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超聲波清洗機(jī)是怎么工作的？

作者：admin來(lái)源：http://www.zhuohengsh.com/時(shí)間：2021-02-23

超聲波清洗機(jī)是利用超聲波的高頻率，通過(guò)換能器轉(zhuǎn)化為高頻動(dòng)能，然后作用于清洗槽中的液體介質(zhì)，使液體產(chǎn)生空化作用，不斷的形成無(wú)數(shù)個(gè)細(xì)微氣泡，并迅速爆裂，產(chǎn)生沖擊力沖擊物件表面，使表面污垢脫離，從而達(dá)到清洗的效果。

Ultrasonic cleaning machine is to use the high frequency of ultrasonic, through the transducer into high-frequency kinetic energy, and then act on the liquid medium in the cleaning tank, so that the liquid has cavitation effect, constantly forming countless tiny bubbles, and rapidly burst, producing impact force on the surface of the object, so that the surface dirt is separated, so as to achieve the effect of cleaning.

那么具體是怎么工作的呢？在介紹這個(gè)工作原理之前，我們先來(lái)了解一下，什么是超聲波？超聲波是科學(xué)家們將每秒鐘振動(dòng)的次數(shù)稱為聲音的頻率，它的單位是赫茲(Hz)。我們?nèi)祟惗淠苈?tīng)到的聲波頻率為20Hz～20000Hz(20KHz)。當(dāng)聲波的振動(dòng)頻率小于20Hz或大于20KHz時(shí)，我們便聽(tīng)不見(jiàn)了。

So how does it work? Before introducing this working principle, let's first understand what is ultrasound? Ultrasound is the number of vibrations per second scientists call the frequency of sound, and its unit is Hertz (Hz). The frequency of sound waves that our human ears can hear is 20Hz ~ 20000hz (20kHz). When the vibration frequency of sound wave is less than 20Hz or more than 20kHz, we can't hear it.

因此，我們把頻率高于20000赫茲的聲波稱為“超聲波”。這里說(shuō)明下，許多人在使用超聲波清洗機(jī)時(shí)，聽(tīng)到嗡嗡聲，就以為是超聲波發(fā)出的聲音，其實(shí)那只是液體在空化作用下產(chǎn)生的聲音。

Therefore, we call the sound wave whose frequency is higher than 20000 Hz "ultrasonic wave". Here's an explanation. When many people use the ultrasonic cleaning machine, when they hear the buzzing sound, they think it's the sound of ultrasonic. In fact, it's just the sound of liquid cavitation.

超聲波清洗機(jī)上的超聲波頻率一般是28KHz以上。高可達(dá)128KHz以上，常用的是40KHz，這個(gè)頻率比較通用，適合大多數(shù)工件的清洗。頻率越低，清洗的細(xì)膩度就越低，但力度會(huì)強(qiáng)些。

The ultrasonic frequency of ultrasonic cleaning machine is generally more than 28kHz. Up to 128khz, commonly used is 40KHz, this frequency is more common, suitable for most workpiece cleaning. The lower the frequency, the lower the fineness of cleaning, but the strength will be stronger.

反之，則清洗的越精細(xì)，但力度會(huì)減弱。然后把這種頻率通過(guò)換能器又稱超聲波驅(qū)動(dòng)電源、電子箱、超聲波控制器，是大功率超聲系統(tǒng)的重要組成部分。在高頻率的超聲波推動(dòng)下，換能器以每秒數(shù)十萬(wàn)次的頻率震動(dòng)，這種震動(dòng)傳遞到緊扣在上面的清洗槽上，透過(guò)清洗槽將動(dòng)能傳遞到槽內(nèi)的液體中。在這種高頻率的震動(dòng)下，液體就會(huì)產(chǎn)生空化作用。

On the contrary, the more fine the cleaning, but the strength will be weakened. Then the frequency is passed through the transducer, also known as ultrasonic driving power supply, electronic box and ultrasonic controller, which is an important part of high-power ultrasonic system. Driven by high-frequency ultrasound, the transducer vibrates hundreds of thousands of times per second. This vibration is transmitted to the cleaning tank tightly above, through which kinetic energy is transferred to the liquid in the tank. In this high frequency vibration, the liquid will produce cavitation.

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