In the electroless nickel plating process, the hardness of the plated layer is an important assessment index, which is related to the electroless nickel plating products can be sustainably applied in industrial production, so what are the methods of plating layer hardness testing? This issue of the article we will introduce two methods.
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.
What factors are related to the protective properties of the plated layer when we use acid zinc brighteners? According to Bigely many years of experience in electroplating technical service, it is related to the following two points.
Alkaline cyanide-free galvanizing process requires the use of a variety of additives in the production process, the common alkaline cyanide-free galvanizing additives are brightener, carrier brightener, auxiliary brightener, wetting agent and degaussing agent, etc., which can work at the same time, but also can work separately.
Metal impurities in the tin plating solution such as copper ions and iron ions can interfere with the tin plating process. These impurity metals can be co-deposited during the plating process, resulting in an impure composition of the plated layer, which in turn affects the physical and chemical properties of the plated layer. Therefore, it is necessary to know how to remove impurities from tin plating solution.
In the electroplating industry, the dispersing ability of the plating solution is a key factor that affects the uniformity and quality of the plated layer on the substrate. Additives in the nickel sulfamate plating process play a vital role in regulating this property.
