The principle of the Ultrasonic Cleaner is to convert the sound energy of the power ultrasonic frequency source into mechanical vibration through the transducer, and radiate the ultrasonic wave to the cleaning liquid in the tank through the cleaning tank wall. Due to the ultrasonic radiation, the microbubbles in the liquid in the tank can keep vibrating under the action of sound waves.When the sound pressure or sound intensity reaches a certain level, the bubble will expand rapidly and then suddenly close. During this process, shock waves are generated when the bubbles are closed, causing 1012-1013pa pressure and local temperature adjustment around the bubbles. The huge pressure generated by this ultrasonic cavitation can destroy insoluble dirt and make them differentiate in the solution. The direct and repeated impact of steam-type cavitation on dirt.