Pracovní princip z ultrazvuk čištění

The principle of the Ultrasonic cleaning is that the high-frequency oscillation signal sent out by the ultrasonic generator is converted into high-frequency mechanical oscillation through the transducer and propagated to the medium -- cleaning solvent. The forward radiation of the ultrasonic wave in the cleaning solution makes the liquid flow and generate tens of thousands of straight diameters of 50-500 μ The tiny bubbles of m exist in liquid and vibrate under the action of sound field. These bubbles form and grow in the negative pressure zone where ultrasonic waves propagate longitudinally, while in the positive pressure zone, when the sound pressure reaches a certain value, the bubbles rapidly increase and then suddenly close. And when the bubble closes, a shock wave is generated, generating thousands of atmospheres around it, damaging insoluble pollutants and dispersing them in the cleaning solution. When group particles are wrapped in oil and adhere to the surface of the cleaning part, the oil is emulsified, solid particles are separated, and the cleaning part is purified. In this process known as the "cavitation" effect, the closure of bubbles can form high temperatures of several hundred degrees Celsius and instantaneous high pressures exceeding 1000 atmospheric pressures.

The advantages of Ultrasonic cleaning are: good ultrasonic cleaning effect and simple operation. The sound that people hear is an acoustic signal with a frequency of 20-20000Hz. The sound wave higher than 20000Hz is called an ultrasonic wave. The transmission of the sound wave propagates longitudinally according to the Sine wave, producing a large number of small bubbles. One reason is that the local tensile stress in the liquid forms negative pressure, and the reduction of pressure makes the gas dissolved in the liquid Supersaturation, and escapes from the liquid, becoming small bubbles; Another reason is that the strong tensile stress "tears" the liquid into a cavity, known as cavitation.