US20090139872A1 - Method for producing a sheet steel product protected against corrosion - Google Patents

Method for producing a sheet steel product protected against corrosion Download PDF

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Publication number
US20090139872A1
US20090139872A1 US12/066,962 US6696206A US2009139872A1 US 20090139872 A1 US20090139872 A1 US 20090139872A1 US 6696206 A US6696206 A US 6696206A US 2009139872 A1 US2009139872 A1 US 2009139872A1
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US
United States
Prior art keywords
coating
flat steel
steel product
zinc
process according
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.)
Abandoned
Application number
US12/066,962
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English (en)
Inventor
Nicole Weiher
Bernd Schuhmacher
Michael Steinhorst
Andreas Klare
Tamara Appel
Ralf Bause
Stefan Kohler
Krasimir Nikolov
Monika Riemer
Slavcho Topalski
Frank Friedel
Wilfried Prange
Reinhard Schulski
Christian Schwerdt
Rolf Bode
Brigitte Bode
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.)
ThyssenKrupp Steel Europe AG
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
Application filed by ThyssenKrupp Steel AG filed Critical ThyssenKrupp Steel AG
Assigned to THYSSENKRUPP STEEL AG reassignment THYSSENKRUPP STEEL AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BODE, ROLF, PRANGE, WILFRIED, KLARE, ANDREAS, RIEMER, MONIKA, SCHWERDT, CHRISTIAN, TOPALSKI, SLAVCHO, SCHUHMACHER, BERND, BAUSE, RALF, NIKOLOV, KRASIMIR, WEIHER, NICOLE, STEINHORST, MICHAEL, APPEL, TAMARA, SCHULZKI, REINHARD, FRIEDEL, FRANK, KOHLER, STEFAN
Publication of US20090139872A1 publication Critical patent/US20090139872A1/en
Abandoned legal-status Critical Current

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    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/10—Other heavy metals
    • 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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/20—Other heavy metals

Definitions

  • the invention relates to a process for manufacturing corrosion-resistant flat steel products, which are provided at least with a first zinc-containing coating, and a second coating lying thereon, which is based on pure magnesium or a magnesium alloy.
  • Such processes are used for example to produce sheet steel, which due to its optimized corrosion resistance is particularly suitable for use in the construction, domestic appliance or motor vehicle industries.
  • Coatings which in the predominant number of applications, consist of zinc or zinc alloys are applied to sheet steel in order to improve its corrosion resistance.
  • Such zinc or zinc alloy coatings due to their barrier and cathodic protection effect, ensure very good corrosion resistance of the coated sheet steel.
  • higher and higher requirements in the corrosion resistance and general characteristics of coated sheet steel are demanded by the processors.
  • Galvanized sheet steel is usually converted to consumer articles by forming, joining, organic coating (for example painting) or similar processes. Particularly in the field of motor vehicle body construction the bonding together of preformed steel parts is gaining acceptance. A further important factor is the formability of the coatings, that is to say their ability to withstand even greater transforming stresses, as they occur for example in the case of deep-drawing, without serious damage. None of these demands can be met to the same degree with conventional pure-galvanized products. Rather, conventionally coated sheet steel usually has particularly good characteristics as regards a certain requirement feature, while shortcomings must be accepted as regards other requirement features.
  • hot-dip galvanized sheet steel is characterized by high corrosion resistance in both the unpainted as well as in the painted state.
  • electro-galvanized sheet steel in comparison to hot-dip galvanized sheet steel, generally has a further improved surface quality and equally improved bonderizing-ability in preparation for paint finishing, it must be considered that the production of electro-galvanized sheet steel is more cost-intensive than hot-dip galvanizing due to higher energy consumption and the waste disposal requirements, which the wet chemical process entails.
  • An improvement in the performance characteristics of galvanized sheet steel can be obtained by applying a second layer, which is based on pure magnesium or a magnesium alloy, to the first protective layer formed by galvanizing.
  • a characteristic combination is achieved by application of this second magnesium-containing layer, wherein the characteristics of the first zinc-containing layer and the second magnesium-based layer are optimally enhanced.
  • the coating process is preferably carried out in such a way that breakdown of the layers is avoided. For this reason a diffusion or convection layer is formed between the zinc-containing and the magnesium-based layer, which ensures the magnesium-containing layer adheres firmly to the zinc layer.
  • a process, which permits a second layer to be applied to a sheet steel previously coated with a corrosion-protective coating is for example disclosed by the German Patent DE 195 27 515 C1 or the corresponding European Patent EP 0 756 022 B1.
  • the corrosion-resistant sheet steel manufactured by this process has enhanced forming and spot weld ability. For this reason the sheet steel provided with the zinc layer by hot-dip galvanizing or electro-galvanizing is firstly cleaned mechanically or chemically.
  • a suitable PVD (physical vapor deposition) process a top layer is then deposited on the previously zinc-coated steel substrate. Afterwards the strip coated in this way undergoes heat treatment, which is carried out for at least ten seconds within a temperature range of 300° C.-400° C. in an inert gas or oxygen-lean atmosphere. As the result of this heat treatment the metal of the coating diffuses into the first zinc-containing corrosion protective layer lying on the steel substrate.
  • the sheet steel in the course of the prior art process undergoes vacuum pre-treatment by ion bombardment or plasma treatment.
  • the galvanized steel substrate to be plated with the second layer of metal is fine-cleaned and conditioned by this pre-treatment so that the metal, deposited in the subsequent PVD process, is distributed widely and densely as a thin layer over the entire zinc coating.
  • Corresponding fine cleaning is necessary, according to the statements of the professional world, particularly if a magnesium-based coating is applied as an external layer to galvanized sheet steel in order to improve its bonding and painting performance.
  • the invention is directed to a process, which permits economical production of corrosion-resistant sheet steel with good performance characteristics for certain application purposes.
  • the invention includes a process for manufacturing a flat steel product made from corrosion-resistant steel, wherein a zinc-containing coating is applied by electro-galvanizing to a flat steel product, wherein the flat steel product if required is finally cleaned mechanically and/or chemically, wherein a second magnesium-based coating is applied directly to the finally cleaned zinc-containing coating by means of physical vapor deposition and wherein under normal atmosphere after application of the second coating, post heat treatment of the coated flat steel product is carried out for forming a diffusion or convection layer between the zinc-containing and the magnesium-based coating, at a heat treatment temperature of 320° C. to 335° C.
  • the steel substrate which is a flat product such as strip or sheet, made from low carbon steel, is firstly galvanized in a conventional way and then cleaned mechanically or chemically in a way, which is equally conventional. Mechanical or chemical cleaning in this case can take place alternatively or in combination, in order to ensure the surface of the zinc coating is as free as possible of grease and loosely adhering zinc material or other residues.
  • the galvanized flat steel product is completely clean at the end of this cleaning.
  • no further fine cleaning takes place before the magnesium-containing coating is deposited on the zinc-layer.
  • the flat steel product, plated with the zinc layer is fed in the purely mechanically or chemically final cleaned state into the physical vapor deposition chamber/module, where it is provided with the magnesium-containing external layer.
  • a commercially available structural adhesive suitable for bonding body components, is applied to the previously degreased surface to be examined.
  • the adhesive is applied in the form of two parallel adhesive beads with a height of 4-5 mm and a width of about 10 mm.
  • the geometry of the bead is then adjusted by means of a template. After the adhesive has hardened, possibly assisted by heat, the sheet steel is bent at an angle of approx. 100°. Due to tension between the adhesive and the coating surface, produced by bending, in this case the adhesive bead usually firstly breaks vertically to the specimen surface and then peels away along the specimen surface.
  • the applied coatings adhere so firmly amongst themselves and to the steel substrate, that in the adhesive bead bending test, the adhesive does not peel away in the coatings or between the coatings and the steel substrate, but at most between the adhesive and the coating or only in the adhesive itself.
  • the quality of an adhesive bond produced with a flat product according to the invention thus only depends on the bonding performance of the adhesive on the surface of the coating. Chipping or lifting of the plating system applied to the steel substrate is reliably prevented, despite fine cleaning being dispensed with according to the invention before vapor deposition of the magnesium layer, due to the heat treatment carried out according to the invention, following application of the magnesium coating.
  • stone chip resistance of flat steel products coated according to the invention also meets the requirements demanded in practice.
  • stone chip resistance which corresponds to that of sheet steel coated in the conventional way, can be ensured for sheet steel coated according to the invention, particularly while maintaining the temperature windows of the heat treatment, indicated below as preferable dependent on the type of zinc coating, despite reactive plasma cleaning being dispensed with before physical vapor deposition plating.
  • flat products manufactured according to the invention are particularly suitable for producing motor vehicle body components, which are formed by bonding individual components with one another.
  • a pre-condition for the good bonding performance achieved according to the invention is that the steel strip, vapor deposition plated according to the invention with the magnesium layer while dispensing with fine cleaning, undergoes heat treatment following vapor deposition, during which time it is held within the temperature range of 320° C. to 335° C., in order to form the diffusion or convection layer between the zinc coating and the magnesium layer.
  • the temperatures of the heat treatment are preferably purposefully selected with regard to as good as possible bonding performance of the finished flat steel product, so that in each case they lie in the upper spectrum of the optimum temperature range for the respective application.
  • the post heat treatment is preferably carried out so that the coated strip in each case is held for a duration of up to 15 seconds, in particular 5-10 seconds, in the range of the optimum heat treatment temperature specified by the invention, so that its surface when leaving the heat-treatment furnace is at the correct heat treatment temperature.
  • Normal measuring instruments such as temperature sensors placed on the strip surface can be used for measuring the respective treatment temperature; said measuring instruments are positioned for example in the discharge region of the furnace at a place, where on the one hand their signals and function are no longer disturbed by the operation of the furnace and on the other hand it is ensured that no substantial cooling of the strip takes place on leaving the furnace. Suitable positioning of the measuring instrument is particularly important if an induction furnace with correspondingly straying electromagnetic fields is used for post heat treatment.
  • the zinc is applied by electro-galvanizing, thus optimized characteristic combinations arise in the case of the flat products manufactured according to the invention, if the heat treatment temperature selected during the post heat treatment is 320° C. to 335° C. When this temperature is maintained, it is possible to ensure in an especially reliable way that no Fe—Zn rich phases are formed in the plating layer, as a result of which the bonding characteristics of sheet steel coated according to the invention might be impaired.
  • Any PVD process which is already proven in practice for this purpose, can be used for physical vapor deposition of the magnesium or the magnesium alloy on the galvanized steel substrate.
  • the working results achieved with the process according to the invention can be further improved if the sheet steel provided with the zinc-containing coating, in the course of its final cleaning, is chemically pre-conditioned by rinsing with a suitable pre-conditioning agent.
  • the galvanized steel strip can be rinsed with an alkaline solution in the course of chemical final cleaning.
  • the chemical final cleaning for example comprises pickling the steel substrate by rinsing with an acid, in particular hydrochloric acid.
  • an acid in particular hydrochloric acid.
  • rinsing with de-mineralized water can ensue in order to remove residues, still remaining on the zinc coated sheet after pickling, as completely as possible.
  • the steel substrate provided with the zinc-containing coating has a roughness Ra on its free surface of at least 1.4 ⁇ m, in particular 1.4-1.6 ⁇ m, when entering the physical vapor deposition, with roughness levels of more than 1.4 ⁇ m being advantageous.
  • the zinc-coated flat steel product has a nib rate RPC of at least 60 per cm when entering the physical vapor deposition.
  • the nib rate RPC and average roughness Ra are calculated by the contact stylus procedure, wherein when determining average roughness Ra the methods used are those indicated in DIN EN ISO 4287:1998 and when determining the nib rate RPC the methods are those indicated in the Iron and Steel Test Sheet September 1940.
  • the invention therefore makes available a process, which can be carried out particularly economically in a continuously running operation and provides a product that due to its surface quality and bonding performance is particularly suitable for producing components of motor vehicle bodies with application of joining techniques, such as inter-bonding.
  • FIG. 1 is an inverted FE-SEM photograph of a cross slice specimen of a steel strip coated in accordance with an embodiment of the invention and heat-treated at a temperature of 332° C.
  • a module for PVD plating and post heat treatment has been integrated into an existing conventional plant for continuous steel strip electro-galvanizing behind the conventional lines used for galvanizing and in front of the plant for final treatment of the finish-coated steel strip.
  • the steel strip firstly electro-galvanized in the known way in the conventional galvanizing lines of the plant, converted in this manner, after the galvanizing process and final cleaning likewise carried out in the conventional plant, is fed into the module for PVD plating and post heat treatment, where it is PVD plated and post heat treated. Afterwards the steel strip is returned to the conventional plant, in which for example it is phosphatized and oiled within the context of final treatment.
  • a nib rate value RPC of>60 per cm is preferred. Both values can also be positively influenced during the electro-galvanizing process. A further possibility of controlling these values consists of a cementation process as the ultimate stage of final cleaning.
  • the steel strip is firstly provided conventionally by way of electrolysis on either side with a zinc deposit of 3 ⁇ m in vertically arranged electrolysis cells by means of soluble anodes. After rinsing and drying the now galvanized steel strip, the galvanized substrate is thoroughly finally cleaned and prepared for application of the magnesium-containing coating.
  • the JET evaporator by suitable heat or mechanical means is able to supply evaporation rates of between 6 ⁇ m ⁇ meter per minute and 54 ⁇ m ⁇ meter per minute.
  • the steel strip, now also plated with a magnesium layer is then again conveyed to normal atmosphere.
  • Treatment by means of NIR emitters is used in this case for post heat treatment.
  • the heating-up time here depends on the strip speed, but can be varied by switching off individual modules.
  • the peak temperature of the heat treatment according to the invention is 327° C. ⁇ 7 K.
  • a special image-rendering pyrometric process is used, which makes it possible to accurately control the temperature heat treatment according to the invention locally and with respect to time. Different steel substrates and coating conditions in this case may cause deviating emissivities, so that extensive calibration is necessary.
  • the steel strip After a free strip run of 10 metres, the steel strip is cooled down by means of water. The residual heat in the strip is controlled so that the strip dries independently.
  • FIG. 1 as an inverted illustration shows an FE-SEM photograph of a cross slice specimen of steel strip coated according to the invention and heat-treated at a temperature of 332° C.
  • magnesium deposits of 1500 nm were achieved and thermally alloyed according to the invention.
  • the advantageous forming of the zinc-magnesium alloy coating was also demonstrated in these tests.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Coating With Molten Metal (AREA)
  • Physical Vapour Deposition (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Laminated Bodies (AREA)
US12/066,962 2005-09-23 2006-09-22 Method for producing a sheet steel product protected against corrosion Abandoned US20090139872A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005045780A DE102005045780A1 (de) 2005-09-23 2005-09-23 Verfahren zum Herstellen eines korrosionsgeschützten Stahlflachprodukts
DE102005045780.0 2005-09-23
PCT/EP2006/066632 WO2007033992A2 (de) 2005-09-23 2006-09-22 Verfahren zum herstellen eines korrosionsgeschützten stahlflachprodukts

Publications (1)

Publication Number Publication Date
US20090139872A1 true US20090139872A1 (en) 2009-06-04

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US12/066,962 Abandoned US20090139872A1 (en) 2005-09-23 2006-09-22 Method for producing a sheet steel product protected against corrosion

Country Status (12)

Country Link
US (1) US20090139872A1 (pt)
EP (2) EP1767670A1 (pt)
JP (1) JP2010504420A (pt)
KR (1) KR20080058369A (pt)
CN (1) CN101268216A (pt)
AU (1) AU2006293917A1 (pt)
BR (1) BRPI0616110A2 (pt)
CA (1) CA2622817A1 (pt)
DE (1) DE102005045780A1 (pt)
RU (1) RU2008115945A (pt)
WO (1) WO2007033992A2 (pt)
ZA (1) ZA200802606B (pt)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100294400A1 (en) * 2007-10-02 2010-11-25 Thyssenkrupp Steel Europe Ag Method for producing a steel component by hot forming and steel component produced by hot forming
US20120129001A1 (en) * 2009-05-25 2012-05-24 Thyssenkrupp Steel Europe Ag Method for the production of a flat steel product and flat steel product
US20130061986A1 (en) * 2008-02-25 2013-03-14 Arcelormittal Investigacion Method for coating a metal strip and equipment for implementing said method
EP2980261A4 (en) * 2013-03-28 2016-04-13 Jfe Steel Corp FALUTED AL-ZN PLATED STEEL SHEET AND MANUFACTURING METHOD THEREOF
CN106794671A (zh) * 2014-10-02 2017-05-31 蒂森克虏伯钢铁欧洲股份公司 多层扁钢产品及由其制造的部件

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100961371B1 (ko) * 2007-12-28 2010-06-07 주식회사 포스코 실러 접착성 및 내식성이 우수한 아연계 합금도금강판과 그제조방법
DE102008004728A1 (de) 2008-01-16 2009-07-23 Henkel Ag & Co. Kgaa Phosphatiertes Stahlblech sowie Verfahren zur Herstellung eines solchen Blechs
DE102009051673B3 (de) * 2009-11-03 2011-04-14 Voestalpine Stahl Gmbh Herstellung von Galvannealed-Blechen durch Wärmebehandlung elektrolytisch veredelter Bleche
DE102012023430A1 (de) * 2012-11-30 2014-06-05 Bilstein Gmbh & Co. Kg Haubenglühofen sowie Verfahren zum Betreiben eines solchen
CN103264546B (zh) * 2013-05-30 2015-01-07 海门市森达装饰材料有限公司 一种不锈钢复合板及其制造方法
DE102015211853B3 (de) 2015-06-25 2016-06-16 Thyssenkrupp Ag Verfahren zur Beschichtung einer Oberfläche eines Metallbandes sowie Metallbandbeschichtungsvorrichtung
KR102010769B1 (ko) * 2017-03-03 2019-08-14 한국해양대학교 산학협력단 아연도금층에 형성되는 주석/마그네슘 박막 및 그 제조방법
KR102178717B1 (ko) * 2018-12-19 2020-11-27 주식회사 포스코 도금 밀착성 및 내식성이 우수한 Zn-Mg 합금 도금 강재 및 그 제조방법
DE102022133485A1 (de) 2022-12-15 2024-06-20 Thyssenkrupp Steel Europe Ag Stahlblech mit optimiertem Metallüberzug

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Publication number Priority date Publication date Assignee Title
US20060177596A1 (en) * 2003-09-24 2006-08-10 Usinor S.A. Method and apparatus for the production of metal coated steel products

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DE19527515C1 (de) * 1995-07-27 1996-11-28 Fraunhofer Ges Forschung Verfahren zur Herstellung von korrosionsgeschütztem Stahlblech
DE10039375A1 (de) * 2000-08-11 2002-03-28 Fraunhofer Ges Forschung Korrosionsgeschütztes Stahlblech und Verfahren zu seiner Herstellung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060177596A1 (en) * 2003-09-24 2006-08-10 Usinor S.A. Method and apparatus for the production of metal coated steel products

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100294400A1 (en) * 2007-10-02 2010-11-25 Thyssenkrupp Steel Europe Ag Method for producing a steel component by hot forming and steel component produced by hot forming
US20130061986A1 (en) * 2008-02-25 2013-03-14 Arcelormittal Investigacion Method for coating a metal strip and equipment for implementing said method
US10072327B2 (en) * 2008-02-25 2018-09-11 Arcelormittal Investigacion Desarrollo Sl Method for coating a metal strip and equipment for implementing said method
US11313023B2 (en) 2008-02-25 2022-04-26 Arcelormittal Equipment for coating a metal strip
US20120129001A1 (en) * 2009-05-25 2012-05-24 Thyssenkrupp Steel Europe Ag Method for the production of a flat steel product and flat steel product
US9040167B2 (en) * 2009-05-25 2015-05-26 Thyssenkrupp Steel Europe Ag Method for the production of a flat steel product and flat steel product
EP2980261A4 (en) * 2013-03-28 2016-04-13 Jfe Steel Corp FALUTED AL-ZN PLATED STEEL SHEET AND MANUFACTURING METHOD THEREOF
US9758853B2 (en) 2013-03-28 2017-09-12 Jfe Steel Corporation Hot-dip Al—Zn alloy coated steel sheet and method for producing same
CN106794671A (zh) * 2014-10-02 2017-05-31 蒂森克虏伯钢铁欧洲股份公司 多层扁钢产品及由其制造的部件

Also Published As

Publication number Publication date
CA2622817A1 (en) 2007-03-29
JP2010504420A (ja) 2010-02-12
KR20080058369A (ko) 2008-06-25
RU2008115945A (ru) 2009-10-27
AU2006293917A1 (en) 2007-03-29
ZA200802606B (en) 2009-06-24
EP1767670A1 (de) 2007-03-28
WO2007033992A2 (de) 2007-03-29
WO2007033992A3 (de) 2007-07-26
EP1934386A2 (de) 2008-06-25
DE102005045780A1 (de) 2007-04-12
CN101268216A (zh) 2008-09-17
BRPI0616110A2 (pt) 2011-06-07

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