在对斜探头进行前沿长度测量、角度校准的基础上,采用超声波检测仪对焊接接头中的不同缺陷进行了无损检测,提取了不同缺陷的回波波形,探讨了不同缺陷与超声波波形之间的对应关系。而后采用剖切焊件的方法对检测结果进行了验证。试验结果表明:本文提出的方法可用于对接接头中焊接缺陷的无损检测。 Based on the measurement of the length of the leading edge of the oblique probe and the calibration of the angle, different defects in the welded joint were non-destructively detected by using an ultrasonic detector, and the echo waveforms of different defects were extracted, and the relationship between different defects and the ultrasonic wave waveform Corresponding relationship. Then the method of cutting weldment was used to verify the test results. The experimental results show that the proposed method can be applied to the nondestructive testing of weld defects in butt joint.