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常見問題

超聲波清洗機(jī)是如何完成清洗工作？

作者：admin來源：http://www.dijiushangdian.cn/時(shí)間：2020-10-01

眾所周知，超聲波清洗物品優(yōu)勢明顯，那么超聲波到底是如何完成清洗工作的呢？超聲波清洗是利用超聲波在液體中的空化作用、加速度作用及直進(jìn)流作用對液體和污物直接、間接的作用，使污物層被分散、乳化、剝離而達(dá)到清洗目的。目前所用的超聲波清洗機(jī)中，空化作用和直進(jìn)流作用應(yīng)用得更多。

As we all know, the advantages of ultrasonic cleaning are obvious, so how does ultrasonic finish the cleaning work? Ultrasonic cleaning is to use the cavitation, acceleration and direct inflow of ultrasonic in the liquid to directly and indirectly affect the liquid and dirt, so that the dirt layer is dispersed, emulsified and stripped to achieve the purpose of cleaning. At present, cavitation and direct inflow are more widely used in ultrasonic cleaning machines.

山東超聲波清洗機(jī)

Shandong ultrasonic cleaning machine

（1）空化作用：空化作用就是超聲波以每秒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(jìn)行透射。在減壓力作用時(shí)，液體中產(chǎn)生真空核群泡的現(xiàn)象，在壓縮力作用時(shí)，真空核群泡受壓力壓碎時(shí)產(chǎn)生強(qiáng)大的沖擊力，由此剝離被清洗物表面的污垢，從而達(dá)到精密洗凈目的。

超聲波清洗機(jī)生產(chǎn)廠家配件的介紹(圖1)

(1) Cavitation: cavitation is the ultrasonic transmission to the liquid by the interaction of compression force and pressure reduction of more than 20000 times per second. When the pressure is reduced, the vacuum core group bubbles appear in the liquid. When the compression force is applied, the vacuum core group bubbles will produce strong impact force when they are crushed by pressure, so as to peel off the dirt on the surface of the object to be cleaned, so as to achieve the purpose of precise cleaning.

在超聲波清洗過程中，肉眼能看見的泡并不是真空核群泡，而是空氣氣泡，它對空化作用產(chǎn)生抑制作用降低清洗效率。只有液體中的空氣氣泡被完全脫走，空化作用的真空核群泡才能達(dá)到佳效果。

In the process of ultrasonic cleaning, the bubbles visible to the naked eye 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 cavitation core group achieve the best effect.

（2）直進(jìn)流作用：超聲波在液體中沿聲的傳播方向產(chǎn)生流動(dòng)的現(xiàn)象稱為直進(jìn)流。聲波強(qiáng)度在0.5W/cm2時(shí)，肉眼能看到直進(jìn)流，垂直于振動(dòng)面產(chǎn)生流動(dòng)，流速約為10cm/s。通過此直進(jìn)流使被清洗物表面的微油污垢被攪拌，污垢表面的清洗液也產(chǎn)生對流，溶解污物的溶解液與新液混合，使溶解速度加快，對污物的搬運(yùn)起著很大的作用。

(2) Straight into the flow: ultrasonic in the liquid along the direction of sound propagation flow phenomenon known as straight flow. When the acoustic intensity is 0.5w/cm2, the direct inflow can be seen by naked eyes, and the flow is perpendicular to the vibration surface, and the velocity is about 10cm / s. Through this direct inflow, the micro oil and dirt on the surface of the object to be cleaned is stirred, and the cleaning fluid on the surface of the dirt also generates convection. The dissolving solution of the dirt is mixed with the new liquid to accelerate the dissolution speed, which plays a great role in the transportation of the dirt.

（3）加速度：液體粒子推動(dòng)產(chǎn)生的加速度。對于頻率較高的超聲波清洗機(jī)，空化作用就很不顯著了，這時(shí)的清洗主要靠液體粒子超聲作用下的加速度撞擊粒子對污物進(jìn)行超精密清洗。

(3) Acceleration: the acceleration caused by liquid particles pushing. For the ultrasonic cleaning machine with high frequency, the cavitation effect is not significant. At this time, the cleaning mainly depends on the acceleration of liquid particles under the ultrasonic effect to impact the particles on the dirt ultra precision cleaning.

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