DE69815758D1 - Method of manufacturing a railroad wheel and railroad wheel thus manufactured - Google Patents

Method of manufacturing a railroad wheel and railroad wheel thus manufactured

Info

Publication number
DE69815758D1
DE69815758D1 DE69815758T DE69815758T DE69815758D1 DE 69815758 D1 DE69815758 D1 DE 69815758D1 DE 69815758 T DE69815758 T DE 69815758T DE 69815758 T DE69815758 T DE 69815758T DE 69815758 D1 DE69815758 D1 DE 69815758D1
Authority
DE
Germany
Prior art keywords
wheel
degrees
mpa
rim
railroad wheel
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.)
Expired - Lifetime
Application number
DE69815758T
Other languages
German (de)
Other versions
DE69815758T2 (en
Inventor
Francois Demilly
Michel Pollet
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.)
Valdunes SAS
Original Assignee
Valdunes SAS
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 Valdunes SAS filed Critical Valdunes SAS
Publication of DE69815758D1 publication Critical patent/DE69815758D1/en
Application granted granted Critical
Publication of DE69815758T2 publication Critical patent/DE69815758T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C21D9/34—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tyres; for rims
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering

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 Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

A railway wheel, comprising a rim connected to a hub by a flange which is less thick in the axial direction than the rim, is made of steel containing less than 0.35% carbon and less than 5% in total of alloying elements has an Ms point above 270 degrees C. During manufacture it is tempered and then heated at over 550 degrees C, so that at least the outer surface of the rim has mechanical properties as follows: Rm=860-960 MPa, Rp 0.2 at least 700 MPa, K1c at least 80 MPa per square m. Also claimed is a wheel of this sort, made of steel containing by weight 0.2-0.24% carbon, 0.9-1.1% manganese, 0.9-1.1% silicon, 1-1.2% chromium and 0.2-0.25% molybdenum, the rest being iron and impurities. The wheel has the mechanical properties listed above which are not affected by braking equivalent to 540 degrees C maintained for one hour.
DE69815758T 1997-05-23 1998-04-29 Method of manufacturing a railway wheel and railway wheel thus manufactured Expired - Lifetime DE69815758T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9706290 1997-05-23
FR9706290A FR2763601B1 (en) 1997-05-23 1997-05-23 METHOD FOR MANUFACTURING A STEEL RAILWAY WHEEL AND A RAILWAY WHEEL OBTAINED

Publications (2)

Publication Number Publication Date
DE69815758D1 true DE69815758D1 (en) 2003-07-31
DE69815758T2 DE69815758T2 (en) 2004-04-29

Family

ID=9507146

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69815758T Expired - Lifetime DE69815758T2 (en) 1997-05-23 1998-04-29 Method of manufacturing a railway wheel and railway wheel thus manufactured

Country Status (5)

Country Link
EP (1) EP0884396B1 (en)
AT (1) ATE243772T1 (en)
CZ (1) CZ298116B6 (en)
DE (1) DE69815758T2 (en)
FR (1) FR2763601B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20032370A1 (en) * 2003-12-03 2005-06-04 Lucchini Sidermeccanica S P A HIGH BAINITH MICROLEGATE STEEL FOR FATIGUE RESISTANCE
CN104325838B (en) * 2014-10-22 2016-08-24 雷帮荣 A kind of high ferro wheel and hot extrusion integral forming method thereof
CN113046540B (en) * 2021-03-11 2022-08-16 宝武集团马钢轨交材料科技有限公司 Heat treatment process for wheel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067873A5 (en) * 1969-11-19 1971-08-20 Inst Chernoi Metallurgii Railway wheel hardening method
IT957295B (en) * 1972-03-02 1973-10-10 Italsider Spa PERFECTED PROCESS FOR THE REALIZATION OF STEEL MONOBLOCK WHEELS
JPS5422771B2 (en) * 1974-01-28 1979-08-09
JPS5893857A (en) * 1981-11-30 1983-06-03 Sumitomo Metal Ind Ltd Railway wheel with superior heat check resistance and breaking resistance
DE4343565C1 (en) * 1993-12-21 1995-06-08 Ver Schmiedewerke Gmbh Method for producing rail wheels and rail wheel parts

Also Published As

Publication number Publication date
FR2763601B1 (en) 1999-06-25
CZ152198A3 (en) 1999-08-11
EP0884396A1 (en) 1998-12-16
CZ298116B6 (en) 2007-06-27
ATE243772T1 (en) 2003-07-15
DE69815758T2 (en) 2004-04-29
EP0884396B1 (en) 2003-06-25
FR2763601A1 (en) 1998-11-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition