There is such a trivalent chrome blue zinc passivator, it can pass the customer's high salt spray test requirements, can improve the efficiency of the passivation, but also can reduce the cost of the process, do you know what passivator?
Electroless nickel plating on copper parts is a common process used to improve the corrosion resistance and decorative properties of copper parts. However, when the plating has quality issues and needs to be deplated, it is critical to select the correct nickel remover. In this article, we will discuss why nitric acid should not be used to deplate electroless nickel plating on copper parts.
In modern manufacturing, alkaline galvanizing technology is widely used due to its good corrosion protection and environmental friendliness. However, the brittleness of the plating layer may negatively affect the service life and quality of the product, so methods for detecting the brittleness of the plating layer are of particular importance. In this paper, we will introduce several commonly used methods for detecting the brittleness of alkaline galvanized coatings when alkaline galvanizing additives are used.
BZ-216 trivalent chromium black zinc passivator is a single-dosage liquid concentrate, which is a trivalent chromium black zinc process suitable for zinc plating, suitable for rack plating and barrel plating, and can be used together with the corresponding coating, which can produce bright and uniform black passivation film on the galvanized layer.
In the field of electroplating, galvanizing is a common metal anti-corrosion technology. By applying a layer of zinc to the surface of a workpiece, the workpiece can be effectively isolated from direct contact with the external environment, thus preventing corrosion. However, the process of zinc plating itself is accompanied by certain risks, among which hydrogen embrittlement is a problem that cannot be ignored. In this article, we will discuss in depth the need for dehydrogenation of the workpiece after electroplating and mention the role of Bigely galvanizing brightener BZ-518 in this process.
Copper pyrophosphate plating process is widely used in practical production due to the advantages of simple composition of plating solution, weak alkali and good stability. However, when using copper pyrophosphate brightener, the production efficiency is affected by the narrow range of working current density. How to improve the plating efficiency of copper pyrophosphate plating process? It is a difficult point that many electroplating factories are struggling to find.
