Ultrasonic cleaning is the use of the socialized effect of ultrasound in liquids, the extreme acceleration effect, and the direct inflow effect to directly or indirectly affect the liquid and dirt, causing the dirt layer to be peeled off by the dispersed emulsified electrode and achieving the cleaning purpose. Among the ultrasonic cleaning machines currently used, cavitation and direct inflow are more commonly used.

（1）空化作用：空化作用就是超（chāo）聲波以每秒（miǎo）兩萬次以上的壓縮力和減壓力交互性的高頻變換方式向液體進行透（tòu）射。在減壓力作用時，液（yè）體中產生真空（kōng）核群泡的（de）現象，在壓縮力作用時，真（zhēn）空核群泡受壓力壓碎時產（chǎn）生強大的衝擊力，由此剝離被清洗物表（biǎo）麵的汙垢，從而達到（dào）精密洗淨目的。

(1) Cavitation: Cavitation refers to 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.

（2）直進流作用：超聲波在液體中沿聲的傳播方向產生流動的現象（xiàng）稱為直進流。聲波強（qiáng）度在0.5W/cm2時，肉眼能看到直（zhí）進流，垂（chuí）直於振動麵產生流動，流（liú）速約為10cm/s。通過此直進流使被清洗物（wù）表麵的微油汙垢被攪拌，汙垢表（biǎo）麵的清洗液也產生對流，溶解汙物的溶解液與新液混合（hé），使溶解速度加快，對（duì）汙物的搬運起著很大的（de）作用。

(2) Direct inflow: 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, the naked eye can see a direct inflow, which generates flow perpendicular to the vibration surface, and the flow velocity is about 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：液體（tǐ）粒子推動產生的（de）加速度。對於頻（pín）率較高（gāo）的超聲波清洗機，空化作用就很（hěn）不顯著了，這時的清洗主要靠液體粒子超聲作（zuò）用下的加速度撞擊粒子對汙物進行超精密清洗。

(3) Acceleration: 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.

應注意以下問題：

The following issues should be noted:

極超聲波清洗機電（diàn）源及（jí）電熱器電源必須有良好接地裝置。

The power supply of the extreme ultrasonic cleaning machine and the power supply of the electric heater must have a good grounding device.

極超聲波清洗機嚴禁無清（qīng）洗液開機，即（jí）清洗缸沒有加一（yī）定數量的清洗液，不得（dé）合超聲波開關。

It is strictly prohibited to start the extremely ultrasonic cleaning machine without cleaning solution, that is, the cleaning cylinder does not add a certain amount of cleaning solution, and the ultrasonic switch cannot be turned on.

極（jí）有加熱（rè）設備的清洗設備嚴禁無液時打（dǎ）開加熱開關。

It is strictly prohibited to turn on the heating switch when there is no liquid in the cleaning equipment with extremely heating equipment.

極禁（jìn）止用重物(鐵件)撞擊清洗缸缸（gāng）底，以免能量（liàng）轉換（huàn）器晶片受損（sǔn）。

It is strictly prohibited to use heavy objects (iron parts) to impact the bottom of the cleaning cylinder to avoid damage to the energy converter chip.

極超（chāo）聲波發生器電源應單獨使用一路220V/50Hz電源並配裝2000W以上穩壓（yā）器。

The power supply of the polar ultrasonic generator should use a separate 220V/50Hz power supply and be equipped with a voltage regulator of over 2000W.

極清洗缸缸底要定期衝洗，不得有過多（duō）的雜物（wù）或汙垢。

The bottom of the extremely clean cylinder should be regularly rinsed without excessive debris or dirt.

極每次換新液時，待超聲波起動（dòng）後（hòu），方可洗件。

When changing the solution every time, wait for the ultrasonic to start before washing the parts.