BH-88 trivalent chromium sulfate plating process was chosen.
选用BH- 88硫酸盐三价铬镀铬工艺。
The history of trivalent chromium electroplating was looked back.
回顾了三价铬镀铬的历史。
Trivalent chromium plating can be divided into chloride and sulfate systems.
三价铬电镀分为氯化物体系和硫酸盐体系。
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。
Trivalent chromium and hexavalent chromium are two main states of the chromium in foods.
三价铬及六价铬是食品中微量元素铬的两种主要存在价态。
Galvanized to trivalent chromium and hexavalent chromium passivation passivation process.
镀锌为三价铬钝化及六价铬钝化工艺。
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。
Formate-A acid system was a sulfate trivalent chromium plating process with low concentration.
甲酸-羧酸a体系是一种低浓度的硫酸盐三价铬电镀工艺。
Shenzhen (excellent) Ante Precision Industry Co. , Ltd. specializes in plastic plating, green trivalent chromium plating.
深圳市（卓越）安特精密工业有限公司专业致力于塑胶电镀、环保三价铬电镀。
It's urgent to develop the technique of trivalent chromium plating because of the heavy pollution of hexavalent chromium plating.
六价铬电镀工艺存在严重的环境污染问题，利用三价铬镀铬取而代之已经迫在眉睫。
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。
In this paper, three types of bath for trivalent chromium plating are gained: chloride-glycine bath, chloride-U bath and sulfate-oxalic bath.
本文新近研究了一种以甲酸盐-羧酸盐作为络合剂的三价铬电镀新工艺，并对该溶液和镀层进行了性能测试。
Following the alkaline zinc plating process, the trivalent chromium passivation process is conducted to provide a protection layer for zinc coating.
碱性溶液所获得的镀锌镀层，采用三价铬溶液钝化。
Trivalent chromium in dissolved state occupies a principal position, so that ratio of trivalent chromium to total dissolved chromium is more than 80%.
六价铬对总铬比率低于3%，是最次要的形态；三价铬对总溶解铬的比率在80%以上，所以三价铬在溶解态中占主要形态。
Nickel iron chromium alloy with nanocrystalline were electrodeposited from chloride bath containing trivalent chromium ions under direct and pulse current.
采用直流和脉冲电沉积方式从三价铬的氯化物镀液中沉积出镍-铁-铬纳米合金镀层。
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 effects of grain size on the electrochemical corrosion behaviors of zinc and trivalent chromium passivation film on zinc have been studied respectively by electrochemical methods.
利用电化学方法分别研究了晶粒尺寸对纯锌及其表面三价铬钝化膜腐蚀行为的影响。
There have been numerous experiments on animals and clinic tests confirming trivalent chromium is an essential micronutrient for human and animals, which can affect the metabolism of glucose.
许多动物试验和临床试验均表明，三价铬能影响糖代谢，是人和动物体所必需的微量元素。
By the reduction on industrial Chromic anhydride-methanol, the trivalent chromium main salt was made. The technological formula and standard of Chromium-Nickel alloy electroplating were given.
采用工业铬酐-甲醇还原法制备三价铬主盐，给出了电镀铬-镍合金工艺配方与工艺规范并对镀层性能进行了测试。
By the reduction on industrial Chromic anhydride-methanol, the trivalent chromium main salt was made. The technological formula and standard of Chromium-Nickel alloy electroplating were given.
采用工业铬酐-甲醇还原法制备三价铬主盐，给出了电镀铬-镍合金工艺配方与工艺规范并对镀层性能进行了测试。
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