镀铬

研究了钨表面镀前处理及预镀铬、镍，然后镀金的工艺条件；

The paper studied the pre treatment for electroplating the surface of tungsten and technical conditions for chromate treatment , nickel and gold plating , determined the functions of cladding material .

通过对摩托车活塞环的激光表面处理试验研究，发现激光处理的活塞环硬化层厚度和硬度与镀铬环相当，避免了镀铬环镀层剥离的缺点。

The paper studies the laser surface treatment of motorcycle piston ring . The experimental result : The hardness and thickness of hardened layer of laser treatment piston ring are equivalent to chromate treatment , the laser treating ring avoid the shortcoming of decollement .

能量色散X荧光光谱法测定碳钢表面的镀铬层厚度

Determination of the thickness of chromium coating on carbon steel by EDXRF

BF4~-离子选择性电极测定三价镀铬液中的H3BO3

Determining h_3bo_3 in three-valence chromium-plating solution with bf_4 ~ - ion-selective electrode

PLC和VVVF在镀铬自动生产线上的应用

Applications of PLC VVVF in Automatic Production Line of Chromium Plating

CS镀铬液的稳定性是人们关注的重要问题。

The stability of CS chromeplate liquid is the important problem of people attention .

镀铬层在Na2S溶液中的耐蚀性研究

Study on Corrosion Resistance of Chromium Coating In Na_2S Solution

作者采用液膜处理镀铬废水中的有毒Cr~（6+）离子，使之达到国家废水排放标准。

The poison C_r ~ ( 6 + ) in chromium - plating waste wate is handled by liquid membrane , in order to accord with the drain standard .

提出了用EDTA为络合剂的三价铬镀铬新工艺。

This is a review on trivalent Cr plating with EDTA as complexing agent .

镀铬阳极选用3CoCr合金的阳极保护作用导致钴离子释出量少量增加。

Selection of Cr plating anodes 3 Co release from Co-Cr alloy slightly increased which induced by the Co-Cr alloy anodic protection .

以Cr（Ⅲ）尿素体系为基础，选择了合适的添加剂，建立了新的甲酸甲醇尿素体系三价铬镀铬工艺。

Based on Cr (ⅲ) - urea system , a new formic acid-methanol-urea Cr (ⅲ) plating system is established through choosing proper additives .

该方法可用于镀铬溶液和铬酸钝化液中Cr（Ⅵ）和Cr（Ⅲ）含量的测定。

The method can be applied to the determination of Cr (ⅵ) and Cr (ⅲ) in chromium plating bath and chromic acid passivation bath .

络合滴定法测定镀铬液的H2SO4

Complexometric Titration of H_2SO_4 in Chromium Plating Solution

以Zn-Ni合金为底层的装饰性镀铬工艺研究

A Study on Decorative Cr Plating Process with Zn-Ni as Its Undercoat

直接金驼褪色光度法测定镀铬溶液中Cr（Ⅵ）三价铬硫酸盐溶液镀硬铬的辅助配位剂研究

Determination of Cr (ⅵ) in Chrome Plating Solution by Direct Brown 1 Discoloring Spectrophotometry Effect of auxiliary coordination agent in the deposition of chromium from chromic sulfate electrolyte

本文论述了镀铬钢领的走熟特性及PTFE（聚四氟乙烯）涂层的作用、配方和涂镀方法。

In this paper , the authors deal with the running-in properties of the chrome plated ring , and the behavior , prescription and operation of PTFR coating .

CrO3-H2SO4镀铬液中CrO3含量的快速测定的研究

Studies on Rapid Determination of cro_3 content in cro_3-h_2so-4 type Cr-plating bath

CrO3-H2SO3镀铬液中测定CrO4含量的两种方法比较

A comparison of two methods of determining CrO_s content in CrO_3-H_2SO_4 Cr plating bath

研究结果表明：镀铬层在Na2S溶液中的腐蚀过程有钝化产生；

Experimental results indicate that corrosion and passivation occur simultaneously at the chromium coating in Na_2S solution .

分析了镀铬废水的絮凝效果、Cr（III）溶液絮凝前后杂质的含量及硫酸铬的纯度，选定了最佳pH。

The flocculation effect of chrome plating wastewater , the content of impurities in Cr ( III ) wastewater before and after flocculating and the purity of chromic sulfate were analyzed , and the optimal pH was determined .

稀土阳离子在镀铬中的作用介绍了这种转化膜形成的可能机理：膜是由稀土阳离子和由氧还原生成的OH－在铝合金表面通过生成沉淀而形成的；

The possible formation mechanism of REM conversion coating is introduced : The formation of the film centers on the precipitation of the canons of REM and OH ~ - obtained from reduction reaction of O_2 onthe surface of aluminum alloy .

虽然他们的工作也许很重要，不过他们就是对车柱上的特殊曲线、肩线上的镀铬和前卫的N辐铝合金轮毂说“不”的人。

Essential though their job may be , they are the ones who say " no " to the special curve in the roof pillar , the extra bit of chrome on the shoulder line , or the fancy spokes on the aluminum wheels .

介绍松孔镀铬气缸套的特点、工艺过程及其在金城江机务段东风7D型机车上的运用效果。

The feature , technology process of production and application in DF7D locomotive at Jinchengjiang Locomotive Depot of cylinder liner chromed after excessive wear were presented .

制备了纯镀铬和Cr&Al2O3复合镀层，通过若干检测性实验，显微硬度测试，扫描电镜观察和摩擦磨损实验等来研究复合镀层的表面形貌和性能。

The surface of pure chromium coatings and Cr / Al_2O_3 composite coatings were observed and analyzed by scanning electron microscope ( SEM ), hardness was evaluated by micro-hardness instrument , frictional wear was tested by friction wear testing machine .

恢复涂层设计尺寸而打磨部件的镀铬层时，本体金属的打磨过热会造成在镀铬层下形成UTM和OTM。

When grinding chrome to finish dimensions , overheating the base metal can create UTM and OTM formations under the chrome .

建立了以硫酸亚铁铵作滴定剂，电位滴定法测定镀铬溶液中铬酐（CrO3）含量的方法。

The method determining the chromium trioxide concentration in the Cr-electroplating solution is set up by the electrometric itration with the ferrous ammonium sulfate as the titrant .

化学镀Ni-P合金非晶态镀层具有硬度高、耐磨及抗蚀性能好的性能，将这一工艺用于液压缸活塞杆以替代镀铬，取得满意的效果。

Chemical plating of Ni-P alloy uncrystalloid plating features high hardness , excellent wear-resistance and erosion-resistance . Satisfactory effect is achieved when using this process to plate piston rod of hydraulic cylinder instead of using chrome plating .

本文描述了一台专用的真空摩擦试验装置，并给出了真空度为10~（-3）托下，PTFE-花岗石、PTFE镀铬铜和PTFE钢球三种摩擦副材料的f-v实验曲线；

The paper describes a special equipment for vacuum friction test , and presents f-v test curves for combinations of PTFE-granite , PTFE-chromium plating steel and PTFE-steel ball in a vacuum of 10-3 Torr .

选用BH-88硫酸盐三价铬镀铬工艺。

BH-88 trivalent chromium sulfate plating process was chosen .

必须严格遵循排氢程序包括镀铬、磺胺基镍镀层和LHE镀镉检查、剥离和各阶段的回火刻蚀检查程序。

Processes that must be followed with relief baking include chrome , sulfamate-nickel , and LHE cadmium plating ; stripping operations ; and many nital etch inspections .