The selection of the frequency range for ultrasonic cleaning machines is from 28kHz to 120kHz. Water or water cleaning agents should be used to ensure that the cavitation caused by physical cleaning force is significantly beneficial for low frequencies. But generally speaking, we use around 28-40 kHz, as cleaning products with narrow slits, small gaps, and deep holes is better. If we use high frequencies above 40 kHz, it will be even better. If broadband frequency modulation cleaning is chosen, the effect will reach a better level.

The selection of power, the function of ultrasonic cleaning machine does not necessarily have to be proportional to power, and sometimes small power may be used, which takes a long time but does not completely remove dust and dirt. If the power reaches a certain value, it may quickly remove dust and dirt. If the selected power is too high, the cavitation intensity will greatly increase, which will improve the cleaning effect. However, the accurate parts will have corrosion points, which is not worth the loss. If organic solvents such as trichloroethylene are used, there is basically no problem. When using water or water-soluble cleaning solutions, they are easily corroded by water points. If the surface of the oscillating plate is damaged, cavitation corrosion under high power will be more severe. Therefore, the ultrasonic power should be selected according to the actual usage conditions.

The selection of cleaning solution temperature is advocated by ultrasonic cleaning machine manufacturers. Water or water cleaning solution is more suitable for cleaning, and the temperature should be around 40-60 degrees Celsius. In cold climates, if the temperature of the cleaning solution is low and the cavitation effect is poor, the cleaning effect will deteriorate. Therefore, some cleaning machines control the temperature by heating the outside of the cleaning cylinder with an electric heating wire. An increase in temperature can easily cause air pockets, and the cleaning effect is better.

The factors that need to be considered in the treatment of cleaning parts for ultrasonic cleaning machines are the planning of the loading, unloading, and placement of cleaning fixtures. When the cleaning parts are in the ultrasonic cleaning tank, neither the cleaning parts nor the cleaning basket can touch the bottom of the tank. The total cross-sectional area of the cleaning parts should not exceed 70% of the cross-sectional area. Special attention should also be paid to cleaning insulated components. Improper planning of the tooling basket or excessive weight of the workpiece can greatly reduce the power of even a good ultrasonic cleaning machine system.

The confirmation of the location for cleaning parts generally requires that the cleaning solution level be at least 100 millimeters higher than the surface of the oscillator. Due to the influence of the standing wave field, the amplitude of the wave nodes in the single frequency sorting machine is very small. However, large amplitudes at the wave amplitude can lead to uneven cleaning, so the best choice for cleaning location should be placed at the wave amplitude.

Article source: Kaiping ultrasonic cleaning machine http://www.kpzfcsb.com/