We often find that many tin-plated electronic components will have a discoloration of the tin coating after being subjected to high-temperature soldering during production. However, by adding a high-temperature nickel plating process before tin plating, we can effectively prevent this discoloration. Which high temperature nickel additive should we choose?
We all know that there are a lot of semi-bright nickel plating additives on the market, but there are always a lot of problems in the process of use, such as unstable potential difference, poor corrosion resistance. So how do we choose a cost-effective semi-bright nickel plating solution?
In recent years, with the rapid development of new energy vehicles, electroplating technology plays a key role in ensuring the performance of auto parts and reducing manufacturing costs. Zinc-nickel alloy plating process has become a popular choice in the new energy vehicle industry due to its good corrosion resistance and mechanical strength. Among them, Bigely alkaline zinc-nickel alloy brightener BZ-617 has attracted much attention because of its own properties.
Electroplated tin layer plays a crucial role in the field of electronic plating, which not only affects the appearance quality of electronic components, but also directly relates to their performance and life. Among them, the high temperature reflow test is one of the important means to verify the quality of plating layer. So, how to pass the high temperature reflow test for electroplated tin layer?
When using hard chromium additives and analyzing CrO3 and Cr3+, in addition to paying attention to the calibration of ammonium ferrous sulfate before use, ensuring a large titration jump range, and controlling the heating time of ammonium persulfate, it is also necessary to pay attention to the fourth point.
High temperature nickel additive is applied to the process of plating a nickel sulfamate base layer on continuous plating, followed by pure tin plating. This additive allows the workpiece to pass the high temperature reflow test without discoloration of the plated surface. So how should this high temperature nickel additive be managed during the use of each component of the plating solution?
