The effect of pulse frequency and pulse duration ratio on the abrasion resistance of gold coatings is investigated with pulse plating in cyanide free and trace cyanide baths.
研究了脉冲电镀在微氰镀金，无氰镀金体系中脉冲频率、脉冲占空比对镀金层耐磨性的影响。
Through experimental study, the CIP plant of Hougou Gold Mine brought the technology of normal pressure cyanide free desorption into being without any modification of original equipment.
后沟金矿炭浆厂经过试验研究，使用原有设备，不需进行任何改动，实现了常压无氰解吸。
The applicable fields of alkaline cyanide-free zinc plating and acidic zinc plating before trivalent chromium passivation were proposed.
提出应用于三价铬钝化前的碱性无氰镀锌及酸性镀锌的适用场合。
The progress in the study of cyanide-free copper electroplating on steel matrix is introduced according to different valences of copper in the deposition process.
按照沉积过程中铜的价态的不同对在钢铁基体上无氰碱性镀铜的研究进展进行了说明。
The application of cyanide-free zinc plating processes to large-sized and shape-complicated workpiece was introduced.
介绍了无氰镀锌工艺在大尺寸、形状复杂的工件上的应用。
Ten typical formulas and some kinds of additives used for cyanide-free silver plating were introduced.
综述了十种典型的无氰镀银工艺配方和无氰镀银所采用的添加剂类型。
The exploratory experiment of cyanide-free separating technology of lead-zinc in the slime for a concentration plant had been carried out.
对某选矿厂矿泥的无氰铅锌分离工艺进行了探索研究。
The quality of nickel deposit is an important indicator to test the performance of cyanide-free zincating solution for high-Si aluminum alloy.
镀镍层质量是检验无氰高硅铝合金浸锌液性能的重要手段。
The process of cyanide-free silver pulse electroplating is investigated in 5,5-dimethyl hydantoin(DMH) bath.
研究了5，5-二甲基乙内酰脲（DMH）无氰脉冲镀银工艺。
Through adding assistant complexing agent and controlling initial current density, cathodic polarization was intensified in cyanide-free electrolyte.
通过添加辅助络合剂和控制起始电流密度的方法，可以增强无氰电镀时阴极的极化。
JP-2000 192279, Cyanide-free electroplating bath for silver and silver alloy coating, using fatty sulphurous compounds that are stable for a relatively long time.
本文介绍了国内无氰镀银研究情况，部分翻译了日本专利特开2000-192279，介绍银及其合金的无氰电镀液组分及工艺，镀液比较稳定。
JP-2000 192279, Cyanide-free electroplating bath for silver and silver alloy coating, using fatty sulphurous compounds that are stable for a relatively long time.
本文介绍了国内无氰镀银研究情况，部分翻译了日本专利特开2000-192279，介绍银及其合金的无氰电镀液组分及工艺，镀液比较稳定。
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