What is the structure and principle of ultrasonic cleaning machine

Ultrasonic cleaning machine is to use the principle of ultrasonic vibration to clean all kinds of precision equipment with complex geometry, so as to remove the dirt such as grease, radioactive substances, bloodstains and fine bacteria adhered on it (I) structure: the ultrasonic cleaning machine is mainly composed of three parts: ultrasonic generator, cleaning tank and box 1 Ultrasonic generator: it is composed of power transformer and rectifier system, oscillator, driving stage, power amplifier and output transformer 2 Cleaning tank: composed of stainless steel tank, composite transducer and matching inductor The transducer is dry at the bottom of the stainless steel tank, and there is a damping device between the stainless steel tank and the box frame 3 Box: the panel is equipped with ammeter, power switch, output socket, frequency phase power series adjustment knob; the back is equipped with power inlet socket and safety tube (2) working principle: the ultrasonic cleaning machine uses the high energy of ultrasonic to produce significant sound pressure effect on the material molecules When the ultrasonic vibration makes the liquid molecules closely arranged, the liquid molecules are under pressure: when the ultrasonic vibration makes the liquid molecules sparse, the liquid molecules are under the pulling force of outward dispersion Liquid molecules are more able to bear pressure, but under the action of tension, their arrangement is prone to fracture, which often occurs in the presence of impurities or bubbles in the liquid After the fracture of liquid molecules, there are many small bubble like cavities, which are closed in a very short time and generate a huge instantaneous pressure Generally, it can reach several dry MPa The huge instantaneous pressure can make the surface of the solid suspended in the liquid be destroyed rapidly This kind of ultrasonic pressure effect on the liquid and solid is called "hole erosion phenomenon" According to this principle, the oscillator of this machine is composed of an electronic tube, and the oscillation frequency is determined by the capacitance and inductance The potentiometer is used to control the feedback signal The oscillating signal is then transmitted to the driving stage through the capacitance of the pot, amplified by the class a power amplifier of the electronic tube, and then amplified by the power amplifier without the stage, and then transmitted to the transducer to convert the piezoelectric energy into mechanical energy, so as to generate ultrasonic vibration.