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.

關于清洗機的頻率：

Frequency of cleaning machine:

從28 kHz 到 120kHz 之間，在使用水或水清洗劑時由空穴作用引起的物理清洗力顯然對低頻有利，一般使用 28-40kHz 左右。對小間隙、狹縫、深孔的零件清洗，用高頻（一般 40kHz 以上）較好，甚至幾百 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.

關于清洗機的功率：可以細分為兩種情況

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

1、小功率，花費很長時間也沒有清除污垢。而如果功率達到一定數值，很快便將污垢去除。

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，空化強度將大大增加，清洗效果是提高了，但這時較精密的零件也產生了蝕點，而且清洗機底部振動板空化嚴重，水點腐蝕也增大。

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.

關于清洗機清洗液溫度：

About the cleaning fluid temperature of the cleaning machine:

水清洗液適宜的清洗溫度為 40-60℃ ，尤其在天冷時若清洗液溫度低空化效應差，清洗效果也差。因此有部分清洗機在清洗缸外邊繞上加熱電熱絲進行溫度控制，當溫度升高后空化易發生，所以清洗效果較好。

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.

關于清洗工藝： 明確被洗件的材料構成、結構和數量， 分析并明確要清除的污物，這些都是決定所要使用什么樣的清洗方法，判斷應用水性清洗液還是用溶劑的先決條件。后才決定選擇哪種清洗機工藝。

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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