1. Cavitation effect

空化作用就是超聲波以每（měi）秒兩萬（wàn）次以上（shàng）的壓（yā）縮力和減壓力交互性的高頻變換方式向液體進行透射（shè）。在減壓力作用時，液體中產生真空核群泡的現象，在壓縮力作（zuò）用時，真空核群泡受壓力壓碎時產生強（qiáng）大的衝（chōng）擊力，由此剝離被清洗物表麵的汙垢，從而達到精密（mì）洗（xǐ）淨目的。

Cavitation is the high-frequency transformation of ultrasonic waves into a liquid through the interaction of compression force and pressure reduction at least 20000 times per second. During pressure reduction, a phenomenon of vacuum core bubbles is generated in the liquid. When compressed, the vacuum core bubbles generate a strong impact force when crushed by pressure, thereby stripping the dirt on the surface of the cleaned object and achieving precision cleaning.

在超聲波清洗過程中，肉眼能看見的泡並不是真空核群泡，而是空氣氣泡（pào），它對（duì）空化作用產生抑製作用（yòng）降（jiàng）低清洗效率。隻有液體中的空氣氣泡被完全脫走，空化（huà）作用的真空核群泡才能達到效果（guǒ）。

During the ultrasonic cleaning process, the visible bubbles are not vacuum core bubbles, but air bubbles, which inhibit cavitation and reduce cleaning efficiency. Only when the air bubbles in the liquid are completely removed can the vacuum core bubble of cavitation achieve its effect.

2.直進流作用

2. Direct inflow effect

超聲波在液體（tǐ）中沿聲的傳播方向產（chǎn）生流動的（de）現象稱（chēng）為直進流。聲波強度在0.5W/cm2時，肉眼能看到直進流（liú）?垂直於振動麵（miàn）產生流動，流速約為10cm/s。通（tōng）過此直進流使被清洗物表麵的微油汙垢被攪拌，汙垢表麵的清洗液（yè）也產生（shēng）對流，溶解汙物的溶解液與新液混合，使（shǐ）溶解速度加快，對汙物的搬運起著很大的作（zuò）用。

The phenomenon of ultrasonic waves flowing in the direction of sound propagation in a liquid is called direct inflow. When the sound wave intensity is 0.5W/cm2, can the naked eye see the direct inflow? Flow is generated perpendicular to the vibrating surface, with a flow rate of approximately 10cm/s. Through this direct inflow, the micro oil and dirt on the surface of the cleaned object are stirred, and the cleaning solution on the dirt surface also generates convection. The dissolved solution of the dirt is mixed with the new solution, which accelerates the dissolution rate and plays a significant role in the transportation of the dirt.

3.加速度作用

3. Acceleration effect

液體粒子推動產生的加速（sù）度。對於頻率較高的超聲波（bō）清洗機，空（kōng）化作用就很不顯著了，這時的清洗主要靠（kào）液體粒子超聲作用下的加速度撞擊粒子對汙物進行超精密清洗。

The acceleration generated by the propulsion of liquid particles. For high-frequency ultrasonic cleaning machines, the cavitation effect is not significant. At this time, the cleaning mainly relies on the acceleration of liquid particles under the ultrasonic action to impact particles for ultra precision cleaning of dirt.

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