Experimental Study on Microwave Test of Cold Weld Defects in HDPE Piping Thermal Fusion Welds

Jin Ping Pan; Xin Wei Zhu; Lian Jiang Tan

doi:10.4028/www.scientific.net/AMM.433-435.895

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 433-435Experimental Study on Microwave Test of Cold Weld...

Experimental Study on Microwave Test of Cold Weld Defects in HDPE Piping Thermal Fusion Welds

Abstract:

In this paper, an effective method for detecting the cold weld defects in the thermal fusion weld of high-density polyethylene (HDPE) pipeline based on microwave technique is proposed. Using a microwave testing system, HDPE piping welds were examined in a proper position by frequency sweep within the range of 9.3-9.9 GHz. At a frequency that was most sensitive to the cold weld defects, the measured reflection coefficient S₁₁ exhibited significantly different values between the good weld and those containing cold weld defects. The readily detectable differences in S₁₁value make identification of the cold weld defects possible. This work provides a basis for inspection of defects in HDPE piping welds.

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Periodical:

Applied Mechanics and Materials (Volumes 433-435)

Pages:

895-899

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.433-435.895

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Online since:

October 2013

Authors:

Jin Ping Pan, Xin Wei Zhu, Lian Jiang Tan

Keywords:

Cold Weld Defect, HDPE Piping, Microwave Test, Thermal Fusion Welds

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