PE管道热熔对接接头的TOFD检测

TOFD inspection of PE pipe hot melted butt joint

研究了PE管材热熔对接接头的超声衍射时差法检测工艺特性,对人工缺陷试样及现场实际缺陷进行检测,验证了该工艺的可靠性。结果表明,超声衍射时差法技术能够可靠地检测出PE管材热熔对接接头中的典型缺陷。

The characteristics of the ultrasonic testing process of the hot-melted butt joint of PE pipes by the diffraction time difference method were studied. The artificial defect samples and the actual defects on site were tested, and the reliability of the process was verified. The results show that the diffraction time difference ultrasonic testing technology can reliably detect the typical defects in the hot-melted butt joints of PE pipes.