BR112012020436A2 - método de produção de chapa de aço. - Google Patents

método de produção de chapa de aço.

Info

Publication number
BR112012020436A2
BR112012020436A2 BR112012020436A BR112012020436A BR112012020436A2 BR 112012020436 A2 BR112012020436 A2 BR 112012020436A2 BR 112012020436 A BR112012020436 A BR 112012020436A BR 112012020436 A BR112012020436 A BR 112012020436A BR 112012020436 A2 BR112012020436 A2 BR 112012020436A2
Authority
BR
Brazil
Prior art keywords
production method
passes
rolling
cooling
steel plate
Prior art date
Application number
BR112012020436A
Other languages
English (en)
Other versions
BR112012020436B1 (pt
Inventor
Nakashima Kiyotaka
Hoshino Manabu
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 BR112012020436A2 publication Critical patent/BR112012020436A2/pt
Publication of BR112012020436B1 publication Critical patent/BR112012020436B1/pt

Links

Classifications

    • 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
    • C21D8/0226—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 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
    • C21D8/0247—Modifying the physical properties 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 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/42—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for armour plate
    • 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
    • C22C38/04—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
    • C22C38/12—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
    • 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
    • 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
    • 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
    • C21D2211/008—Martensite

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)

Abstract

patente de invenção: método de produção de chapa de aço. a presente invenção refere-se a um método de produção de chapa de aço caracterizado pelo aquecimento de uma placa de aço que tenha uma composição química predeterminada até 1000 a 1200<198>c, então laminando pela laminação da primeira etapa a uma temperatura do centro da espessura da chapa de 950 a 1200<198>c, uma redução cumulativa na laminação de 50 a 95%, e um número de passes de 4 a 16 passes, e então laminando pela segunda etapa de laminação em cada passe de 10 a 25%, e um tempo entre passes de 3 a 25 segundos, então resfriar pelo resfriamento da primeira etapa a partir de uma temperatura do centro da espessura da chapa de 750<198>c ou mais a uma taxa de resfriamento desce de 0,5 a 8<198>c/s até 630 a 700<198>c, então resfriar pelo resfriamento da segunda etapa a uma taxa de resfriamento de 10 a 50<198>c/s até uma temperatura de 550<198>c ou menos de modo a obter uma chapa de aço que tenha uma espessura de chapa de 10 a 40 mm, um limite de escoamento de 315 a 550 mpa, uma microestrutura de uma microestrutura mista de uma ou mais dentre fase macia ferrita e fase dura perlita, bainita e martensita, a porcentagem de ferrita na parte central da espessura da chapa de 70 a 95% uma dureza vicker<39>s média das fases duras de 250 a 500, e um tamanho médio de grão de 5 a 20 <109>m.
BR112012020436-0A 2010-02-15 2011-01-27 Método de produção de chapa de aço. BR112012020436B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010-029608 2010-02-15
JP2010029608 2010-02-15
PCT/JP2011/052188 WO2011099408A1 (ja) 2010-02-15 2011-01-27 厚鋼板の製造方法

Publications (2)

Publication Number Publication Date
BR112012020436A2 true BR112012020436A2 (pt) 2017-12-12
BR112012020436B1 BR112012020436B1 (pt) 2019-04-30

Family

ID=44367684

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012020436-0A BR112012020436B1 (pt) 2010-02-15 2011-01-27 Método de produção de chapa de aço.

Country Status (4)

Country Link
JP (1) JP4874434B1 (pt)
CN (1) CN102666885B (pt)
BR (1) BR112012020436B1 (pt)
WO (1) WO2011099408A1 (pt)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5177310B2 (ja) * 2011-02-15 2013-04-03 Ｊｆｅスチール株式会社 溶接熱影響部の低温靭性に優れた高張力鋼板およびその製造方法
CA2832021C (en) * 2011-08-23 2014-11-18 Nippon Steel & Sumitomo Metal Corporation Thick wall electric resistance welded steel pipe and method of production of same
EP2799567B1 (en) * 2011-12-28 2019-07-03 Nippon Steel Corporation High-strength steel plate and high-strength steel pipe excellent in deformability and low-temperature toughness, and manufacturing method of the steel plate
JP5742750B2 (ja) * 2012-02-28 2015-07-01 新日鐵住金株式会社 厚鋼板及びその製造方法
JP5811032B2 (ja) * 2012-05-23 2015-11-11 新日鐵住金株式会社 Ｌｐｇタンク用鋼板
JP5567747B2 (ja) * 2012-07-26 2014-08-06 Ｊｆｅスチール株式会社 軟窒化用鋼および軟窒化部品ならびにこれらの製造方法
JP5910400B2 (ja) * 2012-08-03 2016-04-27 Ｊｆｅスチール株式会社 非調質低降伏比高張力厚鋼板およびその製造方法
US10041159B2 (en) 2013-02-28 2018-08-07 Jfe Steel Corporation Thick steel plate and production method for thick steel plate
JP6028863B2 (ja) * 2013-07-04 2016-11-24 新日鐵住金株式会社 サワー環境で使用されるラインパイプ用継目無鋼管
WO2015075771A1 (ja) * 2013-11-19 2015-05-28 新日鐵住金株式会社 鋼板
JP5713135B1 (ja) * 2013-11-19 2015-05-07 新日鐵住金株式会社 鋼板
JP6280824B2 (ja) * 2014-06-20 2018-02-14 株式会社神戸製鋼所 高強度鋼板およびその製造方法
JP6735082B2 (ja) * 2015-11-06 2020-08-05 株式会社神戸製鋼所 鋼部材および鋼板ならびにこれらの製造方法
EP3205443A1 (de) * 2016-02-09 2017-08-16 Siemens Aktiengesellschaft Verfahren zum herstellen eines zahnrades, zahnrad, getriebeverdichter
JP6772825B2 (ja) * 2016-12-26 2020-10-21 日本製鉄株式会社 ラインパイプ用鋼材及びその製造方法
KR101998991B1 (ko) * 2017-12-15 2019-07-10 주식회사 포스코 인장강도 및 저온충격인성이 우수한 압력용기용 강판 및 그 제조방법
AU2019384752A1 (en) * 2018-11-21 2021-05-13 Jfe Steel Corporation Steel sheet for cans and method for manufacturing same
PL3719148T3 (pl) * 2019-04-05 2023-05-08 Ssab Technology Ab Wyrób stalowy o wysokiej twardości i sposób jego wytwarzania
CN110358970B (zh) * 2019-06-20 2021-01-12 天津大学 屈服强度1100MPa级的焊接结构贝氏体高强钢及其制备方法
KR102296840B1 (ko) 2019-12-16 2021-09-01 주식회사 포스코 연성이 우수한 고강도 강재 및 그 제조방법
CN115349027B (zh) * 2020-08-31 2023-08-04 日本制铁株式会社 钢板及其制造方法
EP4180544A1 (en) * 2021-11-11 2023-05-17 SSAB Technology AB A hot-rolled steel strip product and method for its production

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2633744B2 (ja) * 1991-05-09 1997-07-23 新日本製鐵株式会社 結晶粒径の微細な厚鋼板の製造法
JP3699670B2 (ja) * 2001-10-18 2005-09-28 新日本製鐵株式会社 低温靱性に優れた高強度鋼板の製造方法
JP2004143500A (ja) * 2002-10-23 2004-05-20 Nippon Steel Corp 耐座屈特性に優れた高強度鋼管およびその製造方法
JP2004269924A (ja) * 2003-03-06 2004-09-30 Nippon Steel Corp 強度・靭性に優れた鋼板の高効率製造方法
JP4311058B2 (ja) * 2003-03-25 2009-08-12 Ｊｆｅスチール株式会社 厚鋼板の圧延方法
JP4358021B2 (ja) * 2004-04-22 2009-11-04 日本組織電気株式会社 トンネル照明システム及びトンネル照明器具
JP5223379B2 (ja) * 2007-03-08 2013-06-26 新日鐵住金株式会社 低温靭性に優れるスパイラルパイプ用高強度熱延鋼板およびその製造方法
CN101368251B (zh) * 2008-09-28 2010-11-17 舞阳钢铁有限责任公司 一种大厚度临氢设备用钢板及其生产工艺

Also Published As

Publication number Publication date
CN102666885B (zh) 2013-08-07
CN102666885A (zh) 2012-09-12
BR112012020436B1 (pt) 2019-04-30
JP4874434B1 (ja) 2012-02-15
JPWO2011099408A1 (ja) 2013-06-13
WO2011099408A1 (ja) 2011-08-18

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL AND SUMITOMO METAL CORPORATION (JP)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/01/2011, OBSERVADAS AS CONDICOES LEGAIS. (CO) 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/01/2011, OBSERVADAS AS CONDICOES LEGAIS

B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL CORPORATION (JP)

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 12A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2707 DE 22-11-2022 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.