Power density's selection of the he special ultrasonic cleaning machine for the material of NdFeB magnets

　　As everyone knows, when ultrasonic output reaches certain intensity, it can generate cavitation.

　　In water, generally the lowest power density should be greater than 0.3W/cm2, but if power density is too large, the cleaning ability will be improved, but it may have the potential to cause the workpiece surface's mechanical damage or cavitation corrosion. If power density is too small, the production efficiency will become too low, even the workpiece cleaning quality can not be up to the requirements.

　　The surface power density of ultrasonic cleaning machine with the material of NdFeB Magnets in general machinery processing industry, is 0.40 ～ 0.8W/cm2, body power density is about 25W/L. The surface power density of the special ultrasonic cleaning machine for the material of NdFeB magnets is about 0.6W/cm2, body power density is about 100W/L.