IN2014DN06937A - - Google Patents

Info

Publication number
IN2014DN06937A
IN2014DN06937A IN6937DEN2014A IN2014DN06937A IN 2014DN06937 A IN2014DN06937 A IN 2014DN06937A IN 6937DEN2014 A IN6937DEN2014 A IN 6937DEN2014A IN 2014DN06937 A IN2014DN06937 A IN 2014DN06937A
Authority
IN
India
Prior art keywords
head
mns
rail
sulfides
pearlite
Prior art date
Application number
Inventor
Masaharu Ueda
Teruhisa Miyazaki
Takeshi Yamamoto
Takashi Morohoshi
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 IN2014DN06937A publication Critical patent/IN2014DN06937A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/04Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00Rails; Guard rails; Distance-keeping means for them
    • E01B5/02Rails
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/005Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/08Ferrous alloys, e.g. steel alloys containing nickel
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/10Ferrous alloys, e.g. steel alloys containing cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/12Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/16Ferrous alloys, e.g. steel alloys containing copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/06Deoxidising, e.g. killing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/002Bainite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/004Dispersions; Precipitations
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/009Pearlite

Abstract

IN THIS RAIL AT LEAST 95% OF THE STRUCTURE OF A HEAD CORNER PART AND A HEAD SURFACE PART WHICH CONSTITUTES A RANGE UP TO A DEPTH OF 20 MM USING THE SURFACE OF A HEAD TOP PART AS A STARTING POINT IS A PEARLITE OR BAINITE STRUCTURE. THE STRUCTURE IN A LATERAL CROSS SECTION OF THE RAIL CONTAINS 20 TO 200 MNS SULFIDES PER SQUARE MILLIMETER OF DETECTED AREA THE MNS BASED SULFIDES HAVING AL OXIDES AS NUCLEI AND MEASURING 1 TO 10 M IN GRAIN SIZE.
IN6937DEN2014 2012-04-23 2013-04-23 IN2014DN06937A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012097584 2012-04-23
PCT/JP2013/061857 WO2013161794A1 (en) 2012-04-23 2013-04-23 Rail

Publications (1)

Publication Number Publication Date
IN2014DN06937A true IN2014DN06937A (en) 2015-04-10

Family

ID=49483106

Family Applications (1)

Application Number Title Priority Date Filing Date
IN6937DEN2014 IN2014DN06937A (en) 2012-04-23 2013-04-23

Country Status (9)

Country Link
US (1) US9127409B2 (en)
EP (1) EP2843074B1 (en)
JP (1) JP5459453B1 (en)
CN (1) CN104185690A (en)
AU (1) AU2013253561B2 (en)
ES (1) ES2671632T3 (en)
IN (1) IN2014DN06937A (en)
RU (1) RU2561947C1 (en)
WO (1) WO2013161794A1 (en)

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* Cited by examiner, † Cited by third party
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US9670570B2 (en) * 2014-04-17 2017-06-06 Evraz Inc. Na Canada High carbon steel rail with enhanced ductility
WO2015182759A1 (en) * 2014-05-29 2015-12-03 新日鐵住金株式会社 Rail and production method therefor
US10233512B2 (en) 2014-05-29 2019-03-19 Nippon Steel & Sumitomo Metal Corporation Rail and production method therefor
CN104152810B (en) * 2014-08-26 2016-08-17 武汉钢铁(集团)公司 The chain link steel of a kind of forklift tire protection link network and production method
CA2973858C (en) * 2015-01-23 2019-09-03 Nippon Steel & Sumitomo Metal Corporation Rail
CN107208239B (en) * 2015-01-27 2018-11-09 新日铁住金株式会社 Micro Alloying mechanical part wire rod, Micro Alloying mechanical part steel wire and Micro Alloying mechanical part
JP6515278B2 (en) * 2015-03-20 2019-05-22 日本製鉄株式会社 Carbon steel slab and method of manufacturing carbon steel slab
CN105040532B (en) * 2015-07-23 2017-05-31 攀钢集团攀枝花钢铁研究院有限公司 A kind of heavy haul railway rail and its production method and application
WO2019189015A1 (en) 2018-03-30 2019-10-03 Jfeスチール株式会社 Rail
CN110592355B (en) * 2019-09-27 2020-12-29 武汉钢铁有限公司 Production method for reducing residual stress of heat-treated steel rail and steel rail obtained by production method
JP7311785B2 (en) 2019-12-24 2023-07-20 日本製鉄株式会社 Melting method of Al-deoxidized steel

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Also Published As

Publication number Publication date
RU2561947C1 (en) 2015-09-10
EP2843074A4 (en) 2015-12-02
WO2013161794A1 (en) 2013-10-31
CN104185690A (en) 2014-12-03
EP2843074B1 (en) 2018-03-21
JPWO2013161794A1 (en) 2015-12-24
AU2013253561B2 (en) 2014-12-18
US9127409B2 (en) 2015-09-08
AU2013253561A1 (en) 2014-09-11
JP5459453B1 (en) 2014-04-02
US20150069141A1 (en) 2015-03-12
ES2671632T3 (en) 2018-06-07
EP2843074A1 (en) 2015-03-04

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