A non-destructive testing device for bionic intrusion of metal material capillary gap penetrant

Abstract

The invention relates to a non-destructive detection device for bionic intrusion of permeation liquid in capillary gaps of metal materials. Its structure includes: a protective shell, a stabilizer, a detection device, a liquid inlet pipe, and a liquid discharge pipe. The inside of the protective shell is embedded with a stabilizer and a detection device. The upper and lower surfaces of the stabilizer fit together, and the liquid inlet pipe is fixedly installed on the upper surface of the detection device. When performing non-destructive testing of liquid penetration of metal materials, the rapid expansion of the internal jumping ring of the jumping device makes the four rings of the jumping ring Expansion squeezes the chamber membrane filled with permeate. During the extrusion process, the chamber membrane receives enough instantaneous impact force to provide enough energy for the intrusion of the permeate to break through the tension barrier generated by the capillary gap inside the metal material and pass through the equal-length interval. Deepen the intrusion in a systematic way to penetrate into the end of the gap, measure all the gap pore data, reduce the error in the non-destructive testing of metal materials, and thus more accurately estimate the service life of the metal material.

Description

technical field [0001] The invention relates to a non-destructive testing device for bionic intrusion of metal material capillary gap penetrating liquid, and relates to the field of metal detection. Background technique [0002] Liquid penetration nondestructive testing of metal materials. After a penetrant containing fluorescent dyes or coloring dyes is applied to the surface of the parts, under the action of capillary tubes, after a period of time, the penetrating liquid can penetrate into the surface opening defects and remove the surface of the parts. After infiltration, an imaging agent is applied to the surface of the part to detect the morphology and distribution of defects. [0003] However, when inspecting the metal material that is bent and causes the internal metal to break and produce capillary gaps and the interior is porous and loose, there will be a certain tension due to the contact between many smaller gaps and voids and the permeate. Under the hindrance of ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a bionic intrusion non-destructive testing device for capillary crevices of metal materials, which solves the problem that the penetrating liquid is not deep enough into the capillary crevices of metal materials to cause certain errors in the results of non-destructive testing.

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