在中油管道局俄罗斯工程焊工考试中,采用了手动超声波对PWT自动焊工艺焊工考试的管道环焊缝进行检测。在检测过程中,对发现存在典型缺陷波形或可疑波形的焊口进行切片,并做金相分析验证。了解此种焊接工艺和缺陷波形,可避免在以后检测工作中误判,提高检测的准确性。 In the China Petroleum Pipeline Bureau Russian engineering welder examination, using manual ultrasonic PWT automatic welding process welder pipeline girth test. In the testing process, we found that there are typical defects or suspicious waveforms of the weld slice, and metallographic analysis to verify. Understand this welding process and defect waveforms, to avoid misjudgment in the future testing, to improve the accuracy of testing.