In order to improve detection efficiency of casting bolster and side frame of railway freight car, the method to automatically detect railway casting porosity and shrinkage cavity using watershed transformation based on X-ray digital radiography is presented. Firstly, while castings of a bolster and a side frame are scanned by 9Mev X-ray digital radiography system, the DR images are obtained. Then one of interested regions is selected in an image. Defects segmentation is implemented by using watershed transformation algorithm in this paper. Lastly, defects area and occupy rate are acquired by analyzing and computing, so that we can judge the casting quality. The experimental results show that defect regions and contours can be accurately acquired. This method has high robustness and practicality. It improves the efficiency of automated inspection of railway castings.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Defects Detection for Casting of Railway Freight Car Using X-Ray Radiography



    Erschienen in:

    Erscheinungsdatum :

    27.07.2011


    Format / Umfang :

    5 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Railway freight car bogie and railway freight car

    XU SHANCHAO / XING SHUMING / LIU ZHENMING et al. | Europäisches Patentamt | 2015

    Freier Zugriff

    Railway freight rates

    Faithorn, J.N. | Engineering Index Backfile | 1903


    RAILWAY FREIGHT VEHICLES

    LEE SEOK HEE / PARK DONG SIK | Europäisches Patentamt | 2016

    Freier Zugriff

    Railway freight carriage

    GAO WEI / YE QINGLONG / WU XIANGNAN | Europäisches Patentamt | 2020

    Freier Zugriff