超声波清洗机就是用来清洗物品的机器，利用超声波的原理进行清洗，被清洗的物品通过声波可以在水中传播，而达到清洗的结果。下面来超声波清洗设备厂家讲讲超声波清洗机的超声波频率及功率密度的相关内容吧。

Ultrasonic cleaning machine is a machine used to clean objects. It uses the principle of ultrasonic to clean. The cleaned objects can be spread in the water through sound waves to achieve the results of cleaning. Next, let's talk about the ultrasonic frequency and power density of the ultrasonic cleaning machine.

超声波频率

Ultrasonic frequency

超声波频率决定空化泡破裂产生冲击波的强度，超声波清洗的频率一般在20~100Khz之间。对于表面粗糙度要求较高，、具有小直径孔或狭缝的零件，宜用波长较短、能量集中的高频超声波清洗(一般40Khz以上)较好。

The ultrasonic frequency determines the intensity of shock wave generated by cavitation bubble rupture. The frequency of ultrasonic cleaning is generally between 20~100khz. For parts with high surface roughness requirements and small diameter holes or slits, it is better to use high-frequency ultrasonic cleaning with short wavelength and concentrated energy (generally above 40KHz).

但高频超声振动在清洗液中衰减较大，作用距离较短，空化强度也较弱，清洗效率较低，而且由于高频的方向性而产生的“阴影”区，使零件某些部位清洗不到。

However, the high-frequency ultrasonic vibration attenuates greatly in the cleaning fluid, the action distance is short, the cavitation intensity is weak, and the cleaning efficiency is low. Moreover, some parts of the parts cannot be cleaned due to the "shadow" area generated by the high-frequency directivity.

在使用无频率跟踪的超声清洗装置时，需要经常调节发生器的频率旋扭，使其输出信号的频率与换能器的固有振动频率保持一致。此时空化强，在透明的清洗液中可以看到白色的聚流用手试探时有针刺感。在使用水或水洗剂时，由于空化作用引起的物理清洗力对低频有利，一般用15~30Khz的超声波。

When using the ultrasonic cleaning device without frequency tracking, it is necessary to often adjust the frequency rotation of the generator to make the frequency of its output signal consistent with the natural vibration frequency of the transducer. At this time, the cavitation is strong, and white accumulation can be seen in the transparent cleaning solution. There is a sense of acupuncture when testing with your hand. When using water or water detergent, the physical cleaning force caused by cavitation is beneficial to low frequency, and generally 15~30khz ultrasonic wave is used.

超声波的功率密度

Ultrasonic power density

超声波的功率密度对超声波的清洗效率影响很大。使用超声波清洗的主要参数就是功率，或者确切的说，是清洗槽内被清洗工件表面的功率密度的大小，它直接影响到超声声强的大小，声强大小又是直接影响空化效果的因素。超声波清洗的效果不一定完全与功率×清洗时间成正比。

The power density of ultrasonic wave has a great influence on the cleaning efficiency of ultrasonic wave. The main parameter of ultrasonic cleaning is power, or to be exact, the power density of the cleaned workpiece surface in the cleaning tank, which directly affects the ultrasonic sound intensity, which is a factor that directly affects the cavitation effect. The effect of ultrasonic cleaning is not necessarily completely related to power × It is proportional to the cleaning time.

可以想象有时用小功率的清洗机，花费很长时间也不会有特别明显的效果，如果当大功率超声波清洗机功率达到一定值，则可以很快将污垢去除。但功率过大空化强度将大大增加，清洗效果是提高了，但会使较精密的零件产生蚀点得不偿失，而且超声波底部振动处空化严重，很容易受到水点腐蚀减少超声波清洗剂的寿命。

It can be imagined that sometimes using a low-power cleaning machine will take a long time and will not have a particularly obvious effect. If the power of a high-power ultrasonic cleaning machine reaches a certain value, the dirt can be removed quickly. However, if the power is too large, the cavitation intensity will be greatly increased, and the cleaning effect will be improved, but the more precise parts will have corrosion spots. Moreover, the cavitation at the vibration place at the bottom of the ultrasonic is serious, which is easy to be corroded by water spots, reducing the service life of the ultrasonic cleaning agent.

太强的声强会造成空化泡过多，形成声波屏障，是声波不容易传导到液体空间。在远离声源的地方声波强度会减弱很快，不能形成有效的清洗。超声波的功率密度越大空化作用越强其清洗效果越好，对表面污垢严重、形状复杂、有深孔盲孔零件，应选用较大的功率密度。频率20~50Khz，超声波能量密度为2~3W/cm?好；一般情况下，超声波清洗机的功率密度设在0.5～1W/cm?。

Too strong sound intensity will cause too many cavitation bubbles and form a sound wave barrier, which makes it difficult for sound waves to be transmitted to the liquid space. At a place far away from the sound source, the intensity of the sound wave will weaken quickly and cannot form an effective cleaning. The greater the power density of ultrasonic, the stronger the cavitation effect, and the better the cleaning effect. For parts with serious surface dirt, complex shape, deep hole and blind hole, a larger power density should be selected. The frequency is 20~50khz, and the ultrasonic energy density is 2~3w/cm? Good; Generally, the power density of ultrasonic cleaning machine is set at 0.5 ~ 1W / cm?.

超声波清洗机的超声波频率及功率密度分析就到这里吧，您在使用之前建议是多去了解该机器的相关的事项，这样才能顺利的使用下来，更多事项就来我们网站www.jnthcsb.com咨询吧。

That's all for the ultrasonic frequency and power density analysis of the ultrasonic cleaning machine. Before using it, you'd better learn more about the relevant matters of the machine, so that it can be used smoothly. For more matters, please come to our website www.jnthcsb.com for consultation.