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JPS57198216A - Manufacture of high-strength rail - Google Patents

Manufacture of high-strength rail

Info

Publication number
JPS57198216A
JPS57198216A JP7940081A JP7940081A JPS57198216A JP S57198216 A JPS57198216 A JP S57198216A JP 7940081 A JP7940081 A JP 7940081A JP 7940081 A JP7940081 A JP 7940081A JP S57198216 A JPS57198216 A JP S57198216A
Authority
JP
Japan
Prior art keywords
rail
weldability
satisfactory
hot
manufacture
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP7940081A
Other languages
Japanese (ja)
Other versions
JPS6323244B2 (en
Inventor
Masahiro Ueda
Kozo Fukuda
Hiroyuki Ichinose
Takao Noguchi
Makoto Muraki
Tetsushige Ide
Yoichi Tamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP7940081A priority Critical patent/JPS57198216A/en
Publication of JPS57198216A publication Critical patent/JPS57198216A/en
Publication of JPS6323244B2 publication Critical patent/JPS6323244B2/ja
Granted legal-status Critical Current

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

Landscapes

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

Abstract

PURPOSE:To obtain a rail which is resistant to a severe condition of a high speed operation under a high axial load, and also is satisfactory in weldability, by hot-rolling an Fe alloy containing C, Si, Mn and Cr, and to which Nb, etc. or Mo, etc. have been added as necessary, and after that, cooling it. CONSTITUTION:A rail having composition consisting of 0.60-0.85% C, 0.1-0.8% Si, 0.7-1.5%Mn, 0.2-0.8%Cr, and the balance Fe with inevitable impurities is hot-rolled, and after that, it is cooled by accelerating a cooling speed between 850-500 deg.C by 1-4 deg.C from an austenite area, by which it is possible to obtain a high-strength rail which scarcely generates abrasion and fatigue damage, and satisfactory in weldability. Said basic composition is capable of further containing >= 1 kind among 0.01-0.10%Nb, 0.01-0.10%V and 0.01-0.10%Ti, or >= 1 kind among 0.02-0.10%Mo, 0.02-0.5%Cu and 0.02-0.5%Ni.
JP7940081A 1981-05-27 1981-05-27 Manufacture of high-strength rail Granted JPS57198216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7940081A JPS57198216A (en) 1981-05-27 1981-05-27 Manufacture of high-strength rail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7940081A JPS57198216A (en) 1981-05-27 1981-05-27 Manufacture of high-strength rail

Publications (2)

Publication Number Publication Date
JPS57198216A true JPS57198216A (en) 1982-12-04
JPS6323244B2 JPS6323244B2 (en) 1988-05-16

Family

ID=13688796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7940081A Granted JPS57198216A (en) 1981-05-27 1981-05-27 Manufacture of high-strength rail

Country Status (1)

Country Link
JP (1) JPS57198216A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6256524A (en) * 1985-09-06 1987-03-12 Nippon Steel Corp Manufacture of high strength rail providing weldability
US4668308A (en) * 1984-05-09 1987-05-26 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Method and apparatus for manufacturing rails
JPS6324045A (en) * 1986-07-16 1988-02-01 Nippon Kokan Kk <Nkk> Wear-resistant, high-performance rail with excellent ability to stop unstable fracture propagation
JPS6362846A (en) * 1986-09-03 1988-03-19 Nippon Kokan Kk <Nkk> High-strength low-alloy rail excellent in softening resistance in weld zone
JPH0320442A (en) * 1989-03-20 1991-01-29 Nkk Corp Low alloy high strength rail having excellent electrical conductivity
US5658400A (en) * 1993-12-20 1997-08-19 Nippon Steel Corporation Rails of pearlitic steel with high wear resistance and toughness and their manufacturing methods
US5762723A (en) * 1994-11-15 1998-06-09 Nippon Steel Corporation Pearlitic steel rail having excellent wear resistance and method of producing the same
EP1241277A3 (en) * 2001-03-05 2003-03-19 AMSTED Industries Incorporated Railway wheel alloy
US6931703B2 (en) * 2001-05-30 2005-08-23 Nippon Steel Corporation Rail producing method and producing equipment
JP2009263753A (en) * 2008-04-28 2009-11-12 Nippon Steel Corp Rail whose internal has high hardness
JP2010077481A (en) * 2008-09-25 2010-04-08 Jfe Steel Corp High internal hardness type pearlitic steel rail excellent in wear resistance and fatigue deterioration resistance, and method for manufacturing the same
EP2045341A4 (en) * 2006-07-24 2010-11-24 Nippon Steel Corp METHOD FOR PRODUCING A PERLITIC RAIL WITH OUTSTANDING ABRASTENING STRENGTH AND DUCTILITY
JP2011162822A (en) * 2010-02-08 2011-08-25 Nippon Steel Corp Pearlite rail having superior wear resistance and method for manufacturing the same
EP2388352A1 (en) 2002-04-05 2011-11-23 Nippon Steel Corporation Pearlitic steel rail excellent in wear resistance and ductility and method for producing the same
US8361382B2 (en) 2006-03-16 2013-01-29 Jfe Steel Corporation High-strength pearlitic steel rail having excellent delayed fracture properties
WO2013161026A1 (en) * 2012-04-25 2013-10-31 Ｊｆｅスチール株式会社 Pearlite rail, flash butt welding method for pearlite rail, and method for manufacturing pearlite rail
CN110423941A (en) * 2019-07-31 2019-11-08 攀钢集团攀枝花钢铁研究院有限公司 A method of control R260 WELDING JOINT martensitic structure
US10995396B2 (en) 2016-05-19 2021-05-04 Nippon Steel Corporation Rail

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63147454U (en) * 1987-03-17 1988-09-28
JPH0912037A (en) * 1995-06-29 1997-01-14 Maruzen Kogyo Kk Envelope
JP5401762B2 (en) * 2006-03-16 2014-01-29 Ｊｆｅスチール株式会社 High-strength pearlite rail with excellent delayed fracture resistance
AU2013275213B2 (en) 2012-06-14 2015-09-17 Nippon Steel Corporation Rail
WO2016117689A1 (en) 2015-01-23 2016-07-28 新日鐵住金株式会社 Rail
EP3249070B1 (en) 2015-01-23 2020-03-18 Nippon Steel Corporation Rail
CN107475609A (en) * 2017-08-09 2017-12-15 侯宇岷 A kind of wear-resisting Steel Bar, wear-resisting rod iron and preparation method thereof
JP7088293B2 (en) 2018-09-10 2022-06-21 日本製鉄株式会社 Rails and rail manufacturing methods
AU2020240203B2 (en) 2019-03-15 2023-07-06 Nippon Steel Corporation Rail

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047808A (en) * 1973-05-02 1975-04-28
JPS55125231A (en) * 1979-03-17 1980-09-26 Nippon Steel Corp Production of weldable low alloy heat treated hard top rail

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047808A (en) * 1973-05-02 1975-04-28
JPS55125231A (en) * 1979-03-17 1980-09-26 Nippon Steel Corp Production of weldable low alloy heat treated hard top rail

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668308A (en) * 1984-05-09 1987-05-26 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Method and apparatus for manufacturing rails
JPS6256524A (en) * 1985-09-06 1987-03-12 Nippon Steel Corp Manufacture of high strength rail providing weldability
JPS6324045A (en) * 1986-07-16 1988-02-01 Nippon Kokan Kk <Nkk> Wear-resistant, high-performance rail with excellent ability to stop unstable fracture propagation
JPS6362846A (en) * 1986-09-03 1988-03-19 Nippon Kokan Kk <Nkk> High-strength low-alloy rail excellent in softening resistance in weld zone
JPH0320442A (en) * 1989-03-20 1991-01-29 Nkk Corp Low alloy high strength rail having excellent electrical conductivity
US5658400A (en) * 1993-12-20 1997-08-19 Nippon Steel Corporation Rails of pearlitic steel with high wear resistance and toughness and their manufacturing methods
USRE41033E1 (en) 1994-11-15 2009-12-08 Nippn Steel Corporation Pearlitic steel rail having excellent wear resistance and method of producing the same
USRE42668E1 (en) 1994-11-15 2011-09-06 Nippon Steel Corporation Pearlitic steel rail having excellent wear resistance and method of producing the same
USRE40263E1 (en) 1994-11-15 2008-04-29 Nippon Steel Corporation Pearlitic steel rail having excellent wear resistance and method of producing the same
US5762723A (en) * 1994-11-15 1998-06-09 Nippon Steel Corporation Pearlitic steel rail having excellent wear resistance and method of producing the same
USRE42360E1 (en) 1994-11-15 2011-05-17 Nippon Steel Corporation Pearlitic steel rail having excellent wear resistance and method of producing the same
EP1241277A3 (en) * 2001-03-05 2003-03-19 AMSTED Industries Incorporated Railway wheel alloy
US6931703B2 (en) * 2001-05-30 2005-08-23 Nippon Steel Corporation Rail producing method and producing equipment
CN1298501C (en) * 2001-05-30 2007-02-07 新日本制铁株式会社 Rail producing method and producing equipment
EP2388352A1 (en) 2002-04-05 2011-11-23 Nippon Steel Corporation Pearlitic steel rail excellent in wear resistance and ductility and method for producing the same
US8404178B2 (en) 2006-03-16 2013-03-26 Jfe Steel Corporation High-strength pearlitic steel rail having excellent delayed fracture properties
US8361382B2 (en) 2006-03-16 2013-01-29 Jfe Steel Corporation High-strength pearlitic steel rail having excellent delayed fracture properties
US8210019B2 (en) 2006-07-24 2012-07-03 Nippon Steel Corporation Method for producing pearlitic rail excellent in wear resistance and ductility
EP2045341A4 (en) * 2006-07-24 2010-11-24 Nippon Steel Corp METHOD FOR PRODUCING A PERLITIC RAIL WITH OUTSTANDING ABRASTENING STRENGTH AND DUCTILITY
JP2009263753A (en) * 2008-04-28 2009-11-12 Nippon Steel Corp Rail whose internal has high hardness
JP2010077481A (en) * 2008-09-25 2010-04-08 Jfe Steel Corp High internal hardness type pearlitic steel rail excellent in wear resistance and fatigue deterioration resistance, and method for manufacturing the same
JP2011162822A (en) * 2010-02-08 2011-08-25 Nippon Steel Corp Pearlite rail having superior wear resistance and method for manufacturing the same
WO2013161026A1 (en) * 2012-04-25 2013-10-31 Ｊｆｅスチール株式会社 Pearlite rail, flash butt welding method for pearlite rail, and method for manufacturing pearlite rail
US10995396B2 (en) 2016-05-19 2021-05-04 Nippon Steel Corporation Rail
CN110423941A (en) * 2019-07-31 2019-11-08 攀钢集团攀枝花钢铁研究院有限公司 A method of control R260 WELDING JOINT martensitic structure

Also Published As

Publication number Publication date
JPS6323244B2 (en) 1988-05-16

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