Defect imaging characteristic of fillet weld between heat exchange tube andtube sheet with rod anode X-ray inspection

Based on the analysis on the causes of the defects of the fillet weld structure between the heat exchange tube and the tube sheet in the welding process, and according to the imaging characteristics of the film of the rod anode X-ray inspection, the comparison between the actual defects of the weld and the film image is analyzed, and the imaging characteristics of the defects in the rod anode X-ray film are summarized.