EP4379083A4 - Tôle d'acier, et procédé de fabrication de celle-ci - Google Patents

Tôle d'acier, et procédé de fabrication de celle-ci Download PDF

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Publication number
EP4379083A4
EP4379083A4 EP22849577.6A EP22849577A EP4379083A4 EP 4379083 A4 EP4379083 A4 EP 4379083A4 EP 22849577 A EP22849577 A EP 22849577A EP 4379083 A4 EP4379083 A4 EP 4379083A4
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EP
European Patent Office
Prior art keywords
steel sheet
producing same
producing
same
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.)
Pending
Application number
EP22849577.6A
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German (de)
English (en)
Other versions
EP4379083A1 (fr
Inventor
Taku MIYAKAWA
Kyohei ISHIKAWA
Takafumi Yokoyama
Kengo Takeda
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP4379083A1 publication Critical patent/EP4379083A1/fr
Publication of EP4379083A4 publication Critical patent/EP4379083A4/fr
Pending legal-status Critical Current

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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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow 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
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and 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
    • 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
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    • 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
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    • 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
    • C21D8/0236—Cold rolling
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    • 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
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    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
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    • 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
    • C21D8/0273—Final recrystallisation annealing
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    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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  • Chemical & Material Sciences (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP22849577.6A 2021-07-28 2022-07-28 Tôle d'acier, et procédé de fabrication de celle-ci Pending EP4379083A4 (fr)

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US20190169707A1 (en) * 2013-12-27 2019-06-06 Nippon Steel & Sumitomo Metal Corporation Hot-pressed steel sheet member, method of manufacturing the same, and steel sheet for hot pressing
KR20210059746A (ko) * 2018-10-17 2021-05-25 제이에프이 스틸 가부시키가이샤 박강판 및 그의 제조 방법

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JP5860343B2 (ja) 2012-05-29 2016-02-16 株式会社神戸製鋼所 強度および延性のばらつきの小さい高強度冷延鋼板およびその製造方法
JP5858032B2 (ja) 2013-12-18 2016-02-10 Ｊｆｅスチール株式会社 高強度鋼板およびその製造方法
WO2016194272A1 (fr) 2015-05-29 2016-12-08 Ｊｆｅスチール株式会社 Tôle en acier laminée à froid hautement résistante, tôle en acier plaquée hautement résistante, et procédés de fabrication de celles-ci
KR102121415B1 (ko) 2016-04-14 2020-06-10 제이에프이 스틸 가부시키가이샤 고강도 강판 및 그의 제조 방법
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JP7438777B2 (ja) 2020-02-07 2024-02-27 キヤノン株式会社 制御方法、制御プログラム、記録媒体、ロボットシステム、および物品の製造方法

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US20190169707A1 (en) * 2013-12-27 2019-06-06 Nippon Steel & Sumitomo Metal Corporation Hot-pressed steel sheet member, method of manufacturing the same, and steel sheet for hot pressing
KR20210059746A (ko) * 2018-10-17 2021-05-25 제이에프이 스틸 가부시키가이샤 박강판 및 그의 제조 방법

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CN117751205A (zh) 2024-03-22
JPWO2023008516A1 (fr) 2023-02-02
WO2023008516A1 (fr) 2023-02-02
US20240327965A1 (en) 2024-10-03
JP7847592B2 (ja) 2026-04-17
EP4379083A1 (fr) 2024-06-05
KR20240025615A (ko) 2024-02-27
MX2024000890A (es) 2024-02-06

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