A small number of ultrasonic cleaning machines scatter ultrasonic oscillators stuck to the bottom or wall of the cleaning tank too densely, placing them one by one. The input transducer's electrical power intensity reaches 2-3W per square centimeter. This height will accelerate the cavitation corrosion of the stainless steel plate surface (the surface in contact with the cleaning solution), shorten its service life, and on the other hand, due to excessive sound intensity. Large bubbles will form near the surface of the steel plate, increasing sound propagation loss and weakening the cleaning effect in areas far away from the transducer.

Therefore, in response to the issues introduced in the previous paragraph, it is recommended to use ultrasonic cleaning machines with a power intensity of less than 1.5W per square centimeter (calculated based on the area of the steel plate with the transducer attached) during use. If the cleaning tank is deep, in addition to the transducer attached to the bottom of the tank, the ultrasonic transducer should also be considered for bonding on the tank wall.

The bonding quality between the ultrasonic oscillator and the cleaning tank has a significant impact on the overall quality of the ultrasonic cleaning machine. It is not only necessary to bond firmly, but also requires a uniform adhesive layer, no lack of adhesive, and no cracks allowed to maximize the transmission of ultrasonic energy into the cleaning solution, in order to improve the overall power and cleaning effect of the machine. Some cleaning equipment now is designed to prevent ultrasonic transducers from falling off the cleaning tank. Adopting the method of fixing with screws and adhesive, although the ultrasonic oscillator will not fall off, there are many hidden dangers in this connection. If the quality of screw welding is checked, for example, if it is not perpendicular to the surface of the stainless steel plate, the adhesive layer will be uneven, even with cracks or missing adhesive, and energy transmission will be weakened; On the other hand, poor welding can also affect the flatness of the stainless steel surface, leading to accelerated cavitation corrosion and shortened service life.?

One of the ways to judge the bonding quality of an ultrasonic cleaning machine is to measure the temperature rise of the transducer after filling the cleaning tank with water and turning it on for a period of time. If the temperature rise of a transducer is particularly fast among many transducers, the ultrasonic oscillator may have poor adhesion on the surface. Because the sound radiation is not good at this moment, most of the electrical energy is consumed in the oscillator and generates heat. Another method is to measure the impedance of each oscillator one by one under small signal conditions? Use size to determine the quality of bonding.

There is still some vague common sense in the functionality of ultrasonic cleaning machines: it is believed that the higher the power, the more oscillators there are, the better the function and the higher the value, and even based on this, this knowledge is not comprehensive. As mentioned above, if the oscillator cloth is too dense and the power density is high, not only is the cleaning effect poor, but the groove is also prone to cavitation and corrosion. On the other hand, the power marked on ultrasonic cleaning machine products is mostly electrical power rather than acoustic power. If the marked refers to the consumption of power frequency, then the quality of ultrasonic cleaning machine products should be judged by power. If the power is low, it consumes a lot of electricity during the same cleaning process, which actually increases the cost for the user.

Article source: Jiangmen Ultrasonic Cleaning Machine http://www.kpzfcsb.com/