Abstract:In order to ensure the welding quality of the butt weld of the supercritical unit pipeline, ultrasonic testing is often used as a nondestructive testing method for the quality evaluation of the butt weld.In this paper, phased array testing technology, Ultrasonic time-of-flight diffraction(TOFD) testing technology and conventional A-type pulse ultrasonic testing technology were used to test the simulated test block. Experiments showed that the three methods can effectively detect slag inclusion, incomplete p… Show more
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