Understanding the Barrel Gold Plating Process
Process flow of barrel gold plating
Ultrasonic chemical degreasing 1→Ultrasonic chemical degreasing 2→Secondary washing→Electrical degreasing→Third washing→Activation→Third washing→Nickel→Recycling→Water washing→Handling→Second washing→Pre-gold→Gold→Recycling→Third First-level washing → maintenance → third-level washing → drying → inspection packaging
Factors affecting the barrel gold plating process:
1. The influence of speed
The rotational speed of the barrel plating has an effect on the fluctuation and dispersion of the thickness change of the coating. When the number of revolutions is low, the thickness of the coating changes greatly, and the dispersion ability is not good. With the increase of the rotation speed, the thickness difference decreases, but the dispersion ability increases. If the rotation speed is further increased, the difference between the change of the coating thickness and the dispersion ability will change again. Difference. Therefore, an appropriate barrel plating speed can only be obtained through actual trials.
2. The influence of barrel eye diameter
The barrel plating of the barrel plating machine requires rows of holes full of cobalt. These holes not only facilitate the flow of the plating solution, but also ensure the passage of the current. Therefore, the size of the pore size has an important influence on the flow of the plating solution and the passage of the current.
Factors Affecting Barrel Plating Process
3. The influence of bath composition
Different electroplating solutions have an important influence on the thickness and dispersion of the barrel plating layer. Therefore, it is very important to select the appropriate barrel plating formula for the barrel plating process.
4. The influence of current intensity
When the loading capacity of the drum is constant, with the addition of current, the fluctuation of the thickness of the coating increases, and the uniformity of the coating decreases. This tendency is added when there are additives in the bath.