Wetting agents play an important role in the bright sulfate copper plating process , mainly used to reduce the surface tension, so as to improve the contact between the bath solution and the surface of the object to be plated, to enhance the fluidity of the solution and to prevent the adhesion of air bubbles on the surface of the workpiece. Failure to add a wetting agent to the bright sulfate copper plating bath can lead to a variety of plating failures.
The interaction of the different components in the potassium chloride galvanizing system is complex. The fact that the plating is not bright instead of bright after the addition of a potassium chloride galvanizing brightener may be due to a number of factors, and here are some possible explanations:
Blistering of galvanizing passivation films is a common quality problem in the plating industry, which not only affects the appearance of metal parts but also reduces corrosion protection. Blistering can be caused by a variety of factors, including improper pretreatment, imbalance in the composition of the galvanizing passivation solution, etc. Let's take a look at some of them in this issue.
Metal parts treated by the trivalent chromium colored zinc passivation process are often subjected to a salt spray test (also known as a salt spray test) to evaluate their corrosion resistance. The salt spray test is an accelerated corrosion test method that is widely used to evaluate the corrosion resistance of coatings, metals and other materials in marine or saline environments.
Electroless nickel plating is a process in which a nickel layer is deposited on the surface of a material without an impressed current. The main purposes of heat treatment after electroless nickel plating are as follows:
In the electroplating industry, chromium plating is a common surface treatment method, which not only provides a decorative bright appearance, but also gives the workpiece good hardness, corrosion resistance and wear resistance. However, the surface roughness of the plating is an important index to measure the quality of the plating, which will directly affect the performance and appearance of the plating. The following are several key factors that affect the surface roughness after chromium plating:
