The invention relates to the field of flaw detection of steel rails, in particular to an ultrasonic flaw detection method suitable for 60 steel rails, the height of the 60 steel rails is 176 mm, the steel rails are divided into 16 scanning areas according to the interval of 11 mm, 15 scanning points are arranged in total, the scanning points are sequentially numbered from 1 to 15 from the surfaces of the steel rails to the bottom, and scanning of vertical defects of the parts from the rail heads of the steel rails to the rail bottoms (rail waist projection areas) of the steel rails can be covered. The refraction angle of ultrasonic signals is set to be 45 degrees, and ten ultrasonic probes are arranged in sequence and numbered from 1 to 10. Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects: the flaw detection method provided by the invention can realize automatic ultrasonic flaw detection and realize the target of at least reaching the detection speed of 15km/h, so that the ultrasonic probe is fixed at a specific angle in the wheel skin; the wheel skin is filled with coupling liquid so that ultrasonic signals can be transmitted to the surface of the steel rail from the probe and then refracted into the steel rail for defect detection.

    本发明涉及钢轨他探伤领域,具体地,涉及一种适用于60钢轨的超声波探伤方法,60轨高度176mm,按照11mm的间隔将钢轨分成了16个扫查区域,共15个扫查点,扫查点从钢轨表面往下依次编号1‑15,可以覆盖钢轨轨头至钢轨轨底(轨腰投影区)部位垂直缺陷的扫查。超声波信号的折射角设为45°,共设有10个超声波探头,按照顺序排列,编号1‑10。与现有技术相比,本申请提出的技术方案具有如下的有益效果:本发明提供的探伤方法,能够实现自动化超声波探伤,实现至少达到15km/h检测速度的目标,使得超声波探头在轮皮内部以特定角度固定,轮皮内部充满耦合液体以使超声波信号可以从探头处传播至钢轨表面,进而折射进钢轨内部进行缺陷检测。


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    Title :

    Ultrasonic flaw detection method suitable for 60 steel rail


    Additional title:

    一种适用于60钢轨的超声波探伤方法


    Contributors:
    YANG WEN (author) / FENG XINGPENG (author) / GUO JIANZHI (author) / LIN YONGSEN (author) / LU XIUQING (author) / XIE XIN (author) / TAKAZAWA SATOSHI (author) / LI QIANYING (author) / XIE SUNCAI (author)

    Publication date :

    2023-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS



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