en acier revêtues et trempées et bande d'acier correspondante revêtue et pouvant être trempée - Google Patents

Procédé servant à fabriquer des pièces en acier revêtues et trempées et bande d'acier correspondante revêtue et pouvant être trempée Download PDF

Info

Publication number
EP2220259B9
EP2220259B9 EP08864850A EP08864850A EP2220259B9 EP 2220259 B9 EP2220259 B9 EP 2220259B9 EP 08864850 A EP08864850 A EP 08864850A EP 08864850 A EP08864850 A EP 08864850A EP 2220259 B9 EP2220259 B9 EP 2220259B9
Authority
EP
European Patent Office
Prior art keywords
oxidation
coating
layer
steel
carried out
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.)
Active
Application number
EP08864850A
Other languages
German (de)
English (en)
Other versions
EP2220259B1 (fr
EP2220259A1 (fr
Inventor
Werner BRANDSTÄTTER
Siegfried Kolnberger
Thomas Kurz
Martin Peruzzi
Johann Strutzenberger
Thomas Manzenreiter
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.)
Voestalpine Stahl GmbH
Original Assignee
Voestalpine Stahl 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 Voestalpine Stahl GmbH filed Critical Voestalpine Stahl GmbH
Publication of EP2220259A1 publication Critical patent/EP2220259A1/fr
Application granted granted Critical
Publication of EP2220259B1 publication Critical patent/EP2220259B1/fr
Publication of EP2220259B9 publication Critical patent/EP2220259B9/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0478—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular surface treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • C23C2/0222—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising or reducing atmosphere
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/12—Aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/261—After-treatment in a gas atmosphere, e.g. inert or reducing atmosphere
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C23C2/29—Cooling or quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/24983—Hardness

Definitions

  • the invention relates to a method for producing hardened components made of hardenable steel and a hardenable steel strip for this purpose.
  • Hardenable steels are to be understood below as steels in which a phase transformation of the base material results during the heating and subsequent cooling, the so-called quench hardening from the previous microstructure transformation and optionally during the quench hardening further microstructural transformations results in a material which is significantly harder or higher Has tensile strengths as the starting material.
  • press-hardening in which a board made of a hardenable steel material is heated above the so-called austenitizing temperature and placed in a heated state in a mold and formed in this mold and cooled at the same time, whereby on the one hand, the final geometry of the desired component and on the other hand gives the desired hardness or strength. This procedure is widely used.
  • a method is known in which a hardened component made of hardenable steel sheet with a cathodic corrosion protection, wherein the component is cold-formed already in a metallic coated state, so that it is 0.5 to 2% smaller than the nominal final dimension of the finished hardened component. Subsequently, this component is heated and placed in a tool which corresponds exactly to the final dimensions of the desired component. Due to the thermal expansion, the coated component has expanded to exactly this final dimension and is held on all sides in the so-called mold and cooled, whereby the hardening is brought about.
  • microcracks occur in the steel substrate, regardless of whether a metallic coating is present on the steel substrate or not, especially during hot forming, even of cold preformed but unfinished components.
  • micro-cracks occur especially in the areas that are reshaped and especially in the areas with high degrees of deformation. These microcracks are located on the surface and / or in the metallic coating and may partially extend relatively far into the base material. This has the disadvantage that such cracks under load of the component can continue to grow and represent a pre-damage of the component, which can lead to failure under load.
  • Metallic coatings on steels have long been known in the form of aluminum, aluminum alloy coatings, particularly aluminum-zinc alloy coatings, zinc coatings and zinc alloy coatings.
  • Such coatings have the task of protecting the steel material from corrosion. In the case of aluminum coatings, this is done by what is known as barrier protection, in which the aluminum creates a barrier against the entry of corrosive media.
  • Such coatings have hitherto been used in particular for normal-strength steel alloys, in particular for the motor vehicle industry, the construction industry, but also in the household appliance industry.
  • They can be applied to the steel material by hot dip coating, PVD or CVD or electrodeposited.
  • a process for hot dip coating a strip of high strength steel in which the strip in a continuous furnace in first A reducing atmosphere is heated to a temperature of about 650 ° C. At this temperature, the alloying constituents of the higher-strength steel should diffuse to the surface of the strip in only small amounts.
  • the predominantly made of pure iron surface is converted by a very short heat treatment at an overlying temperature of up to 750 ° C in a continuous furnace integrated reaction chamber with an oxidizing atmosphere in an iron oxide layer. This iron oxide layer is intended to prevent diffusion of the alloying constituents to the surface of the strip in a subsequent annealing treatment at a higher temperature in a reducing atmosphere.
  • the iron oxide layer is converted into a purer iron layer on which the zinc and / or aluminum is optimally adhered in the hot dip.
  • the oxide layer applied by this method should have a maximum thickness of 300 nm. In practice, the layer thickness is usually set to about 150 nm.
  • the object of the invention is to provide a method for producing hardened components made of hardenable steel, with which the forming behavior, in particular the hot forming behavior, is improved.
  • the invention provides to oxidize a hot or cold rolled steel strip on the surface, then make a metallic coating and for the purpose of producing the component from the corresponding coated sheet - so necessary - to cut a board to heat this board to them by heating austenitize at least partially so that in a subsequent forming and cooling of the board, an at least partially cured microstructure or partially cured component is formed.
  • the superficial oxidation of the strip of hardenable steel during the heating for the purpose of Austenit ensues and / or forming and cooling superficially a ductile layer is formed, which can reduce the stresses during forming so well that it no longer comes to microcracking .
  • the metallic coating serves to protect against superficial decarburization, although this metallic coating can of course also perform other tasks, such as corrosion protection.
  • a protective gas atmosphere can be produced, in particular, a superficial oxidation, for. B. to about 700 ° C in an oxidizing atmosphere, brought about and the further heating under inert gas atmosphere are carried out so that further oxidation and / or decarburization is omitted.
  • the oxide layer as in conventional pre-oxidation, largely eliminated for the purpose of galvanizing.
  • the oxidation according to the invention is carried out to a far greater extent than the pre-oxidation according to the prior art.
  • the prior art pre-oxidation takes place up to a maximum thickness of 300 nm, the oxidation according to the invention to a much greater extent, so that even after a reduction has been carried out, an oxidized layer, preferably at least 300 nm thick, remains.
  • the oxidation according to the invention apparently not only superficially creates an iron-oxide layer which, of course, also contains oxides of the alloying elements, it also seems to be the case that the alloying elements are partially oxidized even below this layer.
  • a component produced by the process according to the invention shows on the surface between the steel substrate and the coating a thin, in the micrograph FIG. 4 as a whitish layer.
  • the most likely cause of this ductile layer is oxidized alloying elements, which were not available in the superficially oxidized phase for the phase transformation during curing or have delayed or obstructed this transformation.
  • the exact mechanisms have not yet been elucidated.
  • FIG. 1 the method according to the invention is shown with reference to a method sequence, for example for a hot-dip-coated steel strip, in particular a galvanized steel strip of the 22MnB5 type with an overlay Z140.
  • a bright steel strip 1 is subjected to oxidation before the hot-dip coating, so that the strip 1 is provided with an oxide layer 2.
  • This oxidation is carried out at temperatures between 650 ° and 800 ° C. While for a conventional pre-oxidation, which would be necessary for a hot-dip galvanizing, the oxide layer thickness of 150 nm would be fully sufficient, the oxidation is carried out according to the invention so that the oxide layer thickness is> 300 nm.
  • a partial reduction of the oxides at the surface is carried out in the next step, so that a very thin reduced layer 4 is produced, which consists essentially of pure iron. Below this remains a residual oxide layer 3.
  • the hot-dip coating is carried out with the coating metal, so that a layer 5 of the coating metal on the residual oxide layer 3 results.
  • a layer 5 of the coating metal on the residual oxide layer 3 results.
  • Now around the hardened component To achieve the tape 1 is heated to the Austenitmaschinestemperatur and at least partially austenitized, which inter alia alloy the metallic coating 5 and the surface of the belt 1 together.
  • the oxide layer 3 is in this case partially or completely consumed by diffusion processes between the band 1 and the metallic coating 5, or is not detectable in the high-temperature treatment.
  • the deposition onto the oxide layer can take place without prior reduction or with reduction, if appropriate, however, a pickling is also carried out.
  • this light-colored layer 7 The most probable cause of this light-colored layer 7 is that the oxidation carried out before the metallic coating has oxidized the alloying elements necessary for hardening, such as manganese, in the near-surface region and are not available for conversion or hinder conversion. so that the steel strip in the very thin near-surface area this forms ductile layer 7, which is apparently sufficient to compensate for the near-surface stresses so that no deformation and crack propagation occur during forming.
  • the advantage of the process is also evident after curing, or can also be detected after curing, if a correspondingly produced or hardened sheet is subjected to a three-point bending test, for example. This can also positively influence the crash behavior.
  • Time is measured, the distance from touching the flexural strength value with the sample and the force.
  • the force and displacement or a force-bending angle curve are recorded, the angle being calculated from the path.
  • the test criterion is the bending angle at the force maximum.
  • the ductile layer 7 is located between the hardened substrate and the coating after the hardening reaction.
  • the average layer thickness of this layer is greater than 0.3 microns, which layer may be continuous, but need not be completely continuous, to bring about the success of the invention.
  • FIG. 6 shows a scanning electron micrograph of a comparative example according to the invention. It can be seen that the zinc content decreases abruptly from about 40% Zn content to below 5% Zn due to the diffusion processes in the direction of the base material martensite.
  • the grains of the iron-zinc layer have near the base material only a very low zinc content, these appear in the cross-section whitish Fe-rich layer acts as a ductile intermediate layer between the other laminates.
  • FIG. 7 shows an excerpt FIG. 6 with a line-zinc concentration profile from an energy-dispersive X-ray analysis (EDX). It is once again clearly evident that the zinc content decreases in the direction of the base material.
  • EDX energy-dispersive X-ray analysis
  • FIGS. 4 and 5 each show a cross-section of a hardened steel strip of the invention ( FIG. 4 ) and the prior art ( FIG. 5 ), where clearly the substrate in the cut 1, lying over the converted metallic coating 6 and lying between the ductile layer 7 are visible.
  • FIG. 5 shows a layer structure according to the prior art, in which a galvanized strip 101 has a steel substrate 102 made of high-strength steel, on which a zinc-iron layer 103 is applied. A ductile layer is missing.
  • the metallic coating can be selected from all common metallic coatings, since it is only a matter of counteracting a decarburization. Therefore, the coatings may be pure aluminum or aluminum-silicon coatings as well as alloy coatings of aluminum and zinc (Galvalume) as well as coatings of zinc or substantially zinc. But other coatings of metals or alloys are suitable if you can experience the high temperatures during curing in the short term.
  • the coatings may, for. B. by electroplating or hot dip coating or PVD or CVD method may be applied.
  • the oxidation can hereby be brought about conventionally in that the strip passes through a directly heated preheater in which gas burners are used and an increase of the oxidation potential in the atmosphere surrounding the strip can be produced by a change of the gas-air mixture.
  • the oxygen potential can be controlled and lead to oxidation of the iron on the strip surface.
  • the control is carried out in such a way that an oxidation is achieved which is significantly above the oxidation in the prior art.
  • the iron oxide layer formed or an optionally achieved internal oxidation of the steel only superficially or partially reduced.
  • oxidation or pre-oxidation is also carried out considerably more than it would be necessary.
  • the oxidation strength can be adjusted here in particular by the supply of an oxidizing agent.
  • the control of the oxidation can be controlled via the atmosphere, via an oxidant concentration of an optionally added further oxidizing agent, the treatment time, the temperature, the temperature profile and the water vapor content in the furnace chamber.
  • Such a treated band as in the Figures 3 and 4 is excellent, and free of microcracks in the steel substrate cold form, heat and press hardening or reshaping but also hot forming and press hardening.
  • An advantage of the invention is the provision of a method and a steel strip which make it possible, in a simpler and safer way, to considerably increase the quality of formed and hardened components made of higher-strength steel.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (12)

  1. Procédé pour fabriquer une pièce trempée en un acier capable d'être trempé, dans lequel la bande d'acier est soumise dans un four à une augmentation de température et exposée de ce fait à un traitement oxydant, de sorte que l'on engendre une couche d'oxyde superficielle, et on exécute ensuite un revêtement avec un métal ou avec un alliage de métal, et la bande est réchauffée pour produire une pièce au moins partiellement trempée et est au moins partiellement austénitisée et ensuite refroidie et de ce fait trempée, dans lequel, pour engendrer une couche ductile en surface (7), les oxydes à la surface sont partiellement réduits avant le revêtement avec un métal ou avec un alliage de métal, de sorte que l'on engendre une couche réduite très mince (4) qui se trouve sur la couche d'oxyde restante (3), et il se trouve dans la bande au-dessous de la couche d'oxyde (3) une zone d'oxydation intérieure (3a) dans laquelle les éléments de l'alliage d'acier se présentent au moins partiellement sous forme oxydée.
  2. Procédé selon la revendication 1, caractérisé en ce qu'après avoir engendré la couche d'oxyde superficielle (3) on exécute un traitement réducteur afin d'annuler l'oxydation en surface et d'engendrer une couche réduite (4) sur la couche (3), et on exécute ensuite un revêtement avec un métal ou avec un alliage de métal, tel que l'oxydation et la réduction sont cependant ainsi exécutées qu'après la réduction en surface et le revêtement, il demeure une couche d'oxyde (3) entre le revêtement et la bande d'acier.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le revêtement métallique est réalisé sous forme de revêtement au trempé avec un métal liquide en fusion ou avec un alliage de métal liquide en fusion, ou par déposition galvanique d'un ou plusieurs métaux sur la bande, ou par des procédés de déposition chimique ou physique en phase vapeur.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que le traitement oxydant est exécuté au moyen d'une atmosphère oxydante et/ou d'une atmosphère contenant de la vapeur d'eau dans la chambre du four.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que le degré d'oxydation et l'épaisseur de la couche d'oxyde sont réglés par la part des agents d'oxydation dans l'atmosphère de traitement et/ou par la durée du traitement et/ou par la hauteur de la température et/ou par la concentration de vapeur d'eau dans la chambre du four.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que le revêtement a lieu avec de l'aluminium ou avec un alliage contenant essentiellement de l'aluminium ou un alliage d'aluminium et de zinc et/ou d'un autre alliage de zinc contenant essentiellement du zinc et/ou d'autres métaux de revêtement.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que la chambre du four dans laquelle on exécute l'oxydation et/ou la réduction est réchauffée directement ou indirectement.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que la chambre du four dans laquelle on exécute l'oxydation et/ou la réduction est réchauffée au moyen de brûleur à gaz et/ou à mazout et/ou par convection, ou en ce que la bande d'acier est chauffée par induction.
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'on exécute l'oxydation de telle façon qu'à la fin de l'oxydation on obtient une couche d'oxydation d'une épaisseur supérieure à 300 nm, et on exécute la réduction successive de telle façon que la couche d'oxyde est partiellement réduite depuis la surface.
  10. Bande d'acier réalisée à partir d'un acier capable d'être trempé, comprenant un substrat en acier (1) et un revêtement métallique appliqué sur celui-ci et, dans lequel, dans la zone frontière dans laquelle le revêtement métallique (5) est réalisé de manière à s'appliquer sur le substrat en acier (1), il existe une couche d'oxydation (3) du substrat en acier (1), et il existe une couche de réduction (4) sur la couche d'oxydation (3).
  11. Bande d'acier selon la revendication 10, caractérisée en ce que le revêtement métallique (5) est en aluminium ou essentiellement en aluminium, en un alliage d'aluminium, en un alliage aluminium-zinc, en un alliage de zinc contenant essentiellement du zinc, un alliage zinc-fer, ou est essentiellement en zinc.
  12. Utilisation d'une bande d'acier selon l'une des revendications 10 à 11 pour réaliser des pièces trempées à la presse, dans lesquelles la pièce est austénitisée par déformation à froid et ensuite trempée, ou bien la pièce est austénitisée, déformée et trempée.
EP08864850A 2007-12-20 2008-12-18 Procédé servant à fabriquer des pièces en acier revêtues et trempées et bande d'acier correspondante revêtue et pouvant être trempée Active EP2220259B9 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007061489A DE102007061489A1 (de) 2007-12-20 2007-12-20 Verfahren zum Herstellen von gehärteten Bauteilen aus härtbarem Stahl und härtbares Stahlband hierfür
PCT/EP2008/010850 WO2009080292A1 (fr) 2007-12-20 2008-12-18 Procédé servant à fabriquer des pièces en acier revêtues et trempées et bande d'acier correspondante revêtue et pouvant être trempée

Publications (3)

Publication Number Publication Date
EP2220259A1 EP2220259A1 (fr) 2010-08-25
EP2220259B1 EP2220259B1 (fr) 2012-08-15
EP2220259B9 true EP2220259B9 (fr) 2012-12-19

Family

ID=40548658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08864850A Active EP2220259B9 (fr) 2007-12-20 2008-12-18 Procédé servant à fabriquer des pièces en acier revêtues et trempées et bande d'acier correspondante revêtue et pouvant être trempée

Country Status (11)

Country Link
US (1) US9090951B2 (fr)
EP (1) EP2220259B9 (fr)
JP (1) JP5776961B2 (fr)
KR (1) KR20100113492A (fr)
CN (1) CN101918599B (fr)
BR (1) BRPI0817353B1 (fr)
CA (1) CA2705700C (fr)
DE (1) DE102007061489A1 (fr)
ES (1) ES2393093T3 (fr)
MX (1) MX2010005433A (fr)
WO (1) WO2009080292A1 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY160065A (en) 2009-08-31 2017-02-15 Nippon Steel Corp High-strength galvanized steel sheet nad method of manufacturing the same
DE102009044861B3 (de) * 2009-12-10 2011-06-22 ThyssenKrupp Steel Europe AG, 47166 Verfahren zum Herstellen eines gut umformbaren Stahlflachprodukts, Stahlflachprodukt und Verfahren zur Herstellung eines Bauteils aus einem solchen Stahlflachprodukt
KR101798257B1 (ko) 2010-02-19 2017-11-15 타타 스틸 네덜란드 테크날러지 베.뷔. 열간 성형에 적당한 스트립, 시트 또는 블랭크, 및 이의 제조 방법
US9677145B2 (en) * 2011-08-12 2017-06-13 GM Global Technology Operations LLC Pre-diffused Al—Si coatings for use in rapid induction heating of press-hardened steel
RU2014137550A (ru) * 2012-05-03 2016-06-27 Магна Интернэшнл Инк. Автомобильные компоненты, сформованные из тонколистового металла, покрытого неметаллическим покрытием
WO2014037627A1 (fr) 2012-09-06 2014-03-13 Arcelormittal Investigación Y Desarrollo Sl Procede de fabrication de pieces d'acier revêtues et durcies a la presse, et tôles prerevêtues permettant la fabrication de ces pieces
CN103160764A (zh) * 2013-03-25 2013-06-19 冷水江钢铁有限责任公司 一种复合带钢的单面连续热镀锌方法
PT2984198T (pt) * 2013-04-10 2021-09-22 Tata Steel Ijmuiden Bv Produto formado por moldação a quente de chapa de aço com revestimento metálico, método de formação do produto, e banda de aço
AU2014265241B2 (en) 2013-05-17 2017-01-19 Ak Steel Properties, Inc. Zinc-coated steel for press hardening application and method of production
CN103320589B (zh) * 2013-06-11 2014-11-05 鞍钢股份有限公司 一种防止高镍钢坯加热过程氧化的方法
DE102013015032A1 (de) * 2013-09-02 2015-03-05 Salzgitter Flachstahl Gmbh Zinkbasierte Korrosionsschutzbeschichtung für Stahlbleche zur Herstellung eines Bauteils bei erhöhter Temperatur durch Presshärten
JP2017066508A (ja) 2015-10-02 2017-04-06 株式会社神戸製鋼所 熱間プレス用亜鉛めっき鋼板および熱間プレス成形品の製造方法
DE102015016656A1 (de) * 2015-12-19 2017-06-22 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Verfahren zur Herstellung eines beschichteten, durch Warmumformung gehärteten Körpers sowie ein nach dem Verfahren hergestellter Körper
DE102016102344B4 (de) * 2016-02-10 2020-09-24 Voestalpine Metal Forming Gmbh Verfahren und Vorrichtung zum Erzeugen gehärteter Stahlbauteile
DE102016102324B4 (de) * 2016-02-10 2020-09-17 Voestalpine Metal Forming Gmbh Verfahren und Vorrichtung zum Erzeugen gehärteter Stahlbauteile
GB201611342D0 (en) * 2016-06-30 2016-08-17 Ge Oil & Gas Uk Ltd Sacrificial shielding
DE102017210201A1 (de) * 2017-06-19 2018-12-20 Thyssenkrupp Ag Verfahren zur Herstellung eines mit einem metallischen, vor Korrosion schützenden Überzug versehenen Stahlbauteils
DE102017211753A1 (de) * 2017-07-10 2019-01-10 Thyssenkrupp Ag Verfahren zur Herstellung eines pressgehärteten Bauteils
JP6740973B2 (ja) * 2017-07-12 2020-08-19 Ｊｆｅスチール株式会社 溶融亜鉛めっき鋼板の製造方法
DE102018217835A1 (de) 2018-10-18 2020-04-23 Sms Group Gmbh Verfahren zum Herstellen eines warmumformbaren Stahlflachprodukts
DE102018222063A1 (de) * 2018-12-18 2020-06-18 Volkswagen Aktiengesellschaft Stahlsubstrat zur Herstellung eines warmumgeformten und pressgehärteten Stahlblechbauteils sowie Warmumformverfahren
DE102019108459B4 (de) * 2019-04-01 2021-02-18 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung eines Stahlbandes mit verbesserter Haftung metallischer Schmelztauchüberzüge
JP7243949B1 (ja) * 2021-10-29 2023-03-22 Ｊｆｅスチール株式会社 熱間プレス部材
WO2023074115A1 (fr) * 2021-10-29 2023-05-04 Ｊｆｅスチール株式会社 Élément pressé à chaud

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE435527B (sv) 1973-11-06 1984-10-01 Plannja Ab Forfarande for framstellning av en detalj av herdat stal
JPH0627315B2 (ja) * 1985-07-01 1994-04-13 川崎製鉄株式会社 高張力合金化溶融亜鉛めつき鋼板の製造方法
JPH01159318A (ja) * 1987-12-16 1989-06-22 Kawasaki Steel Corp 中炭素低合金強靭鋼の製造方法
JPH0624860A (ja) 1992-07-09 1994-02-01 Kurosaki Refract Co Ltd アルミナ質多孔体の製造方法
AU723565B2 (en) * 1996-05-31 2000-08-31 Kawasaki Steel Corporation Plated steel sheet
FR2780984B1 (fr) 1998-07-09 2001-06-22 Lorraine Laminage Tole d'acier laminee a chaud et a froid revetue et comportant une tres haute resistance apres traitement thermique
FR2807447B1 (fr) * 2000-04-07 2002-10-11 Usinor Procede de realisation d'une piece a tres hautes caracteristiques mecaniques, mise en forme par emboutissage, a partir d'une bande de tole d'acier laminee et notamment laminee a chaud et revetue
KR100603427B1 (ko) * 2000-04-24 2006-07-20 제이에프이 스틸 가부시키가이샤 합금화 용융아연도금강판
KR100747133B1 (ko) * 2001-06-06 2007-08-09 신닛뽄세이테쯔 카부시키카이샤 고가공(高加工)시의 내피로성, 내식성, 연성 및 도금부착성을 갖는 고강도 용융 아연 도금 강판 및 합금화 용융아연 도금 강판
FR2828888B1 (fr) * 2001-08-21 2003-12-12 Stein Heurtey Procede de galvanisation a chaud de bandes metalliques d'aciers a haute resistance
JP2003193213A (ja) * 2001-12-21 2003-07-09 Kobe Steel Ltd 溶融亜鉛めっき鋼板および合金化溶融亜鉛めっき鋼板
PT1660693E (pt) 2003-07-29 2015-01-05 Voestalpine Krems Gmbh Processo de produção de um elemento de perfil temperado
DE102004059566B3 (de) 2004-12-09 2006-08-03 Thyssenkrupp Steel Ag Verfahren zum Schmelztauchbeschichten eines Bandes aus höherfestem Stahl
KR100892815B1 (ko) * 2004-12-21 2009-04-10 가부시키가이샤 고베 세이코쇼 용융 아연 도금 방법 및 용융 아연 도금 설비
CN101994073B (zh) * 2005-03-30 2012-06-27 新日本制铁株式会社 热浸镀热轧钢板的制造设备
EP1826289A1 (fr) 2006-02-28 2007-08-29 Ocas N.V. Tôle d'acier revetué avec un revêtement à base d'alumimium et ayant une formabilité amelloreé
JP4972775B2 (ja) 2006-02-28 2012-07-11 Ｊｆｅスチール株式会社 外観性とめっき密着性に優れる高強度溶融亜鉛めっき鋼板の製造方法
DE102007022174B3 (de) 2007-05-11 2008-09-18 Voestalpine Stahl Gmbh Verfahren zum Erzeugen und Entfernen einer temporären Schutzschicht für eine kathodische Beschichtung

Also Published As

Publication number Publication date
JP2011508824A (ja) 2011-03-17
CA2705700A1 (fr) 2009-07-02
BRPI0817353A2 (pt) 2015-03-31
MX2010005433A (es) 2010-06-18
ES2393093T3 (es) 2012-12-18
CA2705700C (fr) 2016-04-26
US9090951B2 (en) 2015-07-28
US20110076477A1 (en) 2011-03-31
CN101918599A (zh) 2010-12-15
WO2009080292A1 (fr) 2009-07-02
KR20100113492A (ko) 2010-10-21
BRPI0817353B1 (pt) 2017-06-06
DE102007061489A1 (de) 2009-06-25
EP2220259B1 (fr) 2012-08-15
EP2220259A1 (fr) 2010-08-25
JP5776961B2 (ja) 2015-09-09
CN101918599B (zh) 2016-06-01

Similar Documents

Publication Publication Date Title
EP2220259B9 (fr) Procédé servant à fabriquer des pièces en acier revêtues et trempées et bande d'acier correspondante revêtue et pouvant être trempée
EP2656187B1 (fr) Procédé de fabrication de composants durcis
EP2553133B1 (fr) Acier, produit plat en acier, élément en acier et procédé de fabrication d'un élément en acier
EP3215656B1 (fr) Procédé de production d'un revêtement anti-corrosion pour tôles d'acier trempables et revêtement anti-corrosion pour tôles d'acier trempables
EP3041969B1 (fr) Revêtement de protection contre la corrosion à base de zinc aux tôles d'acier pour la fabrication d'un article à chaud par trempe sous presse
DE102011053939B4 (de) Verfahren zum Erzeugen gehärteter Bauteile
WO2015036151A1 (fr) Procédé de fabrication d'un élément de construction en acier doté d'un revêtement de protection anticorrosion métallique et élément de construction en acier
WO2005021820A1 (fr) Procede de production d'un element constitutif profile trempe
AT412878B (de) Korrosionsgeschütztes stahlblechteil mit hoher festigkeit
DE102010056265B3 (de) Verfahren zum Erzeugen gehärteter Bauteile
EP3250727B2 (fr) Procédé de fabrication d'une pièce constituée de tôle d'acier revêtue à base d'aluminium durcie par moulage par compression
WO2016078644A1 (fr) Acier polyphasé, trempé à l'air et à haute résistance, ayant d'excellentes propriétés de mise en oeuvre et procédé de production d'une bande avec cet acier
WO2011069906A2 (fr) Procédé de fabrication d'un produit en acier plat facilement formable et procédé de fabrication d'une pièce à partir d'un tel produit en acier plat
EP3303647B1 (fr) Composant formé à chaud en acier galvanisé, procédé de fabrication de celui-ci et procédé de fabrication d'une bande d'acier appropriée au formage à chaud de composants
EP3867058A1 (fr) Procédé de fabrication d'un produit en acier plat thermofaçonné
DE102017002385A1 (de) Verfahren und Karosseriehalbzeug zum Herstellen eines Karosseriebauteils für einen Kraftwagen

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: 20100428

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MANZENREITER, THOMAS

Inventor name: KURZ, THOMAS

Inventor name: BRANDSTAETTER, WERNER

Inventor name: PERUZZI, MARTIN

Inventor name: KOLNBERGER, SIEGFRIED

Inventor name: STRUTZENBERGER, JOHANN

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20111124

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502008007988

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: C21D0008020000

Ipc: C23C0002280000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: C23C 2/12 20060101ALI20120103BHEP

Ipc: C21D 8/02 20060101ALI20120103BHEP

Ipc: C23C 2/02 20060101ALI20120103BHEP

Ipc: C23C 2/06 20060101ALI20120103BHEP

Ipc: C23C 2/28 20060101AFI20120103BHEP

Ipc: C21D 1/68 20060101ALI20120103BHEP

Ipc: C21D 9/46 20060101ALI20120103BHEP

Ipc: C21D 9/48 20060101ALI20120103BHEP

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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 570901

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120815

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: 502008007988

Country of ref document: DE

Effective date: 20121011

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2393093

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20121218

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008007988

Country of ref document: DE

Representative=s name: NAEFE, JAN ROBERT, DIPL.-ING., DE

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

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: 20120815

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: 20120815

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: 20120815

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: 20121115

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: 20120815

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: 20121215

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: 20121217

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: 20120815

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: 20120815

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: 20120815

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: 20121116

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: 20120815

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: 20120815

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: 20120815

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: 20120815

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: 20120815

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: 20130516

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 NON-PAYMENT OF DUE FEES

Effective date: 20121231

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: 20121115

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008007988

Country of ref document: DE

Effective date: 20130516

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: LI

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

Effective date: 20121231

Ref country code: IE

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

Effective date: 20121218

Ref country code: CH

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

Effective date: 20121231

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: 20120815

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: 20121218

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

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

Effective date: 20081218

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230515

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

Ref country code: GB

Payment date: 20231227

Year of fee payment: 16

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

Ref country code: TR

Payment date: 20231206

Year of fee payment: 16

Ref country code: SE

Payment date: 20231227

Year of fee payment: 16

Ref country code: NL

Payment date: 20231226

Year of fee payment: 16

Ref country code: IT

Payment date: 20231220

Year of fee payment: 16

Ref country code: FR

Payment date: 20231227

Year of fee payment: 16

Ref country code: AT

Payment date: 20231204

Year of fee payment: 16

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

Ref country code: BE

Payment date: 20231227

Year of fee payment: 16

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

Ref country code: ES

Payment date: 20240102

Year of fee payment: 16

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

Ref country code: DE

Payment date: 20231229

Year of fee payment: 16