铁离子配合剂zfc及添加剂zfa的加入，使阴极电流效率降低。

Addition of complexing agent Fe 2 + (ZFC) and additive ZFA will reduce the current efficiency.

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研究表明：明胶能增大阴极过电位，能提高阴极电流效率，提高电解液的比电阻。

The study shows that gelatin can increase cathodic superpotential, cathodic current efficiency and specific resistance.

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该法既提高镀铬液的阴极电流效率又降低生产能耗，可获得光亮平滑、硬度高、结合力好的镀铬层。

It could help not only to increase the cathodic current efficiency of the chromium-plating solution, but also to obtain smooth appearance, high hardness and wearability of chromium electrodeposits.

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