Research on the Key Technology of Ultrasonic Phased Array Detection
The placed corner weld has the characteristics of varying curvature,special weld form,etc.In the implementation of testing,the probe and testing surface can not achieve good contact,so it is difficult to implement effective testing.This paper proposes the ultrasonic of ultrasonic type to to ultrasonic type this method.To solve the difficulty of welding detection,CIV A software is used to simulate the phased array probe at different frequencies to determine the appropriate detection frequency,which is helpful to optimize the detection process.Combined with the defects easy to be produced in the actual engineering of the mounted pipe seat corner weld,the design contains three common types of natural defect test blocks,such as crack,no fusion and slag,and then the natural defect test block is tested by ultrasonic phased array detection method.The results show that the internal defects of the tube socket weld can be effectively detected by ultrasonic phased array.
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