High-frequency and low-frequency effects of ultrasonic cleaning machineDate: 2022-10-24Number: 229
When purchasing an ultrasonic cleaning machine, you need to know the following
1. So choose ultrasonic cleaner power is less, even if long-term use, will not completely remove stains. Therefore, the selected power is relatively large, although in a short time to quickly remove oil pollution, but also to be cleaned the target can bring some damage. Therefore, the choice of ultrasonic cleaning machine, must choose the appropriate power.
2. When the power is too high, the vibrating plate at the bottom of the cylinder will cavitate more seriously, and the water corrosion will also expand. Therefore, it is likely that choosing organic solvents such as trichloroethene will not be a problem, but if the choice is water or water-soluble cleaning fluid, so it will be eroded by water bleaching.
3. When the power is too high
When the power of ultrasonic cleaning machine is high, the sound intensity increases, the cavitation bubble radius and the starting radius increase, and the cavitation intensity increases. That is, the greater the sound intensity, the stronger the cavitation, useful for cleaning. But it is not the bigger output power, the better cleaning effect, but the right and reasonable selection of ultrasonic power.
4. Small power error
The bigger the sound power is, the more serious the cavitation effect is, the more useless bubbles are produced, the diffraction attenuation is increased, and the sound barrier is produced. At the same time, the higher the sound intensity, the greater the nonlinear attenuation, which will affect the cleaning effect of the parts to avoid the sound source. In addition, the cavitation corrosion of cleaning vibrating plate is more serious, resulting in reduced service life of equipment. If the ultrasonic cleaning power is too small, will affect the workpiece cleaning time, cleaning time will be longer, and even deviate from the cleaning effect.
For those who do not know much about ultrasonic cleaning equipment, it is best to choose and purchase ultrasonic cleaning equipment, consult the manufacturer to grasp the details, and tell the cleaning product name, size, cleaning volume approximately, manufacturers will be based on the spot is also the need to customize recommendations, completely do not have to worry about the purchase of equipment is not suitable for cleaning their own products.
High-frequency and low-frequency effects of ultrasonic cleaning machines
The ultrasonic cavitation threshold is closely related to the frequency. The higher the frequency, the larger the cavitation threshold. The lower the frequency and the lower the cavitation threshold, the greater the probability of cavitation. At low frequencies, liquids are compressed and thinned over long intervals. So that the bubble can grow to a larger size, enhance cavitation strength, useful for cleaning. Therefore, the low-frequency ultrasonic cleaning for large parts of the surface or stains and workpiece surface adhesion is high. But easy to damage and corrosion of the workpiece surface. Therefore, parts with high surface requirements are not suitable for choosing relatively low frequencies. Low frequency, the resulting noise is correspondingly large.
7. Select the frequency for each situation
High-frequency ultrasonic penetrating force, mainly used for the surface smoothness requirements of strict or complex surface, more blind holes for cleaning parts. At the same time, high-frequency ultrasonic noise is also small, mainly used to clean some precision parts, such as some electronic parts, small bearing processing, magnetic materials. And for some special parts, such as IC chips, silicon plating on the choice of relatively high frequency of ultrasonic cleaning is better. For some large parts, such as automotive engines,