Corrosion detection of pressure equipment based on ultrasonic guided wave and

Ultrasonic guided wave technology can detect corrosion defects on the inner and outer walls of the pressure equipment in long-distance, fast, and large-scale manner without the need of removing the coating. However, there are certain difficulties in re-examining the defects of pressure equipment with cladding. In response to the above problems, this paper uses pulse eddy current technology to reexamine the ultrasonic guided wave test results, By setting a test block for comparative test, and conducting on-site testing application, it is proved that the pulse eddy current technology can effectively recheck the ultrasonic guided wave test results. Through the combined use of these two technologies, ultrasonic guided wave technology can be better applied to the detection of pressure equipment.