Research on ultrasonic testing technology for butt welds of pipes with same outer diameter and different wall thickness
The butt welds of pipes with the same outer diameter but different wall thickness were tested by ultrasonic according to the conventional unilateral and bilateral detection,and the detection process should be selected according to the wall thickness.While detection based on the thickness of thin-walled pipe did not meet the requirements of thick-walled pipe,and it was easy to miss detection.For this purpose,5P6x6x2K2.5F5 and 2P6x6Kl.5F10 probes were utilized to detect on both sides of the weld respectively in the paper.Then the position and size of defects were verified after mechanical grinding.The results showed that the location and size of defects obtained by using two different K probes on the thin wall were basically consistent with the actual situation.
pipe butt weldsame outer diameter and different wall thicknessultrasonic test
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