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Is the frequency of ultrasonic cleaning transducer fixed?

Views: 8     Author: Site Editor     Publish Time: 2019-04-27      Origin: Site

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Our main products are ultrasonic transducer vibrators, ultrasonic generators, the main purpose is ultrasonic cleaning - the most commonly used ultrasonic dishwasher, frequency of immersible ultrasonic bath transducer is 28Khz 50W, clean ultrasonic dishwasher that you want to wash It has a large power and is generally used for large-scale commercial dishwashing.


Our company's annual spot supply frequency is 17KHZ/20KHZ/22KHZ/25KHZ/28KHZ/33KHZ/40KHZ/53KHZ/60KHZ/80KHZ/100KHZ/120KHZ/200KHZ cleaning transducer.


Ultrasonic vibrators, also known as ultrasonic vibrators, are called vibrators in the industry when the transducers are connected to the horns. The ultrasonic vibrator is realized by the piezoelectric effect of the piezoelectric ceramic to realize the mutual conversion of electric energy and mechanical energy (acoustic vibration), and the device is amplified by the acoustic impedance matching before and after the radiation cover block, and the frequency is fixed at the time of production, and can be followed. Customers' needs, custom transducers of different frequencies, and good ultrasonic cleaner transducer can only be fixed at this frequency.




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In addition to the ultrasonic dishwasher, how to choose the frequency of the ultrasonic vibrator when it is used in other fields?


In fact, the ultrasonic cavitation threshold is closely related to the frequency. The higher is the frequency, the higher is the cavitation threshold. The frequency is low, and the lower the cavitation threshold, the easier it is to cavitation. At low frequencies, the time between compression and sparse action of the liquid is longer. The bubble can grow to a larger size, enhance the cavitation strength, and facilitate the cleaning effect. Therefore, low-frequency transducer for ultrasonic cleaning is generally used on the surface of large parts or when the adhesion of dirt to the surface of the workpiece is high. However, it is easy to damage the surface of the workpiece. Therefore, parts with higher requirements on the surface of the workpiece are not suitable for selecting a lower frequency. Moreover, the frequency is low and the noise generated is correspondingly large. High-frequency ultrasonic penetration is strong, and it is better to clean components with high surface finish or complex surfaces and many blind holes. On the other hand, the high-frequency ultrasonic noise is also small, suitable for cleaning some precision parts, such as some electronic parts, small bearing processing, magnetic materials and so on. For some special workpieces such as integrated circuit chips and silicon wafer coating, it is better to select higher frequency ultrasonic waves for cleaning. For some large workpieces such as automobile engines, valves, and other large parts of the selected low-frequency ultrasonic cleaning. On the other hand ultrasonic cleaning effect and economic considerations, generally selected frequency 20 ~ 130KHz. The particular choice of appropriate frequency should be determined experimentally. In summary, the ultrasonic transducer frequency is fixed, so in the production, there will continue to test the frequency of eligibility procedures, strict accordance with the requirements to produce.

















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