Thin-walled tube weld joint ultrasonic detection device

Abstract

The invention belongs to the field of ultrasonic detection technologies and relates to a thin-walled tube weld joint ultrasonic detection device. The device comprises a plurality of single-section rail sheets, two encoders and a frame for fixing a probe; the above structures are connected together through springs and clamping keys; the single-section rail sheets include two kinds of single-sectionrail sheets; according to one kind of single-section rail sheet, two ends of the rail are provided with the encoders respectively; according to the other kinds of the single-section rail sheets, twoends of each rail are provided with sliding wheels respectively; one spring and one clamping key constitute a set of connecting components; two adjacent single-section rail sheets are connected through two sets of parallelly-arranged connecting components; the frame for fixing the probe is disposed between the plurality of single-section rail sheets; one side of the frame for fixing the probe is connected to the single-section rail sheet which is provided with the encoders through two sets of parallelly-arranged connecting components; the other side of the frame for fixing the probe is connected to the single-section rail sheet which is provided with the sliding wheels through two sets of parallelly-arranged connecting components; and a phased array probe can be fixed on the probe frame. With the thin-walled tube weld joint ultrasonic detection device of the invention adopted, risk operation caused by ray inspection can be decreased, and inspection efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic inspection, and in particular relates to an ultrasonic inspection device for weld seams of thin-walled pipes. Background technique [0002] Thin-walled pipes are widely used in engineering construction, petroleum, electric power industry, aerospace, nuclear power and nuclear energy and other fields. Various industry standards have put forward clear non-destructive testing requirements for the connection welds between pipes, and the requirements for important pipe welds are carried out. Volumetric examination (radiography or ultrasound). [0003] At present, due to the inherent characteristics of ultrasound and the constraints of weld reinforcement, conventional ultrasonic inspection is poor in identifying defects in thin-walled welds. At the same time, most industries do not have corresponding ultrasonic inspection specifications. Radiation is still the main method, especially in the field of ...

AI Technical Summary

Problems solved by technology

[0003] At present, due to the inherent characteristics of ultrasound and the constraints of weld reinforcement, conventional ultrasonic inspection is poor in identifying defects in thin-walled welds. At the same time, most industries do not have corresponding ultrasonic inspection specifications. Radiation is still the main method, especially in the field of nuclear power and nuclear energy, the welds of thin-walled pipes (mostly made of austenitic stainless steel, and ultrasonic inspection is more difficult) are used for pre-service and in-service inspections.

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