EP2513346A2 - 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 - Google Patents

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

Info

Publication number
EP2513346A2
EP2513346A2 EP10787425A EP10787425A EP2513346A2 EP 2513346 A2 EP2513346 A2 EP 2513346A2 EP 10787425 A EP10787425 A EP 10787425A EP 10787425 A EP10787425 A EP 10787425A EP 2513346 A2 EP2513346 A2 EP 2513346A2
Authority
EP
European Patent Office
Prior art keywords
steel product
flat steel
flat
annealing
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10787425A
Other languages
German (de)
English (en)
Other versions
EP2513346B1 (fr
Inventor
Wilhelm Warnecke
Manfred Meurer
Jens Kondratiuk
Marc Blumenau
Martin Norden
Thiemo Wuttke
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 Europe AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44121379&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2513346(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ThyssenKrupp Steel Europe AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP2513346A2 publication Critical patent/EP2513346A2/fr
Application granted granted Critical
Publication of EP2513346B1 publication Critical patent/EP2513346B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C21D1/26—Methods of annealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0257—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment with diffusion of elements, e.g. decarburising, nitriding
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese

Definitions

  • the invention relates to a process for producing a readily deformable, a C content of 0.1 to 0.4 wt .-% having flat steel product, wherein the
  • the invention relates to a correspondingly produced flat steel product and method for
  • Corrosion protection coating provided steel sheet for the hot forming and a possibly subsequently or in combination with the hot working performed hardening are heated to a temperature which is above the melting temperature of the metal of the protective coating, there is the danger of so-called
  • JP 60-159120 A It is generally known from JP 60-159120 A that the bending properties of a steel sheet can be improved by a decarburization treatment which produces a near-surface, 20-100 ⁇ m thick surface layer with a reduced C content in relation to the core region of the steel sheet.
  • this measure is not associated with this prior art Nor does it concern higher or high strength steels having C-contents of at least 0.1% by weight.
  • decarburization is carried out according to the Boudouard equilibrium reactions according to the following
  • decarburization can improve certain properties of a steel product.
  • GB 1 189 464 proposes the "open-coil" method.
  • a hard-rolled, cold-rolled strip is wound loosely into a coil such that a free space exists between the individual winding layers of the coil. That at the subsequent
  • Annealing treatment in a hood furnace flowing through the free spaces annealing gas then sweeps over the entire
  • the steel strip can be provided with a hot dip coating to improve its corrosion resistance.
  • the steel sheet obtained in this way has a particularly good deformability. However, its strength values do not match those
  • Automotive bodies should be shaped.
  • the steel strip treated accordingly has an increased deformability compared to the base material, which reduces the risk of brittle fracture under high external load.
  • DE 102007061489 A1 has proposed a process in which a ductile boundary layer which is advantageous for the forming is produced on a steel sheet by carrying out a selective oxidation of the solidifying alloying elements. In the process, every decarburization is deliberately counteracted.
  • the object of the invention was to provide a method which makes it possible in an economical manner to produce a readily deformable, high-strength or very high-strength steel flat product.
  • Components are given from such a flat steel product.
  • the above-stated object has been achieved according to the invention in that, in the production of a flat steel product, the steps specified in claim 1 are completed.
  • the process according to the invention for producing a readily deformable flat steel product which has a C content of 0.1-0.4% by weight, in particular less than 0.4% by weight, is based on the idea of the relevant flat steel product in a continuous furnace one
  • the annealing treatment according to the invention is carried out under an annealing atmosphere, the 0.1 - 25 vol .-% H 2 , H 2 0 and the balance N 2 and
  • the dew point of the annealing atmosphere is in the range of -20 ° C and +60 ° C. At the same time is in the
  • the flat steel product is further inventively in the course of annealing to a 600 - 1100 ° C.
  • Wt .-% in particular up to 0.38 wt .-%, contains carbon, adjust by an annealing treatment, which leads to a Randentkohlung of the steel material. This edge decarburization causes a ductilization of the
  • the invention is thus based on the idea of a
  • Hot-forming steel flat products i.
  • Steel surface can run off for a subsequent application of a corrosion protection layer, but has a decoupled reaction mechanism.
  • the inventive method is characterized in particular by the fact that it can be carried out in a particularly economical manner using a continuous furnace. This makes it possible to use the method according to the invention in
  • Anticorrosive coating are hot-dip coated.
  • the invention makes use of the knowledge that the risk of liquid metal embrittlement can be minimized by the fact that it can be controlled by a specific method
  • Flat steel product of the susceptible to liquid metal embrittlement temperature range can be shifted so that it does not coincide with the typical for the hot forming temperature interval.
  • the annealing treatment in this case may include edge decarburization, surface conditioning and recrystallization of the base material and then the
  • Procedure can be performed in-line following the annealing treatment.
  • produced flat steel product can on the steel substrate known coating systems which are based on Zn, Al, Zn-Al, Zn-Mg, Zn-Ni, Al-Mg, Al-Si or Zn-Al-Mg.
  • Hot dip finishing can be a steel strip which has been provided in accordance with the invention in a continuous annealing with a ductile decarburized boundary layer,
  • a metallic, a metallic ⁇ inorganic or a metallic-organic coating by electrolytically, for example, with a Zn, a ZnNi or a ZnFe coating, PVD or CVD deposition or by means of another metal-organic or metal inorganic coating method is coated.
  • the invention thus provides that the flat steel product is hot-dip coated in a work step carried out continuously following the annealing treatment. It can the
  • oxidation of the surface of the flat steel product can be carried out before the fire coating.
  • the annealing treatment according to the invention can be carried out in a conventional manner
  • a method according to the invention is produced
  • Core layer of the flat steel product has increased ductility.
  • the thickness of the ductile layer can be determined in a customary manner in accordance with DIN EN ISO 3887
  • Total carbonation depth The distance from the surface to the point where the content of carbon corresponds to that of the unaffected core region. In this way, in the near-surface region, a hardness in the decarburized surface layer region which is not higher than 75% of the hardness of the core region, i.
  • Flat steel product is characterized at least near its free surface typically by a ferritic microstructure. This is true for a multiphase
  • decarburized edge layer sets a ferritic near-surface microstructure, just as for a single-phase, typically ferritic steel, in which the decarburization invention results in a ductilization of the near-surface ferrite.
  • a flat steel product produced according to the invention is suitable in the same way for cold and hot forming, wherein its particular advantages in particular in the hot forming of provided with a metallic protective layer, in particular a galvanized steel sheets or bands show.
  • Cold forming steels typically have a tensile strength of 500-1500 MPa.
  • Hot working can be inventively steels
  • the flat steel product according to the invention may first be heated to a heating temperature above its Acl temperature and then hot formed into the component.
  • the steel flat product according to the invention can also be heated without problems to a heating temperature which is at least equal to the Ac3 temperature of the flat steel product. Even with such a high
  • Heating temperature is minimized in a steel flat product according to the invention, the risk of embrittlement even if the flat steel product is provided with a metallic coating whose
  • Melting temperature is less than or equal to
  • Heating temperature is.
  • the ductility of the surface layer achieved by the surface layer decarburization according to the invention prevents cracking and thus ensures that no molten metal of the coating in the
  • Flat steel products are particularly advantageous for hot forming. This is achieved in that, according to the invention, a decarburization is induced by a targeted annealing gas-metal reaction in a continuous furnace, through which a ductile,
  • the invention is based on
  • Figure 1 is a vertical section of a surface according to the invention decarburized steel sample.
  • FIG. 2 shows a vertical section of a conventionally annealed comparative sample
  • hard-cold-rolled strip samples are in each case a multi-phase steel "MP” and a steel used commonly for hot forming “WU” has been produced.
  • the compositions of steels MP and WU are given in Table 1.
  • Hot-dip galvanizing is performed.
  • FIG. 1 shows the micrograph of the sample produced from the steel MP and annealed according to the invention. It can be clearly seen that, as a consequence of the procedure according to the invention, a decarburised, near-surface microstructure region (boundary layer "R")
  • Discharge Optical Emission Spectrometre is a standard method for the rapid detection of a concentration profile of coatings. It is
  • Carbon distribution of the conventionally treated sample and the solid line represents the carbon distribution of the invention treated sample.
  • Fig. 3 clearly shows that the sample treated according to the invention has a pronounced decarburized edge layer R whose thickness is about 40 ⁇ .
  • a surface layer is not present in the conventionally treated sample.
  • Edge region R has a microhardness of 163 HV and the non-decarburized core region K has a hardness of 255 HV.
  • The% ratio Hv R / Hv K of hardness Hv R of the decarburized edge region R to hardness Hv K of the core region K was thus 64%, which was well below that according to the invention for this ratio predetermined value of 75%.
  • the sample is symbolized by the black and the bending angle Bw of the conventionally generated sample by the white bar.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Coating With Molten Metal (AREA)

Abstract

L'invention concerne un procédé permettant d'obtenir de manière économique un produit en acier plat facilement formable présentant une teneur en C allant de 0,1 à 0,4 % en poids. Selon l'invention, on effectue pour cela un traitement de recuit sous une atmosphère de recuit qui contient 0,1 à 25 % en volume de H2, de l'H2O et comme reste du N2, ainsi que des impuretés techniquement inévitables et qui présente un point de rosée compris entre -20 °C et +60 °C, le rapport H2O/H2 de l'atmosphère de recuit étant tout au plus égal à 0,957. Au cours du traitement de recuit, le produit en acier plat est chauffé à une température de maintien allant de 600 à 1100 °C, à laquelle il est maintenu pendant un temps de maintien de 10 à 360 s, de telle sorte que le produit en acier plat obtenu après le traitement de recuit présente une couche de bordure ductile (R) d'une épaisseur allant de 10 à 200 µm attenante à sa surface libre, avec une ductilité qui est plus grande que celle de la couche de cœur (K) intérieure du produit en acier plat, recouverte par la couche de bordure. L'invention concerne également un produit en acier plat de constitution correspondante, particulièrement approprié pour le formage à chaud ou à froid, et des procédés pour la fabrication de pièces à partir d'un tel produit en acier plat.
EP10787425.7A 2009-12-10 2010-12-03 Procédé de fabrication d'un produit en acier plat facilement formable Active EP2513346B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009044861A DE102009044861B3 (de) 2009-12-10 2009-12-10 Verfahren zum Herstellen eines gut umformbaren Stahlflachprodukts, Stahlflachprodukt und Verfahren zur Herstellung eines Bauteils aus einem solchen Stahlflachprodukt
PCT/EP2010/068831 WO2011069906A2 (fr) 2009-12-10 2010-12-03 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

Publications (2)

Publication Number Publication Date
EP2513346A2 true EP2513346A2 (fr) 2012-10-24
EP2513346B1 EP2513346B1 (fr) 2017-06-07

Family

ID=44121379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10787425.7A Active EP2513346B1 (fr) 2009-12-10 2010-12-03 Procédé de fabrication d'un produit en acier plat facilement formable

Country Status (6)

Country Link
US (1) US9234253B2 (fr)
EP (1) EP2513346B1 (fr)
JP (2) JP2013513725A (fr)
CN (1) CN102652177B (fr)
DE (1) DE102009044861B3 (fr)
WO (1) WO2011069906A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2513346B1 (fr) 2009-12-10 2017-06-07 ThyssenKrupp Steel Europe AG Procédé de fabrication d'un produit en acier plat facilement formable
EP3751016A4 (fr) * 2018-03-02 2021-09-01 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Tôle d'acier plaquée zinc pour l'estampage à chaud et son procédé de production

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP5626324B2 (ja) * 2012-12-11 2014-11-19 Ｊｆｅスチール株式会社 溶融亜鉛めっき鋼板の製造方法
ES2891582T3 (es) * 2013-04-10 2022-01-28 Tata Steel Ijmuiden Bv Producto conformado mediante conformado en caliente de chapa de acero con revestimiento metálico, método para conformar el producto y fleje de acero
DE102014109943B3 (de) 2014-07-16 2015-11-05 Thyssenkrupp Ag Stahlprodukt mit einer Korrosionsschutzbeschichtung aus einer Aluminiumlegierung sowie Verfahren zu dessen Herstellung
DE102016117474A1 (de) * 2016-09-16 2018-03-22 Benteler Automobiltechnik Gmbh Karosseriebauteil mit reduzierter Rissneigung und Verfahren zur Herstellung
KR102165223B1 (ko) 2018-12-19 2020-10-13 주식회사 포스코 열간성형 후 충격특성이 우수한 열간성형용 도금강판, 열간성형 부재 및 이들의 제조방법
JP2022535056A (ja) * 2019-06-03 2022-08-04 ティッセンクルップ スチール ヨーロッパ アクチェンゲゼルシャフト 腐食保護コーティングを施された平鋼製品からシート金属コンポーネントを製造するための方法

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1189464A (en) * 1967-11-06 1970-04-29 Richard Thomas & Baldwins Ltd Production of Deep-Drawing Steel
DE2105218B2 (de) * 1970-02-04 1974-09-26 Nippon Kokan K.K., Tokio Herstellung von feuerverzinktem Tiefziehstahl
US3958918A (en) 1975-02-10 1976-05-25 United States Steel Corporation Method for elimination of furnace roll pickup marks on silicon containing sheet steel
JPS6077956A (ja) * 1983-10-05 1985-05-02 Kawasaki Steel Corp 曲げ特性および伸びフランジ成形性に優れた、強度レベル５０ｋｇｆ／ｍｍ２以上の高張力冷延鋼板の製造方法
JPS60159120A (ja) * 1984-01-28 1985-08-20 Nisshin Steel Co Ltd 曲げ加工性の優れた低降伏比複合組織鋼板およびその製造法
JPH07150252A (ja) 1993-11-25 1995-06-13 Sumitomo Metal Ind Ltd 連続焼鈍によるほうろう用冷延鋼板の製造方法
JPH10130782A (ja) 1996-11-01 1998-05-19 Nippon Steel Corp 超高強度冷延鋼板およびその製造方法
JP3769914B2 (ja) 1998-01-06 2006-04-26 Ｊｆｅスチール株式会社 耐時効性と焼き付け硬化性に優れた缶用鋼板
JP3956550B2 (ja) * 1999-02-02 2007-08-08 Ｊｆｅスチール株式会社 強度延性バランスに優れた高強度溶融亜鉛メッキ鋼板の製造方法
JP3752898B2 (ja) 1999-07-15 2006-03-08 Ｊｆｅスチール株式会社 高強度溶融亜鉛めっき鋼板および高強度合金化溶融亜鉛めっき鋼板の製造方法
JP4552310B2 (ja) * 1999-11-08 2010-09-29 Ｊｆｅスチール株式会社 強度−延性バランスとめっき密着性に優れた溶融亜鉛めっき鋼板およびその製造方法
KR20050118306A (ko) 2003-04-10 2005-12-16 신닛뽄세이테쯔 카부시키카이샤 고강도 용융 아연 도금 강판 및 그 제조 방법
JP4445339B2 (ja) 2004-01-08 2010-04-07 新日本製鐵株式会社 高ヤング率鋼板およびその製造方法
JP4254663B2 (ja) 2004-09-02 2009-04-15 住友金属工業株式会社 高強度薄鋼板およびその製造方法
FR2876711B1 (fr) * 2004-10-20 2006-12-08 Usinor Sa Procede de revetement au trempe a chaud dans un bain de zinc des bandes en acier fer-carbone-manganese
CA2640646C (fr) * 2006-01-30 2011-07-26 Nippon Steel Corporation Tole d'acier de haute resistance galvanisee a chaud et tole d'acier de haute resistance galvanisee et recuite a chaud, methodes et appareilspou r leur production
DE102006039307B3 (de) * 2006-08-22 2008-02-21 Thyssenkrupp Steel Ag Verfahren zum Beschichten eines 6-30 Gew.% Mn enthaltenden warm- oder kaltgewalzten Stahlbands mit einer metallischen Schutzschicht
DE102007039013B3 (de) * 2007-08-17 2008-08-14 Thyssenkrupp Steel Ag Verfahren zum Herstellen eines oberflächenentkohlten Warmbands
DE102007061489A1 (de) 2007-12-20 2009-06-25 Voestalpine Stahl Gmbh Verfahren zum Herstellen von gehärteten Bauteilen aus härtbarem Stahl und härtbares Stahlband hierfür
JP5407168B2 (ja) 2008-04-10 2014-02-05 新日鐵住金株式会社 高強度鋼板の製造方法および高強度電気亜鉛系めっき鋼板の製造方法
JP5114747B2 (ja) 2008-04-28 2013-01-09 新日鐵住金株式会社 穴拡げ性と延性のバランスが極めて良好な高強度鋼板の製造方法と亜鉛めっき鋼板の製造方法
US20100147391A1 (en) 2008-12-12 2010-06-17 Chevron U.S.A. Inc Apparatus and method for controlling a fluid flowing through a pipeline
DE102009018577B3 (de) 2009-04-23 2010-07-29 Thyssenkrupp Steel Europe Ag Verfahren zum Schmelztauchbeschichten eines 2-35 Gew.-% Mn enthaltenden Stahlflachprodukts und Stahlflachprodukt
US9109275B2 (en) 2009-08-31 2015-08-18 Nippon Steel & Sumitomo Metal Corporation High-strength galvanized steel sheet and 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
DE102010017354A1 (de) * 2010-06-14 2011-12-15 Thyssenkrupp Steel Europe Ag Verfahren zum Herstellen eines warmgeformten und gehärteten, mit einer metallischen Korrosionsschutzbeschichtung überzogenen Stahlbauteils aus einem Stahlflachprodukt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2513346B1 (fr) 2009-12-10 2017-06-07 ThyssenKrupp Steel Europe AG Procédé de fabrication d'un produit en acier plat facilement formable
EP3751016A4 (fr) * 2018-03-02 2021-09-01 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Tôle d'acier plaquée zinc pour l'estampage à chaud et son procédé de production

Also Published As

Publication number Publication date
CN102652177B (zh) 2015-01-21
CN102652177A (zh) 2012-08-29
US9234253B2 (en) 2016-01-12
JP6298439B2 (ja) 2018-03-20
JP2016117948A (ja) 2016-06-30
WO2011069906A3 (fr) 2011-08-18
WO2011069906A2 (fr) 2011-06-16
JP2013513725A (ja) 2013-04-22
US20130180305A1 (en) 2013-07-18
EP2513346B1 (fr) 2017-06-07
DE102009044861B3 (de) 2011-06-22

Similar Documents

Publication Publication Date Title
EP2513346B1 (fr) Procédé de fabrication d'un produit en acier plat facilement formable
EP2848709B1 (fr) Procédé de fabrication d'un composant en acier revêtu d'une coiffe métallique protégeant de la corrosion et composant en acier
EP2656187B1 (fr) Procédé de fabrication de composants durcis
EP2432910B2 (fr) Procédé de revêtement par immersion à chaud d'un produit plat en acier contenant de 2 à 35 % en masse de mn, ainsi que produit plat en acier
EP2045360B1 (fr) Procédé de fabrication d'un composant en acier par façonnage à chaud et composant en acier fabriqué par façonnage à chaud
EP2496721B1 (fr) Réalisation de tôles recuites après galvanisation par traitement thermique de tôles revêtue par voie électrolytique
DE102012101018B3 (de) Verfahren zum Schmelztauchbeschichten eines Stahlflachprodukts
WO2009021898A1 (fr) Acier biphasé, produit plat constitué d'un tel acier biphasé et procédé de fabrication d'un produit plat
EP3250727B2 (fr) Procédé de fabrication d'une pièce constituée de tôle d'acier revêtue à base d'aluminium durcie par moulage par compression
EP2220259A1 (fr) Procédé servant à fabriquer des pièces en acier revêtues et trempées et bande d'acier correspondante revêtue et pouvant être trempée
DE102010017354A1 (de) Verfahren zum Herstellen eines warmgeformten und gehärteten, mit einer metallischen Korrosionsschutzbeschichtung überzogenen Stahlbauteils aus einem Stahlflachprodukt
DE102015118869A1 (de) Verfahren zum Herstellen einer Korrosionsschutzbeschichtung für härtbare Stahlbleche und Korrosionsschutzschicht für härtbare Stahlbleche
WO2016078642A1 (fr) Acier multiphasé à haute résistance durcissant à l'air qui présente d'excellentes propriétés de traitement et procédé de fabrication d'une bande à partir de cet acier
WO2019121793A1 (fr) Produit en acier plat laminé à froid présentant une couche métallique de protection contre la corrosion et procédé pour la fabrication d'un tel acier
EP3221483A1 (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
DE102010056265B3 (de) Verfahren zum Erzeugen gehärteter Bauteile
WO2019068560A1 (fr) Acier multiphase à haute résistance et procédé de fabrication d'une bande d'acier composée de cet acier multiphase
WO2016026885A1 (fr) Tôle en acier traitée en surface et procédé de production de celle-ci
EP3658307B9 (fr) Pièce en tôle fabriquée par formage à chaud d'un produit plat en acier et procédé pour sa fabrication
EP2959025B1 (fr) Procédé de fabrication d'une tôle d'acier résistante à la corrosion
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
EP3894603B1 (fr) Procédé pour fabriquer un produit plat en acier revêtu, procédé pour fabriquer une pièce d'acier et produit plat en acier revêtu
EP4247992A1 (fr) Matériau d'acier et son procédé de production

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: 20120608

AK Designated contracting states

Kind code of ref document: A2

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

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

Effective date: 20160614

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502010013715

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: C21D0001760000

Ipc: B21D0031000000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 1/76 20060101ALI20161205BHEP

Ipc: C22C 38/04 20060101ALI20161205BHEP

Ipc: C21D 9/46 20060101ALI20161205BHEP

Ipc: C22C 38/02 20060101ALI20161205BHEP

Ipc: C22C 38/38 20060101ALI20161205BHEP

Ipc: C22C 38/28 20060101ALI20161205BHEP

Ipc: C21D 8/02 20060101ALI20161205BHEP

Ipc: B21D 31/00 20060101AFI20161205BHEP

Ipc: C22C 38/06 20060101ALI20161205BHEP

Ipc: C21D 1/26 20060101ALI20161205BHEP

INTG Intention to grant announced

Effective date: 20161223

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WARNECKE, WILHELM

Inventor name: NORDEN, MARTIN

Inventor name: BLUMENAU, MARC

Inventor name: KONDRATIUK, JENS

Inventor name: WUTTKE, THIEMO

Inventor name: MEURER, MANFRED

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 898831

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170615

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

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: 502010013715

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: ES

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

Effective date: 20170607

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: 20170907

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: 20170607

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: 20170908

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: 20170607

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: 20170607

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

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: 20170607

Ref country code: RS

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

Effective date: 20170607

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: 20170907

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

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

Ref country code: 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: 20170607

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: 20170607

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: 20170607

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: 20170607

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

Ref country code: PL

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

Effective date: 20170607

Ref country code: SM

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

Effective date: 20170607

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: 20171007

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502010013715

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

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

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: TATA STEEL IJMUIDEN BV

Effective date: 20180306

Opponent name: ARCELORMITTAL

Effective date: 20180305

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: 20170607

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

Ref country code: SI

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

Effective date: 20170607

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20171203

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: LU

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

Effective date: 20171203

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: 20170607

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171231

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

Ref country code: IE

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

Effective date: 20171203

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: 20171231

Ref country code: CH

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

Effective date: 20171231

Ref country code: GB

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

Effective date: 20171203

Ref country code: BE

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

Effective date: 20171231

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

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; INVALID AB INITIO

Effective date: 20101203

Ref country code: MC

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

Effective date: 20170607

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

Free format text: ORIGINAL CODE: 0009299OPPO

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

R26 Opposition filed (corrected)

Opponent name: TATA STEEL IJMUIDEN BV

Effective date: 20180306

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

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

Ref country code: CY

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

Effective date: 20170607

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

Ref country code: MK

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

Effective date: 20170607

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: 20170607

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

Ref country code: AL

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

Effective date: 20170607

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

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

Ref country code: TR

Payment date: 20201127

Year of fee payment: 11

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

Ref country code: IT

Payment date: 20201224

Year of fee payment: 11

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

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

Ref country code: IT

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

Effective date: 20211203

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

Effective date: 20230526

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

Ref country code: SE

Payment date: 20231220

Year of fee payment: 14

Ref country code: NL

Payment date: 20231220

Year of fee payment: 14

Ref country code: FR

Payment date: 20231221

Year of fee payment: 14

Ref country code: DE

Payment date: 20231214

Year of fee payment: 14

Ref country code: AT

Payment date: 20231221

Year of fee payment: 14

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

Ref country code: TR

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

Effective date: 20211203