Hard chromium plating process often faces the challenge of uneven coating distribution in deep holes, long slits and complex shapes, that is, the limitation of deep plating ability. For the electroplating factory, if you want to improve the overall product performance, you need to improve the deep plating capacity of the bath.
1. Reduce the current density of the bath: under normal circumstances, reducing the current density of the bath can improve the quality of the coating in deep holes or dead corners. However, this will slow down the deposition rate, so the relationship between production efficiency and coating quality needs to be balanced.
2. The use of hard chromium additives: adding Bigely hard chromium additive Cr-2 to the electrolyte can improve the brightness and flatness of the coating, but also affect the conductivity of the plating solution and the deposition rate of the coating, and improve the deep plating capacity.
3. Appropriate temperature control: the temperature of the electrolyte is also an important influencing factor for deep plating, the higher the temperature, the better the conductivity and fluidity of the plating solution, which helps to promote the distribution of the coating in the deep hole.
4. Stirring and flow control: By strengthening the stirring and flow of the plating solution, the updating speed of the plating solution on the surface of the workpiece can be improved, thereby improving the quality of the deep coating. This can be achieved by mechanical agitation, air agitation, or movement of the workpiece.
In order to improve the deep plating capacity of the hard chromium plating process and produce a good quality chromium plating layer, then, in addition to checking and adjusting the above four links, it is necessary to use Bigely hard chromium additive Cr-2, which can be added to the hard chromium plating process to obtain a well-placed coating with a coating hardness of 1000-1100KHN100