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| Study on the technology of high speed electroplating of palladium nickel alloy |
| Zhang Jing1, Liu Guoqi1, Bai Yanli1, Zhang Zonglei2, Wang Hongmei1, Guo Shoujie1, Yi Zhenfang1 |
| 1. Lanzhou Jinchuan Precious Metal Materials Corporation Ltd., Lanzhou 730000, China; 2. Gansu Jingpu Detection Technology Corporation Ltd., Lanzhou 730000, China |
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Abstract Pd-Ni electroplating process with ammonia-free was studied because Pd-Ni electroplating process in ammonia system had high cost, poor operating environment in the precious metal electroplating industry. The studies were focused on the process parameters, plating bath solution, using method and maintenance of the plating bath. The results show that the Pd-Ni electroplating process with ammonia-free reduces the corrosion of equipment and avoids the generation of irritating odor, which is beneficial to prolonging the life of anode. The utility model is suitable for continuous electroplating and continuous spot electroplating production lines, and the coating composition is stable and uniform. Especially the cost of the Pd-Ni electroplating system is greatly reduced by 30%, and the production service life can be more than 5 a.
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