The effects of 2-mercaptobenzothiazole (2-MBT) on the bath stability as well as ethylenediamine on the plating speed and coating thickness under the sulfite/thiosulfate combination system were investigated. The results show that the presence of 2-MBT is conductive to improving the bath stability. Both plating speed and coating thickness increase with the increasing of the concentration of ethylenediamine.%研究了亚硫酸盐/硫代硫酸盐复合体系下,2-巯基苯并噻唑(2-MBT)对镀液稳定性的影响,以度乙二胺对镀速、镀层厚度的影响.结果表明:2-MBT的存在有利于提高镀液稳定性；镀速与镀层厚度均随着乙二胺的质量浓度的增加而增大.
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