连续电镀锌镍合金的研究

Study of continuous zinc-nickel electroplating

提出了一种高氯化铵弱酸型镀液体系连续电镀锌镍合金工艺。研究了m(Ni2 +) /[m(Ni2 +) +m(Zn2 +) ]、氯化铵浓度、电流密度、温度、pH值对镀层镍含量的影响 ,推导出连续镀的镀速计算公式。采用此工艺可获得外观良好、镍含量在1 3%～ 1

A process for continuous zinc-nickel alloy electroplating from weak acidic high ammonium chloride containing bath was advanced. The effects of mass ratio of nickel ions to nickel and zinc ions, concentration of ammonium chloride, current density, temperature and pH value on nickel content of zinc-nickel alloy deposits were studied. Formula of continuous plating rate was derived. Bright and corrosion resistant zinc-nickel alloy deposit was obtained with nickel content between 13 to 15 weight percent.