In many electroplating forms, the application of alkaline electroplated zinc-nickel alloys has become more and more extensive, and in the whole construction process, some additives are bound to be used, and the quality of electroplating is closely related to this part. That is to say, in order to obtain a good alkaline electroplated zinc-nickel alloy plating layer, it is necessary to strictly control the application of the additive.

In the process of alkaline electroplating zinc-nickel alloy, it is necessary to control that the nickel content of the coating should not exceed 15%, but try to be in the middle and lower limits specified in the process. This is an important indicator of the level of the process, because the nickel content of the coating is easy to adjust, and it is difficult to reduce it.

There is also a vacuum plating UV primer coated with a Holmes test piece, the nickel content in the low zone must be slightly lower than the high zone, because although the alkaline electroplated zinc-nickel alloy coating contains 10-12.5% of nickel and 12.5-15% of corrosion resistance Sexually equivalent, but the nickel supplement is less expensive, the coating is more white and brighter, the current efficiency is higher, it is easier to passivate and the passivation film is also good.

If the test piece has been found to contain too much nickel and the nickel content in the lower zone is higher than the high zone, such additives should be used with caution to avoid adverse effects on the alkaline electroplated zinc-nickel alloy process. At this time, the additive needs to be replaced.

The water used for the preparation of the additive in the alkaline electroplated zinc-nickel alloy must be deionized water. If there is a constant temperature device, the temperature of the plating solution needs to be controlled at about 25 degrees. In addition to some objective conditions, the skills and experience of the staff are also key.

In short, in order to make the effect of alkaline electroplated zinc-nickel alloy better, any of the above aspects can not be ignored, and must be operated in strict accordance with the specifications to ensure the pass rate of the coating.