There are many manufacturers and types of ultrasonic cleaning machines, but their main function is to clean various objects, and their cleaning function has been widely recognized by a wide range of users. In many industrial manufacturers, they are facing such a difficult problem. During the processes of degreasing, rust removal, water washing, surface adjustment, phosphating, etc., it is difficult to discharge the liquid that has penetrated into the weld seam, and water washing cannot completely remove it. Under humid and hot conditions, inclusions can easily cause the workpiece to turn yellow and rust. If these residual liquids can not completely dry the solid in the drying process, then the high-temperature dry powder spray will cause the residual liquid to seep out from the weld due to thermal expansion, affecting the combination of the coating and the metal surface, leading to the decrease or even fall off of the adhesion of the coating. In order to deal with this problem, the general manufacturers use high-pressure spray cleaning for many times, or change the drying process, increase the drying temperature, and deal with the residual liquid in the weld. These methods not only cause waste of water resources and energy, but also damage the phosphating film, reduce the corrosion resistance of the phosphating film, which is not ideal. Ultrasonic cleaning using ultrasonic waves; Full hole "; And "; Cavitation "; The characteristic is that it can quickly and thoroughly remove residual liquids and sun exposure in the weld seam, meeting the quality requirements for subsequent processing.

The effect of ultrasonic rust removal and flushing depends on cavitation, and the generation of cavitation is related to the intensity of ultrasonic waves. Usually, cavitation occurs in water-soluble media with an ultrasonic power of 0.3/cm2. Within a certain range, the higher the ultrasonic intensity, the more significant the cavitation effect. Generally, 1-1.2 w/cm2 is selected as the power density for cleaning.

The frequency of ultrasonic oscillation has a significant impact on the cleaning effect. At the same power, low frequencies can easily induce cavitation, with good cavitation effects at 16-25 kHz and 16-20 kHz

KHz low frequency is suitable for large and medium-sized mechanical parts with severe oil pollution and corrosion

KHZ is suitable for parts with high surface cleanliness, blind holes, and steel wire holes.

Ultrasonic cleaning temperature is an important factor affecting cleaning speed. Increasing the cleaning temperature appropriately can improve cavitation ability and shorten cleaning time. However, when it exceeds a certain temperature, it is necessary to maintain a certain temperature due to the increase in steam pressure. The results show that water-soluble media work well at 50 ± 5.

Article source: Jiangmen Ultrasonic Cleaning Machine http://www.kpzfcsb.com/