In the electroplating industry, trivalent chromium blue-white passivates are widely used to enhance the corrosion resistance and aesthetics of zinc and its alloy surfaces. The color of the passivation film not only affects the appearance of the final product, but also indirectly reflects the quality of the film. Below are a few key factors that affect the color of trivalent chromium blue-white passivate films.
The slow deposition rate of the chromium electroplating process can be specifically analyzed from the following electrochemical and process parameter perspectives:
In the production process, we will find that many tinned electronic plug-ins will appear tinplating discoloration after high temperature welding, and the workpiece can effectively prevent the plating discoloration by adding a high temperature nickel plating process before tinning. So which high temperature nickel additive should we choose?
The corrosion resistance of nickel sulfamate plating layers can be influenced by a number of factors. In order to improve the corrosion resistance of nickel plating layers, the following key factors need to be managed and controlled:
Semi-bright nickel plating is a very common type of nickel coating in the plating industry, which is intermediate between bright nickel and non-glossy (matte or dull nickel), and is intended to provide a surface coating that meets certain mechanical and industrial performance requirements while also having a certain aesthetic appeal. Typical characteristics of semi-bright nickel include a more uniformly smooth surface and a moderately light-reflective gloss, but not as highly reflective and mirror-like as bright nickel.
The nickel electroplating process is highly favored in the industrial and manufacturing sectors, especially because it provides a coating that is significantly more resistant to wear. The coating produced by nickel plating forms a dense, uniform metallic layer that protects the base material and reduces friction, thereby reducing wear.
