Adjustable T-type characteristic guided wave welding line detecting device

Abstract

The invention relates to an adjustable T-type characteristic guided wave welding line detecting device. The adjustable T-type characteristic guided wave welding line detecting device comprises a T-type main frame with a scale strip, a guided wave receiving probe loading arm with a reverse-T-type sliding block, two guided wave stimulating probe loading arms with reverse-T-type sliding blocks, two magnetism gauge bases with the reverse-T-type sliding blocks, two guided wave stimulating probes with sliding grooves, and a guided wave receiving probe with a sliding groove, wherein the two guided wave stimulating probes are parallelly arranged on the two sides of a to-be-detected welding line; the guided wave receiving probe is placed on the to-be-detected welding line, the three probes are arranged in a triangle manner and are fixed by a device magnetism gauge base, the probes and a to-be-detected body are contacted in a rigidity manner, a built-in spring is provided with pressing force, and the positions of the three guided wave probes are adjusted and are suitable for different width standards of the welding lines. The adjustable T-type characteristic guided wave welding line detecting device provided by the invention has the advantages that the two guided wave stimulating probes are simultaneously stimulated, the echo intensity in a required guided wave mode is greatly strengthened, the reflectivity is improved, meanwhile, the external disturbance is reduced, a measuring range is widened, and the detection efficiency and the detection accuracy are improved.

Description

technical field [0001] The invention relates to a characteristic guided wave detection device for weld defects, in particular to a T-shaped adjustable characteristic guided wave weld detection device, that is, when the characteristic guided wave is used for weld non-destructive testing, the adjustable characteristic guided wave The weld seam detection device can be adjusted according to the size of the weld seam to realize the detection of the linear weld seam area of ​​the plate welded member, and belongs to the field of non-destructive flaw detection. Background technique [0002] Welding is a key connection technology for many large components, and defects such as cracks, incomplete fusion, pores, undercuts, etc. will appear at the welds. Seams generally require a certain amount of ultrasonic or radiographic testing to ensure product quality. [0003] The traditional ultrasonic detection technology is a point-by-point scanning method, which is not only time-consu...

AI Technical Summary

Problems solved by technology

[0003] The traditional ultrasonic detection technology is a point-by-point scanning method, which is not only time-consuming and laborious, but also has certain blind spots

X-ray technology is widely used in the inspection of pressure vessel welds, but the preparation time for inspection is long, the risk is high, and the inspection cost is high

In addition, the above two methods can only realize offline detection. The detection process includes shutdown, emptying, cleaning, rust removal (even dismantling and heat preservation) and detection. There are disadvantages such as high detection cost and long detection time.

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