某公司承造的60.5 m多用途系列拖轮导流罩焊缝特殊结构，通过制作对比试块进行试验，探讨了使用常规超声波探伤方法检验此类焊缝的可行性。试验表明，由于会存在部分区域漏检和误判的可能，常规超声波探伤方法对于该导流罩主焊缝及其它类似特殊结构的检测，仅能作为参考辅助手段，不推荐使用。

This paper chooses the nuzzle welds with particular structure of 60.5 m multi-purpose offshore support vessels manufactured by a company as the object under investigation. By making the reference test blocks and carrying on the experiment, the feasibility investigation of conventional ultrasonic testing to this kind of welds is discussed. Experimental results showed that the conventional ultrasonic testing was used only for subsidiary means, and was not recommended as a main method for the nuzzle weld and similar structures.