Abstract
The welding defects of TWT collector have an adverse effect on collector's heat dissipation, which easily cause TWT failure, therefore the ultrasonic testing and 3D X-ray testing technology for welding defects of collector are studied. An ultrasonic testing method which can detect three typical brazed areas is presented, and the assessment criteria of welding defects are made. In the research of 3D X-ray testing technology, welding defects are qualitative and quantitative analyzed, and its results are consistent with the ultrasonic testing results. The investigations show that these two test methods are both important technologies that can ensure the welding quality and reliability of TWT collector, which can be applied in the manufacture.
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