三价铬

sān jià ɡè
  • trivalent chrome
三价铬三价铬
  1. 环保型三价铬电镀新工艺(TRI-08)特性及维护保偏SiO2光波导环形谐振腔温度特性研究

    Properties and maintenance of environmental-friendly technology of trivalent chrome plating Temperature characteristic of ring resonator in polarization maintaining silica optical waveguide

  2. 环保型-低浓度高性能硫酸盐三价铬电镀装饰铬工艺研究

    The Technological of environment-friendly and high-performance decorative Sulfate Trivalent Chrome Plating with low Concentration

  3. 三价铬对肥育猪生长激素分泌及垂体mRNA表达的影响

    Effect of trivalent chromium on growth hormone secretion and pituitary mRNA expression in finishing pigs

  4. 结果表明,从具有较低pH值和适当组成的三价铬镀液中可以获得厚度超过50μm的硬铬镀层。

    The results showed that hard chromium film thicker than 50 μ m can be electrodeposited from a properly formulated trivalent chromium bath at lower pH.

  5. 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 .

  6. 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 .

  7. 采用电化学方法、扫描电镜和X射线光电子能谱研究了锌酸盐镀锌层的三价铬钝化膜的电化学性能、表面结构与成膜机理。

    The electrochemistry behavior , surface microstructure and forming process of trivalent chromium passivation film were studied by electrochemical methods , scanning electron microscopy and X-ray photoelectron spectroscopy .

  8. 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

  9. 三价铬镀液中电沉积纳米晶体Fe-Ni-Cr合金箔

    Electrodeposition of nanocrystalline Fe-Ni-Cr alloy foil in trivalent chromium bath

  10. 换热器Ni-P化学镀工艺与耐腐蚀可靠性评析不同镀锌工艺三价铬钝化耐腐蚀性研究

    Corrosion Resistance Reliability of Ni-P Electroless Coating on Heat Exchanger Study on corrosion resistance of trivalent chromium passivation films on zinc coatings electroplated by different processes

  11. 采用脉冲电沉积方法对三价铬电沉积Ni-Cr合金镀层工艺进行研究,确定并优化三价铬脉冲电沉积Ni-Cr合金的最佳镀液配方及工艺参数。

    The technology of pulse electrodeposition of nanocrystalline Ni-Cr alloy from trivalent chromium bath was studied . The optimum bath and operating conditions were obtained .

  12. 用生物修复技术来处理受铬污染的土壤,利用自然界中微生物,通过生物还原反应,将Cr(VI)还原成三价铬。

    Chromium - contaminated soil is treated by bio - remediation technology in this paper . Using microorganisms in nature , Cr ( VI ) can be reduced to Cr (ⅲ) by bio - reducing reaction .

  13. 三价铬离子水解聚合作用的研究Ⅶ.反丁烯二酸存在下高铬浓度区水解产物的pqr分析

    Studies on the Hydrolytic Polymerization of Chromium Ion ⅶ . pqr Analysis of Polymerization Products

  14. 三价铬可改善热应激产蛋鸡蛋黄颜色和蛋壳质量,降低血清甘油三酯含量,提高热应激产蛋鸡的细胞免疫功能和血清AKP活性;

    Chromium could improve egg yolk color and eggshell quality , and decrease serum triglyceride concentration and enhance cell-mediated immune response and serum AKP activity of heat stressed layers ;

  15. 铬是人体必需的微量元素,三价铬为葡萄耐量因子GTF的主要成分。

    Chromium is one of the essential trace elements in human body , Cr3 + is the basis of glucose tolerance factor ( GTF ) .

  16. 富含三价铬的富铬酵母,可以降低Ⅱ型糖尿病患者血糖及血浆胰岛素,又可降低高血脂患者的TC,TG,LDL-C,并升高HDL-C。

    Chromium-rich Yeast that enriched with Cr 3 + can reduce the concentration of blood sugar and blood insulin in diabetes patients , and also reduce the TG , TC , and LDL-C but increase HDL-C in hyperlipaemia patients .

  17. 选用BH-88硫酸盐三价铬镀铬工艺。

    BH-88 trivalent chromium sulfate plating process was chosen .

  18. 三核配合物的桥氧到三价铬的电荷迁移(LMCT)大约发生~440、573&590nm附近。

    The absorptions at ~ 440 nm , 573 ~ 590 nm in trinuclear is resigned to oxo-Cr ( III ) charge transfers .

  19. 研究了从三价铬镀液中电沉积Cr-Fe-C镀层的工艺以及镀层的形貌、结构与性能,利用这种工艺获得了厚度30μm以上、w(Fe)为27%左右的非晶态Cr-Fe-C合金镀层。

    This paper studies the process , appearance , structure and performance of Cr-Fe-C deposition plating from a trivalent chromium bath . The amorphous Cr-Fe-C alloy deposits are generated with thickness of more than 30 μ m and w ( Fe ) of about 27 % .

  20. 铬(Chromuim,Cr~(3+),后述铬均为三价铬)是人体必需的微量元素之一,是一系列酶和蛋白的活性中心的组成部分。

    Chromium ( Chromuim , Cr3 + ) was one of the microelements necessary for human body and the component of alive center of series of enzymes and protein .

  21. 文中介绍了BK-1型三价铬刷镀液的组成和镀层性能及其在表面强化处理、装饰防护处理、尺寸超差或磨损零件修复上的应用。

    This paper describes the composition of BK-1 trivalent chromium brush plating electrolyte , the characteristics of its deposition and its applications in surface enforcement , decoration and recovery of over-machined or worn-out parts .

  22. 三价铬体系铬-镍合金电镀工艺及镀层性能的研究

    Cr-Ni Alloy Electroplating Technology in Trivalent Chromium Bath and Coating Performance

  23. 三价铬镀铬的国内外研究和发展

    Researches and Developments in Trivalent Chromium Plating in China and Abroad

  24. 镀锌层三价铬蓝白色钝化工艺的研究

    Study of Trivalent Chromium Bright Blue Passivation Process for Zinc Coating

  25. 稀土元素对硫酸盐三价铬镀铬工艺的影响

    Effect of Rare Earth Element on Sulfate Trivalent Chromium Plating Process

  26. 锌、镉及其合金的三价铬钝化处理

    Process for chromating surfaces of zinc , cadmium and alloys thereof

  27. 次亚磷酸盐溶液电镀三价铬工艺的电化学

    Electrochemical study of process for trivalent chromium plating containing hypophosphite bath

  28. 活塞环镀铬溶液中三价铬的控制

    Control of Cr (ⅲ) Concentration in Cr Plating of Piston Rings

  29. 镀锌为三价铬钝化及六价铬钝化工艺。

    Galvanized to trivalent chromium and hexavalent chromium passivation passivation process .

  30. 对三价铬电解液镀铬的沉积速度进行了实验研究。

    The chromium deposition velocity of trivalent chromium electroplating was researched .