Some customers have asked what to do if the solderability of the plated layer is unstable when we use acid tin plating brightener. In order to answer this question, we need to know what are the causes of this kind of failure?
Reason one
Plating solution composition problems, at this time we need to analyze the concentration of each main salt, and according to the results of the analysis, will be given to adjust in the process range.
Reason two
Heterogeneous metal impurity ions influence, such as copper impurities, etc., at this time we need to use small current electrolysis processing, this method can also be used to configure the tank liquid occasions, to prevent impurities contaminated plating solution, bringing unnecessary failure trouble.
Reason three
Tetravalent tin affects the plating solution, if there is too much tetravalent tin in the plating solution, it will easily lead to plating failure, we can use Bigely tetravalent tin treatment agent to convert it into divalent tin.
Reason four
Tin anode plate is impure, we can use high purity tin anode plate, what standard should be reached to be considered high purity? It is recommended to use 99.9% tin anode plate, moreover, in the process of using acid tin plating brightener, plating plant should often tin brush the anode plate, which can prevent the anode passivation.
About Bigely Technology
Guangdong Bigely Technology Co., Ltd. ,founded in 2003, is a high-tech enterprise integrating R & D，production, sales and service, specializing in the production of electroplating additives. As a famous electroplating additives source manufacturer in China, Bigely has over 20 years' experience in electroplating additives production and own production base of 5000 square meters. We can produce 15,000 tons of electroplating additives every year, which can fully meet the needs of customers.
Our products are widely used to meet the plating needs of different industries and exported to many countries from all over the world. They can meet the environmental protection standard after use, mainly used in automobile parts, sanitary ware, electronic products, hardware, furniture, building accessories and other fields.
If you need our high-quality electroplating additives, please contact us. We can provide you samples for test, and also provide a series of services.
