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如何使用超聲波完成清洗項(xiàng)目

作者：admin來(lái)源：http://www.400qy.cn/時(shí)間：2021-01-26

超聲波清洗機(jī)是利用超聲波在液體中的社會(huì)化作用、加速度作用及直進(jìn)流作用對(duì)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。

Ultrasonic cleaning machine is the use of ultrasonic socialization in the liquid, acceleration and straight into the role of liquid and dirt direct and indirect role, so that the dirt layer is dispersed, emulsified, stripped to achieve the purpose of cleaning. At present, cavitation and direct inflow are widely used in ultrasonic cleaning machines.

（1）空化作用：空化作用就是超聲波以每秒兩萬(wàn)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。

(1) Cavitation: cavitation is the transmission of ultrasonic wave to the liquid by the high frequency transformation of the interaction of compression force and pressure reduction more than 20000 times per second. When the pressure is reduced, the vacuum core group bubbles will appear in the liquid. When the pressure is applied, the vacuum core group bubbles will have a strong impact when they are crushed by the 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(guò)程中，肉眼能看見(jiàn)的泡并不是真空核群泡，而是空氣氣泡，它對(duì)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 nuclear group bubbles, but air bubbles, which inhibit cavitation and reduce cleaning efficiency. Only when the air bubbles in the liquid are completely removed, the cavitation effect of vacuum core group bubbles can 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(chēng)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(guò)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(duì)流，溶解污物的溶解液與新液混合，使溶解速度加快，對(duì)污物的搬運(yùn)起著很大的作用。

(2) Straight inflow: the phenomenon that ultrasonic wave flows along the sound propagation direction in liquid is called straight inflow. When the intensity of acoustic wave is 0.5w/cm2, the straight flow can be seen by naked eye, and the flow is perpendicular to the vibrating surface, and the flow velocity is about 10cm / s. Through this straight forward flow, the micro oil dirt on the surface of the object to be cleaned is stirred, and the cleaning liquid on the dirt surface also has convection. The dissolving liquid dissolving the dirt is mixed with the new liquid, so that the dissolving speed is accelerated, 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(duì)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(duì)污物進(jìn)行超精密清洗。

(3) Acceleration: the acceleration of liquid particles. For the ultrasonic cleaning machine with higher frequency, the cavitation effect is not significant. At this time, the cleaning mainly relies on the acceleration of liquid particles under the ultrasonic effect to impact particles to clean the dirt.

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