Cleaning frequency of ultrasonic shock plate of ultrasonic cleaning machine

From: 焰东超声波  Date: 2020-07-10 09:46:09

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 ultrasonic cleaner has a lower frequency of the ultrasonic shock plate, the easier it is to produce cavitation, and at low frequencies, the liquid is compressed and thinned out for a longer time interval, so that the bubbles can grow to a larger size before disintegration , Increase the cavitation intensity, which is helpful for cleaning.

Therefore, the ultrasonic cleaning of the low-frequency ultrasonic shock plate is suitable for the appearance of large parts or places where the appearance of dirt and cleaning parts is highly combined. However, it is easy to corrode the surface of the cleaning parts, which is not suitable for cleaning the parts with high surface finish, and the cavitation noise is large. At a frequency of about 40KHZ, under the same sound intensity, the number of cavitation bubbles generated is more than when the frequency is 20KHZ, and the penetration force is strong. It is suitable to clean the workpiece with complex appearance or blind holes. Cavitation noise is small, but cavitation The strength is low, suitable for cleaning places where the dirt and the surface of the object to be cleaned are weak.

High-frequency ultrasonic cleaning is suitable for fine cleaning of computers and microelectronic components; Megahertz ultrasonic cleaning is suitable for cleaning integrated circuit chips, silicon wafers and wave films, which can remove micron and sub-micron-level dirt without any damage to the cleaning parts. Therefore, considering the cleaning effect and economy, the frequency is generally selected in the range of 20-130KHZ. Of course, the correct selection of the frequency of the ultrasonic vibration plate is very important, and the selection of the specific suitable working frequency needs to be obtained through certain experiments.

Previous：nodata Under：Routine maintenance of ultrasonic cleaning machine