Technical

      Ultrasonic cleaning equipment uses the cavitation, acceleration and direct flow of ultrasonic waves in the liquid to directly and indirectly clean the liquid and dirt, so that the dirt layer is dispersed, emulsified, peeled off to achieve the purpose of cleaning. Ultrasonic cleaning In the ultrasonic cleaning machines currently used, cavitation and direct inflow are used more.

       (1) Cavitation: Cavitation is the transmission of ultrasonic waves to the liquid in the form of high-frequency transformation of compressive force and pressure reduction interactively more than 20,000 times per second. When the pressure is reduced, the vacuum nucleus group bubbles are generated in the liquid. When the ultrasonic cleaning is under the action of the compressive force, the vacuum nucleus group bubbles are crushed by the pressure to generate a strong impact force, thereby peeling off the dirt on the surface of the object to be cleaned. To achieve the purpose of precise cleaning.

       (2) Direct inflow effect: The phenomenon that ultrasonic waves flow in the direction of sound propagation in liquid is called direct inflow. When the sound wave intensity is 0.5W/cm2, the direct inflow can be seen by the naked eye, and the flow is generated perpendicular to the vibration surface, and the flow rate is about 10cm/s. Through this direct flow, the micro-oil dirt on the surface of the object to be cleaned is stirred, and the cleaning solution on the surface of the dirt also produces convection, and the dissolved solution that dissolves the dirt is mixed with the new solution, which accelerates the dissolution speed and plays a very important role in the transportation of the dirt. big effect.

      (3) Acceleration: The acceleration generated by the push of liquid particles. For ultrasonic cleaning with a higher frequency ultrasonic cleaning machine, the cavitation effect is very insignificant. At this time, the cleaning mainly relies on the acceleration of liquid particles under the action of ultrasonic to impact the particles to perform ultra-precision cleaning of the dirt.