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为了更好地定期监测压力容器及制造检验中焊缝质量,在现场无损检测过程中针对壁厚大于12mm的压力容器,采用超声波衍射时差法(TOFD)结合常规检测方法,分析对比各类缺陷的特征,总结TOFD检测技术对非超标缺陷判断和推测。
In order to better regularly monitor the quality of the pressure vessel and the quality of the weld during the manufacturing inspection, the ultrasonic wave time-difference method (TOFD) combined with the conventional detection method was used to analyze and compare various types of defects Features, Summary TOFD detection of non-standard defects to determine and speculate.