How Is The Ultrasonic Cleaning Machine Applied To The Electroplating Industry?

In electroplating, the purpose of the pretreatment is to remove dirt and impurities from the surface of the workpiece, making it an active surface suitable for electroplating. The reason for poor plating quality is that the pre-treatment is not good. The pre-treatment is not good, and most of the ultrasonic cleaning equipment is not used.

Before the plating, it must be cleaned according to the actual conditions of the workpiece and by appropriate methods. Metal substrates are generally classified into stamping parts and die casting parts. The oil stain on the stamping parts is a general stamping oil, which is easy to clean because of its high density. Generally, pickling, electrolysis, and the like can be used. Die-casting parts such as zinc, aluminum, and copper are difficult to clean because of various elements added to the die-casting parts. In addition, various oils such as engine oil must be used in the process of forming, drawing, calendering, cutting, and polishing. , polishing oil, etc. For ultrasonic cleaners, the oil can be easily removed. However, the polishing oil is divided into butter white oil, green oil, etc., and it is difficult to remove the ultrasonic cell. Therefore, it is necessary to select a suitable ultrasonic cleaning device and cleaning solution.

The ultrasonic frequency is generally between 20-100 kHz. For pre-processing of ordinary workpieces, ultrasonic cleaning equipment with low frequency and medium power is generally used, such as frequency 25-28KHZ, power density 1W/cm.

Since the low frequency is more likely to cavitation in the medium than the high frequency, the ultrasonic cell pulverizer can satisfy the requirements for the workpiece with a simple shape and not very precise. Features are louder and cheaper. For some highly precise workpieces, the high-frequency ultrasonic cleaning machine with high frequency of 40-68KHZ is generally used. Therefore, the type of cleaning machine has better cleaning effect on the complex shape of the workpiece such as the gap, the gap, the deep hole and the blind hole. However, the effect of ultrasonic cleaning is only to have a solution where the solution arrives. That is to say, to avoid air in deep holes and blind holes, and to pay attention to the phenomenon of impurity landing, oil floating and disposal cleaning.

After the workpiece is plated, it is rinsed. The cell pulverizer but some of the more complex workpieces, especially those with gaps, deep holes and blind holes (such as the glasses spring legs) can not play an ideal role. Only by using ultrasonic waves to remove the plating solution remaining in the slits, deep holes, and blind holes. Generally, an ultrasonic cleaning machine having a slightly higher frequency and a general power density can be selected in this respect.