I don't know if you have understood that the quality of an ultrasonic cleaning machine mainly depends on the following points: frequency, power, cleaning solution temperature and cleaning process.

关于清洗机的频率：

Frequency of cleaning machine:

从28 kHz 到 120kHz 之间，在使用水或水清洗剂时由空穴作用引起的物理清洗力显然对低频有利，一般使用 28-40kHz 左右。对小间隙、狭缝、深孔的零件清洗，用高频（一般 40kHz 以上）较好，甚几百 kHz 。

From 28 kHz to 120 kHz, when using water or water cleaning agent, the physical cleaning force caused by hole action is obviously beneficial to low frequency, generally about 28-40 kHz. For parts with small gaps, slits and deep holes, high frequency (generally above 40KHz) is better, even hundreds of kHz.

关于清洗机的功率：可以细分为两种情况

About the power of the cleaning machine: it can be divided into two cases

1、小功率，花费很长时间也没有污垢。而如果功率达到一定数值，很快便将污垢去除。

1. Low power, took a long time and did not remove dirt. If the power reaches a certain value, the dirt will be removed soon.

2、大功率，空化强度将大大增加，清洗效果是提高了，但这时较精密的零件也产生了蚀点，而且清洗机底部振动板空化严重，水点腐蚀也增大。

2. With high power, the cavitation intensity will be greatly increased and the cleaning effect will be improved, but at this time, the more precise parts also produce corrosion spots, and the vibration plate at the bottom of the cleaning machine has serious cavitation and water spot corrosion.

关于清洗机清洗液温度：

About the cleaning fluid temperature of the cleaning machine:

水清洗液适宜的清洗温度为 40-60℃ ，尤其在天冷时若清洗液温度低空化效应差，清洗效果也差。因此有部分清洗机在清洗缸外边绕上加热电热丝进行温度控制，当温度升高后空化易发生，所以清洗效果较好。

The optimum cleaning temperature of water cleaning solution is 40-60 ℃, especially in cold weather. If the temperature of cleaning solution is low and the cavitation effect is poor, the cleaning effect is also poor. Therefore, some cleaning machines wrap heating wires around the outside of the cleaning cylinder for temperature control. When the temperature rises, cavitation is easy to occur, so the cleaning effect is good.

关于清洗工艺： 明确被洗件的材料构成、结构和数量， 分析并明确要的污物，这些都是决定所要使用什么样的清洗方法，判断应用水性清洗液还是用溶剂的先决条件。后才决定选择哪种清洗机工艺。

About the cleaning process: clarify the material composition, structure and quantity of the washed parts, analyze and clarify the dirt to be removed, which are the prerequisites for determining what cleaning method to use and judging whether to use aqueous cleaning solution or solvent. Finally, decide which cleaning machine process to choose.

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