A railway wheel in which formation of pro-eutectoid cementite is suppressed is stably produced.After heating an intermediate product containing, in mass%, C: 0.80 to 1.15% to a temperature not less than Acmtransformation point, the intermediate product is cooled such that the cooling rate (°C/sec) in a range from 800 to 500°C satisfies the following conditions:Surface other than the tread and the flange surface: not more than Fn1 defined by Formula (1),Cooling rate in a region in which cooling rate is slowest: not less than Fn2 defined by Formula (1), andTread and flange surface: not less than Fn2:Fn1=−5.0+exp5.651−1.427×C−1.280×Si−0.7723×Mn−1.815×Cr−1.519×Al−7.798×VFn2=0.515+exp−24.816+24.121×C+1.210×Si+0.529×Mn+2.458×Cr−15.116×Al−5.116×V


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    Titel :

    METHOD FOR PRODUCING RAILWAY WHEEL AND RAILWAY WHEEL


    Beteiligte:
    MAEJIMA TAKETO (Autor:in) / KUBOTA MANABU (Autor:in)

    Erscheinungsdatum :

    02.04.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    C22C Legierungen , ALLOYS / B60B VEHICLE WHEELS , Räder für Fahrzeuge / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS



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