How To Solve The Embrittlement Problem Of The Plating Layer When Using Nickel Plating Brightener?

When using nickel plating brighteners for processing and production, if the coating exhibits faults such as rough crystallization and brittleness, it can cause production interruption and affect the production efficiency of electroplating enterprises. Therefore, it is necessary to explore the directions in which we need to troubleshoot and solve such faults.
In electroplating processes, the causes of plating failures are often not single, therefore, we must comprehensively consider various relevant factors in order to troubleshoot and handle the faults. Based on years of service experience, we have summarized the following possible reasons. Due to space limitations, in this issue of the article, we will first discuss the reasons for the improper ratio of brighteners.
Insufficient primary brightener
The electroplating bright nickel process uses saccharin as the primary brightener, which can improve the ductility and toughness of the coating, refine the grains, and produce a uniform luster. When the saccharin content is too low, the internal stress of the coating is high, the brittleness is strong, and the surface is foggy.
In the production of bright nickel plating process, we can conduct Hall cell tests to detect whether the saccharin content in the plating solution is insufficient.
Excessive secondary brightener
In the bright nickel plating process, the combination of primary and secondary brighteners can obtain high-quality coatings. However, if the concentration of secondary brighteners is too high, it can lead to blistering of the coating, and in severe cases, it can also cause detachment and brittle cracking of the coating.
You can communicate with workshop technicians to understand if the workshop has supplemented secondary brighteners multiple times during the production process to enhance the brightening effect.