In the production process of bright copper electroplating, we can quickly obtain good brightness, filling and displacement ability by adding acid copper plating brightener normally.Sometimes we find that the consumption of brightener is much higher than usual. What is the reason?
According to the field experience and the characteristics of the product acid copper plating brightener Cu-510, Bigolly Technology has made an analysis. The main reasons are as follows:
1. The bath temperature is too high.When the bath temperature is high, the conductivity of the bath will be increased, and the deposition rate of the coating will be improved, but the consumption of brightener will increase, and the crystallization of the coating will be relatively rough.Bigolly suggested that the bath temperature should be controlled between 20 and 45 ℃.
2. The sulfuric acid content in the plating solution is too high.The sulfuric acid in the bath can reduce the resistance of the bath and prevent the hydrolysis precipitation of copper sulfate. Although the content of sulfuric acid is too high, it can improve the plating ability, but the brightener is easy to decompose.The content of sulfuric acid shall be regularly analyzed and adjusted during production.
3. Insufficient anode or anode passivation.When the phosphor copper anode is insufficient or the anode is passivated, copper ions will be separated from the phosphor copper anode, and the copper ions in the plating solution will rise, reducing the dispersion ability of the plating solution, and the bright range of the coating will be relatively small. At this time, the consumption of brightener will increase.Therefore, the anode plate shall be checked regularly during production, and the anode area shall be adjusted to be within the normal range.
4. The supplement of acid copper brightener is out of balance.Some operators will increase the brightness of the workpiece by adding brighteners, but this will easily lead to imbalance of brighteners and waste of brighteners, and the accumulation of decomposition products of brighteners will be relatively fast, affecting the use effect of brighteners.The addition of acid copper brightener can be regularly analyzed and adjusted by Hull cell experiment, so that the bath is well maintained and the consumption of brightener is low.
Therefore, we should pay attention to the above four points when using acid copper plating brightener, and strengthen the maintenance and management of the plating solution, which can effectively reduce the consumption of brightener and save production costs.If you are interested in acid copper plating brightener, please contact the Bigolly customer service to obtain free samples and detailed technical information!
If you want to know more about copper plating, you can click to view "Common problem".
