When cleaning, the frequency and power of ultrasonic waves are the most crucial points for whether we clean thoroughly or not, and also the most crucial points for checking ultrasonic cleaning machine price Whether the correct frequency can be chosen has also become a source of trouble for the vicious operators. I. Frequency Selection       Depending on the items to be cleaned, in the metal industry, such as hardware, machinery, automobiles and motorcycles, compressors, etc., cleaning machines with a frequency of 28KHZ are generally used. For the cleaning of some more high-tech electronic components, such as optical and optoelectronic cleaning, circuit board cleaning, etc., a frequency of 40KHZ is generally adopted. High-frequency ultrasonic cleaning machines are suitable for the fine cleaning of computers and microelectronic components, while megahertz ultrasonic cleaning is suitable for the cleaning of integrated circuit chips, silicon wafers and ultrasonic films. It can remove micron and sub-micron level dirt without causing any damage to the cleaned parts. However, for some precision cleaning applications (such as liquid crystals, semiconductors, etc.), using traditional frequencies not only fails to meet the cleaning requirements but may also cause damage to the workpieces. Ii. Power Selection     When it comes to the selection of frequency, we cannot neglect the choice of power either. The ultrasonic cavitation threshold is closely related to the frequency of ultrasonic waves. The higher the frequency, the higher the cavitation valve. In other words, the lower the frequency, the easier cavitation is to occur. Moreover, at low frequencies, the compression and thinning of the liquid have a longer time interval, allowing bubbles to grow to a larger size before collapsing, increasing the intensity of cavitation and facilitating the cleaning effect. Therefore, low-frequency ultrasonic cleaning is suitable for the surfaces of large components or situations where the adhesion between dirt and the surface of the object to be cleaned is high. However, it is prone to corroding the surface of the cleaning parts, is not suitable for cleaning components with high surface finish, and has a large cavitation noise. At a frequency of around 40KHZ, under the same sound intensity, the number of cavitation bubbles generated is greater than that at 20KHZ, and it has stronger penetrating power. It is suitable for cleaning workpieces with complex surface shapes or blind holes. The cavitation noise is relatively small, but the cavitation intensity is lower. It is suitable for cleaning occasions where the adhesion between dirt and the surface of the workpiece to be cleaned is weak.

      The above are the key points for choosing power and frequency when using an ultrasonic cleaner for cleaning. Of course, there are still many details that have not been fully explained, but the overall basic description is already in place. If implemented, it can also save a lot of detours. I hope such a description can be helpful to everyone.