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Non-destructive inspection method for vehicle inspection line

Non-destructive inspection method for vehicle inspection line

[Abstract]:
Non-destructive method for detecting automobile inspection line Non-destructive testing is an indispensable and effective tool for industrial
Non-destructive method for detecting automobile inspection line
Non-destructive testing is an indispensable and effective tool for industrial development. It reflects the level of industrial development of a country to a certain extent. Of course, we also often use non-destructive testing on vehicle testing lines. These include:  
1. Radiographic inspection, which uses the attenuation characteristics of rays (X-rays, gamma rays, and neutron rays) propagating in a medium, when injecting a beam with uniform intensity from one side of the inspected part;    
2, magnetic powder detection, due to the defect and the matrix material of the magnetic properties (magnetic resistance) different through the magnetic field of the matrix will produce a bend in the defect and may escape the surface of the substrate, the formation of leakage magnetic field;  
3, eddy current testing, the alternating magnetic field close to the conductor (inspected parts), due to electromagnetic induction in the conductor will induce a closed circular current, which is eddy current;
4. Permeation detection, using the capillary phenomenon and the infiltrating effect of permeate on the inner wall of the defect, so that the permeate enters the defect. After the excess permeate is removed, the permeate in the residual defect can adsorb the imaging agent to form a higher contrast ratio. Size enlarged defect imaging.