铬液

Effects of the components of chromating solution and influence of technological parameter on the chromate conversion coating are discussed.

研究了一种以钼酸盐为促进剂的铬酸盐转化处理工艺的配方和成膜机理，讨论了铬酸盐转化处理液中各组分的作用和工艺参数对铬酸盐转化膜层的影响，并对铝合金型材涂装前处理工艺流程和主要工序进行了说明。

On the basis of the analysis of depositing agents that were generally used in the process of waste chrome liquor,a new complex depositing agent which is composed of sodium stearate,polyacrylamide and soldium hydroxide with proper proportion was prepared by use of condensation principle of charge effect and polymer absorbed layer.

在分析现行废铬鞣液处理可使用的沉淀剂的基础上，运用电荷效应及高分子吸附层的凝聚作用原理，研究出用硬脂酸钠、聚丙烯酰胺和氢氧化物按一定比例制成复合沉淀剂，用于废铬鞣液处理，效果良好。

The optimum process conditions of treating chromium-contained wastewater with low concentration and the optimum reflux rate of settled bottom stream of flocculate are obtained.

以长沙铬盐厂的含铬废水为试验水样，研究了用七水硫酸铁、亚硫酸氢钠、铁屑 3种还原剂达标处理较低浓度含铬废水的适宜工艺条件和悬浮液絮凝体沉降底流的最佳回流率。

The M11 paint developed by Masteel is a semi-organic material,mainly composed of acrylic resin emulsion,zinc dichromate solution,boric acid and glycerol.It can be applied in the high speed roll coating of electrical steels made by continuous annealing lines.The interlamination resistance of M11 chromate-containing insulating coating is above 150 Ω·mm2 per piece...

并对其性能进行了检测分析，结果表明，M11含铬绝缘涂料是一种主要由丙烯酸树脂乳液、重铬酸锌水溶液、硼酸、甘油等组成的半有机涂料，其性能满足电工钢连续退火生产线高速辊涂的需要；通过涂层工艺的合理控制，M11含铬绝缘涂层，其层间电阻在150Ω。mm2/片以上，综合性能满足电工钢用户的需要。

Effects of Cast Iron and Chromeplate Tap on Over Night Tap Water Quality;2. The develop ment status of current microcrack chromeplate technology is introduced.

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。

The working voltages were experimentally measured on-line at different reaction times under conditions of different temperatures, different current densities, and different initial anolyte concentrations in the electrochemical synthesis process of sodium dichromate and chromic anhydride from sodium chromate and sodium dichromate, respectively.

在线实验测得不同温度、不同电流密度、阳极液不同初始浓度时，铬酸钠电催化合成重铬酸钠和重铬酸钠电催化合成铬酸酐过程中不同反应时间下的工作电压。

In general, the chrome-included solution with the rain shows alkalescent, so it shows significant practical value to electrolyze and reduct Cr6+ in alkalescent media directly to dispose the extraction of chromium residues to disposal the chromium waste pollutant.

一般情况下，雨水淋淅出的含铬液体呈弱碱性，因此，直接在弱碱性介质中采用电解还原Cr~(6+)来处理铬渣浸出液，以治理铬渣污染具有实际意义。

While high quality deposition from trivalent chromium electrolyte could only be sustained for short periods and thin deposits obtained of decorative value only, it is difficult to substitute heaxvalent chromium plating in engineering electrodeposits by trivalent chromium plating at all.

因此，本文在电沉积出镍-铁合金纳米晶的基础上，采用脉冲电沉积的方法研究了在三价铬体系中获得纳米晶铬和铬-镍-铁合金纳米晶厚镀层的工艺及其基础理论，以期解决三价铬镀液完全代替六价铬电镀的难题。

This thesis has chosen the H_2SO_4 anode oxidation. From degreasing, alkaline cleaning, neutralization, the effect of surface before hand treatment on the quality of surface anodizing treatment is discussed. From electrolyte concentration, electrolyte temperature, voltage, timing, additive, the effect of anodizing oxidation on the quality of surface treatment are discussed, From hole sealing liquid composition pH, value, timing, the effect of hole sealing on the quality of surface oxidation treatment are examined.

对氧化的各个工序进行了较详细的分析，通过脱脂、碱蚀、中和等表面预处理进行了详细的研究讨论，确定了三个预处理工序的最佳工艺控制参数；从阳极氧化机理着手，对阳极氧化电解液浓度，氧化电解液温度，氧化时间、电流密度，氧化电压，添加剂等对氧化质量的影响因素进行了分析；对化学氧化工艺进行了传统的铬酸盐-磷酸盐氧化法正交实验研究，讨论了各个氧化液成分对氧化膜性能的影响。

For decades, chromic acid and sulfuric acid were employed in chromium electroplating. The bath composition was simple and the process was easy to operate.

多年以来，镀铬主要使用铬酸和硫酸镀液，其成份简单，操作容易，无论镀装饰铬还是镀功能性铬，都能得到满意的效果。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。