We all know that the process of NdFeB magnets are basically carried out in a vacuum environment, the impurities are not easy to mix in. NdFeB permanent magnet material because of the more lively chemistry, so impurities are involved in the oxidation of the metal. Therefore, the finished product needs electroplating coating process. However, the quality of electroplating coating and its pre-treatment have this close relationship, this treatment technology generally have: degreasing, rust, activation and other processes. In this pretreatment process, if one of the links is not handled properly, it will lead to the plating layer foaming, peeling and other issues. If this defective NdFeB magnet part is installed on the device, it is likely to cause the entire machine to malfunction.

Forging metal materials than neodymium iron boron magnet material precision, NdFeB magnet material belongs to the microporous material, its porosity to the pre-plating process to bring a lot of difficulty and time-consuming. In addition to removing alkaline, acidic materials and contaminants from the process, it is also important to consider how to remove dirt from the pores.

For the less demanding low-grade permanent magnetic materials, the former pre-treatment process is: Alkaline degreasing - washing - pickling - washing - surface activation - plating. This process is relatively simple, but it requires a higher degreasing agent, degreasing agents need to use NdFeB Dedicated to degreasing agent can be complex to the formulation of the required variety of raw materials, the user preparation process is very troublesome . Since the emergence of high-power ultrasonic cleaners in industrial production, these problems have been solved one by one. Ultrasonic cleaning unique effect of cavitation can remain in the pores of the permanent magnetic material alkaline, acidic substances get better clearance!