The advantages of electroless nickel plating lie in its properties such as uniformity of plating, high corrosion resistance, and high hardness. However, in practice, the sudden decrease of plating speed is a common problem that needs to be solved in time. In this paper, we will introduce the electroless nickel plating process, and discuss in detail the possible reasons for the sudden decrease in plating speed and the measures to solve the problem.
Electroplated colored zinc passivation process is vital in the corrosion protection of steel and metal products. The passivation process is mainly divided into two types: trivalent chromium passivation and hexavalent chromium passivation, and each of these two technologies has its own advantages and disadvantages. In this article, a detailed comparison of trivalent chromium and hexavalent chromium passivation will be made in terms of the performance of the passivated film layer, production costs and environmental costs, in order to help plating factories to choose the appropriate passivation process!
The trivalent chromium black zinc passivation process has become a popular choice for galvanizing treatments in recent years due to its environmental credentials and low toxicity. However, despite its good corrosion resistance, it performs relatively poorly in terms of wear resistance. The causes of this phenomenon are mainly related to the physical properties, chemical structure and process control of the passivation film.
The pH value of Bigely neutral tin plating process is nearly neutral, which is suitable for the plating of materials susceptible to acid, alkali influence or corrosion, such as special glass, ceramic materials as the substrate of the component solderable ends, leads. So, how should we maintain the plating solution in daily production?
When methanesulfonic acid tin plating additive is used, the acidity of the plating solution is relatively low, and the corrosion is relatively small. In the use of methylsulfonic acid tin plating additives, we can understand the advantages and disadvantages of additives through performance tests. The following takes the methylsulfonic acid tin plating additive Sn-819 from Bigely Technology as an example to conduct a performance test:
Matte tin plating is a widely used electroplating process used to deposit a uniform layer of tin on metal surfaces to provide corrosion protection, increase solderability and enhance appearance. This tin layer has a certain "matte" or "non-glossy" effect, as opposed to shiny tin plating, and is characterized by the following:
