EP3279363A4 - HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME - Google Patents

HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME Download PDF

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Publication number
EP3279363A4
EP3279363A4 EP16772044.0A EP16772044A EP3279363A4 EP 3279363 A4 EP3279363 A4 EP 3279363A4 EP 16772044 A EP16772044 A EP 16772044A EP 3279363 A4 EP3279363 A4 EP 3279363A4
Authority
EP
European Patent Office
Prior art keywords
mpa
steel sheet
rolled steel
excellent workability
producing same
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
EP16772044.0A
Other languages
German (de)
French (fr)
Other versions
EP3279363A1 (en
EP3279363B1 (en
Inventor
Tadao Murata
Yuichi Futamura
Koji Kasuya
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
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Filing date
Publication date
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Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority claimed from PCT/JP2016/056169 external-priority patent/WO2016158160A1/en
Publication of EP3279363A1 publication Critical patent/EP3279363A1/en
Publication of EP3279363A4 publication Critical patent/EP3279363A4/en
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    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/001—Heat treatment of ferrous alloys containing Ni
    • 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
    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • 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
    • C22C38/005—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
    • C22C38/02—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
    • C22C38/06—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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C23C2/29—Cooling or quenching
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/22—Electroplating: Baths therefor from solutions of zinc
    • 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
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/008—Martensite
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
EP16772044.0A 2015-03-31 2016-03-01 HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME Active EP3279363B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2015071438 2015-03-31
JP2015225507A JP6554397B2 (en) 2015-03-31 2015-11-18 High strength cold rolled steel sheet having a tensile strength of 980 MPa or more excellent in workability and impact property, and a method of manufacturing the same
PCT/JP2016/056169 WO2016158160A1 (en) 2015-03-31 2016-03-01 HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME

Publications (3)

Publication Number Publication Date
EP3279363A1 EP3279363A1 (en) 2018-02-07
EP3279363A4 true EP3279363A4 (en) 2018-08-15
EP3279363B1 EP3279363B1 (en) 2020-05-13

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EP16772044.0A Active EP3279363B1 (en) 2015-03-31 2016-03-01 HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME

Country Status (6)

Country Link
US (1) US20180044752A1 (en)
EP (1) EP3279363B1 (en)
JP (1) JP6554397B2 (en)
KR (1) KR101970095B1 (en)
CN (1) CN107429371B (en)
MX (1) MX2017012438A (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6554396B2 (en) * 2015-03-31 2019-07-31 株式会社神戸製鋼所 High strength cold rolled steel sheet having a tensile strength of 980 MPa or more excellent in workability and impact property, and a method of manufacturing the same
CN108713066B (en) * 2016-03-07 2021-05-07 杰富意钢铁株式会社 High-strength steel sheet and method for producing same
US20190368002A1 (en) * 2017-01-16 2019-12-05 Nippon Steel Corporation Steel sheet and process for producing same
JP6901417B2 (en) * 2018-02-21 2021-07-14 株式会社神戸製鋼所 High-strength steel sheet and high-strength galvanized steel sheet, and their manufacturing method
JP6705560B2 (en) 2018-03-30 2020-06-03 Ｊｆｅスチール株式会社 High-strength steel sheet and method for manufacturing the same
CN111936658B (en) * 2018-03-30 2021-11-02 杰富意钢铁株式会社 High-strength steel sheet and method for producing same
TW202010852A (en) * 2018-06-29 2020-03-16 日商日本製鐵股份有限公司 High-strength steel sheet and manufacturing method thereof
MX2021004073A (en) 2018-10-10 2021-06-04 Jfe Steel Corp High-strength steel sheet and method for manufacturing same.
CN113272461B (en) * 2019-03-15 2023-04-25 日本制铁株式会社 Steel plate
KR102527545B1 (en) * 2019-03-28 2023-05-03 닛폰세이테츠 가부시키가이샤 high strength steel plate
MX2022004671A (en) * 2019-10-23 2022-05-26 Jfe Steel Corp High-strength steel sheet and method for producing same.
KR102353611B1 (en) * 2019-12-18 2022-01-20 주식회사 포스코 High strength steel sheet having excellent workability and method for manufacturing the same
KR102348529B1 (en) * 2019-12-18 2022-01-07 주식회사 포스코 High strength steel sheet having excellent workability and method for manufacturing the same
KR102348527B1 (en) * 2019-12-18 2022-01-07 주식회사 포스코 High strength steel sheet having excellent workability and method for manufacturing the same
KR102321285B1 (en) * 2019-12-18 2021-11-03 주식회사 포스코 High strength steel sheet having excellent workability and method for manufacturing the same
KR102321292B1 (en) * 2019-12-18 2021-11-03 주식회사 포스코 High strength steel sheet having excellent workability and method for manufacturing the same
KR102321295B1 (en) * 2019-12-18 2021-11-03 주식회사 포스코 High strength steel sheet having excellent workability and method for manufacturing the same
KR102321297B1 (en) * 2019-12-18 2021-11-03 주식회사 포스코 High strength steel sheet having excellent workability and method for manufacturing the same
KR102321288B1 (en) * 2019-12-18 2021-11-03 주식회사 포스코 High strength steel sheet having excellent workability and method for manufacturing the same
KR102321287B1 (en) * 2019-12-18 2021-11-03 주식회사 포스코 High strength steel sheet having excellent workability and method for manufacturing the same
CN111733367B (en) * 2020-07-08 2021-07-09 东莞理工学院 High-strength steel with nanometer, layered and metastable bone tissue and preparation method thereof
CN113215484B (en) * 2021-04-14 2022-04-19 首钢集团有限公司 Phase-change induced plasticity steel and preparation method and application thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014095155A (en) * 2013-12-27 2014-05-22 Nippon Steel & Sumitomo Metal Cold rolled steel sheet and its manufacturing method
US20140182748A1 (en) * 2008-01-31 2014-07-03 Jfe Steel Corporation Method for manufacturing high strength galvanized steel sheet with excellent formability
JP2014133944A (en) * 2012-12-12 2014-07-24 Kobe Steel Ltd High strengh steel sheet excellent in workability and low temperature toughness, and production method thereof
US20140241933A1 (en) * 2011-07-06 2014-08-28 Nippon Steel & Sumitomo Metal Corporation Cold-rolled steel sheet
US20140290810A1 (en) * 2011-10-13 2014-10-02 Jfe Steel Corporation High strength cold rolled steel sheet with excellent deep drawability and material uniformity in coil and method for manufacturing the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1484862A (en) 1973-09-12 1977-09-08 Zenith Carburetter Co Ltd Cold start fuel/air mixture supply devices for internal combustion engines
DE2519190C3 (en) 1975-04-30 1979-07-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen Copy grinder for true-to-size grinding of blades for turbines and compressors
JPS5487916A (en) 1977-12-24 1979-07-12 Nippon Accumulator Kk Special fluid feed method employing accumulator
JP3740779B2 (en) * 1997-03-12 2006-02-01 Ｊｆｅスチール株式会社 Steel plate for easy open can lid excellent in openability and rivet formability, manufacturing method thereof, and easy open can lid
EP2202327B1 (en) * 2007-10-25 2020-12-02 JFE Steel Corporation Method for manufacturing a high-strength galvanized steel sheet with excellent formability
JP5487916B2 (en) * 2009-11-30 2014-05-14 新日鐵住金株式会社 High-strength galvanized steel sheet having a tensile maximum strength of 900 MPa or more excellent in impact absorption energy and a method for producing the same
JP5668337B2 (en) * 2010-06-30 2015-02-12 Ｊｆｅスチール株式会社 Ultra-high-strength cold-rolled steel sheet excellent in ductility and delayed fracture resistance and method for producing the same
US20130133792A1 (en) * 2010-08-12 2013-05-30 Jfe Steel Corporation High-strength cold rolled sheet having excellent formability and crashworthiness and method for manufacturing the same
US9745639B2 (en) 2011-06-13 2017-08-29 Kobe Steel, Ltd. High-strength steel sheet excellent in workability and cold brittleness resistance, and manufacturing method thereof
CN103717771B (en) * 2011-07-29 2016-06-01 新日铁住金株式会社 The high tensile steel plate of shock-resistant excellent and manufacture method, high strength galvanized steel plate and manufacture method thereof
JP5896086B1 (en) * 2014-03-31 2016-03-30 Ｊｆｅスチール株式会社 High yield ratio high strength cold-rolled steel sheet and method for producing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140182748A1 (en) * 2008-01-31 2014-07-03 Jfe Steel Corporation Method for manufacturing high strength galvanized steel sheet with excellent formability
US20140241933A1 (en) * 2011-07-06 2014-08-28 Nippon Steel & Sumitomo Metal Corporation Cold-rolled steel sheet
US20140290810A1 (en) * 2011-10-13 2014-10-02 Jfe Steel Corporation High strength cold rolled steel sheet with excellent deep drawability and material uniformity in coil and method for manufacturing the same
JP2014133944A (en) * 2012-12-12 2014-07-24 Kobe Steel Ltd High strengh steel sheet excellent in workability and low temperature toughness, and production method thereof
JP2014095155A (en) * 2013-12-27 2014-05-22 Nippon Steel & Sumitomo Metal Cold rolled steel sheet and its manufacturing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHIAKI OUCHI ET AL: "The Effect of Hot Rolling Condition and Chemical Composition on the Onset Temperature of [gamma]-[alpha] Transformation after Hot Rolling", TRANSACTIONS OF THE IRON AND STEEL INSTITUTE OF JAPAN, vol. 22, no. 3, 1 January 1982 (1982-01-01), JP, pages 214 - 222, XP055457563, ISSN: 0021-1583, DOI: 10.2355/isijinternational1966.22.214 *

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US20180044752A1 (en) 2018-02-15
CN107429371A (en) 2017-12-01
EP3279363A1 (en) 2018-02-07
MX2017012438A (en) 2018-01-26
CN107429371B (en) 2020-04-21
JP6554397B2 (en) 2019-07-31
EP3279363B1 (en) 2020-05-13

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