BR112017002702A2 - método de fabricação de trilho de cabeça endurecida e aparelho de fabricação - Google Patents

método de fabricação de trilho de cabeça endurecida e aparelho de fabricação

Info

Publication number
BR112017002702A2
BR112017002702A2 BR112017002702A BR112017002702A BR112017002702A2 BR 112017002702 A2 BR112017002702 A2 BR 112017002702A2 BR 112017002702 A BR112017002702 A BR 112017002702A BR 112017002702 A BR112017002702 A BR 112017002702A BR 112017002702 A2 BR112017002702 A2 BR 112017002702A2
Authority
BR
Brazil
Prior art keywords
manufacturing
rail
forced cooling
head rail
present
Prior art date
Application number
BR112017002702A
Other languages
English (en)
Other versions
BR112017002702B1 (pt
Inventor
Kijima Hideo
Fukuda Hiroyuki
Okushiro Kenji
Original Assignee
Jfe 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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of BR112017002702A2 publication Critical patent/BR112017002702A2/pt
Publication of BR112017002702B1 publication Critical patent/BR112017002702B1/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
    • C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
    • 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
    • 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
    • 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00—Rails; Guard rails; Distance-keeping means for them
    • E01B5/02—Rails
    • 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)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

a presente invenção refere-se a um método de fabricação e a um aparelho de fabricação para um trilho de tratamento térmico ao qual vários tipos de elementos de liga são adicionados e que tem excelente dureza e tenacidade de camada de superfície de cabeça. durante o resfriamento forçado de um trilho laminado a quente (1) ou de pelo menos uma seção de cabeça de um trilho aquecido (1), a presente invenção inicia o resfriamento forçado a partir de quando a temperatura de superfície da seção de cabeça (1a) do trilho (1) se encontra pelo menos na temperatura de região de austenita e, após iniciar o resfriamento forçado, realiza o resfriamento forçado a uma taxa de resfriamento de pelo menos 10°c/segundo até que a temperatura de superfície seja de 500°c a 700°c.
BR112017002702-0A 2014-08-20 2015-08-19 Método de fabricação de um trilho de tratamento térmico BR112017002702B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2014167432 2014-08-20
JP2014-167432 2014-08-20
PCT/JP2015/004135 WO2016027467A1 (ja) 2014-08-20 2015-08-19 熱処理レールの製造方法および製造装置

Publications (2)

Publication Number Publication Date
BR112017002702A2 true BR112017002702A2 (pt) 2017-12-19
BR112017002702B1 BR112017002702B1 (pt) 2021-09-08

Family

ID=55350429

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017002702-0A BR112017002702B1 (pt) 2014-08-20 2015-08-19 Método de fabricação de um trilho de tratamento térmico

Country Status (7)

Country Link
US (1) US10472693B2 (pt)
EP (1) EP3184654B1 (pt)
JP (1) JP6265267B2 (pt)
CN (1) CN106661651B (pt)
AU (1) AU2015304699B2 (pt)
BR (1) BR112017002702B1 (pt)
WO (1) WO2016027467A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015182743A1 (ja) * 2014-05-29 2015-12-03 新日鐵住金株式会社 レールおよびその製造方法
CN107236846A (zh) * 2017-07-21 2017-10-10 河钢股份有限公司邯郸分公司 重轨钢r350lht全长余热淬火的热处理方法
CN107739806B (zh) * 2017-10-10 2019-10-11 攀钢集团研究院有限公司 高韧塑性过共析钢轨及其制造方法
JP7453108B2 (ja) 2020-09-18 2024-03-19 株式会社Ｓｃｒｅｅｎホールディングス 乾燥装置および乾燥方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818966B2 (ja) * 1978-06-23 1983-04-15 日本鋼管株式会社 レ−ルの製造方法
DE3446794C1 (de) * 1984-12-21 1986-01-02 BWG Butzbacher Weichenbau GmbH, 6308 Butzbach Verfahren zur Waermebehandlung perlitischer Schienenstaehle
JPH06340951A (ja) * 1993-03-12 1994-12-13 Nippon Steel Corp 靭性に優れた高強度レールおよびその製造法
RU2107740C1 (ru) * 1993-12-20 1998-03-27 Ниппон Стил Корпорейшн Рельс из перлитной стали с высокой износостойкостью и ударной вязкостью и способ его производства
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
JP3950212B2 (ja) * 1997-11-20 2007-07-25 新日本製鐵株式会社 耐摩耗性に優れた高強度パーライト系レールの製造法
JP2005146346A (ja) * 2003-11-14 2005-06-09 Nippon Steel Corp 靭性および延性に優れたパーライト系レールの製造方法
JP2005171327A (ja) * 2003-12-11 2005-06-30 Nippon Steel Corp 耐表面損傷性および耐内部疲労損傷性に優れたパーライト系レールの製造方法およびレール
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
AU2008235820B8 (en) * 2007-03-28 2011-01-20 Jfe Steel Corporation Internal high hardness type pearlitic rail with excellent wear resistance and rolling contact fatigue resistance and method for producing same
JP4994928B2 (ja) * 2007-04-17 2012-08-08 新日本製鐵株式会社 耐折損性に優れたレールの製造方法
JP5532789B2 (ja) * 2008-09-25 2014-06-25 Ｊｆｅスチール株式会社 フラッシュバット溶接継手特性に優れた内部高硬度型パーライト鋼レールおよびその溶接方法
JP5391711B2 (ja) * 2009-02-04 2014-01-15 新日鐵住金株式会社 高炭素パーライト系レールの熱処理方法
JP5267306B2 (ja) 2009-04-24 2013-08-21 新日鐵住金株式会社 高炭素鋼レールの製造方法
AU2011262876B2 (en) 2010-06-07 2016-02-04 Nippon Steel Corporation Steel rail and method of manufacturing the same

Also Published As

Publication number Publication date
CN106661651B (zh) 2019-07-16
AU2015304699A1 (en) 2017-03-02
JP6265267B2 (ja) 2018-01-24
US20170233843A1 (en) 2017-08-17
US10472693B2 (en) 2019-11-12
AU2015304699B2 (en) 2018-09-13
WO2016027467A1 (ja) 2016-02-25
EP3184654A4 (en) 2017-08-16
EP3184654B1 (en) 2019-10-30
CN106661651A (zh) 2017-05-10
EP3184654A1 (en) 2017-06-28
BR112017002702B1 (pt) 2021-09-08
JPWO2016027467A1 (ja) 2017-04-27

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
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 19/08/2015, OBSERVADAS AS CONDICOES LEGAIS.