BR112012024297A2 - método de produção de chapa de aço - Google Patents

método de produção de chapa de aço

Info

Publication number
BR112012024297A2
BR112012024297A2 BR112012024297A BR112012024297A BR112012024297A2 BR 112012024297 A2 BR112012024297 A2 BR 112012024297A2 BR 112012024297 A BR112012024297 A BR 112012024297A BR 112012024297 A BR112012024297 A BR 112012024297A BR 112012024297 A2 BR112012024297 A2 BR 112012024297A2
Authority
BR
Brazil
Prior art keywords
steel
lamination
plate thickness
strand
predetermined condition
Prior art date
Application number
BR112012024297A
Other languages
English (en)
Other versions
BR112012024297B1 (pt
Inventor
Akihiko Kojima
Hiroyuki Shirahata
Ryuji Uemori
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 BR112012024297A2 publication Critical patent/BR112012024297A2/pt
Publication of BR112012024297B1 publication Critical patent/BR112012024297B1/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/059—Mould materials or platings
    • 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
    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • 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
    • 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
    • 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
    • C21D2211/004—Dispersions; Precipitations

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)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)

Abstract

método de produção de chapa de aço. um método de produção de uma chapa de aço que seja aplicável a um grande aço estrutural submetido à soldagem com alta entrada de calor, e que seja excelente na tenacidade do metal base e da zona afetada pelo calor, pela supressão do embrutecimento da estrutura de uma parte da superfície do metal base e da parte central da espessura da chapa da zona afetada pelo carlor, o método incluindo lingotamento, no qual taxa de resfriamento durante o resfriamento é 0,1<198> c/s ou mais em uma faixa de temperaturas de 1100<198> c a 1300<198> c na parte central da espessura da chapa, um strand que é um aço que satisfaz como composição química uma condição predeterminada tal como adições de c, mn, nb, ti, e n e que inclui tin com um diâmetro equivalente de círculo de 0,02 a 0,05 <109>m de 5,0x10^ 4^ peças/mm^ 2^ ou mais na parte central da espessura da chapa; aquecer o strand em uma condição predeterminada; executar a laminação de acabamento na qual a redução cumulativa da laminação é 40% ou mais a uma temperatura de ar~ 3~ até 880<198>c após a laminação de desbaste; e executar o resfriamento acelerado posterior no qual a taxa média de resfriamento da espessura da chapa é 5<198>c/s ou mais desde a temperatura ar~ 3~ ou mais até a temperatura de 550<198>c ou menos.
BR112012024297-0A 2010-05-27 2011-04-21 Método de produção de uma chapa de aço BR112012024297B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010121871 2010-05-27
JP2010-121871 2010-05-27
PCT/JP2011/060337 WO2011148754A1 (ja) 2010-05-27 2011-04-21 厚鋼板の製造方法

Publications (2)

Publication Number Publication Date
BR112012024297A2 true BR112012024297A2 (pt) 2016-05-24
BR112012024297B1 BR112012024297B1 (pt) 2019-02-12

Family

ID=45003746

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012024297-0A BR112012024297B1 (pt) 2010-05-27 2011-04-21 Método de produção de uma chapa de aço

Country Status (3)

Country Link
JP (1) JP4897126B2 (pt)
BR (1) BR112012024297B1 (pt)
WO (1) WO2011148754A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5796379B2 (ja) * 2011-07-11 2015-10-21 Ｊｆｅスチール株式会社 大入熱溶接熱影響部のｃｔｏｄ特性に優れる溶接構造用鋼およびその製造方法
WO2013099177A1 (ja) * 2011-12-27 2013-07-04 Ｊｆｅスチール株式会社 脆性き裂伝播停止特性に優れた構造用高強度厚鋼板およびその製造方法
JP6165088B2 (ja) * 2013-03-29 2017-07-19 株式会社神戸製鋼所 耐水素誘起割れ性と溶接熱影響部の靭性に優れた鋼板およびラインパイプ用鋼管
CN103627980B (zh) * 2013-11-25 2016-01-20 首钢总公司 低温大壁厚x80hd大变形管线钢及其生产方法
KR101758520B1 (ko) * 2015-12-23 2017-07-17 주식회사 포스코 열간 저항성이 우수한 고강도 구조용 강판 및 그 제조방법
KR102209581B1 (ko) * 2018-11-29 2021-01-28 주식회사 포스코 용접열영향부 인성이 우수한 강재 및 이의 제조방법
KR102237486B1 (ko) * 2019-10-01 2021-04-08 주식회사 포스코 중심부 극저온 변형시효충격인성이 우수한 고강도 극후물 강재 및 그 제조방법
JP7099653B1 (ja) * 2020-11-05 2022-07-12 Ｊｆｅスチール株式会社 鋼板およびその製造方法
KR20230041046A (ko) * 2020-11-05 2023-03-23 제이에프이 스틸 가부시키가이샤 강판 및 강판의 제조 방법
KR20230078073A (ko) * 2021-11-26 2023-06-02 주식회사 포스코 용접 열영향부 인성이 우수한 강재 및 그 제조방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6220821A (ja) * 1985-07-17 1987-01-29 Nippon Steel Corp 高強度厚鋼板の製造法
JPH0853734A (ja) * 1994-08-10 1996-02-27 Nippon Steel Corp 大入熱溶接熱影響部靭性の優れた溶接用鋼材の製造方法
JP2001288512A (ja) * 2000-04-05 2001-10-19 Nippon Steel Corp 靱性と延性に優れた高張力鋼の製造方法
JP5064150B2 (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

Also Published As

Publication number Publication date
WO2011148754A1 (ja) 2011-12-01
JP4897126B2 (ja) 2012-03-14
BR112012024297B1 (pt) 2019-02-12
JPWO2011148754A1 (ja) 2013-07-25

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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)

B07A Application suspended after technical examination (opinion) [chapter 7.1 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 21/04/2011, OBSERVADAS AS CONDICOES LEGAIS. (CO) 20 (VINTE) ANOS CONTADOS A PARTIR DE 21/04/2011, OBSERVADAS AS CONDICOES LEGAIS

B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL CORPORATION (JP)