The Cr plating bath containing Cr-A has high cathode current efficiency, good throwing power, free of etching at low current density area and produces brighter harder Cr deposit than that of from conventional Cr plating bath. Cr-A为镀硬铬添加剂,该镀液的主要特点为:电流效率高,分散能力好,无低电流密度区的腐蚀,底层光亮,硬度比标准镀液所得镀层略有提高。
Improvement of temperature control of etching bath for plastic track detector 塑料径迹探测器蚀刻槽控温精度的改进
The desirable alkaline degreasing, mild acid etching and alkalic electroless nickel preplating process are experimentally chosen. The mechanism of electroless nickel deposition on zinc-based alloy is discussed. The plating bath is optimized by investigating the influence of ingredients on deposition(?) 试验筛选了合理的化学除油、弱酸浸蚀和碱性预化学镀的工艺,分析锌基合金化学镀镍的机理,通过酸性化学镀镍溶液的成分对镀镍速度的影响进行镀液优化。