Advance of Nondestructive Testing of Heat-Fusion Welding Joint for Polyethylene Pipe

In this paper, the research progress of nondestructive testing of heat-fusion welded joint for polyethylene pipe in recent years was reviewed. Visual observation, ultrasonic testing, micro- wave scanning, X light strip method of heat-fusion welded joint quality evaluation for polyethylene pipe were involved. The development trend of nondestructive testing with polyethylene in the future was forecast.