A curved surface self-coupling automatic flaw detector for explosive welding and its application

Abstract

The invention discloses a curved-surface self-coupling automatic flaw detector for explosive welding. The curved-surface self-coupling automatic flaw detector is provided with a flaw detection pool, a coupling probe and analyzers. Sliding rails are arranged at the two sides of the flaw detection pool, the analyzers slide on the sliding rails, and the bottom of a rotary rod is connected with the coupling probe. The coupling probe is provided with a plurality of independent probe telescopic air cylinders, a sub-probe is arranged in each probe telescopic air cylinder, and a clearance exists between every two adjacent probe telescopic air cylinders. A water injector is arranged on the upper portions of the probe telescopic air cylinders, and the clearance between every two adjacent probe telescopic air cylinders is communicated with the water injector. The curved-surface self-coupling automatic flaw detector has the advantages that the height of the small probes can be automatically adjusted through the probe of the self-coupling flaw detector according to the curved surface, coupling on the whole curved surface is guaranteed, a rotary joint of the probe can rotate by any angle to guarantee the proper flaw detection angle, the precise reliability of an ultrasonic nondestructive inspection explosive welding composite plate is greatly improved through the automatic flaw detector, and production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of flaw detection, in particular to a curved surface self-coupling automatic flaw detector for explosive welding and its application. Background technique [0002] Explosion welding is a solid phase welding method that is commonly used for welding dissimilar metals. This welding method can obtain a very strong welded interface. Explosive welding is especially suitable for the welding of some metal materials with different chemical compositions and physical properties, which is difficult to achieve with other welding methods. As a special welding method, explosive welding has played a great role in material compounding. At present, composite materials have been widely used in automotive, aircraft, environmental protection and petrochemical industries. [0003] Ultrasonic non-destructive testing is to use the characteristics of ultrasonic waves to detect whether there are defects or inhomogeneity in the ins...

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Problems solved by technology

[0004] However, in the explosive welding industry, due to the serious warping deformation at both ends of the plate after the explosion, the existing automatic flaw detector probe can only detect the plate with a flat surface, and the coupling of the probe cannot be realized for the curved plate, so it cannot meet the requirements of explosive welding. Plate flaw detection requirements

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