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- The history of trivalent chromium electroplating was looked back. 回顾了三价铬镀铬的历史。
- One such crystal is the ruby, which contains trivalent chromium ions dispersed in a matrix of alumina. 这样的晶体有一种叫“红宝石”,它包含的三价铬离子弥散在氧化铝的基体中。
- The hazards of hexavalent chromium electroplating, and the benefits of trivalent chromium electroplating were analyzed. 分析了六价铬电镀的危害及三价铬电镀的优点,以及三价铬电镀取代六价铬电镀带来的效益。
- The development history of trivalent chromium passivation for zinc plating was overviewed. 概述了镀锌三价铬钝化的发展历程。
- The major advantages and disadvantages of trivalent chromium electroplating were introduced. 介绍了三价铬镀铬的主要优点与缺点。
- The chromium deposition velocity of trivalent chromium electroplating was researched. 对三价铬电解液镀铬的沉积速度进行了实验研究。
- Hexavalent chromium is the most toxic form, the toxicity of trivalent chromium than 100 times. 六价铬是毒性最大的形态,其毒性比三价铬高100倍。
- The mechanisms and prospect of trivalent chromium plating were introduced.And some problems that should be deeply studied were pointed out. 还介绍了三价铬电镀的机理及展望,并提出了有待深入研究的问题。
- Trivalent chromium electroplating not only can reduce pollution obviously and save pollution treatment cost, but also can improve the quality of electroplating products. 三价铬电镀不仅可明显减少电镀对环境的污染,节省大量的污染治理费用,而且还可提高电镀产品的质量。
- The dependence of VMD performances on the membrane material and membrane pore sizes resulted mostly from different oxidation ability of hexavalent chromium and trivalent chromium. 详细考察了两种膜材料在减压膜蒸馏技术分离含铬溶液过程中的应用性能,发现由于溶液中六价铬和三价铬的氧化性不同,从而对膜材料和膜孔径的要求也有所不同;
- After trivalent chromium was oxidized and became hexavalent chromium, titanium can be precipitated and separated from chromium-nickel-vanadium solution under ammonia condition. 在一定条件下使三价铬氧化成6价铬,再在氨性条件下使钛沉淀,大量铬、镍留在溶液中。
- The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. 结果表明:锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹,具有较好的耐腐蚀性能;
- Trivalent chromium passivation possesses as good performance as hexavalent chromium passivation, but the toxicity related to trivalent chromium passivation is only one percent of the latter one. 三价铬钝化在许多方面具有与六价铬钝化类似的性质,而毒性只有六价铬的百分之一。
- Trivalent chromium plating has some distinct advantages over hexavalent chrome on decorative application.There are potential problems on its application, and its available condition is limited. 用三价铬镀装饰铬与六价铬电镀相比,具有很多优异特性,但在实际应用中也存在一些问题,其可镀性受到一定限制。
- The electroplating of chromium from a trivalent chromium bath in engineering has a fatal disadvantage of poor bath stability which is highly dependent on the nature of the anode material. 摘要三价铬镀铬在实际应用中最大的问题是工艺的稳定性差,而阳极是影响硫酸盐三价铬镀液稳定性的关键。
- At present, trivalent chromium electroplating process has became one of the mostimportant techniques to taking place of the seriously pollutional hexvalent chromiumelectroplating process. 目前,三价铬电镀工艺已经成为取代重污染六价铬电镀的最重要技术之一。
- With long term practice of zinc plating,we studied and obtained the good methods applied to the process maintenance for trivalent chromium passivation,and the methods for troubleshooting. 简述了三价铬钝化工艺条件及分析方法,并通过长期的生产实践,摸索出三价铬钝化中切实可行的工艺、维护管理方法及出现的钝化膜发雾、发黄、发花、不连续等故障产生的原因及排除措施。
- A trivalent chromium sulfate plating process 硫酸盐三价铬镀铬工艺
- Analysis of trivalent chromium sulfate plating bath 硫酸盐三价铬镀铬液的分析