JP7468814B1 - 高強度極厚鋼板およびその製造方法 - Google Patents

高強度極厚鋼板およびその製造方法 Download PDF

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Publication number
JP7468814B1
JP7468814B1 JP2023573540A JP2023573540A JP7468814B1 JP 7468814 B1 JP7468814 B1 JP 7468814B1 JP 2023573540 A JP2023573540 A JP 2023573540A JP 2023573540 A JP2023573540 A JP 2023573540A JP 7468814 B1 JP7468814 B1 JP 7468814B1
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Japan
Prior art keywords
less
plate thickness
thickness
strength
rolling
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JP2023573540A
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English (en)
Japanese (ja)
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JPWO2024105967A5 (https=
JPWO2024105967A1 (https=
Inventor
智久 矢野
直樹 ▲高▼山
俊一 橘
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JFE Steel Corp
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JFE Steel Corp
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Priority claimed from PCT/JP2023/031503 external-priority patent/WO2024105967A1/ja
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    • 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
    • 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
    • C21D8/0247—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
    • 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
    • C22C38/02—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
    • 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
    • C21D2211/005—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 Steel (AREA)
JP2023573540A 2022-11-14 2023-08-30 高強度極厚鋼板およびその製造方法 Active JP7468814B1 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022181478 2022-11-14
JP2022181478 2022-11-14
PCT/JP2023/031503 WO2024105967A1 (ja) 2022-11-14 2023-08-30 高強度極厚鋼板およびその製造方法

Publications (3)

Publication Number Publication Date
JP7468814B1 true JP7468814B1 (ja) 2024-04-16
JPWO2024105967A1 JPWO2024105967A1 (https=) 2024-05-23
JPWO2024105967A5 JPWO2024105967A5 (https=) 2024-10-16

Family

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Family Applications (1)

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JP2023573540A Active JP7468814B1 (ja) 2022-11-14 2023-08-30 高強度極厚鋼板およびその製造方法

Country Status (3)

Country Link
JP (1) JP7468814B1 (https=)
KR (1) KR20250034987A (https=)
CN (1) CN119630827A (https=)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017047088A1 (ja) * 2015-09-18 2017-03-23 Ｊｆｅスチール株式会社 構造用高強度厚鋼板およびその製造方法
JP2017186614A (ja) * 2016-04-06 2017-10-12 新日鐵住金株式会社 厚鋼板およびその製造方法
WO2020262638A1 (ja) * 2019-06-27 2020-12-30 日本製鉄株式会社 鋼材及びその製造方法
WO2022097589A1 (ja) * 2020-11-05 2022-05-12 Ｊｆｅスチール株式会社 鋼板およびその製造方法
KR20230094389A (ko) * 2021-12-21 2023-06-28 주식회사 포스코 강도 및 저온 충격인성이 우수한 플랜지용 극후물 강재 및 그 제조방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4077167B2 (ja) 2001-02-28 2008-04-16 株式会社神戸製鋼所 アレスト特性に優れた鋼板およびその製法
JP5064149B2 (ja) 2006-12-14 2012-10-31 新日本製鐵株式会社 脆性き裂伝播停止性能に優れた高強度厚鋼板及びその製造方法
BR112012019769B1 (pt) 2010-02-08 2018-05-02 Nippon Steel & Sumitomo Metal Corporation Método de produção de placa de aço.
JP5759109B2 (ja) 2010-03-09 2015-08-05 株式会社神戸製鋼所 脆性亀裂伝播停止特性に優れた鋼材、およびその製造方法
JP5522084B2 (ja) 2011-02-24 2014-06-18 新日鐵住金株式会社 厚鋼板の製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017047088A1 (ja) * 2015-09-18 2017-03-23 Ｊｆｅスチール株式会社 構造用高強度厚鋼板およびその製造方法
JP2017186614A (ja) * 2016-04-06 2017-10-12 新日鐵住金株式会社 厚鋼板およびその製造方法
WO2020262638A1 (ja) * 2019-06-27 2020-12-30 日本製鉄株式会社 鋼材及びその製造方法
WO2022097589A1 (ja) * 2020-11-05 2022-05-12 Ｊｆｅスチール株式会社 鋼板およびその製造方法
KR20230094389A (ko) * 2021-12-21 2023-06-28 주식회사 포스코 강도 및 저온 충격인성이 우수한 플랜지용 극후물 강재 및 그 제조방법

Also Published As

Publication number Publication date
JPWO2024105967A1 (https=) 2024-05-23
CN119630827A (zh) 2025-03-14
KR20250034987A (ko) 2025-03-11

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