Ultrasonic flaw detection device and flaw detection method thereof

Abstract

The invention discloses an ultrasonic flaw detection device. The ultrasonic flaw detection device comprises a base, wherein a top end of the base is connected with a box body through screws; a right end of a front side of the box body is connected with a controller; a valve is connected to the center of a bottom end of a front side of the box body in a threaded manner; support legs are welded at the four corners of the top end of the base; a rotary mechanism is welded at the top ends of the support legs; a water pump is connected to the center of the back side of the box body through screws; the water pump is electrically connected with the controller; the water inlet of the water pump is in threaded connection with one end of a water inlet pipe; the other end of the water inlet pipe is inthreaded connection with the center of the bottom end of the back side of the box body; a water outlet of the water pump is in threaded connection with one end of a water outlet pipe; and the other end of the water outlet pipe is connected with the rotary mechanism. During use of the ultrasonic flaw detection device, steel tubes of different thicknesses can be detected, and the steel tubes can rotate uniformly to prevent missing of detection. The ultrasonic flaw detection device has the advantages of high automation degree, high detection efficiency and convenience in popularization.

Description

technical field [0001] The invention relates to the technical field of metal detection, in particular to an ultrasonic flaw detection device and a flaw detection method thereof. Background technique [0002] Ultrasonic flaw detection is a method for inspecting parts defects by using ultrasonic energy to penetrate deep into the metal material and pass from one section to another section, reflecting at the edge of the interface to inspect parts defects. Inside the metal, when a defect and the bottom surface of the part are encountered, reflected waves will be generated respectively, and pulse waveforms will be formed on the fluorescent screen. Based on these pulse waveforms, the position and size of the defect can be judged. Steel pipe is an important steel material widely used. Due to various factors in the production process of steel pipe, defects such as longitudinal cracks, transverse cracks, folding, and delamination often exist on the steel pipe wall. If the steel pipe ...

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Problems solved by technology

[0003] At present, most of the existing ultrasonic flaw detection devices are special-purpose steel pipe flaw detection, which can only detect steel pipes of the same thickness, and the steel pipe cannot be rotated during detection, resulting in easy detection omissions and low detection efficiency. Therefore, a fully automatic rotating Ultrasonic flaw detection device

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