EP2048254A4 - Feuille d'acier à haute résistance excellente en termes d'aptitude à l'étirement des bordures et de tenue à la fatigue - Google Patents

Feuille d'acier à haute résistance excellente en termes d'aptitude à l'étirement des bordures et de tenue à la fatigue

Info

Publication number
EP2048254A4
EP2048254A4 EP07738099A EP07738099A EP2048254A4 EP 2048254 A4 EP2048254 A4 EP 2048254A4 EP 07738099 A EP07738099 A EP 07738099A EP 07738099 A EP07738099 A EP 07738099A EP 2048254 A4 EP2048254 A4 EP 2048254A4
Authority
EP
European Patent Office
Prior art keywords
stretchability
fatigue
terms
edge
steel sheet
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
EP07738099A
Other languages
German (de)
English (en)
Other versions
EP2048254B1 (fr
EP2048254A1 (fr
Inventor
Katsuhiro Sasai
Wataru Ohashi
Kenichi Yamamoto
Kaoru Kawasaki
Hiroshi Harada
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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
Priority claimed from JP2006193893A external-priority patent/JP4901346B2/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP2048254A1 publication Critical patent/EP2048254A1/fr
Publication of EP2048254A4 publication Critical patent/EP2048254A4/fr
Application granted granted Critical
Publication of EP2048254B1 publication Critical patent/EP2048254B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing characterised by the working steps
    • C21D8/0426—Hot rolling
    • 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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • 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
    • C21D2211/002—Bainite

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)
EP07738099.6A 2006-07-14 2007-03-02 Tole d'acier à haute résistance supérieure dans la formabilité des bords d'étirage et les carastéristiques de fatigue Active EP2048254B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006193893A JP4901346B2 (ja) 2005-11-07 2006-07-14 伸びフランジ性と疲労特性に優れた高強度鋼板
PCT/JP2007/054614 WO2008007477A1 (fr) 2006-07-14 2007-03-02 Feuille d'acier à haute résistance excellente en termes d'aptitude à l'étirement des bordures et de tenue à la fatigue

Publications (3)

Publication Number Publication Date
EP2048254A1 EP2048254A1 (fr) 2009-04-15
EP2048254A4 true EP2048254A4 (fr) 2012-11-07
EP2048254B1 EP2048254B1 (fr) 2020-08-19

Family

ID=38923047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07738099.6A Active EP2048254B1 (fr) 2006-07-14 2007-03-02 Tole d'acier à haute résistance supérieure dans la formabilité des bords d'étirage et les carastéristiques de fatigue

Country Status (8)

Country Link
US (1) US20090317285A1 (fr)
EP (1) EP2048254B1 (fr)
KR (1) KR20090018167A (fr)
CN (1) CN101490295B (fr)
AU (1) AU2007273767B2 (fr)
CA (1) CA2657587C (fr)
TW (1) TWI424069B (fr)
WO (1) WO2008007477A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4431185B2 (ja) 2008-06-13 2010-03-10 新日本製鐵株式会社 伸びフランジ性と疲労特性に優れた高強度鋼板およびその溶鋼の溶製方法
JP4659142B2 (ja) * 2009-03-27 2011-03-30 新日本製鐵株式会社 浸炭焼入れ性の優れた炭素鋼板およびその製造方法
CN102892910B (zh) * 2010-05-10 2016-11-16 新日铁住金株式会社 高强度钢板及其制造方法
JP5765080B2 (ja) * 2010-06-25 2015-08-19 Ｊｆｅスチール株式会社 伸びフランジ性に優れた高強度熱延鋼板およびその製造方法
US9617626B2 (en) 2011-02-24 2017-04-11 Nippon Steel & Sumitomo Metal Corporation High-strength steel sheet exhibiting excellent stretch-flange formability and bending workability, and method of producing molten steel for the high-strength steel sheet
MX352397B (es) * 2011-07-29 2017-11-23 Nippon Steel & Sumitomo Metal Corp Lamina de acero de alta resistencia y lamina de acero galvanizada de alta resistencia excelentes en moldeabilidad y metodos de produccion de las mismas.
US10870901B2 (en) * 2015-09-22 2020-12-22 Tata Steel Ijmuiden B.V. Hot-rolled high-strength roll-formable steel sheet with excellent stretch-flange formability and a method of producing said steel
CN107400824A (zh) * 2016-05-18 2017-11-28 鞍钢股份有限公司 一种延伸凸缘性优异的高强度汽车车轮用钢及其生产方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004256906A (ja) * 2003-02-28 2004-09-16 Nippon Steel Corp 伸びフランジ成形性に優れた高強度鋼板およびその製造方法
JP2005307301A (ja) * 2004-04-23 2005-11-04 Nippon Steel Corp 伸びフランジ性に優れた高強度鋼板
JP2006070302A (ja) * 2004-08-31 2006-03-16 Nippon Steel Corp 伸びフランジ性と疲労特性に優れた高強度熱延鋼板

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287519A1 (fr) * 1974-10-07 1976-05-07 Kobe Steel Ltd Acier structural de bonne aptitude au soudage avec grand apport de chaleur et son procede de fabrication
JP3619359B2 (ja) 1998-01-19 2005-02-09 新日本製鐵株式会社 疲労特性に優れた複合組織高強度冷延鋼板およびその製造方法
JP4258934B2 (ja) 2000-01-17 2009-04-30 Ｊｆｅスチール株式会社 加工性と疲労特性に優れた高強度熱延鋼板およびその製造方法
JP3650601B2 (ja) * 2001-12-07 2005-05-25 新日本製鐵株式会社 伸びフランジ性と疲労特性に優れた高強度熱延鋼板およびその製造方法
JP4430284B2 (ja) * 2002-07-23 2010-03-10 新日本製鐵株式会社 アルミナクラスターの少ない鋼材
JP4105974B2 (ja) * 2003-04-16 2008-06-25 新日本製鐵株式会社 打ち抜き端面の疲労特性と伸びフランジ性に優れた高強度熱延鋼板およびその製造方法
JP2005256115A (ja) * 2004-03-12 2005-09-22 Nippon Steel Corp 伸びフランジ性と疲労特性に優れた高強度熱延鋼板
JP4862266B2 (ja) * 2004-03-25 2012-01-25 Ｊｆｅスチール株式会社 厚肉低降伏比高張力鋼板の製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004256906A (ja) * 2003-02-28 2004-09-16 Nippon Steel Corp 伸びフランジ成形性に優れた高強度鋼板およびその製造方法
JP2005307301A (ja) * 2004-04-23 2005-11-04 Nippon Steel Corp 伸びフランジ性に優れた高強度鋼板
JP2006070302A (ja) * 2004-08-31 2006-03-16 Nippon Steel Corp 伸びフランジ性と疲労特性に優れた高強度熱延鋼板

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008007477A1 *

Also Published As

Publication number Publication date
CA2657587C (fr) 2013-11-26
CA2657587A1 (fr) 2008-01-17
EP2048254B1 (fr) 2020-08-19
US20090317285A1 (en) 2009-12-24
CN101490295A (zh) 2009-07-22
CN101490295B (zh) 2012-09-19
KR20090018167A (ko) 2009-02-19
TW200804607A (en) 2008-01-16
EP2048254A1 (fr) 2009-04-15
TWI424069B (zh) 2014-01-21
AU2007273767A1 (en) 2008-01-17
WO2008007477A1 (fr) 2008-01-17
AU2007273767B2 (en) 2010-08-12

Similar Documents

Publication Publication Date Title
EP2048254A4 (fr) Feuille d'acier à haute résistance excellente en termes d'aptitude à l'étirement des bordures et de tenue à la fatigue
EP2180075A4 (fr) Tôle d'acier de résistance élevée présentant une excellente aptitude à la flexion et une excellente résistance à la fatigue
EP2267175A4 (fr) Tôle d'acier laminée à chaud possédant d'excellentes propriétés à la fatigue et une excellente aptitude au formage de bord bombé et procédé de fabrication de la tôle d'acier laminée à chaud
EP2216422A4 (fr) Tôle d'acier laminée à froid de haute résistance
EP2251449A4 (fr) Tôle d'acier inoxydable de ferrite-austénite présentant d'excellentes propriétés de résistance au striage et d'aptitude au façonnage et son procédé de fabrication
GB2452230B (en) High-strength composite steel sheet having excellent formability and anti-delayed fraction property
EP2060647A4 (fr) Acier pour structure mécanique présentant une excellente usinabilité et une excellente propriété de résistance
EP2264206A4 (fr) Tôles d'acier à haute résistance présentant un excellent équilibre entre l'aptitude à l'ébarbage et la ductilité et une excellente endurance à la fatigue, tôles d'acier revêtues de zinc et procédés pour leur production
EP2256224A4 (fr) Tôle d'acier galvanisée à haute résistance, tôle galvanisée à chaud alliée à haute résistance et tôle d'acier laminée à froid à haute résistance qui excellent en termes d'aptitude au moulage et au soudage, et procédé de fabrication de toutes ces tôles
EP2053139A4 (fr) Feuilles d'acier laminees a chaud excellentes a la fois en matiere d'usinabilite et de resistance et robustesse apres un traitement thermique et leur processus de fabrication
EP2246455A4 (fr) Acier inoxydable ferritique de haute pureté excellent en termes de résistance à la corrosion et d'aptitude au façonnage et procédé pour la production de celui-ci
GB2456981B (en) Composite made of two steel sheets
EP2098309A4 (fr) Procédé de laminage à froid d'une bande d'acier et procédé de fabrication d'une feuille d'acier laminée à froid ayant une résistance élevée
EP2182085A4 (fr) Plaque d'acier inoxydable ferritique présentant une excellente aptitude au découpage à la matrice et son procédé de fabrication
EP2248920A4 (fr) Alliage d'iridium présentant d'excellentes dureté, aptitude à la transformation et propriété antitache
SI1751321T1 (sl) Jeklo z visoko mehansko odpornostjo in odpornostjo proti obrabi
EP2097548A4 (fr) Tôle d'acier à haute résistance et à remarquable résistance à l'impact, et son procédé de fabrication
BRPI0821572A2 (pt) Processo de fabricação de chapas de aço laminadas a frio e recozidas com resistência muito elevada, e chapas assim produzidas
PT2664698T (pt) Fibras de carbono com resistência e módulo melhorados
EP1811048A4 (fr) FEUILLE D ACIER DE FORTE TENEUR EN Al ET PRÉSENTANT UNE EXCELLENTE USINABILITÉ ET PROCÉDÉ DE FABRICATION IDOINE
EP2400040A4 (fr) Rail perlitique présentant une excellente résistance à l'usure et une excellente ténacité
EP2290116A4 (fr) Tôle d'acier épaisse présentant une résistance élevée et son procédé de fabrication
EP2224030A4 (fr) Acier inoxydable ferrique présentant une excellente aptitude au brasage
EP2343390A4 (fr) Rail de perlite présentant une résistance à l'abrasion supérieure et une excellente ténacité
EP1724371A4 (fr) Plaque d'acier de résistance élevée d'un composite galvanisé à chaud au trempé de zinc excellente en termes d'aptitude au façonnage et de caractéristiques d'agrandissement d'alésage, et procédé de fabrication de celle-ci

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: 20090211

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

A4 Supplementary search report drawn up and despatched

Effective date: 20121009

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 9/46 20060101ALI20120928BHEP

Ipc: C22C 38/14 20060101ALI20120928BHEP

Ipc: C22C 38/00 20060101AFI20120928BHEP

Ipc: C22C 38/38 20060101ALI20120928BHEP

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NIPPON STEEL & SUMITOMO METAL CORPORATION

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170517

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NIPPON STEEL CORPORATION

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

INTG Intention to grant announced

Effective date: 20200224

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

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602007060559

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602007060559

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20210520

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

Effective date: 20210302

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

Ref country code: GB

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

Effective date: 20210302

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

Ref country code: DE

Payment date: 20250128

Year of fee payment: 19

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

Ref country code: FR

Payment date: 20250210

Year of fee payment: 19

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

Ref country code: IT

Payment date: 20250211

Year of fee payment: 19