Effect of penetrant JFC on cyanide-free cadmium-titanium alloy electroplating with amino carboxylic acid as complexing agent
[Introduction] Frequent shaking of parts is required during Cd-Ti alloy electroplating in a cyanide-free bath with amino carboxylic acid as complexing agent due to the formation of numerous bubbles. [Method] Penetrant JFC was added as the wetting agent to the amino carboxylic acid based Cd-Ti alloy bath. The effect of penetrant JFC on the bath properties, coating performance, and hydrogen embrittlement of substrate was studied. [Result] The penetrant JFC improved not only the throwing power of the bath, but also the appearance and corrosion resistance of Cd-Ti alloy coating. The addition of penetrant JFC to the bath had no negative effect on the hydrogen embrittlement of substrate. [Conclusion] The findings of this paper can lay foundation for the further popularization of cyanide-free amino carboxylic acid-based Cd-Ti alloy electroplating process.
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维普
