铬镀层铬镀层对钢铁零件为阴极性镀层。
Chrome plating chromium plating for steel parts for Yin polarity coating.
保护是一个纯粹，马特灰色有色铬镀层的珠光表面结构。
Protect a is a pure, matt grey coloured chromium coating with a pearly surface structure.
结果表明，铬镀层的X射线衍射图中只有非晶态铬的宽化峰；
X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to characterize the properties of the chromium deposits.
所得镀层外观与铬镀层相近，具有良好的耐蚀、耐热和耐磨性能。
Results show that iron tungsten alloy deposit obtained is similar to chromium deposit in appearance, and has good resistance to corrosion, heat and wear.
简单来说，电镀就是需要在钢铁材料的表面镀上一层较厚的铬镀层。
In simple terms, plating is required in the surface of the iron and steel materials to be plated with a layer of chromium coating.
过去电刷镀都用镍镀层代替铬镀层，但镍镀层的耐磨性、硬度等性能不如铬镀层。
In conventional brush plating, Ni plate is used to replace Cr one, but the former is not as good as the latter in wear resistance, hardness and so on.
概述了黑铬镀层性能、黑度与硬度关系，目前出现的工艺类型、辅助添加剂和镀层应用等状况。
Applications of black Cr plating, different types of baths and the secondary additives used, and relationship between blackness and hardness of the coating have been summarised.
利用扫描电镜（SEM）及背散射电子像，观察了不同条件下基体与铬镀层的表面及断面形貌。
The surface morphology and section view of Al substrate in different conditions and Cr deposition were observed by SEM.
已有生产实践和研究工作表明，用含钨镀层代替传统对环境有危害的铬镀层等方面取得了很大进展。
The productive practice and research results show that tungsten coat is prior to chromium coat in environmental factors.
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.
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.
本实验通过控制镀液组成和操作条件获得了非晶态铁-铬合金镀层。
The amorphous Fe Cr alloy coatings were obtained by controlling the composition of bath operation conditions.
精密小孔在镀硬铬时，很难获得均匀的镀层，直接影响产品的尺寸精度和形位精度。
It is difficult to gain homogeneous coating when precision small holes are electroplated chrome, which affects the dimensional precision and the form precision of the product.
双层镍作中间镀层的装饰性铬-镍合金试件经16小时铜加速盐雾试验（CASS）后，外观未出现不良现象。 镀层显示了较好的耐蚀性能。
Experienced 16 hours of CASS standard test, the plating layer, based on double post-plating nickel layers, still preserves perfect decorative appearance and shows good property of anti-erosion.
本实验通过控制镀液组成和操作条件获得了非晶态铁-铬合金镀层。
Fe Cr alloy coatings were obtained by controlling the composition of bath operation conditions.
对摩托车零件电镀采用预镀镍-半光亮镍-光亮镍-镍封-装饰铬的组合镀层工艺，能完全符合质量标准要求。
A coating combination of nickel strike, semi-bright and bright nickel, nickel sealing plus decorative chromium is suggested to provide motorcycle parts with the standard quality finish.
这一金属镀层过程对铬掩模塑料有非常广泛的作用。
The metalization process is used to chrome plate plastic for a variety of USES.
金属和其他有机镀层。锌，镉，铝-锌合金和锌-铝合金的铬酸盐转化镀层。试验方法。
Metallic and other inorganic coatings. Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys. Test methods.
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。
Nickel iron chromium alloy with nanocrystalline were electrodeposited from chloride bath containing trivalent chromium ions under direct and pulse current.
实验表明，沸水萃取法适用于可溶性六价铬的萃取，弱碱萃取法可用于两性金属涂镀层。
The experimental results showed that boiling water extraction is suitable for testing soluble hexavalent chromium compounds and weak alkaline extraction suitable for amphoteric metal coatings.
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。
In this paper, three types of bath for trivalent chromium plating are gained: chloride-glycine bath, chloride-U bath and sulfate-oxalic bath.
造工精巧的船锚装饰上缀有密镶透明水晶，以及一颗黑色水晶珍珠坠饰，而黑铬色镀层则完美演绎出电影的阴暗与神秘一面。
It features a delicate anchor motif embellished in clear crystal pave and a dangling black crystal pearl. The ruthenium plating reflects the dark and mysterious mood of the film.
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.
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.
碱性溶液所获得的镀锌镀层，采用三价铬溶液钝化。
Following the alkaline zinc plating process, the trivalent chromium passivation process is conducted to provide a protection layer for zinc coating.
含铬量6 3%左右的铬-镍合金镀层具有较好的硬度和耐蚀性。
The chromium nickel alloy plating containing 63 % chromium possesses high hardness and good corrosion resistance.
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.
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.
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