TWI412609B - 高強度鋼板及其製造方法 - Google Patents

高強度鋼板及其製造方法 Download PDF

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Publication number
TWI412609B
TWI412609B TW098130498A TW98130498A TWI412609B TW I412609 B TWI412609 B TW I412609B TW 098130498 A TW098130498 A TW 098130498A TW 98130498 A TW98130498 A TW 98130498A TW I412609 B TWI412609 B TW I412609B
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TW
Taiwan
Prior art keywords
less
iron
steel sheet
amount
seconds
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TW098130498A
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English (en)
Chinese (zh)
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TW201020329A (en
Inventor
Hiroshi Matsuda
Yoshimasa Funakawa
Yasushi Tanaka
Original Assignee
Jfe Steel Corp
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=42005270&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=TWI412609(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of TW201020329A publication Critical patent/TW201020329A/zh
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/19Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20Isothermal quenching, e.g. bainitic hardening
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C21D9/48Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/005Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/001Austenite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/002Bainite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/008Martensite

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 Sheet Steel (AREA)
  • Coating With Molten Metal (AREA)
TW098130498A 2008-09-10 2009-09-10 高強度鋼板及其製造方法 TWI412609B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008232437A JP5365112B2 (ja) 2008-09-10 2008-09-10 高強度鋼板およびその製造方法

Publications (2)

Publication Number Publication Date
TW201020329A TW201020329A (en) 2010-06-01
TWI412609B true TWI412609B (zh) 2013-10-21

Family

ID=42005270

Family Applications (1)

Application Number Title Priority Date Filing Date
TW098130498A TWI412609B (zh) 2008-09-10 2009-09-10 高強度鋼板及其製造方法

Country Status (8)

Country Link
US (1) US20110162762A1 (ko)
EP (1) EP2327810B1 (ko)
JP (1) JP5365112B2 (ko)
KR (1) KR101341731B1 (ko)
CN (1) CN102149841B (ko)
CA (1) CA2734978C (ko)
TW (1) TWI412609B (ko)
WO (1) WO2010030021A1 (ko)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5883211B2 (ja) * 2010-01-29 2016-03-09 株式会社神戸製鋼所 加工性に優れた高強度冷延鋼板およびその製造方法
JP5333298B2 (ja) * 2010-03-09 2013-11-06 Jfeスチール株式会社 高強度鋼板の製造方法
JP5671359B2 (ja) * 2010-03-24 2015-02-18 株式会社神戸製鋼所 温間加工性に優れた高強度鋼板
JP5825481B2 (ja) * 2010-11-05 2015-12-02 Jfeスチール株式会社 深絞り性および焼付硬化性に優れる高強度冷延鋼板とその製造方法
JP5662902B2 (ja) 2010-11-18 2015-02-04 株式会社神戸製鋼所 成形性に優れた高強度鋼板、温間加工方法、および温間加工された自動車部品
JP5662903B2 (ja) * 2010-11-18 2015-02-04 株式会社神戸製鋼所 成形性に優れた高強度鋼板、温間加工方法、および温間加工された自動車部品
JP5906753B2 (ja) * 2011-02-24 2016-04-20 Jfeスチール株式会社 合金化溶融亜鉛めっき鋼板
CN104762565B (zh) * 2011-03-31 2017-04-12 株式会社神户制钢所 加工性优异的高强度钢板及其制造方法
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
JP5824283B2 (ja) * 2011-08-17 2015-11-25 株式会社神戸製鋼所 室温および温間での成形性に優れた高強度鋼板
JP6047983B2 (ja) * 2011-08-19 2016-12-21 Jfeスチール株式会社 伸びおよび伸びフランジ性に優れる高強度冷延鋼板の製造方法
TWI507535B (zh) * 2011-09-30 2015-11-11 Nippon Steel & Sumitomo Metal Corp Alloyed molten galvanized steel sheet
CA2850094C (en) 2011-09-30 2015-10-13 Nippon Steel & Sumitomo Metal Corporation High-strength hot-dip galvanized steel sheet
EP2765212B1 (en) * 2011-10-04 2017-05-17 JFE Steel Corporation High-strength steel sheet and method for manufacturing same
JP5860308B2 (ja) * 2012-02-29 2016-02-16 株式会社神戸製鋼所 温間成形性に優れた高強度鋼板およびその製造方法
JP5348268B2 (ja) 2012-03-07 2013-11-20 Jfeスチール株式会社 成形性に優れる高強度冷延鋼板およびその製造方法
JP6228741B2 (ja) * 2012-03-27 2017-11-08 株式会社神戸製鋼所 板幅方向における中央部と端部の強度差が少なく、曲げ加工性に優れた高強度溶融亜鉛めっき鋼板、高強度合金化溶融亜鉛めっき鋼板、およびこれらの製造方法
JP5764549B2 (ja) 2012-03-29 2015-08-19 株式会社神戸製鋼所 成形性および形状凍結性に優れた、高強度冷延鋼板、高強度溶融亜鉛めっき鋼板および高強度合金化溶融亜鉛めっき鋼板、ならびにそれらの製造方法
CN104245971B (zh) * 2012-03-30 2017-09-12 奥钢联钢铁有限责任公司 高强度冷轧钢板和生产该钢板的方法
JP5966598B2 (ja) * 2012-05-17 2016-08-10 Jfeスチール株式会社 加工性に優れる高降伏比高強度冷延鋼板およびその製造方法
KR101412262B1 (ko) * 2012-06-19 2014-06-27 현대제철 주식회사 굽힘성과 성형성이 우수한 자동차용 고강도 냉연강판 제조 방법
EP2690183B1 (de) * 2012-07-27 2017-06-28 ThyssenKrupp Steel Europe AG Warmgewalztes Stahlflachprodukt und Verfahren zu seiner Herstellung
EP2690184B1 (de) * 2012-07-27 2020-09-02 ThyssenKrupp Steel Europe AG Kaltgewalztes Stahlflachprodukt und Verfahren zu seiner Herstellung
KR101661074B1 (ko) * 2012-08-06 2016-09-28 신닛테츠스미킨 카부시키카이샤 냉연 강판 및 그 제조 방법, 및 핫 스탬프 성형체
AT512792B1 (de) * 2012-09-11 2013-11-15 Voestalpine Schienen Gmbh Verfahren zur Herstellung von bainitischen Schienenstählen
CN102904297A (zh) * 2012-09-11 2013-01-30 苏州市莱赛电车技术有限公司 一种电动汽车顶部充电的装置
JP5862591B2 (ja) * 2013-03-28 2016-02-16 Jfeスチール株式会社 高強度鋼板およびその製造方法
EP2840159B8 (de) 2013-08-22 2017-07-19 ThyssenKrupp Steel Europe AG Verfahren zum Herstellen eines Stahlbauteils
WO2016001703A1 (en) 2014-07-03 2016-01-07 Arcelormittal Method for manufacturing a high strength steel sheet and sheet obtained by the method
WO2016001705A1 (en) * 2014-07-03 2016-01-07 Arcelormittal Method for manufacturing a high strength steel sheet having improved formability and ductility and sheet obtained
WO2016001708A1 (en) 2014-07-03 2016-01-07 Arcelormittal Method for producing a high strength coated steel sheet having improved strength, formability and obtained sheet
JP6282577B2 (ja) * 2014-11-26 2018-02-21 株式会社神戸製鋼所 高強度高延性鋼板
KR101695261B1 (ko) * 2014-12-30 2017-01-12 한국기계연구원 강도와 연성의 조합이 우수한 고강도 강판, 그 제조 방법
WO2016108443A1 (ko) 2014-12-30 2016-07-07 한국기계연구원 강도와 연성의 조합이 우수한 고강도 강판, 및 그 제조 방법
KR101695263B1 (ko) * 2014-12-30 2017-01-12 한국기계연구원 생산성, 강도와 연성의 조합이 우수한 고강도 강판, 그 제조 방법
EP3298175B1 (en) * 2015-05-21 2020-08-26 Ak Steel Properties, Inc. High manganese third generation advanced high strength steels
CN107636184A (zh) * 2015-06-11 2018-01-26 新日铁住金株式会社 合金化热浸镀锌钢板及其制造方法
JP2016065319A (ja) * 2015-11-30 2016-04-28 Jfeスチール株式会社 高強度鋼板の表面性状の評価方法および高強度鋼板の製造方法
WO2017109539A1 (en) 2015-12-21 2017-06-29 Arcelormittal Method for producing a high strength steel sheet having improved strength and formability, and obtained high strength steel sheet
CN105543630B (zh) * 2015-12-21 2017-08-25 秦皇岛首秦金属材料有限公司 一种含硼高碳锯片用钢及其制造方法
KR101877787B1 (ko) * 2015-12-28 2018-07-16 한국기계연구원 연신율이 우수한 고강도 강판 및 그 제조 방법
EP3415656B1 (en) * 2016-02-10 2020-12-23 JFE Steel Corporation High-strength steel sheet and method for manufacturing same
KR102119332B1 (ko) * 2016-02-10 2020-06-04 제이에프이 스틸 가부시키가이샤 고강도 강판 및 그 제조 방법
CN106119703B (zh) 2016-06-21 2018-01-30 宝山钢铁股份有限公司 一种980MPa级热轧双相钢及其制造方法
KR102035525B1 (ko) * 2016-06-27 2019-10-24 한국기계연구원 필름형 잔류 오스테나이트를 포함하는 강재
WO2018043456A1 (ja) 2016-08-31 2018-03-08 Jfeスチール株式会社 高強度冷延薄鋼板及びその製造方法
RU2020116368A (ru) * 2017-11-15 2021-12-15 Ниппон Стил Корпорейшн Высокопрочный холоднокатаный стальной лист
EP3749790B1 (en) 2018-02-07 2024-06-26 Tata Steel Nederland Technology B.V. High strength hot rolled or cold rolled and annealed steel and method of producing it
JP6737419B1 (ja) * 2018-10-17 2020-08-12 Jfeスチール株式会社 薄鋼板およびその製造方法
KR102276740B1 (ko) * 2018-12-18 2021-07-13 주식회사 포스코 연성 및 가공성이 우수한 고강도 강판 및 그 제조방법
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MX2021009365A (es) * 2019-02-06 2021-09-10 Nippon Steel Corp Lamina de acero galvanizada por inmersion en caliente y metodo para producir la misma.
EP3754034B1 (en) * 2019-06-17 2022-03-02 Tata Steel IJmuiden B.V. Heat treatment of cold rolled steel strip
PT3754037T (pt) * 2019-06-17 2022-04-19 Tata Steel Ijmuiden Bv Método de tratamento térmico de uma tira de aço laminada a frio de alta resistência
PT3754035T (pt) * 2019-06-17 2022-04-21 Tata Steel Ijmuiden Bv Método de tratamento térmico de uma tira de aço laminada a frio
PT3754036T (pt) * 2019-06-17 2022-04-20 Tata Steel Ijmuiden Bv Tratamento térmico de tira de aço laminada a frio de alta resistência
WO2021079753A1 (ja) * 2019-10-23 2021-04-29 Jfeスチール株式会社 高強度鋼板およびその製造方法
EP4079883A4 (en) * 2020-02-28 2023-05-24 JFE Steel Corporation STEEL SHEET, ELEMENT AND METHOD OF MAKING SUCH STEEL SHEET AND ELEMENT
KR20220150400A (ko) * 2020-05-11 2022-11-10 제이에프이 스틸 가부시키가이샤 강판, 부재 및 그들의 제조 방법
KR102398151B1 (ko) * 2020-09-07 2022-05-16 주식회사 포스코 연성이 우수한 초고강도 강판의 제조방법 및 이를 이용하여 제조된 초고강도 강판
CN116897217A (zh) * 2021-03-02 2023-10-17 杰富意钢铁株式会社 钢板、构件和它们的制造方法
KR20240003211A (ko) * 2022-06-30 2024-01-08 현대제철 주식회사 냉연 강판 및 그 제조방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10259466A (ja) * 1997-03-21 1998-09-29 Nippon Steel Corp 合金化溶融Znめっき鋼板の製造方法
JP2004076114A (ja) * 2002-08-20 2004-03-11 Kobe Steel Ltd 焼付硬化性に優れた複合組織鋼板
CN1639376A (zh) * 2002-03-01 2005-07-13 杰富意钢铁株式会社 表面处理钢板及其制造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3020617B2 (ja) 1990-12-28 2000-03-15 川崎製鉄株式会社 曲げ加工性、衝撃特性の良好な超強度冷延鋼板及びその製造方法
JP3401427B2 (ja) 1998-03-12 2003-04-28 株式会社神戸製鋼所 耐衝撃性に優れた高強度鋼板
CN1107122C (zh) * 2000-02-29 2003-04-30 济南济钢设计院 奥贝马钢及其制备方法
JP3854506B2 (ja) * 2001-12-27 2006-12-06 新日本製鐵株式会社 溶接性、穴拡げ性および延性に優れた高強度鋼板およびその製造方法
JP4068950B2 (ja) * 2002-12-06 2008-03-26 株式会社神戸製鋼所 温間加工による伸び及び伸びフランジ性に優れた高強度鋼板、温間加工方法、及び温間加工された高強度部材または高強度部品
JP4412727B2 (ja) * 2004-01-09 2010-02-10 株式会社神戸製鋼所 耐水素脆化特性に優れた超高強度鋼板及びその製造方法
US20050150580A1 (en) * 2004-01-09 2005-07-14 Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.) Ultra-high strength steel sheet having excellent hydrogen embrittlement resistance, and method for manufacturing the same
EP2053140B1 (en) * 2006-07-14 2013-12-04 Kabushiki Kaisha Kobe Seiko Sho High-strength steel sheets and processes for production of the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10259466A (ja) * 1997-03-21 1998-09-29 Nippon Steel Corp 合金化溶融Znめっき鋼板の製造方法
CN1639376A (zh) * 2002-03-01 2005-07-13 杰富意钢铁株式会社 表面处理钢板及其制造方法
JP2004076114A (ja) * 2002-08-20 2004-03-11 Kobe Steel Ltd 焼付硬化性に優れた複合組織鋼板

Also Published As

Publication number Publication date
EP2327810A4 (en) 2013-11-20
CN102149841B (zh) 2013-11-20
EP2327810B1 (en) 2019-02-27
KR20110042369A (ko) 2011-04-26
CA2734978A1 (en) 2010-03-18
WO2010030021A1 (ja) 2010-03-18
TW201020329A (en) 2010-06-01
EP2327810A1 (en) 2011-06-01
CA2734978C (en) 2016-03-29
JP5365112B2 (ja) 2013-12-11
JP2010065273A (ja) 2010-03-25
KR101341731B1 (ko) 2013-12-16
US20110162762A1 (en) 2011-07-07
CN102149841A (zh) 2011-08-10

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