EP4036267A4 - Acier à phase complexe ayant une faculté d'expansion de trous élevée et procédé de fabrication pour celui-ci - Google Patents

Acier à phase complexe ayant une faculté d'expansion de trous élevée et procédé de fabrication pour celui-ci Download PDF

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Publication number
EP4036267A4
EP4036267A4 EP20869076.8A EP20869076A EP4036267A4 EP 4036267 A4 EP4036267 A4 EP 4036267A4 EP 20869076 A EP20869076 A EP 20869076A EP 4036267 A4 EP4036267 A4 EP 4036267A4
Authority
EP
European Patent Office
Prior art keywords
faculty
manufacturing
same
high hole
complex phase
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.)
Pending
Application number
EP20869076.8A
Other languages
German (de)
English (en)
Other versions
EP4036267A1 (fr
Inventor
Chunsu Liu
Yulong Zhang
Siliang Zhang
Feng Yang
Yaping NI
Jintao Wang
Hanlong ZHANG
Ming Wang
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.)
Baoshan Iron and Steel Co Ltd
Original Assignee
Baoshan Iron and Steel 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 Baoshan Iron and Steel Co Ltd filed Critical Baoshan Iron and Steel Co Ltd
Publication of EP4036267A1 publication Critical patent/EP4036267A1/fr
Publication of EP4036267A4 publication Critical patent/EP4036267A4/fr
Pending legal-status Critical Current

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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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • 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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for cooling
    • 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
    • C21D6/02—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 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
    • 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
    • C21D8/021—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 involving particular fabrication steps or treatments of ingots or slabs
    • 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
    • C21D8/0221—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 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 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
    • C21D8/0221—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 characterised by the working steps
    • C21D8/0242—Flattening; Dressing; Flexing
    • 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
    • C21D8/0247—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 characterised by the heat treatment
    • C21D8/0263—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 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 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
    • C21D8/0278—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 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
    • 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
    • C22C38/18—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
    • 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
    • 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
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • 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
    • 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
    • C21D2211/004—Dispersions; Precipitations
    • 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
    • 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
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/027—Associated apparatus, e.g. for pretreating or after-treating

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
EP20869076.8A 2019-09-27 2020-09-25 Acier à phase complexe ayant une faculté d'expansion de trous élevée et procédé de fabrication pour celui-ci Pending EP4036267A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910920750.3A CN112575267A (zh) 2019-09-27 2019-09-27 一种高扩孔复相钢及其制造方法
PCT/CN2020/117724 WO2021057899A1 (fr) 2019-09-27 2020-09-25 Acier à phase complexe ayant une faculté d'expansion de trous élevée et procédé de fabrication pour celui-ci

Publications (2)

Publication Number Publication Date
EP4036267A1 EP4036267A1 (fr) 2022-08-03
EP4036267A4 true EP4036267A4 (fr) 2023-06-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20869076.8A Pending EP4036267A4 (fr) 2019-09-27 2020-09-25 Acier à phase complexe ayant une faculté d'expansion de trous élevée et procédé de fabrication pour celui-ci

Country Status (6)

Country Link
US (1) US20220341010A1 (fr)
EP (1) EP4036267A4 (fr)
JP (1) JP7375179B2 (fr)
KR (1) KR20220073762A (fr)
CN (1) CN112575267A (fr)
WO (1) WO2021057899A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116837274A (zh) * 2022-03-24 2023-10-03 上海梅山钢铁股份有限公司 一种经济型抗拉强度750MPa级高扩孔热轧钢板
CN117265380B (zh) * 2022-06-15 2026-01-20 宝山钢铁股份有限公司 一种800MPa级高扩孔热镀锌钢板及其制造方法
CN117305690A (zh) * 2022-06-22 2023-12-29 宝山钢铁股份有限公司 一种高扩孔超高塑性钢及其制造方法
CN117344203A (zh) * 2022-06-27 2024-01-05 宝山钢铁股份有限公司 一种抗拉强度800Mpa级热轧复相钢及其制造方法
CN117512433A (zh) * 2022-07-28 2024-02-06 宝山钢铁股份有限公司 一种高表面高扩孔钢及其制造方法
CN116083795A (zh) * 2022-12-23 2023-05-09 本钢板材股份有限公司 一种具有高r值的热轧高扩孔钢及其生产方法
CN116607075B (zh) * 2023-05-26 2025-09-30 鞍钢股份有限公司 薄坯生产厚规格355MPa高韧性管桩用钢及生产方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101285156A (zh) * 2008-06-05 2008-10-15 广州珠江钢铁有限责任公司 一种700MPa级复合强化贝氏体钢及其制备方法
KR20130110638A (ko) * 2012-03-29 2013-10-10 현대제철 주식회사 강판 및 그 제조 방법
CN103602895A (zh) * 2013-11-29 2014-02-26 宝山钢铁股份有限公司 一种抗拉强度780MPa级高扩孔钢板及其制造方法
US20140230970A1 (en) * 2011-03-24 2014-08-21 Arcelormittal Investigacion Y Desarroll Sl Hot-rolled steel sheet and associated production method
CN104513930A (zh) * 2014-12-19 2015-04-15 宝山钢铁股份有限公司 弯曲和扩孔性能良好的超高强热轧复相钢板和钢带及其制造方法
WO2015099222A1 (fr) * 2013-12-26 2015-07-02 주식회사 포스코 Tôle d'acier laminée à chaud qui présente une excellente propriété de soudage et une excellente propriété d'ébarbage, et son procédé de fabrication
CN105821301A (zh) * 2016-04-21 2016-08-03 河北钢铁股份有限公司邯郸分公司 一种800MPa级热轧高强度扩孔钢及其生产方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5136182B2 (ja) * 2008-04-22 2013-02-06 新日鐵住金株式会社 切断後の特性劣化の少ない高強度鋼板及びその製造方法
EP2489748B1 (fr) * 2011-02-18 2017-12-13 ThyssenKrupp Steel Europe AG Produit plat en acier laminé à chaud fabriqué à partir d'un acier à phase complexe et son procédé de fabrication
JP6287623B2 (ja) * 2013-06-25 2018-03-07 新日鐵住金株式会社 高強度熱延鋼板とその製造方法
JP6354271B2 (ja) * 2014-04-08 2018-07-11 新日鐵住金株式会社 低温靭性と均一伸びと穴拡げ性に優れた引張強度７８０ＭＰａ以上の高強度熱延鋼板及びその製造方法
CN105483545A (zh) 2014-09-19 2016-04-13 鞍钢股份有限公司 一种800MPa级热轧高扩孔钢板及其制造方法
JP6399201B2 (ja) * 2015-02-25 2018-10-03 新日鐵住金株式会社 熱延鋼板
JP6515386B2 (ja) * 2015-07-28 2019-05-22 日本製鉄株式会社 熱延鋼板およびその製造方法
CN106521327B (zh) * 2016-12-27 2018-08-21 首钢集团有限公司 一种具有高扩孔性能的热轧酸洗带钢及其生产方法
WO2018134186A1 (fr) * 2017-01-20 2018-07-26 thyssenkrupp Hohenlimburg GmbH Produit plat en acier laminé à chaud constitué d'un acier à phase complexe ayant une structure essentiellement bainitique et procédé pour fabriquer un tel produit plat en acier
CN108570604A (zh) 2018-04-28 2018-09-25 唐山钢铁集团有限责任公司 一种780MPa级热轧酸洗高扩孔钢带及其生产方法
KR102098478B1 (ko) * 2018-07-12 2020-04-07 주식회사 포스코 고강도, 고성형성, 우수한 소부경화성을 갖는 열연도금강판 및 그 제조방법
CN109594020B (zh) * 2018-12-28 2020-07-24 首钢集团有限公司 一种抗拉强度1000MPa级冷轧复相钢及其制备方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101285156A (zh) * 2008-06-05 2008-10-15 广州珠江钢铁有限责任公司 一种700MPa级复合强化贝氏体钢及其制备方法
US20140230970A1 (en) * 2011-03-24 2014-08-21 Arcelormittal Investigacion Y Desarroll Sl Hot-rolled steel sheet and associated production method
KR20130110638A (ko) * 2012-03-29 2013-10-10 현대제철 주식회사 강판 및 그 제조 방법
CN103602895A (zh) * 2013-11-29 2014-02-26 宝山钢铁股份有限公司 一种抗拉强度780MPa级高扩孔钢板及其制造方法
WO2015099222A1 (fr) * 2013-12-26 2015-07-02 주식회사 포스코 Tôle d'acier laminée à chaud qui présente une excellente propriété de soudage et une excellente propriété d'ébarbage, et son procédé de fabrication
CN104513930A (zh) * 2014-12-19 2015-04-15 宝山钢铁股份有限公司 弯曲和扩孔性能良好的超高强热轧复相钢板和钢带及其制造方法
CN105821301A (zh) * 2016-04-21 2016-08-03 河北钢铁股份有限公司邯郸分公司 一种800MPa级热轧高强度扩孔钢及其生产方法

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Publication number Publication date
US20220341010A1 (en) 2022-10-27
EP4036267A1 (fr) 2022-08-03
KR20220073762A (ko) 2022-06-03
WO2021057899A1 (fr) 2021-04-01
JP7375179B2 (ja) 2023-11-07
CN112575267A (zh) 2021-03-30
JP2022550329A (ja) 2022-12-01

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