The advantage of ultrasonic degassing equipment is that the foam is a large number of bubbles. The ultrasonic degassing equipment is used to defoaming and degassing liquid before the beginning of the bubble formation, before the bubbles are gathered in large quantities, or to deactivate and deactivate the gas dissolved and mixed in the liquid. The whole process does not use any defoamer. It is a complete physical defoaming method, which can also be called mechanical defoaming method. For the surface foam that has been generated, the device has no obvious effect and needs to be solved in conjunction with the defoaming film.

脫氣主要運用的是超聲的“定向擴散”，一旦產生空化，內部還是有空氣，在一些熔融液脫氣純化應用中以不產生空化佳。液體的空氣排掉，減少超聲波空化反應產生的汽泡的阻力，增強超聲波清洗機的清洗效率。還有一種作用就是超聲波清洗機工作時間久了會產生一種超聲波疲勞，減低清洗效果和效率，排氧脫氣功能還可以消除這種超聲波疲勞。

Degassing mainly uses ultrasonic "directional diffusion". Once cavitation occurs, there is still air inside. In some melt degassing and purification applications, it is best not to produce cavitation. The liquid air is discharged to reduce the resistance of bubbles generated by ultrasonic cavitation reaction and enhance the cleaning efficiency of ultrasonic cleaning machine. Another function is that the ultrasonic cleaning machine will produce ultrasonic fatigue after working for a long time, which can reduce the cleaning effect and efficiency. The oxygen exhaust and degassing function can also eliminate this ultrasonic fatigue.

綜上，可以看出超聲波清洗設備的脫氣功能是非常強大的，而納博科超聲生產的超聲波清洗機都標配集成有脫氣功能，能更好的達到清洗目的，提高清洗效果。

In conclusion, it can be seen that the degassing function of ultrasonic cleaning equipment is very powerful, and the ultrasonic cleaning machines produced by naboko ultrasonic are equipped with degassing function as standard, which can better achieve the purpose of cleaning and improve the cleaning effect.

超聲波引入溶液中時，會產生交替壓力，用于空化閾的聲波在液體中傳播時能夠產生空化氣泡并且能顯著提高氣體從溶液中到氣泡的傳質速率。空化氣泡由溶液中微小的氣核產生，在聲波的稀疏相內由于張應力（負壓力）的作用會產生這些空泡。

When the ultrasonic wave is introduced into the solution, it will produce alternating pressure. When the acoustic wave used for cavitation threshold propagates in the liquid, it can produce cavitation bubbles and significantly improve the mass transfer rate of gas from the solution to bubbles. Cavitation bubbles are produced by tiny gas nuclei in solution. These bubbles will be produced due to the action of tensile stress (negative pressure) in the sparse phase of sound wave.

如果張應力在空泡形成后繼續存在，此時空化泡就會擴張到初始尺寸的許多倍。在這種情況下，空化泡保持球形結構，之后不斷地增長、振動、崩潰。超聲波作用時，溶液中氣體成分可通過氣-液界面“定向擴散”進入空化氣泡，空化氣泡進人生長階段，當空化氣泡在溶液表面崩潰時，氣體會從氣泡中逸出，這就造成了脫氣作用。

If the tensile stress continues to exist after the cavitation is formed, the cavitation bubble will expand to many times its initial size. In this case, the cavitation bubble maintains a spherical structure, and then continues to grow, vibrate and collapse. Under the action of ultrasonic, the gas components in the solution can enter the cavitation bubble through the "directional diffusion" of the gas-liquid interface, and the cavitation bubble enters the growth stage. When the cavitation bubble collapses on the surface of the solution, the gas will escape from the bubble, resulting in degassing.

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