Fluorescent magnetic particle flaw detector

Fluorescent magnetic particle this is a kind of magnetic particle for magnetic trace observation under ultraviolet (black light). It is made of magnetic powder as the core and a layer of fluorescent dye resin bonded on the outside. Under the irradiation of ultraviolet light, it can emit the most sensitive bright yellow green fluorescence with a wavelength of 510 ~ 550nm, which is accepted by human eyes, forming a high contrast with the surface color of the workpiece. Fluorescent magnetic particle has high detection sensitivity, and its visibility and contrast with the workpiece surface are much higher than that of non fluorescent magnetic particle. It is easy to observe, can improve the detection speed, and has a wide range of applications. Fluorescent magnetic powder is mostly us