Previous standards for the manufacturing inspection of railroad wheels using ultrasound, such as UIC 812, have been replaced by new standards, for example EN 13262 and RD32.144-2000, both requiring ultrasonic testing in immersion technique. These new standards require the development of an ultrasonic technique for 100 % coverage of the wheel rim and wheel hub, and in special cases for both straight and curved wheel disks. The current requirement for the minimum detectable flaw size is DSR 1 mm (disc shape reflector, DSR, 1 mm diameter) for high-speed train wheels rims and DSR 2 mm for all other wheel rims. The minimum detectable flaw size for all other wheel areas (hub and disk areas) is DSR 3 mm. To meet all these criteria, the Rail Wheel Inspection (RWI) System was developed by IZFP and their partners. The system consists of an ultrasonic testing sub-system, immersion tank and transportation/handling sub-systems. Test cycles of 1 minute per wheel require two immersion tanks and two transportation/handling subsystems. The ultrasonic sub-system features modular computer-aided 6 to 16- channel UT electronics (PCUS 11) to employ 6 to 16 ultrasonic transducers (the precise number is determined by the testing procedure). This presentation paper offers descriptions of, and results from three of these systems that have been integrated into manufacturing processes at German and Russian wheel manufacturers.


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    Title :

    New ultrasound testing systems for the production testing of rail wheels


    Additional title:

    Neue Ultraschallprüfsysteme für die Prüfung von Eisenbahnräder bei der Herstellung


    Contributors:
    Rockstroh, B. (author) / Walte, F. (author) / Kappes, W. (author) / Bessert, S. (author) / Kröning, M. (author) / Schäfer, W. (author) / Dath, R. (author) / Üblacker, B. (author) / Montnacher, J. (author) / Minich, F. (author)


    Publication date :

    2006


    Size :

    9 Seiten, 7 Bilder, 5 Quellen



    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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