How to regulate the neutral nickel plating process

Although the pre-plated zinc alloy die-casting part has been covered with a layer of plating, once it enters the plating tank, it will still be corroded by the bath liquid. Therefore, it is necessary to plate a layer of neutral nickel and then plate acid copper or bright nickel. The specifications for neutral nickel plating are as follows:

Nickel sulfate 90 ~ 1009 / L sodium citrate ll0 ~ 1309 / L sodium chloride 10 ~ 159 / L boric acid 20 ~ 309 / L pH value 6.8 ~ 7.2 temperature '40 ~ 60" C cathode current density l ~ 1 .5A/din2 (first with a large current impact lmin) cathode movement 25 times / min

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Label: Process Specification Nickel Plating Cathode Nickel Sulfate Coating

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