BRPI0508533A - método para produção de trilhos de aço de alto carbono excelentes em resistência ao desgaste e ductilidade - Google Patents

método para produção de trilhos de aço de alto carbono excelentes em resistência ao desgaste e ductilidade

Info

Publication number
BRPI0508533A
BRPI0508533A BRPI0508533-0A BRPI0508533A BRPI0508533A BR PI0508533 A BRPI0508533 A BR PI0508533A BR PI0508533 A BRPI0508533 A BR PI0508533A BR PI0508533 A BRPI0508533 A BR PI0508533A
Authority
BR
Brazil
Prior art keywords
rail
steel
carbon content
rolling
carbon
Prior art date
Application number
BRPI0508533-0A
Other languages
English (en)
Inventor
Masaharu Ueda
Kazuo Fujita
Koichiro Matsushita
Takeshi Yamamoto
Takuya Satoh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34921734&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0508533(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of BRPI0508533A publication Critical patent/BRPI0508533A/pt
Publication of BRPI0508533B1 publication Critical patent/BRPI0508533B1/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/04—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/085—Rail sections
    • 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
    • C21D2211/009—Pearlite

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)
  • Metal Rolling (AREA)

Abstract

MéTODO PARA PRODUçãO DE TRILHOS DE AçO DE ALTO CARBONO EXCELENTES EM RESISTêNCIA AO DESGASTE E DUCTILIDADE. A presente invenção refere-se a métodos de produção de trilhos de aço tendo um alto teor de carbono e sendo excelentes em resistência ao desgaste e ductilidade a partir de placas para trilhos. Um método envolve a produção de um trilho de aço tendo um alto teor de carbono, compreendendo fazer a laminação de acabamento do trilho em dois passes consecutivos, com uma taxa de redução por passe de uma seção transversal do trilho de 2-30%, onde as condições da laminação de acabamento satisfazem a seguinte relação: S < 800 / (C x T), onde S é o tempo máximo de intervalo de laminação (segundos), C é o teor de carbono do aço, onde o teor de carbono é 0,85%-1,40% em massa, e T é a temperatura máxima da superfície ( C) do boleto do trilho. Um outro método envolve a produção de um trilho de aço com um alto teor de carbono, compreendendo: fazer a laminação de acabamento do trilho em três ou mais passes, com uma taxa de redução por passe de uma seção transversal do trilho de 2-30%, onde as condições da laminação de acabamento satisfazem a seguinte relação: S < 2400 / (C x T x P), onde S é o tempo máximo de intervalo de laminação (segundos), C é o teor de carbono do trilho de aço, onde o teor de carbono é 0,85-1,40% em massa, T é a temperatura máxima da superfície ( C) de um boleto de trilho, e P é o número de passes, que é de 3 ou mais. Em adição ao acima, quantidades adicionais controladas de V, Nb, N podem ser adicionadas ao trilho de aço e/ou o resfriamento rápido controlado do trilho após a laminação pode ser realizado para fornecer outras melhorias.
BRPI0508533-0B1A 2004-03-09 2005-03-09 Método para produção de trilhos de aço de alto carbono excelentes em resistência ao desgaste e ductilidade BRPI0508533B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004065676 2004-03-09
JP2004285934A JP4469248B2 (ja) 2004-03-09 2004-09-30 耐摩耗性および延性に優れた高炭素鋼レールの製造方法
PCT/JP2005/004582 WO2005085481A1 (en) 2004-03-09 2005-03-09 A method for producing high-carbon steel rails excellent in wear resistance and ductility

Publications (2)

Publication Number Publication Date
BRPI0508533A true BRPI0508533A (pt) 2007-08-14
BRPI0508533B1 BRPI0508533B1 (pt) 2013-10-08

Family

ID=34921734

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0508533-0B1A BRPI0508533B1 (pt) 2004-03-09 2005-03-09 Método para produção de trilhos de aço de alto carbono excelentes em resistência ao desgaste e ductilidade

Country Status (8)

Country Link
US (1) US20070181231A1 (pt)
EP (2) EP1730317B1 (pt)
JP (1) JP4469248B2 (pt)
AT (1) ATE435308T1 (pt)
BR (1) BRPI0508533B1 (pt)
CA (1) CA2558850C (pt)
DE (1) DE602005015199D1 (pt)
WO (1) WO2005085481A1 (pt)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5472418B2 (ja) * 2006-07-24 2014-04-16 新日鐵住金株式会社 耐摩耗性および延性に優れたパーライト系レールの製造方法
JP5145795B2 (ja) * 2006-07-24 2013-02-20 新日鐵住金株式会社 耐摩耗性および延性に優れたパーライト系レールの製造方法
US20100186857A1 (en) * 2007-10-10 2010-07-29 Jfe Steel Corporation Internal high hardness type pearlitic rail with excellent wear resistance, rolling contact fatigue resistance, and delayed fracture property and method for producing same
JP5053190B2 (ja) * 2008-07-10 2012-10-17 新日本製鐵株式会社 耐摩耗性および延性に優れたパーライト系レール
JP4757957B2 (ja) * 2008-10-31 2011-08-24 新日本製鐵株式会社 耐摩耗性および靭性に優れたパーライト系レール
CN102301023B (zh) * 2009-02-18 2013-07-10 新日铁住金株式会社 耐磨损性及韧性优异的珠光体系钢轨
BRPI1011986A2 (pt) 2009-06-26 2016-04-26 Nippon Steel Corp trilho de aço com alto teor de carbono com base em perlita tendo excelente ductilidade e processo para a produção deste
CA2744992C (en) * 2009-08-18 2014-02-11 Nippon Steel Corporation Pearlite rail
US8241442B2 (en) * 2009-12-14 2012-08-14 Arcelormittal Investigacion Y Desarrollo, S.L. Method of making a hypereutectoid, head-hardened steel rail
DE102010016282A1 (de) * 2010-03-31 2011-10-06 Max-Planck-Institut Für Eisenforschung GmbH Ultrahochfeste und verschleißresistente quasieutektoide Schienenstähle
KR101421368B1 (ko) * 2010-06-07 2014-07-24 신닛테츠스미킨 카부시키카이샤 강 레일 및 그 제조 방법
BR112013023633A2 (pt) * 2011-03-18 2016-12-13 Nippon Steel & Sumitomo Metal Corp chapa de aço laminada a quente com excelente capacidade de conformação por prensagem e seu método de produção
DE102012020844A1 (de) 2012-10-24 2014-04-24 Thyssenkrupp Gft Gleistechnik Gmbh Verfahren zur thermomechanischen Behandlung von warmgewalzten Profilen
CN102936697A (zh) * 2012-11-09 2013-02-20 宁波市鄞州商业精密铸造有限公司 一种高耐磨性铁合金材料制备方法
CN102899585A (zh) * 2012-11-09 2013-01-30 宁波市鄞州商业精密铸造有限公司 一种高硬度高耐磨性铁合金材料
CN102936696A (zh) * 2012-11-09 2013-02-20 宁波市鄞州商业精密铸造有限公司 一种高硬度高耐磨性铁合金材料及制备方法
CN102899586A (zh) * 2012-11-09 2013-01-30 宁波市鄞州商业精密铸造有限公司 一种铁合金材料及制备方法
US9670570B2 (en) * 2014-04-17 2017-06-06 Evraz Inc. Na Canada High carbon steel rail with enhanced ductility
CA2962031C (en) * 2014-09-22 2019-05-14 Jfe Steel Corporation Rail manufacturing method and rail manufacturing apparatus
CN106086663B (zh) * 2016-07-14 2018-03-06 攀钢集团攀枝花钢铁研究院有限公司 一种过共析钢轨及其制备方法
JP6787426B2 (ja) * 2019-03-19 2020-11-18 Ｊｆｅスチール株式会社 レールの製造方法
KR102239184B1 (ko) * 2019-09-04 2021-04-12 주식회사 포스코 강도 및 저온 충격인성이 우수한 강재 및 이의 제조방법
CN113637914A (zh) * 2021-08-18 2021-11-12 攀钢集团攀枝花钢铁研究院有限公司 一种高强韧性钢轨及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3113137B2 (ja) 1993-12-20 2000-11-27 新日本製鐵株式会社 パーライト金属組織を呈した高靭性レールの製造法
EP0685566B2 (en) * 1993-12-20 2013-06-05 Nippon Steel & Sumitomo Metal Corporation Rail of high abrasion resistance and high tenacity having pearlite metallographic structure and method of manufacturing the same
AT407057B (de) * 1996-12-19 2000-12-27 Voest Alpine Schienen Gmbh Profiliertes walzgut und verfahren zu dessen herstellung
JP2001234238A (ja) 2000-02-18 2001-08-28 Nippon Steel Corp 高耐摩耗・高靭性レールの製造方法
JP2002226915A (ja) 2001-02-01 2002-08-14 Nippon Steel Corp 高耐摩耗・高靭性レールの製造方法
US20040187981A1 (en) * 2002-04-05 2004-09-30 Masaharu Ueda Pealite base rail excellent in wear resistance and ductility and method for production thereof

Also Published As

Publication number Publication date
EP1730317B1 (en) 2009-07-01
CA2558850C (en) 2014-02-18
EP1730317A1 (en) 2006-12-13
JP2005290544A (ja) 2005-10-20
EP2071044A1 (en) 2009-06-17
JP4469248B2 (ja) 2010-05-26
ATE435308T1 (de) 2009-07-15
BRPI0508533B1 (pt) 2013-10-08
WO2005085481A1 (en) 2005-09-15
DE602005015199D1 (de) 2009-08-13
CA2558850A1 (en) 2005-09-15
US20070181231A1 (en) 2007-08-09

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B25G Requested change of headquarter approved

Owner name: NIPPON STEEL 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 09/03/2005, OBSERVADAS AS CONDICOES LEGAIS.

B25D Requested change of name of applicant approved
B25D Requested change of name of applicant approved
B25K Entry of change of name and/or headquarter and transfer of application, patent and certificate of addition of invention: republication

Free format text: RETIFICADO O DESPACHO 25.4 PUBLICADO NA RPI 2543 DE 01/10/2019. ONDE SE LE: ?(?), SENDO ESTA PUBLICADA NA RPI NO 2542, DE 24/09/2019? LEIA-SE: ?(?), SENDO ESTA PUBLICADA NA RPI NO 2543, DE 01/10/2019?

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

Free format text: REFERENTE A 17A 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 2661 DE 04-01-2022 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.