A customer inquired about the presence of organic impurities in the plating solution during the production process of using bright acid tin plating additives. It is necessary to regularly purify the plating solution. If the plating solution is not treated, what impact will it have on the plating solution?
Based on on-site experience and analysis of the characteristics of Sn-807, a bright acid tin plating additive, Bigley Technology found that organic impurities and the decomposition products of the brightener can cause the plating solution to become turbid, increase viscosity, and reduce the brightness range of the tin coating. Additionally, the coating is prone to faults such as brittleness, stripes, and pinholes. Therefore, we should regularly purify the plating solution during production. The processing method is as follows:
1. According to the severity of the plating solution malfunction, add an appropriate amount of tin treatment agent, stir thoroughly, and then add about 5g/L of powdered activated carbon. First, adjust the activated carbon to a paste with water, and then add it. Otherwise, the activated carbon will float on the plating surface and not easily disperse.
2. After adding activated carbon, the plating solution should be thoroughly stirred (without heating), allowed to settle naturally, and then left to stand overnight. The upper layer of the plating solution should be filtered first, while the plating solution with higher viscosity at the bottom is difficult to filter, and it takes a long time to separate and remove the precipitate.
3. After analyzing and supplementing the content of basic components in the treated plating solution, adding an appropriate amount of additives to adjust can restore electroplating.
So, in the production process of using bright acid tin plating brightener, we can use this method to purify the plating solution, ensure good performance of the plating solution, reduce the occurrence of faults, and improve production efficiency. If you are interested in bright acidic tin plating additives, please contact Bigley customer service for free samples and detailed technical information!
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