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| Abstract: A method was put forward for the detection of the fatigue cracks at the thread roots of a drill pipe by using ultrasonic wave.The specific detection probes were designed.Simulated cracks were detected.The results show that the probes can effecti |
中文意思：
文摘:钻杆螺纹根部疲劳裂纹是钻杆钻井服役中产生的常见缺陷类型，是钻杆螺纹发生断裂的重要根源.本文介绍了钻杆螺纹疲劳裂纹超声检测原理，设计了专用超声检测探头和检测装置，给出了检测试验结果，证明了钻杆螺纹疲劳裂纹超声检测的可行性和实用性. |
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