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    GUO Wei-Can, ZHENG Jin-Yang, DING Shou-Bao, SHI Jian-Feng, SHI Ping. Ultrasonic Inspection of Welding in Electro-Fusion Joint of Polyethylene Pipes[J]. Nondestructive Testing, 2008, 30(12): 877-880.
    Citation: GUO Wei-Can, ZHENG Jin-Yang, DING Shou-Bao, SHI Jian-Feng, SHI Ping. Ultrasonic Inspection of Welding in Electro-Fusion Joint of Polyethylene Pipes[J]. Nondestructive Testing, 2008, 30(12): 877-880.

    Ultrasonic Inspection of Welding in Electro-Fusion Joint of Polyethylene Pipes

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    • Received Date: July 21, 2007
    • Polyethylene(PE) pipe was widely used in the gas distribution networks. Cold welding and over-heat welding could infect directly the mechanics performance of joint of PE pipes. It was discovered that there was an Eigen-line in the electro-fusion(EF) joint of PE pipes due to a great amount of separated micro-bubbles, and the distance between the line and heating wires could be used to measure the degree of welding. Furthermore, a unique method was developed to detect the degree of welding. A set of experiments showed that the method could be used in the research of welding procedure, and cold welding and over-heat welding quality inspection.
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