Electroplating on 5052 alloy aluminum plate requires special pre-treatment due to the special properties of aluminum, which needs to be adjusted according to specific circumstances and cannot simply follow the general process. Therefore, sometimes it is necessary to conduct tests on the pre-treatment of electroplating on 5052 alloy aluminum plates.

 

To conduct this experiment, the first step is to select the pre-treatment process and design the improvement methods. The pre-treatment of electroplating on 5052 alloy aluminum plate includes four important processes: oil removal, acid corrosion, chemical plating or displacement plating, and pre plating. The key is chemical plating or displacement plating, therefore, the frequently conducted experiments are concentrated on this process. Of course, different aluminum sheets and processing methods have different requirements for pre-treatment. For example, there are significant differences in pre-treatment between die-casting aluminum parts and rolling aluminum parts. Even for the same processing method, different aluminum sheets have different pre-treatment processes. For example, the copper content of aluminum directly affects the adhesion of its coating.

 

The experiment on the pre-treatment scheme for electroplating on 5052 alloy aluminum plate is also a systematic comparative experiment. It is necessary to treat the sample with different selected pre-treatment processes, then perform the same electroplating process, and then test its adhesion. The key point of this comparative experiment is to ensure that all processes except for different process points are under the same conditions, otherwise there is no comparability and evaluation cannot be made.

 

In addition, 5052 alloy aluminum plate must be polished and polished before electroplating. There is no unevenness and spots on the surface. Also, the polished 5052 alloy aluminum plate must be wrapped with soft cloth or foam plastic.