EP1389639A3 - Tôle d'acier présentant une excellente aptitude au pliage - Google Patents

Tôle d'acier présentant une excellente aptitude au pliage Download PDF

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Publication number
EP1389639A3
EP1389639A3 EP03254606A EP03254606A EP1389639A3 EP 1389639 A3 EP1389639 A3 EP 1389639A3 EP 03254606 A EP03254606 A EP 03254606A EP 03254606 A EP03254606 A EP 03254606A EP 1389639 A3 EP1389639 A3 EP 1389639A3
Authority
EP
European Patent Office
Prior art keywords
steel sheet
bendability
excellent bendability
ferrite
area
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
EP03254606A
Other languages
German (de)
English (en)
Other versions
EP1389639A2 (fr
EP1389639B1 (fr
Inventor
Shushi c/o Kobe Steel Ltd. Ikeda
Koichi c/o Kobe Steel Ltd. Makii
Hiroshi c/o Kobe Steel Ltd Akamizu
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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=30768001&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1389639(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of EP1389639A2 publication Critical patent/EP1389639A2/fr
Publication of EP1389639A3 publication Critical patent/EP1389639A3/fr
Application granted granted Critical
Publication of EP1389639B1 publication Critical patent/EP1389639B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C22C38/04—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
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/003—Cementite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite

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)
EP03254606A 2002-07-29 2003-07-24 Tôle d'acier présentant une excellente aptitude au pliage Expired - Fee Related EP1389639B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002219662A JP3828466B2 (ja) 2002-07-29 2002-07-29 曲げ特性に優れた鋼板
JP2002219662 2002-07-29

Publications (3)

Publication Number Publication Date
EP1389639A2 EP1389639A2 (fr) 2004-02-18
EP1389639A3 true EP1389639A3 (fr) 2005-06-08
EP1389639B1 EP1389639B1 (fr) 2011-01-05

Family

ID=30768001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03254606A Expired - Fee Related EP1389639B1 (fr) 2002-07-29 2003-07-24 Tôle d'acier présentant une excellente aptitude au pliage

Country Status (3)

Country Link
US (1) US20040159373A1 (fr)
EP (1) EP1389639B1 (fr)
JP (1) JP3828466B2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1431406A1 (fr) * 2002-12-20 2004-06-23 Sidmar N.V. Composition d'acier pour la production de produits laminés à froid en acier à plusieurs phases
US7314532B2 (en) * 2003-03-26 2008-01-01 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) High-strength forged parts having high reduction of area and method for producing same
ATE526424T1 (de) * 2003-08-29 2011-10-15 Kobe Steel Ltd Hohes stahlblech der dehnfestigkeit ausgezeichnet für die verarbeitung und proze für die produktion desselben
EP1553202A1 (fr) * 2004-01-09 2005-07-13 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Acier à très haute résistance mécanique ayant une excellente résistance à la fragilisation par l'hydrogène et son procédé de production
US7591977B2 (en) * 2004-01-28 2009-09-22 Kabuhsiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) High strength and low yield ratio cold rolled steel sheet and method of manufacturing the same
US20050247378A1 (en) * 2004-04-22 2005-11-10 Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.) High-strength cold rolled steel sheet having excellent formability, and plated steel sheet
JP4288364B2 (ja) * 2004-12-21 2009-07-01 株式会社神戸製鋼所 伸びおよび伸びフランジ性に優れる複合組織冷延鋼板
JP4716359B2 (ja) * 2005-03-30 2011-07-06 株式会社神戸製鋼所 均一伸びに優れた高強度冷延鋼板およびその製造方法
JP4716358B2 (ja) * 2005-03-30 2011-07-06 株式会社神戸製鋼所 強度と加工性のバランスに優れた高強度冷延鋼板およびめっき鋼板
EP1767659A1 (fr) * 2005-09-21 2007-03-28 ARCELOR France Procédé de fabrication d'une pièce en acier de microstructure multi-phasée
KR100985298B1 (ko) * 2008-05-27 2010-10-04 주식회사 포스코 리징 저항성이 우수한 저비중 고강도 열연 강판, 냉연강판, 아연도금 강판 및 이들의 제조방법
JP5867436B2 (ja) * 2013-03-28 2016-02-24 Ｊｆｅスチール株式会社 高強度合金化溶融亜鉛めっき鋼板およびその製造方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0586704A1 (fr) * 1991-05-30 1994-03-16 Nippon Steel Corporation Tole d'acier laminee a chaud a rapport d'elasticite eleve et a haute resistance presentant une plasticite ou une plasticite/soudabilite par points excellente, et son procede de production
EP0707087A1 (fr) * 1994-04-26 1996-04-17 Nippon Steel Corporation Feuille en acier haute resistance convenant a l'emboutissage profond et son procede de fabrication
JPH1143740A (ja) * 1997-05-29 1999-02-16 Kawasaki Steel Corp 耐衝撃特性に優れた高強度高加工性熱延鋼板
EP0922782A1 (fr) * 1997-06-16 1999-06-16 Kawasaki Steel Corporation Tole d'acier laminee a froid a resistance et aptitude au fa onnage elevees presentant une excellente resistance aux chocs
JPH11189839A (ja) * 1997-12-26 1999-07-13 Nippon Steel Corp 高い動的変形抵抗を有する高強度鋼板とその製造方法
JPH11323489A (ja) * 1998-05-13 1999-11-26 Nippon Steel Corp 形状凍結性に優れた良加工性高強度冷延鋼板およびその製造方法
EP0974677A1 (fr) * 1997-01-29 2000-01-26 Nippon Steel Corporation Tole d'acier a haute resistance mecanique, tres resistante a la deformation dynamique et d'une excellente ouvrabilite, et son procede de fabrication
JP2000256789A (ja) * 1999-03-10 2000-09-19 Kobe Steel Ltd 加工性および点溶接性に優れた冷延鋼板およびプレめっき合金化溶融亜鉛めっき鋼板並びにそれらの製造方法
JP2001152287A (ja) * 1999-11-26 2001-06-05 Kobe Steel Ltd スポット溶接性に優れた高強度冷延鋼板
EP1201780A1 (fr) * 2000-04-21 2002-05-02 Nippon Steel Corporation Plaque d'acier presentant une excellente aptitude a l'ebarbage et une resistance elevee a la fatigue, et son procede de production

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3172505B2 (ja) * 1998-03-12 2001-06-04 株式会社神戸製鋼所 成形性に優れた高強度熱延鋼板
JP2000313936A (ja) * 1999-04-27 2000-11-14 Kobe Steel Ltd 延性に優れた合金化溶融亜鉛めっき鋼板およびその製造方法
FR2801061B1 (fr) * 1999-11-12 2001-12-14 Lorraine Laminage Procede de realisation d'une bande de tole laminere a chaud a tres haute resistance, utilisable pour la mise en forme et notamment pour l'emboutissage
JP3750789B2 (ja) * 1999-11-19 2006-03-01 株式会社神戸製鋼所 延性に優れる溶融亜鉛めっき鋼板およびその製造方法
CA2387322C (fr) * 2001-06-06 2008-09-30 Kawasaki Steel Corporation Tole d'acier a ductilite elevee possedant des proprietes superieures de formabilite sous pressage et de vieillissement par ecrouissage, et methode de fabrication dudit produit

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0586704A1 (fr) * 1991-05-30 1994-03-16 Nippon Steel Corporation Tole d'acier laminee a chaud a rapport d'elasticite eleve et a haute resistance presentant une plasticite ou une plasticite/soudabilite par points excellente, et son procede de production
EP0707087A1 (fr) * 1994-04-26 1996-04-17 Nippon Steel Corporation Feuille en acier haute resistance convenant a l'emboutissage profond et son procede de fabrication
EP0974677A1 (fr) * 1997-01-29 2000-01-26 Nippon Steel Corporation Tole d'acier a haute resistance mecanique, tres resistante a la deformation dynamique et d'une excellente ouvrabilite, et son procede de fabrication
JPH1143740A (ja) * 1997-05-29 1999-02-16 Kawasaki Steel Corp 耐衝撃特性に優れた高強度高加工性熱延鋼板
EP0922782A1 (fr) * 1997-06-16 1999-06-16 Kawasaki Steel Corporation Tole d'acier laminee a froid a resistance et aptitude au fa onnage elevees presentant une excellente resistance aux chocs
JPH11189839A (ja) * 1997-12-26 1999-07-13 Nippon Steel Corp 高い動的変形抵抗を有する高強度鋼板とその製造方法
JPH11323489A (ja) * 1998-05-13 1999-11-26 Nippon Steel Corp 形状凍結性に優れた良加工性高強度冷延鋼板およびその製造方法
JP2000256789A (ja) * 1999-03-10 2000-09-19 Kobe Steel Ltd 加工性および点溶接性に優れた冷延鋼板およびプレめっき合金化溶融亜鉛めっき鋼板並びにそれらの製造方法
JP2001152287A (ja) * 1999-11-26 2001-06-05 Kobe Steel Ltd スポット溶接性に優れた高強度冷延鋼板
EP1201780A1 (fr) * 2000-04-21 2002-05-02 Nippon Steel Corporation Plaque d'acier presentant une excellente aptitude a l'ebarbage et une resistance elevee a la fatigue, et son procede de production

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05 31 May 1999 (1999-05-31) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 12 3 January 2001 (2001-01-03) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 23 10 February 2001 (2001-02-10) *
SPIEKERMANN P: "LEGIERUNGEN - EIN BESONDERES PATENTRECHTLICHES PROBLEM? - LEGIERUNGSPRUEFUNG IM EUROPAEISCHEN PATENTAMT -", MITTEILUNGEN DER DEUTSCHEN PATENTANWAELTE, HEYMANN, KOLN,, DE, 1993, pages 178 - 190, XP000961882, ISSN: 0026-6884 *

Also Published As

Publication number Publication date
EP1389639A2 (fr) 2004-02-18
JP3828466B2 (ja) 2006-10-04
EP1389639B1 (fr) 2011-01-05
US20040159373A1 (en) 2004-08-19
JP2004059996A (ja) 2004-02-26

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