An alkaline zincate zinc plating solution generally refers to an electroplating solution for electroplating zinc in which zinc ions are present in the form of alkaline zincate. This solution is prepared by dissolving zinc metal and an alkaline substance in water.
Author: Marisa
An alkaline zincate zinc plating solution generally refers to an electroplating solution for electroplating zinc in which zinc ions are present in the form of alkaline zincate. This solution is prepared by dissolving zinc metal and an alkaline substance in water.Let's take alkaline zinc plating brightener as an example to analyze the composition of alkaline zincate zinc plating solution:
1. Zinc oxide: 8-12 g/L
2. Sodium hydroxide: 110-145 g/L
3. Opening agent: This is a moving agent, and the consumption is only 10-15 ml/L. It can especially improve the brightness of the high current area, and also improve the dispersion ability of the coating, so that the deposition rate of the high current area is reduced, and the deposition rate of the low current area is increased, and the internal stress of the coating can be reduced. If it is seriously excessive, it will affect the brightness of the low current area.
4. Brightener: The consumption of brightener is 1-2 ml/L, which can make the coating fully bright. It can especially improve the brightness of the low current area and is also a moving agent for the low current area.
In order to ensure the stability of the electroplating process and the high efficiency of the coating quality, the electroplating plant usually operates according to the instructions of the alkaline zinc plating brightener and adjusts the solution composition according to real-time analysis.
The adjustment of the ratio will also be carried out according to different conditions such as the required coating characteristics, the shape of the workpiece, and the electroplating process parameters. In addition, these ingredients need to ensure the stability of the plating solution when they are mixed to avoid precipitation or poor plating.
In actual use, electroplating plants should follow the advice of technical engineers and adjust process parameters through large-scale production. In addition to the tank opening agent and brightener, alkaline zinc plating brighteners also have impurity removers and adjusters, which play their respective roles in production.