Alkaline zinc-nickel alloy electroplating solution with high stability
A high-stability, nickel-alloy technology, applied in the field of electroplating, can solve problems such as current efficiency drop, and achieve the effects of reduced adsorption, high corrosion resistance, and low brittleness
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Embodiment 1
[0015] Alkaline zinc-nickel alloy rack plating process of the present invention is as follows:
[0016]
[0017] The alkaline zinc-nickel alloy plating solution described in the above process is prepared by the following method: add 120 g of sodium hydroxide to 500 g of water, then add 10 g of zinc oxide, stir to dissolve it, and this solution is A solution. Add 5g of nickel sulfate to 50g of water, stir to dissolve it, then add 8g of triethylenetetramine and 25g of triethanolamine, stir evenly, this solution is B solution. Add liquid B to liquid A and stir well. After cooling the plating solution, add 4mL of brightener and 10mL of auxiliary agent, and then add water to 1000mL.
[0018] The brightener is prepared by the following method: dissolve 30-60g of sodium metabisulfite in 750mL of water, then add 30-60g of 4-methoxybenzaldehyde, stir to dissolve, and then add 30-60g of sodium toluenesulfonate 1. Propanesulfonic acid pyridinium salt 30-60g, butyl etherate 10-50g an...
Embodiment 2
[0023] Alkaline zinc-nickel alloy barrel plating process of the present invention is as follows:
[0024]
[0025] The alkaline zinc-nickel alloy plating solution described in the above process is prepared by the following method: add 130 g of sodium hydroxide to 500 g of water, then add 11 g of zinc oxide, and stir to dissolve it. This solution is A solution. Add 5.5 g of nickel sulfate to 50 g of water, stir to dissolve it, then add 10 g of triethylenetetramine and 20 g of triethanolamine, and stir evenly. This solution is B liquid. Add liquid B to liquid A and stir well. After cooling the plating solution, add 6mL of brightener and 15mL of auxiliary agent, and then add water to 1000mL.
[0026] The preparation of the brightener and auxiliary agent described in this embodiment is the same as that in Example 1.
[0027] The prepared zinc-nickel alloy coating has less brittleness, greater adhesion and high corrosion resistance.
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