The following is an introduction to the main aspects and steps of its work, the principle of how the ultrasonic cleaning machine works and knowledge. Ultrasonic is a frequency higher than 20,000 hertz sound waves, it is good direction, penetrating ability, easy to get a more concentrated sound energy, in the water propagation distance, can be used for distance measurement, speed measurement, cleaning, welding, crushing, sterilization and so on. There are many applications in medicine, military, industry and agriculture. Ultrasound is named for its lower frequency limit which is approximately equal to the upper limit of human hearing. The principle of ultrasonic cleaning machine is mainly through the transducer, the power ultrasonic frequency source of acoustic energy into mechanical vibration, through the cleaning tank wall will be ultrasonic radiation to the cleaning fluid in the tank. As a result of ultrasonic radiation, so that the tank liquid in the micro-bubbles can be under the action of sound waves and thus maintain vibration. When the sound pressure or sound intensity is pressurized to a certain extent, the bubbles will expand rapidly and then suddenly close. In this process, the bubble closure of the moment to produce shock waves, so that the bubble around the pressure of 1012-1013pa and the Bureau of temperature, this ultrasonic cavitation generated by the enormous pressure can destroy the insoluble dirt and make them differentiated in solution, steam-type cavitation on the dirt of direct repeated impact.
On the one hand, the destruction of dirt and cleaning the surface of the adsorption, on the other hand, can cause fatigue damage to the layer of dirt and be refuted, gas-type bubble vibration on the solid surface scrubbing, dirt layer once there is a seam can be drilled, bubbles immediately "drilling" vibration to make the layer of dirt off, due to the role of cavitation, the two kinds of liquids at the interface quickly dispersed and emulsification. Emulsification, when the solid particles are wrapped in oil and adhering to the surface of the cleaning parts, the oil is emulsified, the solid particles fall off on their own, ultrasonic propagation in the cleaning fluid will produce positive and negative alternating acoustic pressure, the formation of jets, the impact of the cleaning parts, at the same time, due to the non-linear effect of acoustic and micro-acoustic flow will be generated, and ultrasonic cavitation in the solid and liquid interface will produce high-speed micro-jet, all of which can damage the dirt, remove or Weaken the boundary layer of dirt, increase agitation, diffusion, accelerate the dissolution of soluble dirt, strengthen the cleaning effect of chemical cleaning agents. It can be seen that wherever the liquid can be immersed and the acoustic field exists, there is a cleaning effect, and its characteristics are applicable to the cleaning of parts with very complex surface shapes. In particular, the use of this technology can reduce the amount of chemical solvents, thereby greatly reducing environmental pollution.
Second ultrasonic wave propagation in the liquid, so that the liquid and the cleaning tank in the ultrasonic frequency together with the vibration, the liquid and the cleaning tank vibration has its own inherent frequency, this vibration frequency is the acoustic frequency, so people hear the buzzing sound.
In addition, in the ultrasonic cleaning process, the naked eye can see the bubble is not a vacuum nucleus group bubble, but the air bubbles, which inhibit the cavitation effect reduces the cleaning efficiency. Only the air bubbles in the liquid is completely dragged away, the cavitation effect of the vacuum core group bubble to achieve the best results.