Why is surface treatment so important?

As a processing staff of electrophoresis coating processing, it is necessary to have a comprehensive and detailed understanding of electrophoresis processing, just from the current situation. In order to continuously improve the relevant knowledge and content, and to make the correct and reasonable use and electrophoresis processing in practice, the continued explanation of this knowledge can allow everyone to gain and inspire from it. In the electrophoresis process, the process of surface treatment is more important.

The surface treatment process in electrophoresis processing is the basic requirement, mainly degreasing and rust removal, water washing, surface conditioning and phosphating. Among these four processes, degreasing and rust removal is a very important and critical process, and the actual cost accounts for a relatively large proportion, and it is also a prerequisite and condition for quality assurance of other processes. The selection of raw materials for electrophoresis processing should be treated separately according to different workpiece surfaces. In the electrophoresis processing process, the selection of raw materials should be paid attention to and carried out carefully, because it will inevitably affect the coating quality. Therefore, choose the right one, which can ensure the good quality of the material, so as to ensure the quality of electrophoresis processing.

If the surface condition of the workpiece is different, there are some differences in the pretreatment. If the surface of the workpiece is heavily oily, special treatment must be carried out before the electrophoresis operation, otherwise it will be poorly phosphated and the quality of the electrophoretic coating film will not meet the standard. After electrophoresis processing, no bending or stamping processing can be performed. In the early stage, bending or stamping processing should be performed first, and then electrophoresis. This is because if it is done the other way around, it may easily cause problems, or cause damage to the coating film, or cause scratches on the surface, which will inevitably reduce the quality of electrophoresis.