Some scientific, engineering and process aspects of heat hardening of rolling stock screw springs from steels with reduced (55PP) and controlled (55RP) hardenability by the method of volume-surface hardening are considered. The efficiency of the new process from the stand-point of saving of resources due to decrease in the content of alloying elements in the metal and increase in the relaxation resistance and in the endurance limit of the springs hardened by the volume-surface method is demonstrated. Results of laboratory and field tests are analyzed. The main components of the spring production line are described.


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    Title :

    Volume-surface hardening of freight bogie springs from steels with reduced and controlled hardenability


    Additional title:

    Volumen- und Oberflächenhärten von Drehgestellfedern für Güterwagen aus Stählen mit niedriger oder gesteuerter Härtbarkeit
    Titel russisch


    Contributors:
    Fedin, V.M. (author) / Borts, A.I. (author)


    Publication date :

    2009


    Size :

    8 Seiten, 12 Bilder, 3 Tabellen, 5 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Russian




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