JP5729211B2 - 冷延鋼板の製造方法、冷延鋼板および自動車部材 - Google Patents

冷延鋼板の製造方法、冷延鋼板および自動車部材 Download PDF

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JP5729211B2
JP5729211B2 JP2011177861A JP2011177861A JP5729211B2 JP 5729211 B2 JP5729211 B2 JP 5729211B2 JP 2011177861 A JP2011177861 A JP 2011177861A JP 2011177861 A JP2011177861 A JP 2011177861A JP 5729211 B2 JP5729211 B2 JP 5729211B2
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steel sheet
acid
cold
mass
rolled steel
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JP2012132092A (ja
Inventor
弘之 増岡
弘之 増岡
俊佑 山本
俊佑 山本
安藤　聡
聡 安藤
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JFE Steel Corp
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JFE Steel Corp
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Priority to JP2011177861A priority Critical patent/JP5729211B2/ja
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Priority to KR1020127033102A priority patent/KR101502213B1/ko
Priority to CN201180029582.0A priority patent/CN102959130B/zh
Priority to EP11821649.8A priority patent/EP2612957B1/en
Priority to US13/812,774 priority patent/US20130149526A1/en
Priority to BR112013004853A priority patent/BR112013004853A2/pt
Priority to MX2013000619A priority patent/MX348689B/es
Priority to PCT/JP2011/069193 priority patent/WO2012029632A1/ja
Priority to TW100131125A priority patent/TWI527934B/zh
Publication of JP2012132092A publication Critical patent/JP2012132092A/ja
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    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0269—Cleaning
    • 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
    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
    • 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
    • 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
    • C22C38/04—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
    • C22C38/08—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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/081—Iron or steel solutions containing H2SO4
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/085—Iron or steel solutions containing HNO3
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/086—Iron or steel solutions containing HF
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/088—Iron or steel solutions containing organic acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Chemical Treatment Of Metals (AREA)
JP2011177861A 2010-08-31 2011-08-16 冷延鋼板の製造方法、冷延鋼板および自動車部材 Active JP5729211B2 (ja)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP2011177861A JP5729211B2 (ja) 2010-08-31 2011-08-16 冷延鋼板の製造方法、冷延鋼板および自動車部材
CN201180029582.0A CN102959130B (zh) 2010-08-31 2011-08-25 冷轧钢板的制造方法、冷轧钢板和汽车构件
EP11821649.8A EP2612957B1 (en) 2010-08-31 2011-08-25 Method for producing cold-rolled steel sheet as well as cold-rolled steel sheet and members for automobile
US13/812,774 US20130149526A1 (en) 2010-08-31 2011-08-25 Method of producing cold-rolled steel sheet as well as cold-rolled steel sheet and members for automobile
KR1020127033102A KR101502213B1 (ko) 2010-08-31 2011-08-25 냉연 강판의 제조 방법, 냉연 강판 및 자동차 부재
BR112013004853A BR112013004853A2 (pt) 2010-08-31 2011-08-25 "método de produção de chapa de aço laminada a frio bem como chapas de aço laminadas a frio e membros para automóveis".
MX2013000619A MX348689B (es) 2010-08-31 2011-08-25 Método de producción de una lámina de acero laminada en frío así como una lámina de acero laminada en frío y miembros para un automóvil.
PCT/JP2011/069193 WO2012029632A1 (ja) 2010-08-31 2011-08-25 冷延鋼板の製造方法、冷延鋼板および自動車部材
TW100131125A TWI527934B (zh) 2010-08-31 2011-08-30 Cold-rolled steel sheet manufacturing method, cold-rolled steel sheet and automobile member

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2010193182 2010-08-31
JP2010193182 2010-08-31
JP2010266125 2010-11-30
JP2010266125 2010-11-30
JP2011177861A JP5729211B2 (ja) 2010-08-31 2011-08-16 冷延鋼板の製造方法、冷延鋼板および自動車部材

Publications (2)

Publication Number Publication Date
JP2012132092A JP2012132092A (ja) 2012-07-12
JP5729211B2 true JP5729211B2 (ja) 2015-06-03

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JP2011177861A Active JP5729211B2 (ja) 2010-08-31 2011-08-16 冷延鋼板の製造方法、冷延鋼板および自動車部材

Country Status (9)

Country Link
US (1) US20130149526A1 (zh)
EP (1) EP2612957B1 (zh)
JP (1) JP5729211B2 (zh)
KR (1) KR101502213B1 (zh)
CN (1) CN102959130B (zh)
BR (1) BR112013004853A2 (zh)
MX (1) MX348689B (zh)
TW (1) TWI527934B (zh)
WO (1) WO2012029632A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11085099B2 (en) 2016-02-18 2021-08-10 Jfe Steel Corporation High-strength cold-rolled steel sheet

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* Cited by examiner, † Cited by third party
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JP5835558B2 (ja) * 2010-08-31 2015-12-24 Ｊｆｅスチール株式会社 冷延鋼板の製造方法
JP5919920B2 (ja) * 2011-03-28 2016-05-18 Ｊｆｅスチール株式会社 Ｓｉ含有冷延鋼板の製造方法及び装置
JP5818046B2 (ja) * 2012-02-28 2015-11-18 Ｊｆｅスチール株式会社 Ｓｉ含有高強度冷延鋼板の製造方法
JP2013237912A (ja) * 2012-05-16 2013-11-28 Nippon Steel & Sumitomo Metal Corp 化成処理性に優れた高張力冷延鋼帯とその製造方法
JP5962543B2 (ja) * 2012-07-23 2016-08-03 Ｊｆｅスチール株式会社 高強度鋼板の製造方法
JP5962542B2 (ja) * 2012-07-23 2016-08-03 Ｊｆｅスチール株式会社 高強度鋼板の製造方法
JP5962541B2 (ja) * 2012-07-23 2016-08-03 Ｊｆｅスチール株式会社 高強度鋼板の製造方法
WO2015133077A1 (ja) * 2014-03-04 2015-09-11 Ｊｆｅスチール株式会社 冷延鋼板およびその製造方法、ならびに自動車部材
JP6102902B2 (ja) * 2014-03-05 2017-03-29 Ｊｆｅスチール株式会社 冷延鋼板、その製造方法、高強度溶融亜鉛めっき鋼板及び高強度合金化溶融亜鉛めっき鋼板
DE112014006656B4 (de) * 2014-05-14 2018-05-17 Carsgen Therapeutics Limited Nukleinsäure zur Kodierung eines chimären Antigen-Rezeptor-Proteins und T-Lymphozyt zur Expression eines chimären Antigen-Rezeptor-Proteins
JP6137089B2 (ja) * 2014-09-02 2017-05-31 Ｊｆｅスチール株式会社 冷延鋼板の製造方法および冷延鋼板の製造設備
CN105483549B (zh) * 2014-09-19 2017-07-21 鞍钢股份有限公司 一种宽薄规格汽车用高强度冷轧钢板及生产方法
EP3272892B1 (en) * 2015-03-18 2019-08-28 JFE Steel Corporation High-strength cold-rolled steel sheet and method for manufacturing same
JP6041079B1 (ja) * 2015-07-08 2016-12-07 Ｊｆｅスチール株式会社 冷延鋼帯の製造方法及び製造設備
CN107709620B (zh) * 2015-07-08 2020-04-14 杰富意钢铁株式会社 冷轧钢带的制造方法及制造设备
US11008635B2 (en) 2016-02-18 2021-05-18 Jfe Steel Corporation High-strength cold-rolled steel sheet
DE102016117508B4 (de) * 2016-09-16 2019-10-10 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung eines Stahlflachprodukts aus einem mittelmanganhaltigen Stahl und ein derartiges Stahlflachprodukt
KR101889193B1 (ko) * 2016-12-22 2018-08-16 주식회사 포스코 내식성 및 가공성이 우수한 냉연강판 및 그 제조방법
JP6191810B1 (ja) * 2017-03-24 2017-09-06 新日鐵住金株式会社 鋼板の製造方法
JP6673290B2 (ja) * 2017-05-19 2020-03-25 Ｊｆｅスチール株式会社 高強度溶融亜鉛めっき鋼板の製造方法
KR101951936B1 (ko) * 2017-08-24 2019-02-25 주식회사포스코 고강도 냉연강판의 제조방법
CN107974631B (zh) * 2017-12-01 2019-07-30 安徽工业大学 一种多维度增强增塑生产高强塑积超高强度第三代汽车用钢的方法
CN107937690A (zh) * 2017-12-28 2018-04-20 滁州宝岛特种冷轧带钢有限公司 一种冷轧带钢的热处理工艺
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