The results showed that the corrosion resistance of zinc electroplating increased with the increase in flow velocity of electrolyte, and decreased with the increase of current density.
试验结果说明，镀锌层耐蚀性随镀液流速增大而提高，随电流密度增大而下降。
It is pointed that with the increase of current density, the sulfur transfer ratio of regeneration liquor and the vitriol concentrating ratio will go up while the current efficiency will fall down.
实验结果表明，随着电流密度的增大，再生液的硫迁移比、硫酸浓缩倍率增大，电流效率降低。
Along with the increase of the current density, cathode polarization effect, coating grain with increasing more and fine.
随着电流密度的增加﹐阴极极化作用随着增加﹐镀层晶粒越来越细。
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