超声波清洗由于其的清洗能力，无论被清洗对象是大还是小，清洗量是多还是少，或者形状多样，盲区较多，超声波都能保证可以获得其他清洗方式无法替代的清洁度和效果，那么您知道超声波清洗设备中的脱气功能是怎样的吗？

Because of its excellent cleaning ability, ultrasonic cleaning can ensure the cleanliness and effect that cannot be replaced by other cleaning methods, no matter whether the object to be cleaned is large or small, the amount of cleaning is large or small, or the shapes are diverse, and there are many blind areas. Do you know what the degassing function of ultrasonic cleaning equipment is?

超声波引入溶液中时，会产生交替压力，用于空化阈的声波在液体中传播时能够产生空化气泡并且能显着提高气体从溶液中到气泡的传质速率。空化气泡由溶液中微小的气核产生，在声波的稀疏相内由于张应力（负压力）的作用会产生这些空泡。

When ultrasonic wave is introduced into the solution, it will produce alternating pressure. When the sound 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 generated by tiny gas nuclei in the solution, and these bubbles will be generated due to the effect of tensile stress (negative pressure) in the sparse phase of sound waves.

如果张应力在空泡形成后继续存在，此时空化泡就会扩张到初始尺寸的许多倍。在这种情况下，空化泡保持球形结构，之后不断地增长、振动、崩溃。超声波作用时，溶液中气体成分可通过气-液界面“定向扩散”进入空化气泡，空化气泡进人生长阶段，当空化气泡在溶液表面崩溃时，气体会从气泡中逸出，这就造成了脱气作用。

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 ultrasound, 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, which causes degassing.

超声波脱气设备优点，泡沫为气泡的大量聚集，超声波脱气气设备是在泡沫生成前期、气泡未大量聚集前对液体进行消泡、脱气，或是对溶解、混合在液体内的气体进行消泡、脱气。整个过程不使用任何消泡剂，是完全的物理消泡方式，也可称作机械消泡方式。对于已经生成的表面泡沫，该设备作用不明显，需要配合消泡膜方式共同加以。

The advantage of ultrasonic degassing equipment is that foam is a large amount of bubble accumulation. Ultrasonic degassing equipment is to defoaming and degassing the liquid in the early stage of foam formation and before a large amount of bubbles gather, or defoaming and degassing the gas dissolved and mixed in the liquid. The whole process does not use any defoamer, which is a complete physical defoaming method, also known as mechanical defoaming method. For the generated surface foam, the effect of the equipment is not obvious, and it needs to be solved together with the defoaming film method.

脱气主要运用的是超声的“定向扩散”，一旦产生空化，内部还是有空气，在一些熔融液脱气纯化应用中以不产生空化佳。液体的空气排掉，减少超声波空化反应产生的气泡的阻力，增强超声波清洗机的清洗效率。还有一种作用就是超声波清洗机工作时间久了会产生一种超声波疲劳，减低清洗效果和效率，排氧脱气功能还可以这种超声波疲劳。

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

超声波清洗机生产厂家综合讲解后，可以看出超声波清洗设备的脱气功能是非常强大的，能更好的达到清洗目的，提高清洗效果。

After the comprehensive explanation of the manufacturer of ultrasonic cleaning machine, it can be seen that the degassing function of ultrasonic cleaning equipment is very powerful, which can better achieve the purpose of cleaning and improve the cleaning effect.

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