NiCoFe合金代铬镀层的电镀工艺.doc

PAGE 10 沈阳理工大学 目录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc7271 摘要  PAGEREF _Toc7271 1  HYPERLINK \l _Toc22290 一 Ni-Co-Fe合金代铬镀层的优点及工业现状  PAGEREF _Toc22290 3  HYPERLINK \l _Toc2090 2 电流密度，PH値以及温度对工艺的影响  PAGEREF _Toc2090 5  HYPERLINK \l _Toc12040 3 阴极电位对工艺的影响  PAGEREF _Toc12040 6  HYPERLINK \l _Toc13228 4 热处理对工艺的影响  PAGEREF _Toc13228 6  HYPERLINK \l _Toc760 5 稀土添加剂对工艺的影响  PAGEREF _Toc760 7  HYPERLINK \l _Toc25246 三 Ni-Co-Fe合金代铬镀层的最新研究  PAGEREF _Toc25246 7  HYPERLINK \l _Toc27519 1 Ni-Co-Fe合金纳米线有序阵列的模板合成与磁性  PAGEREF _Toc27519 7  HYPERLINK \l _Toc26639 2 电沉积纳米晶Ni-Co-Fe合金镀层的热稳定性  PAGEREF _Toc26639 7  HYPERLINK \l _Toc16563 总结  PAGEREF _Toc16563 9  HYPERLINK \l _Toc20479 参考文献  PAGEREF _Toc20479 9   PAGE \* MERGEFORMAT 2  PAGE \* MERGEFORMAT 0 摘要 由于铬镀层具有光亮、防变色，在大气环境下稳定性和光泽的持久性等独特的优良性能，而获得了广泛的应用。然而镀铬均镀性较差，电流密度高，电流效率低，能耗高，同时，铬雾和含铬废水排放严重污染环境和水源，危害人体健康。因而致力于开发代铬镀层，先后开发了电镀Sn- CO 、CO- B、Ni- CO- Tl- B等合金镀层以及化学镀Ni- MO- P、Ni- Cu- P、Ni-Sn- P、CO- W- P、Ni- W- P 等合金镀层，但是这些合金镀层的综合性能不能满足取代铬镀层的要求。鉴于上述状况，本文就可以取代铬镀层的电镀Ni- Fe- C合金工艺的优点，镀层性能，工业现状，研究现状，发展方向等加以叙述。从而使我们对电镀Ni- Fe- CO各个方面有一个全新的认识。本文着重介绍Ni-Co-Fe合金代铬镀层的电镀工艺与最新研究成果。 Abstract As with bright chrome plating, anti-discoloration, under atmospheric conditions, stability and durability and other unique luster excellent performance, and access to a wide range of applications. However, poor chrome-plated, high current density, low current efficiency, high energy consumption, while chromium and chromium-containing wastewater discharge fog serious pollution of the environment and water and endanger human health. Therefore committed to the development on behalf of chrome plating.Has developed a plating Sn-CO, CO-B, Ni-CO-Tl-B alloy plating and electroless plating, etc. Ni-MO-P, Ni-Cu-P, Ni-Sn-P, CO-W-P, Ni - W-P alloy coating, etc., but the overall performance of the alloy coating can not satisf