| 1. | The effects of bath compositions and technological parameters on the coating appearance had been studied
同时考察了各种工艺条件对镀层外观形貌的影响。 |
| 2. | A bath composition , a brightener and the operating conditions have been determined through systematic research . the optimum ni - fe alloy coating contains 3 to 5 percent fe
该新电镀工艺经测定，镀液及镀层性能都很理想，而最适宜的镀层是含铁3 5的ni - fe合金。 |
| 3. | The process and alkaline bath composition of barrel ni plating for lr6 battery cases was described . the recent trend of ni electroplating for battery cases was also pointed out
对碱性电池钢壳的滚镀镍技术进行了工艺分析，介绍并探讨了有关工艺技术和镀液配方，还介绍了国外钢壳电镀的发展新趋势。 |
| 4. | 1 . the composition and current efficiency of ni - w - b electrodeposit in the bath containing ammonium citrate as complexing agent were related to the deposition current density and bath composition
在以柠檬酸铵为络合剂的镀液中， ni - w - b合金电沉积层的组成和沉积电流效率与沉积电流密度及镀液的组成等有关。 |
| 5. | The function of c2h1obn in ni - w - b alloy electrodeposition has been studied by means of cyclic voltamxnetry ( cv ) , the deposition mechanism of ni - w and ni - w - b alloy studied by potentiostafic step and their structures before and after heat treatments investigated by xrd and dsc . the effects of bath compositions and deposition conditions on the structure and properties of ni - w - b alloy and ni - w - b - ptfe composite coatings were explored
本文主要以ni - w - b合金为研究对象，运用循环伏安方法研究二甲基胺硼烷在ni - w - b合金电沉积过程中的作用、阶跃电位研究ni - w合金和ni - w - b合金电结晶机理、 xrd和dsc方法研究ni - w合金和ni - w - b合金电沉积层的结构以及合金在热处理过程中的结构变化。 |
| 6. | The pretreatment , effect of bath compositions and operation conditions such as temperature , currenty and time on compactness of the zinc and cu / ni / cr coatings have been investigated . the relationship of operation conditions to thickness of the coatings was studied by weight method . the specimens have been pickled in nacl or sulfate acid solution to evaluate the porosity of the coating
研究了镁合金电镀前处理工艺,电镀锌、电镀铜/镍/铬工艺配方及其施镀温度、电流密度和时间对镀层致密性的影响;采用称重法研究施镀工艺与镀层厚度的关系,利用nacl溶液和硫酸溶液浸泡试样来考察镀层孔隙率,采用划痕试验和热震试验检验镀层的结合力,采用金相显微镜和扫描电子显微镜观察镀层表面形貌。 |
| 7. | Othogonal testing method was employed to screen electroless nickel bath composition producing deposits with phosphorus content of wtl . 5 % . the paper also discussed the effects of ni2 + concentration , h2po2 - concentration , triethanolamine concentration and bath temperature on phosphorus content of electroless nickel deposits respectively
本研究采用正交试验方法，筛选并确定了镀层磷含量为1 . 5的最佳低磷化学镀镍配方，并研究了硫酸镍浓度、次磷酸钠浓度、三乙醇胺浓度和温度对镀层磷含量的影响。 |
| 8. | When the bath load was increased , the plating rate was shortened . the effects of bath composition and plating conditions on the composition were also investigated . the x - ray analysis showed that edta and the stabilization agent can effectively increase the content of the copper oxidation in the composite powders
粉体x ray分析的结果表明，络合剂对防止镀液中的氢氧化铜的产生起来关键作用，而氢氧化钢是产生氧化亚铜的直接原因，因而选用edta作为络合剂，以及合适的量，可以减少二射线中的氧化亚铜的馒头峰。 |
