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EP1805339A4 - High strength cold rolled steel sheet having excellent shape freezability, and method for manufacturing the same - Google Patents

High strength cold rolled steel sheet having excellent shape freezability, and method for manufacturing the same

Info

Publication number
EP1805339A4
EP1805339A4 EP05856408A EP05856408A EP1805339A4 EP 1805339 A4 EP1805339 A4 EP 1805339A4 EP 05856408 A EP05856408 A EP 05856408A EP 05856408 A EP05856408 A EP 05856408A EP 1805339 A4 EP1805339 A4 EP 1805339A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
steel sheet
same
high strength
rolled steel
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.)
Withdrawn
Application number
EP05856408A
Other languages
German (de)
French (fr)
Other versions
EP1805339A1 (en
Inventor
Shi-Hoon Choi
Chin-Chul Kim
Kwang-Geun Chin
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.)
Posco Holdings Inc
Original Assignee
Posco Co 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
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP1805339A1 publication Critical patent/EP1805339A1/en
Publication of EP1805339A4 publication Critical patent/EP1805339A4/en
Withdrawn legal-status Critical Current

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
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/02—Hardening by precipitation
    • 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
    • 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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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

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)
EP05856408A 2004-09-30 2005-09-30 High strength cold rolled steel sheet having excellent shape freezability, and method for manufacturing the same Withdrawn EP1805339A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040077814A KR20060028909A (en) 2004-09-30 2004-09-30 High strength cold rolled steel sheet with excellent shape freezing property and manufacturing method thereof
PCT/KR2005/003239 WO2006080670A1 (en) 2004-09-30 2005-09-30 High strength cold rolled steel sheet having excellent shape freezability, and method for manufacturing the same

Publications (2)

Publication Number Publication Date
EP1805339A1 EP1805339A1 (en) 2007-07-11
EP1805339A4 true EP1805339A4 (en) 2009-03-25

Family

ID=36740656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05856408A Withdrawn EP1805339A4 (en) 2004-09-30 2005-09-30 High strength cold rolled steel sheet having excellent shape freezability, and method for manufacturing the same

Country Status (6)

Country Link
US (1) US20070289679A1 (en)
EP (1) EP1805339A4 (en)
JP (1) JP2008514820A (en)
KR (1) KR20060028909A (en)
CN (1) CN100494449C (en)
WO (1) WO2006080670A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013060619A (en) * 2011-09-12 2013-04-04 Jfe Steel Corp Thin steel sheet excellent in workability and method for producing the same
JP5862254B2 (en) * 2011-12-08 2016-02-16 Ｊｆｅスチール株式会社 Hot-rolled steel sheet for cold rolling material and manufacturing method thereof
WO2013161090A1 (en) * 2012-04-26 2013-10-31 Ｊｆｅスチール株式会社 High-strength hot-rolled steel plate with good ductility, stretch flangeability and material quality uniformity, and process for manufacturing same
KR101594670B1 (en) * 2014-05-13 2016-02-17 주식회사 포스코 Cold-rolled steel sheet and galvanized steel sheet having excellent ductility and method for manufacturing thereof
KR101676194B1 (en) * 2015-11-13 2016-11-15 주식회사 포스코 High Strength Blackplate Having Excellent Flangeability And Method For Manufacturing The Same
CN105441802B (en) * 2015-12-01 2017-05-24 攀钢集团西昌钢钒有限公司 Titanium-containing acid pickling plate and preparation method thereof
KR101786318B1 (en) * 2016-03-28 2017-10-18 주식회사 포스코 Cold-rolled steel sheet and plated steel sheet having excellent yield strength and ductility and method for manufacturing thereof
JP7343788B2 (en) * 2020-03-26 2023-09-13 日本製鉄株式会社 Heat treatment simulation method, heat treatment simulation device, and program
CN113122690B (en) * 2021-04-16 2022-03-22 攀钢集团攀枝花钢铁研究院有限公司 Low-delta r-value micro-carbon steel cold-rolled steel plate and preparation method thereof
CN115627424B (en) * 2022-11-07 2023-08-18 鞍钢股份有限公司 1.5 GPa-grade high-plasticity cold-rolled DH steel and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169022A (en) * 1981-04-11 1982-10-18 Sumitomo Metal Ind Ltd Production of cold rolled mild steel plate by continuous annealing
EP0444967A2 (en) * 1990-03-02 1991-09-04 Kabushiki Kaisha Kobe Seiko Sho Cold-rolled steel sheets or hot-dip galvanized cold rolled steel sheets for deep drawing
JPH05195146A (en) * 1992-01-22 1993-08-03 Nkk Corp Cold rolled steel sheet for deep drawing excellent in quality stability and its production
EP0435968B1 (en) * 1989-05-09 1995-08-09 Preussag Stahl Aktiengesellschaft Process for manufacturing coil-break-free hot strip and age-resistant hot-galvanized cold strip
US6162308A (en) * 1996-06-01 2000-12-19 Thyssen Stahl Ag Process for producing an easily shaped cold-rolled sheet or strip

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR800000710B1 (en) * 1979-09-15 1980-07-23 히라이도미 사부로오 High strength cold rolled steel sheet having bake-hardening properties
DE3803064C2 (en) * 1988-01-29 1995-04-20 Preussag Stahl Ag Cold rolled sheet or strip and process for its manufacture
JP3546287B2 (en) * 1997-10-15 2004-07-21 Ｊｆｅスチール株式会社 High-strength hot-rolled steel sheet excellent in workability and method for producing the same
EP1026278B2 (en) * 1998-07-27 2014-04-30 Nippon Steel & Sumitomo Metal Corporation Use of a ferritic steel sheet having excellent shape fixability and manufacturing method thereof
EP1571230B1 (en) * 2000-02-29 2006-12-13 JFE Steel Corporation High tensile strength cold rolled steel sheet having excellent strain age hardening characteristics and the production thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169022A (en) * 1981-04-11 1982-10-18 Sumitomo Metal Ind Ltd Production of cold rolled mild steel plate by continuous annealing
EP0435968B1 (en) * 1989-05-09 1995-08-09 Preussag Stahl Aktiengesellschaft Process for manufacturing coil-break-free hot strip and age-resistant hot-galvanized cold strip
EP0444967A2 (en) * 1990-03-02 1991-09-04 Kabushiki Kaisha Kobe Seiko Sho Cold-rolled steel sheets or hot-dip galvanized cold rolled steel sheets for deep drawing
JPH05195146A (en) * 1992-01-22 1993-08-03 Nkk Corp Cold rolled steel sheet for deep drawing excellent in quality stability and its production
US6162308A (en) * 1996-06-01 2000-12-19 Thyssen Stahl Ag Process for producing an easily shaped cold-rolled sheet or strip

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006080670A1 *

Also Published As

Publication number Publication date
JP2008514820A (en) 2008-05-08
CN101031666A (en) 2007-09-05
EP1805339A1 (en) 2007-07-11
KR20060028909A (en) 2006-04-04
CN100494449C (en) 2009-06-03
WO2006080670A1 (en) 2006-08-03
US20070289679A1 (en) 2007-12-20

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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: 20070404

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KIM, CHIN-CHUL,101-202, BOSUMMANSION

Inventor name: CHOI, SHI-HOON,202-1106, HYUNDAI APT.,

Inventor name: CHIN, KWANG-GEUN,C/O POSCO

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CHOI, SHI-HOON,202-1106, HYUNDAI APT.,

Inventor name: KIM, CHIN-CHUL,101-202, BOSUMMANSION

Inventor name: CHIN, KWANG-GEUN,C/O POSCO

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

Designated state(s): DE FR

A4 Supplementary search report drawn up and despatched

Effective date: 20090223

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/14 20060101ALI20090217BHEP

Ipc: C21D 9/46 20060101ALI20090217BHEP

Ipc: C22C 38/00 20060101AFI20060815BHEP

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090526