EP2907887A4 - Cold-rolled steel sheet with superior shape fixability and manufacturing method therefor - Google Patents

Cold-rolled steel sheet with superior shape fixability and manufacturing method therefor

Info

Publication number
EP2907887A4
EP2907887A4 EP12886281.0A EP12886281A EP2907887A4 EP 2907887 A4 EP2907887 A4 EP 2907887A4 EP 12886281 A EP12886281 A EP 12886281A EP 2907887 A4 EP2907887 A4 EP 2907887A4
Authority
EP
European Patent Office
Prior art keywords
cold
manufacturing
steel sheet
rolled steel
method therefor
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
EP12886281.0A
Other languages
German (de)
French (fr)
Other versions
EP2907887A1 (en
EP2907887B1 (en
Inventor
Taro Kizu
Koichiro Fujita
Hideharu Koga
Masahide Morikawa
Kenji Tahara
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.)
JFE Steel Corp
Original Assignee
JFE 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
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP2907887A1 publication Critical patent/EP2907887A1/en
Publication of EP2907887A4 publication Critical patent/EP2907887A4/en
Application granted granted Critical
Publication of EP2907887B1 publication Critical patent/EP2907887B1/en
Not-in-force 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • 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
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—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
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold 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
    • 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
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following 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
    • 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
    • C22C38/001—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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • 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
    • 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • 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)
EP12886281.0A 2012-10-11 2012-10-11 Cold-rolled steel sheet with superior shape fixability and manufacturing method therefor Not-in-force EP2907887B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/006532 WO2014057519A1 (en) 2012-10-11 2012-10-11 Cold-rolled steel sheet with superior shape fixability and manufacturing method therefor

Publications (3)

Publication Number Publication Date
EP2907887A1 EP2907887A1 (en) 2015-08-19
EP2907887A4 true EP2907887A4 (en) 2015-12-02
EP2907887B1 EP2907887B1 (en) 2018-12-05

Family

ID=50477012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12886281.0A Not-in-force EP2907887B1 (en) 2012-10-11 2012-10-11 Cold-rolled steel sheet with superior shape fixability and manufacturing method therefor

Country Status (7)

Country Link
US (1) US20150252456A1 (en)
EP (1) EP2907887B1 (en)
JP (1) JPWO2014057519A1 (en)
KR (1) KR20150060957A (en)
CN (1) CN104870678A (en)
IN (1) IN2015KN00599A (en)
WO (1) WO2014057519A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101819358B1 (en) * 2016-08-12 2018-01-17 주식회사 포스코 High-strength thin steel sheet having excellent formability and method for manufacturing the same
JP6468408B2 (en) * 2016-12-21 2019-02-13 新日鐵住金株式会社 H-section steel and its manufacturing method
KR20210079460A (en) * 2019-12-19 2021-06-30 주식회사 포스코 Cold-rolled steel sheet having high hardness and formability and manufacturing method thereof
JPWO2023140239A1 (en) * 2022-01-21 2023-07-27

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2309013A1 (en) * 2008-07-22 2011-04-13 JFE Steel Corporation Cold-rolled steel sheet, process for production of same, and backlight chassis
WO2011087108A1 (en) * 2010-01-15 2011-07-21 Ｊｆｅスチール株式会社 Steel plate having excellent moldability and shape retention, and method for producing same
WO2011162135A1 (en) * 2010-06-23 2011-12-29 Ｊｆｅスチール株式会社 Cold-rolled thin steel sheet having excellent shape fixability, and process for production thereof

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06116648A (en) * 1992-10-02 1994-04-26 Nippon Steel Corp Production of cold rolled steel sheet or hot dip galvanized steel sheet excellent in baking hardenability and non-aging characteristic
JP3105380B2 (en) * 1993-06-21 2000-10-30 新日本製鐵株式会社 Manufacturing method of cold-rolled steel sheet for deep drawing with excellent dent resistance and surface distortion resistance
JPH0770650A (en) * 1993-09-02 1995-03-14 Kawasaki Steel Corp Production of cold rolled steel sheet extremely excellent in deep drawability
KR100398464B1 (en) 1998-07-27 2003-10-10 신닛뽄세이테쯔 카부시키카이샤 Ferrite-based thin steel sheet excellent in shape freezing feature and manufacturing method thereof
JP2002066637A (en) 2000-08-31 2002-03-05 Nippon Steel Corp Press forming method excellent in dimensional accuracy of formed object
JP3674502B2 (en) * 2000-11-30 2005-07-20 Ｊｆｅスチール株式会社 Bake-hardening cold-rolled steel sheet and method for producing the same
JP3908954B2 (en) * 2001-06-05 2007-04-25 新日本製鐵株式会社 Ferritic thin steel sheet with excellent shape freezing property and manufacturing method thereof
EP2806046B1 (en) * 2006-03-16 2019-07-03 JFE Steel Corporation Cold-rolled steel sheet, method of producing the same, battery, and method of producing the same
JP5093029B2 (en) * 2008-09-29 2012-12-05 住友金属工業株式会社 Cold rolled steel sheet and method for producing the same
JP5515732B2 (en) * 2009-12-25 2014-06-11 Ｊｆｅスチール株式会社 Method for producing hot-rolled steel sheet without edge cracks and method for producing cold-rolled steel sheet without edge cracks
JP5541243B2 (en) * 2011-07-15 2014-07-09 Ｊｆｅスチール株式会社 Cold-rolled steel sheet having excellent shape freezing property and manufacturing method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2309013A1 (en) * 2008-07-22 2011-04-13 JFE Steel Corporation Cold-rolled steel sheet, process for production of same, and backlight chassis
WO2011087108A1 (en) * 2010-01-15 2011-07-21 Ｊｆｅスチール株式会社 Steel plate having excellent moldability and shape retention, and method for producing same
WO2011162135A1 (en) * 2010-06-23 2011-12-29 Ｊｆｅスチール株式会社 Cold-rolled thin steel sheet having excellent shape fixability, and process for production thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014057519A1 *

Also Published As

Publication number Publication date
CN104870678A (en) 2015-08-26
WO2014057519A1 (en) 2014-04-17
IN2015KN00599A (en) 2015-07-17
US20150252456A1 (en) 2015-09-10
JPWO2014057519A1 (en) 2016-08-25
EP2907887A1 (en) 2015-08-19
EP2907887B1 (en) 2018-12-05
KR20150060957A (en) 2015-06-03

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