为减少锌镀层的腐蚀速率，通常采用铬酸盐钝化。
In order to reduce corrosive rate, zinc plated parts are usually chromatized.
锌镀层经铬酸盐钝化之后，耐蚀性可提高6 ~8倍。
Zinc plating chromic acid salt after the passivation, corrosion resistance can improve 6 to 8 times.
铬酸盐钝化处理是提高化学镀层抗腐蚀性能的一条重要途径。
Passivating treatment by chromate is an important way to improve the corrosion resistance of electro-less plating.
指出了稀土钝化工艺在取代铬酸盐钝化中的优势及其应用前景。
The advantage of rare earth passivation technics in replace of the technics of chromate passivation and its application prospect were presented.
报导了以SEM为表征手段，对重铬酸盐钝化处理的黄铜制品进行了表面形貌分析，就其防腐性能进行了测试。
In this paper, the surface characterization of the brass inactivated by dichromates is analyzed by SEM, and its anticorrosion property is tested.
中性盐雾、电化学测试等腐蚀性能试验结果表明，钛盐钝化溶液所获得的蓝色钝化膜，其耐腐蚀性能更优于铬酸盐钝化膜。
Corrosion resistance of the blue passivation film obtained in titanium salt solution was superior to that of the chromate passivation.
探讨了镀锌层钛盐溶液钝化替代传统的铬酸盐镀锌层蓝色钝化的工艺和形成蓝色钝化膜的机理。
Passivation technology on electrodeposited zinc in titanium solution was provided as an alternative treatment to chromate blue passivation.
铬酸盐转化镀层导致形成钝化膜。只能使用三价铬。
Chromate conversion coating resulting in the formation of a passivating film.
无铬钝化；硅酸盐；镀锌；耐蚀性；
Non-chrome passivation; Silicate; Zinc plating; Corrosion resistance;
无铬钝化；硅酸盐；镀锌；耐蚀性；
Non-chrome passivation; Silicate; Zinc plating; Corrosion resistance;
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