The Higher The Frequency Of Ultrasonic Cleaning Machine in The Laboratory, The Better?

Laboratory ultrasonic cleaning machine is a new type of cleaning equipment developed for the needs of high cleanliness in the laboratory. It can realize automatic cleaning of various experimental glassware and precision instruments, solve the shortcomings of traditional manual cleaning, which is time-consuming and laborious, and the effect is difficult to control. It can also prevent researchers from being exposed to harmful cleaning agents, and play a role in improving the laboratory cleaning environment.

As we all know, ultrasonic cleaning is based on cavitation effect, which is an important factor to determine the effect of ultrasonic cleaning, and the ultrasonic frequency will directly affect the cavitation effect. Therefore, many people will focus on the frequency when purchasing ultrasound cleaning machines for laboratories. We all know that frequency is the number of times a substance completes periodic changes in 1s. What is the ultrasonic frequency? As the name implies, it refers to the number of times the sound wave completes periodic changes in every second, such as 20KHz, that is, the sound wave generates 20000 vibrations per second.

Due to the different workpieces and dirt required to be cleaned in various industries, the ultrasonic cleaning frequency used is also different. The frequency of ultrasonic applied in cleaning field can be roughly divided into low frequency, medium frequency, high frequency and mega frequency. The frequencies commonly used for general cleaning are 28KHz, 40KHz, 68Khz, 80KHz, 120KHz, etc., of which 40KHz is the most widely used frequency in various industries. Faced with so many frequency choices, which frequency of the ultrasonic cleaner machine used in the laboratory is more appropriate?

The higher the frequency of ultrasonic cleaning machine in the laboratory, the better? The cavitation effect decreases with the increase of frequency. The frequency is low, and cavitation is easy to occur. The compression and rarefaction of cleaning liquid have a longer time interval, so that the cavitation bubble can grow to a larger size before blasting, and increase the cavitation intensity. It is generally applicable to areas with high adhesion between cleaning dirt and workpiece surface; High frequency ultrasound, on the contrary. It can be seen that medium and low frequencies are usually used to clean large particles of dirt, medium and high frequencies are used to clean micron scale dirt, and megafrequency is used to clean micron and submicron scale dirt. After the experiment, vessels and instruments usually have dirt particles of different sizes attached to the surface. Therefore, in the laboratory field, different ultrasonic frequency combinations can be selected according to the cleaning needs to achieve the best cleaning effect.