ultrasonic cleaner how it works

The ultrasonic wave propagates in the liquid, causes the liquid and the cleaning tank to vibrate together under the ultrasonic frequency, the liquid and the cleaning tank vibration has its own natural frequency, this kind of vibration frequency is the acoustic frequency, therefore people hear the hum. With the continuous development of the cleaning industry, more and more industries and enterprises have applied to the ultrasonic cleaning machine.
 

The principle of the ultrasonic cleaning machine is that the high frequency oscillation signal emitted by the ultrasonic generator is converted into the high frequency mechanical oscillation by the transducer and transmitted to the medium-cleaning solvent. The tiny bubbles in the liquid vibrate under the action of the sound field. These bubbles form and grow in the negative pressure region of ultrasonic longitudinal propagation, and in the positive pressure region, when the sound pressure reaches a certain value, the bubbles rapidly increase and then suddenly close. When the bubble closes, it produces a shock wave, which destroys the insoluble dirt and disperses them in the cleaning solution. When the group particles are coated by oil and adhere to the surface of the cleaning parts, the oil is emulsified, and the solid particles are separated from it, so as to achieve the purpose of cleaning parts. In this process, known as cavitation, bubble closure can create several hundred degrees of high temperatures and instantaneous high pressures of more than 1,000 barometric pressures.
 

The advantages of the ultrasonic cleaning machine are: the ultrasonic cleaning effect is good and the operation is simple. The sound that people hear is the sound wave signal with frequency 20-20000Hz. The sound wave above 20000Hz is called ultrasonic wave. The sound wave propagates longitudinally according to the sinusoidal curve and produces a large number of small bubbles. One reason is that the local tensile stress in the liquid forms a negative pressure, which makes the original dissolved gas supersaturated and escapes from the liquid into small bubbles; the other reason is that the strong tensile stress "tears" the liquid into a cavity, called cavitation.