超声波清洗机器涂装前处置工艺非常重要，一般保守工艺是脱脂、水洗、盐酸除锈、水洗、中和、水洗、表调、水洗、磷化、水洗、烘干。此工艺弊端是对结构复杂零件酸洗除锈后的残酸很难冲洗干净，尤其是焊接组合件磷化后，其夹缝内含有的残液影响后道工序的加工。工件喷涂后，时间不长沿着夹缝呈现锈蚀现象，波坏涂层表面。严重影响产品外观和内在质量。如摩托车车轮、油箱、车架、防盗门等。

It is very important to deal with the ultrasonic cleaning machine before painting. Generally, the conservative processes are degreasing, washing, hydrochloric acid derusting, washing, neutralizing, washing, surface conditioning, washing, phosphating, washing and drying. The disadvantage of this process is that it is difficult to clean the residual acid after pickling and derusting of complex structural parts, especially after phosphating of welded assembly parts, the residual liquid contained in the crevice affects the subsequent processing. After spraying, the surface of the coating is damaged due to corrosion along the joint after spraying for a short time. Seriously affect the appearance and internal quality of products. Such as motorcycle wheel, fuel tank, frame, anti-theft door, etc.

经过近几年对超声波清洗机技术在磷化处理中的研究实践，提高产品喷涂质量，防止涂装件返锈方面，已取得良好效果。

Through the research and practice of ultrasonic cleaning machine technology in phosphating treatment in recent years, good results have been achieved in improving the spraying quality of products and preventing rust return of coated parts.

一、超声波清洗机漂洗

1、 Rinse with ultrasonic cleaner

工件在除油、除锈、水洗、表调、磷化等工艺中渗透在焊接夹缝内的液体很难排出，且水洗不能完全清除干净，湿热条件下夹杂物极易造成工件泛黄、生锈。

In the process of oil removal, rust removal, water washing, surface adjustment and phosphating, the liquid penetrating into the welding seam is difficult to be discharged, and the water washing can not completely remove it. The inclusions are very easy to cause yellowing and rusting of the workpiece under hot and humid conditions.

如果这些残液在烘干过程中不能完全干固，随后粉末喷涂以高温烘干时，残液由于热膨胀的作用将渗出焊缝，影响涂料与金属表面的结合，造成涂层的附着力下降甚至脱离。

If these residues can not be completely dried during the drying process, then when the powder spraying is dried at high temperature, the residual liquid will seep out of the weld due to the thermal expansion, which will affect the adhesion between the coating and the metal surface, resulting in the decrease or even detachment of the coating adhesion.

二、超声波清洗机工艺参数

2、 Process parameters of ultrasonic cleaning machine

超声波清洗温度是影响清洗速度的重要因素，适当提高清洗温度可增加空化能力、缩短清洗时间，但超越一定温度，由于蒸气压力增加反而降低空化作用，因此必需坚持一定的温度。试验标明水溶性介质一般在50℃±5效果好。

Ultrasonic cleaning temperature is an important factor affecting the cleaning speed. Properly increasing the cleaning temperature can increase the cavitation capacity and shorten the cleaning time. However, if the temperature exceeds a certain value, the cavitation effect will be reduced due to the increase of steam pressure. Therefore, it is necessary to adhere to a certain temperature. The test shows that the water-soluble medium is generally good at 50 ℃± 5.