Flaw detection device and application thereof

Abstract

The invention discloses a flaw detection device and application thereof. The flaw detection device comprises a reference power supply, a current detection circuit, a first probe connected with the positive electrode output end of the reference power supply and a second probe connected with the negative electrode output end of the reference power supply, two input ends of the current detection circuit are respectively connected with a third probe and a fourth probe, and an output end of the current detection circuit is connected with an ampere meter; wherein the reference power supply is used for loading reference voltage to an object to be detected, and the current detection circuit is used for detecting current change on the object to be detected. The device is simple in structure, smallin size, convenient to use and operate, free of missing detection, high in detection precision, wide in application range and high in popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of flaw detection, and in particular relates to a flaw detection device and its application. Background technique [0002] The technical regulations for the repair of the tenon teeth of aero-engines and gas turbines within the service life period require detection of defects such as cracks in the tenon teeth of the turbine disc. Conventional methods for measuring the crack defects of the tenon teeth of the turbine disc include fluorescence detection and X-ray detection. and ultrasonic testing, etc. However, if conventional methods such as fluorescent testing are used, it is difficult to find defects at the bottom and back of the tenon teeth of the turbine disc, so that the authenticity of the test cannot be fully reflected. Moreover, the detection method in the prior art has long detection period, high cost, and detection dead zone, and the detection parts must be taken to the detection instrument by profess...

AI Technical Summary

Problems solved by technology

[0002] The technical regulations for the repair of the tenon teeth of aero-engines and gas turbines within the service life period require detection of defects such as cracks in the tenon teeth of the turbine disc. Conventional methods for measuring the crack defects of the tenon teeth of the turbine disc include fluorescence detection and X-ray detection. and ultrasonic testing, etc. However, if conventional methods such as fluorescent testing are used, it is not easy to find defects at the bottom of the tenon and the back of the tenon of the turbine disc, so that the authenticity of the test cannot be fully reflected

Moreover, the detection method in the prior art has a long detection cycle, high cost, and detection dead zone, and the detection parts must be taken to the detection instrument by professional technicians to perform detection, which is helpless for on-site detection.

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