BR112018073094A2 - trilho - Google Patents

trilho

Info

Publication number
BR112018073094A2
BR112018073094A2 BR112018073094A BR112018073094A BR112018073094A2 BR 112018073094 A2 BR112018073094 A2 BR 112018073094A2 BR 112018073094 A BR112018073094 A BR 112018073094A BR 112018073094 A BR112018073094 A BR 112018073094A BR 112018073094 A2 BR112018073094 A2 BR 112018073094A2
Authority
BR
Brazil
Prior art keywords
rail
depth
peripheral surface
present
portion ranging
Prior art date
Application number
BR112018073094A
Other languages
English (en)
Inventor
Ueda Masaharu
Miyazaki Teruhisa
Original Assignee
Nippon Steel & Sumitomo Metal 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 & Sumitomo Metal Corp filed Critical Nippon Steel & Sumitomo Metal Corp
Publication of BR112018073094A2 publication Critical patent/BR112018073094A2/pt

Links

Classifications

    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5264—Manufacture of alloyed steels including ferro-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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • 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
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0006—Adding metallic additives
    • C21C2007/0012—Lead
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

a presente invenção refere-se ao trilho de acordo com um aspecto da presente invenção que é produzido através de fabricação de aço pela fusão usando um forno elétrico, e contém componentes químicos nas respectivas quantidades dentro de determinadas faixas, em particular, contém 0,0003% a 0,0020% de pb. na cabeça do trilho, 95 % de área ou mais de uma porção que varia a partir da superfície periférica até uma profundidade de 20 mm é representada por uma estrutura de perlita, e a porção que varia a partir da superfície periférica até uma profundidade de 20 mm tem uma dureza na faixa de 300 a 500 hv.
BR112018073094A 2016-05-19 2017-05-19 trilho BR112018073094A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016100119 2016-05-19
PCT/JP2017/018873 WO2017200096A1 (ja) 2016-05-19 2017-05-19 レール

Publications (1)

Publication Number Publication Date
BR112018073094A2 true BR112018073094A2 (pt) 2019-03-06

Family

ID=60325375

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018073094A BR112018073094A2 (pt) 2016-05-19 2017-05-19 trilho

Country Status (3)

Country Link
US (1) US10995396B2 (pt)
BR (1) BR112018073094A2 (pt)
WO (1) WO2017200096A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6631403B2 (ja) * 2016-05-19 2020-01-15 日本製鉄株式会社 耐摩耗性および靭性に優れたレール
AT521405B1 (de) * 2018-07-10 2021-09-15 Voestalpine Schienen Gmbh Gleisteil aus einem hypereutektoiden Stahl
CN114855082B (zh) * 2022-04-26 2023-06-20 包头钢铁（集团）有限责任公司 一种稀土元素提高热轧u75v钢轨低温韧性制造方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198216A (en) 1981-05-27 1982-12-04 Nippon Kokan Kk <Nkk> Manufacture of high-strength rail
JP2809677B2 (ja) * 1989-03-22 1998-10-15 日立金属株式会社 転造ダイス用鋼
JPH05263121A (ja) 1992-03-19 1993-10-12 Nippon Steel Corp 高炭素高清浄溶鋼の製造方法
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
JP3078461B2 (ja) 1994-11-15 2000-08-21 新日本製鐵株式会社 高耐摩耗パーライト系レール
JP2001040453A (ja) 1999-07-27 2001-02-13 Nippon Steel Corp 靭性に優れた高強度パーライト系レールおよびその製造方法
JP3487234B2 (ja) * 1999-08-23 2004-01-13 住友金属工業株式会社 継目無鋼管用高炭素鋼片の製造方法
JP2001220651A (ja) 2000-02-08 2001-08-14 Nkk Corp 耐ヘビーシェリング損傷性に優れたレール
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
CA2744992C (en) * 2009-08-18 2014-02-11 Nippon Steel Corporation Pearlite rail
KR101421368B1 (ko) * 2010-06-07 2014-07-24 신닛테츠스미킨 카부시키카이샤 강 레일 및 그 제조 방법
US9534278B2 (en) * 2012-06-14 2017-01-03 Nippon Steel & Sumitomo Metal Corporation Rail

Also Published As

Publication number Publication date
US10995396B2 (en) 2021-05-04
US20190161839A1 (en) 2019-05-30
WO2017200096A1 (ja) 2017-11-23

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Legal Events

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

Owner name: NIPPON STEEL CORPORATION (JP)

B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements