Fluorescent magnetic particle inspection is a non-destructive testing method that can detect defects on and near the surface of a component without damaging it. It is aware of the interaction between漏磁场 (leakage flux field) and magnetic particles within material defects. After a strongly magnetic material or workpiece is magnetized, the magnetic lines of force in the surface defects or near the surface deform, and when they break away from the surface, they form detectable leakage flux fields. Additionally, when magnetic particles are sprayed onto or magnetic suspension fluid is injected onto the surface of the workpiece, the magnetic particles of the fluorescent magnetic particle inspection machine are adsorbed in the defect area, indicating the location, shape, and size of the defects. This is the working principle of the fluorescent magnetic particle inspection machine.
Firstly, the fluorescent magnetic particle inspection machine offers rapid detection speeds, simple processing, and relatively low prices.
Next, it can directly display the size, shape, location, and severity of defects, determining the nature of the defects.
Thirdly, the fluorescent magnetic particle inspection machine can utilize various magnetization methods to detect various parts of the workpiece.
Fourth, the Fluorescent Magnetic Particle Inspection Machine boasts a high detection sensitivity, with the magnetic particle defects forming magnetic marks that exhibit an amplification effect.
Fifth, the fluorescent magnetic powder flaw detector detected a subcutaneous defect with a buried depth of 2-3 millimeters, up to 10 millimeters for large pores.
This is the working principle of the fluorescent magnetic particle inspection machine, which can clearly determine the presence or absence of defects without damaging the part. The cost of detection is very low, and the cost of post-discovery repairs is negligible compared to the cost of repairs during actual use.