NDT-ultrasonic flaw detector
Generally refers to the interaction of ultrasonic waves with the workpiece, the study of reflected, transmitted and scattered waves, the detection and characterization of macro defect detection, geometric characteristics measurement, organizational structure and mechanical property changes of the workpiece, and then its specific application Evaluation technology.
Ultrasonic testing technology is characterized by its wide application range, large penetrating ability, and portable equipment. Commonly used detection techniques include penetration method, reflection method, tandem method, liquid immersion method, etc. Can detect welds, castings, plates and profiles, etc. Ultrasonic testing is mainly used for internal quality testing, and surface quality is mainly used for magnetic particle testing, eddy current testing and penetrant testing.
The use of non-destructive testing technology is mainly distributed in three stages, the raw material production stage, the product manufacturing stage and the product in-service service stage.
