WO2009047183A1 - Procédé de production d'un composant en acier par façonnage à chaud, et composant en acier obtenu par façonnage à chaud - Google Patents

Procédé de production d'un composant en acier par façonnage à chaud, et composant en acier obtenu par façonnage à chaud Download PDF

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Publication number
WO2009047183A1
WO2009047183A1 PCT/EP2008/063139 EP2008063139W WO2009047183A1 WO 2009047183 A1 WO2009047183 A1 WO 2009047183A1 EP 2008063139 W EP2008063139 W EP 2008063139W WO 2009047183 A1 WO2009047183 A1 WO 2009047183A1
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WO
WIPO (PCT)
Prior art keywords
coating
weight
steel
flat
thermoforming
Prior art date
Application number
PCT/EP2008/063139
Other languages
German (de)
English (en)
Inventor
Barbara Lupp
Sabine Hasenfuss
Ansgar Albers
Manfred Meurer
Wilhelm Warnecke
Original Assignee
Thyssenkrupp Steel Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Thyssenkrupp Steel Ag filed Critical Thyssenkrupp Steel Ag
Priority to US12/681,286 priority Critical patent/US20100294400A1/en
Publication of WO2009047183A1 publication Critical patent/WO2009047183A1/fr

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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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • 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
    • 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C2/0224—Two or more thermal pretreatments
    • 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
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
    • 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

Definitions

  • the invention relates to a method for producing a steel component provided with a metallic coating which protects against corrosion, in particular by a cathodic protective effect, by thermoforming a flat steel product produced from a low-alloy tempered steel. Moreover, the invention relates to a steel component produced by thermoforming a flat steel product and provided with a corrosion protection coating which protects against corrosion, in particular by a cathodic protective action.
  • a process that allows the production of correspondingly high-strength and at the same time thin-walled steel components is hot-press hardening.
  • a circuit board is first cut from a steel strip. This board is then heated to a thermoforming temperature that is typically above the Ar3 temperature of the particular steel material being processed. The thus heated board is then placed in the warm state in a ümformwerkmaschinemaschine and brought into the desired component shape. Subsequently, or meanwhile, there is a cooling of the molded component, in which a Vergutungs- or Hartegefuge arises in the processed steel.
  • low alloyed steels are suitable for compression molding.
  • these steels are sensitive to corrosive attacks to which they are exposed, especially when they are used for the construction of vehicle bodies.
  • the thus assembled steel strip is provided according to EP 0 971 044 Bl with a coating based on aluminum or an aluminum alloy.
  • this coating is an AlSi coating which has Fe contents.
  • the thus coated steel strip is heated to a temperature of more than 750 0 C, formed into a component and then cooled at a Abkuhl Anlagen under which forms a Hartegefuge.
  • the steel component produced in the manner known from EP 0 971 044 B1 has, in addition to good strength properties, a fundamentally good resistance to corrosion.
  • steel components made available in accordance with this prior art can be used to produce steel components in just one hot stamping step without damaging the Al coating.
  • the Al-based coated steel used in the known manner lacks an essential property which damages the steel upon injury cathodic protects against corrosion. This sensitivity proves to be particularly problematic when using the processed by the known method steels in the field of bodywork for automobiles.
  • the object of the invention was to provide an economical process for the production of high-strength steel components, which have optimized corrosion protection and are particularly suitable for use in automobile bodies.
  • a suitably procured steel component should be created.
  • a metallic coating is produced on a flat steel product produced from a low-alloy tempered steel, which consists of two successively applied in two process steps Layers is formed.
  • the tempering steel may be, for example, a Mn-B steel, as it is already widely used in the prior art.
  • the flat steel product produced from the suitably composed tempered steel is present with an Al coating containing at least 85% by weight of Al, with additional contents of up to 15% by weight being present in the Al coating applied according to the invention could be.
  • Typical variants of the Al coating applied according to the invention are a coating consisting almost entirely of Al or an AlSi variant in which the Si content of the applied AlSi coating amounts to 8-12% by weight of Si.
  • a Zn coating is applied to this Al coating, which consists of at least 90 wt .-% of zinc.
  • the two-layer coated steel flat product is then heated to a hot forming temperature of at least 750 ° C.
  • a hot forming temperature typically at least 750 ° C.
  • the heated to the hot forming temperature flat steel product is thermoformed in a further step in a conventional manner to the respective component and in one for the desired training of Vergutungs- or Hartegefuges accelerated cooled.
  • thermoforming temperature to temperature may be preceded by dividing the flat product which has previously been present as a strip in the manner of the invention in two layers into sheets.
  • each of the individual coating steps can be preceded by a cleaning of the surface of the flat steel product or of the coating applied thereto.
  • coated flat steel product proved both for a direct, d. h as a one-step work step without previous cold forming performed thermoforming, as well as for an indirect, d. H. at least two-stage shaping characterized by a succession of cold working and hot working.
  • each thermoforming carried out in a steel component according to the invention is a zinc alloy Surface having a zinc content of at least 60 wt .-%, in particular of at least 80 wt .-%, before.
  • the accelerated corrosion test salt spray fog test
  • coatings produced according to the invention have a resistance to corrosion which is at least comparable to pure zinc excesses.
  • the high level of Al having, disposed between the Zn-dominated top layer and the respective steel substrate base layer of the inventive metallic Automatuberzugs protects this against excessive zinc and iron diffusion during the heat treatment in accordance with the invention preferably in the range of 750 to 900 0 C in particular 850 to 900 0 C chosen
  • the barrier effect of the base layer is the delayed formation of red rust on the surface.
  • the base coat prevents zinc from reaching the grain boundaries of the steel substrate, which has the potential to cause hot working cracking.
  • the Al-Fe-Zn-Si-containing base layer of the overall coating produced according to the invention protects the steel substrate particularly effectively against oxidation with the oxygen of the environment. With the procedure according to the invention, a particularly economically viable option of producing optimized corrosion-protected components made of high-strength hot-press-formable steel is thus available.
  • a steel component obtained in accordance with the invention carries a metallic coating which is formed by a base layer resting on the flat steel product and a cover layer lying on the base layer, the base layer containing at least 30% by weight Al, at least 20% by weight.
  • % Fe and at least 3 wt .-% Si and the top layer at least 60 wt .-% Zn, in particular at least 80 wt .-%, and at least 5 wt% Al and up to 10 wt .-% Fe and up to 10 wt .-% Si has.
  • the Al coating can be applied to the respective flat steel product as a first coating layer by fireruminating in a particularly economical manner while at the same time providing optimum coating results.
  • the Zn coating can also be applied to the previously applied to the flat steel product AI layer by a hot dip galvanizing particularly economically in a comparable manner known per se and preserved in practice.
  • the Zn coating is deposited electrolytically on the Al coating as an alternative to hot-dip galvanizing.
  • electrolytic galvanizing is preferably a layer with a Zn content of at least 99 wt .-% deposited.
  • the Zn coating is deposited on the Al coating in a PVD process.
  • PVD physical vapor reduction
  • hot-dip galvanizing and when applying by PVD method can be at least one other element of Al, Mg or Fe contained in addition to Zn.
  • the contents should not exceed 5% by weight Al, 5% by weight Mg and / or 0.5% by weight Si.
  • the contents of other accompanying elements in the Zn coating should not exceed 1 wt .-% in total.
  • the flat products coated according to the invention are passed through an acid bath which unwinds the oxide layer from them, without attacking the surface of the flat steel product itself.
  • the Oxidabtrag is controlled so that you get a favorable set for the electrolytic strip galvanizing surface.
  • the process according to the invention can be carried out in a particularly economical manner when the Al coating and then the Zn coating and all the work steps required between the respective coating steps are completed in a sequence of operations continuously following each other.
  • coated steel strip according to the invention proves to be particularly insensitive to those in hot forming in one Traces occurring even if the respective component is given a complex shape.
  • the flat steel product may undergo at least one cold forming step before being heated to the hot forming temperature.
  • the deformation can take place almost completely during the cold forming, so that in this case the hot forming step carried out after the cold forming represents rather a warm calibration with subsequent quenching in the tool.
  • the Al coating applied to the flat steel product before heating to the thermoforming temperature has a thickness of 5 to 25 ⁇ m, in particular 5 to 15 ⁇ m
  • the Zn coating applied to the AlSi coating Heating to the thermoforming temperature has a thickness of 2 - 10 microns.
  • investigations have shown that especially when the AlSi coating is applied by fire aluminizing, prior to heating to the thermoforming temperature between the flat steel product and the correspondingly applied AlSi coating a 2-5 .mu.m thick, Al, Si and Fe containing alloy boundary layer available is.
  • one according to the invention has two work procedures deforming flat product applied metallic coating typically has a total thickness of 7 - 35 microns on.
  • a base layer lying directly on the flat steel product and consisting predominantly of Al and additional Fe, Zn and Si is present, on which predominantly Zn and additional contents are present Al, Si and Fe existing cover layer is located.
  • the base layer has at least 30 wt .-% Al, at least 20 wt .-% Fe, at least 3 wt .-% Si and at most 30 wt .-% Zn, while in the top layer at least 60 wt .-%, in particular at least 80 wt .-%, Zn at least 5 wt .-% Al and at most 10 wt .-% Fe and at most 10 wt .-% Si are present.
  • the thickness of the base layer of the finished molded component according to the invention is typically 10 to 50 ⁇ m, in particular 15 to 25 ⁇ m, while the thickness of the cover layer is typically in the range of 5 to 20 ⁇ m, in particular 3 to 10 ⁇ m.
  • Fig. 1 is a schematic representation of a first inventive workflow in the coating of a flat steel product
  • 2 is a schematic representation of a second inventive workflow in the coating of a flat steel product.
  • Fig. 3 is a schematic representation of a third process according to the invention in the coating of a flat steel product
  • FIG. 4 shows a schematic illustration of a fourth workflow according to the invention in the coating of a flat steel product
  • FIG. 5 is a schematic representation of a fifth inventive workflow in the coating of a flat steel product.
  • FIG. 6 shows a comparison of the layer structure on a flat steel product coated according to the invention before and after heating to thermoforming temperature
  • FIG. 8 shows a detail of a microsection of a steel flat product coated according to the invention before heating to forming temperature
  • FIG. 9 shows a detail of a micrograph of a steel flat product coated according to the invention after heating to deformation temperature.
  • the figures 1 to 5 various possibilities of practical implementation of the erfmdungsgespecializeden method are exemplified. In each case, the respective examples are based on a cold-rolled steel strip which is produced, for example, from the known 22MnB5 steel.
  • Fig. 2 shows an example in which the operations indicated in Fig. 1 are run through, but not in a continuous, but m a broken sequence.
  • the strip is wound into a coil, transferred to an electrolytically working coating machine, cleaned and de-capped there and then electrolytically provided with the Zn coating applied to the AlSi coating ,
  • Fig. 5 gives an example of a procedure in which the steel strip is first cleaned, then fire-aluminized (ie, annealed and passed through an AlSi melt bath), then finish rolled, then cleaned, and finally by application of a PVD Process is coated with the Zn layer.
  • Fig. 6 shows in its left half the layer structure of a coating, as it is present in accordance with the invention procedure before heating to thermoforming temperature.
  • the overlying AlSi layer typically containing 90 wt% and 10 wt% Si, is one
  • Alloy layer formed containing Al, Si and Fe Alloy layer formed containing Al, Si and Fe.
  • the layer structure of Bacabszugs is shown, which is at a temperature of more than five minutes extending heating of the layer structure shown in the left half of 900 0 C. Accordingly, after this heating on the steel substrate, a base layer consisting of 40% by weight of Al, 30% by weight of Fe, 20% by weight of Zn and 5% by weight of Si, on which a covering layer consisting of 80% by weight of Zn, 16% by weight of Al, 2% by weight of Si and 2% by weight of Fe. Covering layer and base layer together form the overall coating there as well.
  • a steel strip made of a hardenable steel having a carbon content of 0.22%, a Mn content of 1.2%, a Cr content of 0.20% and a B content of 0.003% is used as a cold-rolled strip in annealed in a continuous hot dip coating line and coated with an AlSi melt.
  • the tape was first cleaned in a cleaning of the Schmutzrucklines from the cold rolling process and then went through an annealing furnace by it has been heated to 750 0 C.
  • the strip has been annealed recrystallizing in the annealing furnace in a protective gas atmosphere with 10% H 2 and balance N 2 .
  • the band After cooling to a temperature of 680 0 C (also still under inert gas 10% H 2 , balance N 2 ), the band has entered an aluminum bath with a temperature of 660 0 C.
  • the aluminum bath additionally contained about 10% by weight of silicon.
  • the strip After cooling the strip to ⁇ 50 0 C is performed by skin-pass rolling in a Dressiergerust the adjustment of the surface roughness of the tape provided with the AlSi-coating. In a subsequent section of the production line, the strip was then first chemically treated in an aqueous solution with 80 g / l HCl (hydrochloric acid) for 10 s at 40 0 C.
  • thermoforming temperature 880 0 C for 5 min.
  • the layer structure present before heating to the hot forming temperature is shown in FIG. 8.
  • FIG. 9 shows the overall coating present on the component produced in this way.
  • a steel strip made of a hardenable steel is as a cold-rolled strip in a continuous Hot dip coating line annealed and coated.
  • the tape has first been cleaned and annealed as in Example 1. Subsequently, it has undergone an aluminum-silicon bath (Si content 10%) whose temperature was 660 0 C. The subsequently set by Abstreifdusen thickness of the resulting AlSi coating was 15 microns. After a Kuhltier, over which the tape has been cooled to 480 0 C, the tape is immersed in a second molten bath of zinc, which was provided with an addition of 0.2% Al. With the subsequent Abstreifdusen a zinc coating thickness of 5 microns has been set. After cooling the strip to ⁇ 50 0 C, the setting of the surface roughness was carried out in a temper mill. Finally, the tape has been wound into a finished coil.
  • a steel strip of a hardenable steel has been annealed and coated as a cold-rolled strip in a continuous hot dip coating line.
  • the tape is first cleaned as in Example 1, annealed and provided with an AlSi coating.
  • the coating thickness set by the stripping nozzles amounts to 20 ⁇ m in this case.
  • After cooling the strip to ⁇ 50 0 C was carried out by temper rolling in a temper rolling the adjustment of the surface roughness.
  • the tape was first cleaned alkaline, then to be coated in a PVD module with a zinc coating of 3 microns. Finally, the tape has been wound into a finished coil.
  • Blanks were cut from the coated strip for the hot forming process and heated in an oven at 900 0 C for 5 min. Subsequently, the boards are converted by means of manipulator in a forming press and here converted into a component and cooled in the tool accelerated.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

L'invention concerne un procédé de production d'un composant en acier présentant un revêtement métallique anticorrosion, procédé caractérisé en ce qu'il comprend les étapes suivantes : recouvrement par un produit plat en acier à revêtement en Al, obtenu à partir d'un acier de traitement faiblement allié, renfermant au moins 85% en poids d'Al et, éventuellement, jusqu'à 15% en poids de Si; recouvrement du produit plat en acier à revêtement en Al, par un revêtement en Zn renfermant au moins 90% en poids de Zn; chauffage du produit plat en acier à une température de façonnage à chaud s'élevant au moins à 750°C; façonnage à chaud du composant en acier chauffé, à partir du produit plat en acier, et refroidissement suffisamment rapide du composant en acier façonné à chaud, pour la formation d'une structure de revenu ou d'une structure de trempe.
PCT/EP2008/063139 2007-10-02 2008-10-01 Procédé de production d'un composant en acier par façonnage à chaud, et composant en acier obtenu par façonnage à chaud WO2009047183A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/681,286 US20100294400A1 (en) 2007-10-02 2008-10-01 Method for producing a steel component by hot forming and steel component produced by hot forming

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07117719.0 2007-10-02
EP07117719A EP2045360B1 (fr) 2007-10-02 2007-10-02 Procédé de fabrication d'un composant en acier par façonnage à chaud et composant en acier fabriqué par façonnage à chaud

Publications (1)

Publication Number Publication Date
WO2009047183A1 true WO2009047183A1 (fr) 2009-04-16

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PCT/EP2008/063139 WO2009047183A1 (fr) 2007-10-02 2008-10-01 Procédé de production d'un composant en acier par façonnage à chaud, et composant en acier obtenu par façonnage à chaud

Country Status (4)

Country Link
US (1) US20100294400A1 (fr)
EP (1) EP2045360B1 (fr)
AT (1) ATE535631T1 (fr)
WO (1) WO2009047183A1 (fr)

Cited By (4)

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ES2345029A1 (es) * 2010-04-19 2010-09-13 Autotech Engieneering, Aie Componente estructural de un vehiculo y procedimiento de fabricacion.
WO2015149901A1 (fr) * 2014-03-29 2015-10-08 Daimler Ag Composant, en particulier composant structural conçu pour un véhicule à moteur et procédé de production d'un composant
DE102017208727A1 (de) 2017-05-23 2018-11-29 Thyssenkrupp Ag Verbesserung der Kaltumformeignung aluminiumbasierter Beschichtung durch Zulegieren von Erdalkalimetallen
CN115261714A (zh) * 2021-04-29 2022-11-01 宝山钢铁股份有限公司 一种压力容器用钢及其制备方法

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DE102009015160A1 (de) 2009-03-26 2010-09-30 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung eines beschicht- und/oder fügbaren Blechformteils mit einer Korrosionsschutzbeschichtung
DE102009051673B3 (de) * 2009-11-03 2011-04-14 Voestalpine Stahl Gmbh Herstellung von Galvannealed-Blechen durch Wärmebehandlung elektrolytisch veredelter Bleche
DE102011051458B3 (de) * 2011-06-30 2012-07-05 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung von pressgehärteten Formbauteilen
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
JP6113539B2 (ja) * 2013-03-18 2017-04-12 日新製鋼株式会社 めっき鋼板の製造方法
EP2848709B1 (fr) 2013-09-13 2020-03-04 ThyssenKrupp Steel Europe AG Procédé de fabrication d'un composant en acier revêtu d'une coiffe métallique protégeant de la corrosion et composant en acier
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WO2016132165A1 (fr) * 2015-02-19 2016-08-25 Arcelormittal Procede de fabrication d'une piece phosphatable a partir d'une tole revetue d'un revetement a base d'aluminium et d'un revetement de zinc
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