Relationship between ultrasonic frequency and ultrasonic cleaning machine washing precision
Ultrasonic frequency is directly influence the accuracy of ultrasonic cleaning and the cleanness of the important factors, the ultrasonic cleaning machine with cavitation theory, mainly is the physical interaction, frequency and power are the most important two physical parameters. The influence of ultrasonic frequency on the cleaning of ultrasonic cleaning machine is mainly reflected in the effect of the cavitation effect, which is embodied in the:
Ultrasonic frequency is low, cavitation effect is stronger, cleaning machine noise is greater (ultrasonic wave itself is noise can not be formed, mainly cavitation is mechanical energy), ultrasonic transmitting the bubble is large, the bubble density is more scarce, ultrasonic impact force is stronger, decontamination force is more strong, on the workpiece in the cavitation corrosion effect is stronger, cleanliness is lower. The higher the frequency of the ultrasonic, cavitation effect is weak, cleaning machine noise is small, ultrasonic transmitting and the smaller the bubble, the bubble density is more dense, ultrasonic impact force is weaker, the stubborn dirt detergency is weak, and the workpiece and the cavitation erosion is small, cleaning cleanliness. Therefore, the large workpiece, dirt more serious with low and medium frequency ultrasonic cleaning, therefore, industrial ultrasonic cleaning machine used in the frequency range: 20-28KHZ; precision instruments, laboratory glassware etc. easy cleaning and cleaning device requires high cleanliness by high frequency ultrasound, general laboratory commonly used frequency of 40KHZ ultrasonic cleaner about; ultra high frequency ultrasonic cleaning device for precision requirements of high precision multi use minimal effect on cavitation corrosion of the workpiece, commonly used in the frequency range of 80-120KHZ.: sometimes, the same workpiece can select different ultrasonic frequencies were rough (low frequency) and washing (high frequency).