钢铁材料电镀镉的研究现状

发布时间：2018-04-28 03:40

本文选题：钢铁 + 电镀镉　；参考：《表面技术》2017年01期

【摘要】：钢铁材料广泛地应用于诸多工业领域中,但其表面耐蚀性差,发生于材料表面的腐蚀会导致材料失效。镉与空气接触时会迅速氧化并形成致密的保护性氧化膜,因此表面镀镉可以有效地提高钢铁材料表面的耐蚀性。从电镀镉技术的具体应用出发,综述了用于钢铁表面防护的电镀镉技术和用于表面修复的电刷镀镉技术的应用现状。镀镉层作为阳极保护层,实现了对钢铁材料的防护。在镀液中添加钛盐后,形成的镉钛镀层比单纯的镀镉层具有更优异的耐蚀性和更好的低氢脆性。电刷镀镉作为一种特种镀镉技术,可用作镀镉局部破损件的补镀和修复。针对电镀镉废水对环境和人体的高危害,简要阐述了化学法、物理化学法、生物法三种电镀镉废水的处理方法,且微生物法具有良好的发展前景。最后,展望了钢铁材料电镀镉技术的相关研究思路和方法。
[Abstract]:Iron and steel materials are widely used in many industrial fields, but their surface corrosion resistance is poor, and corrosion on the surface of materials will lead to material failure. When cadmium is in contact with air, it can be oxidized rapidly and form a dense protective oxide film. Therefore, cadmium plating on the surface of steel can effectively improve the corrosion resistance of iron and steel materials. Based on the specific application of cadmium electroplating technology, the application status of cadmium plating technology for surface protection of iron and steel and brush cadmium plating technology for surface repair are reviewed. As anode protective layer, cadmium plating layer can protect iron and steel materials. After adding titanium salt into the bath, the cadmium titanium coating has better corrosion resistance and lower hydrogen brittleness than the pure cadmium coating. As a special cadmium plating technology, brush plating can be used to repair and repair partially damaged parts of cadmium plating. In view of the high harm to environment and human body caused by cadmium plating wastewater, the treatment methods of chemical method, physical chemistry method and biological method are briefly described, and the microbial method has a good development prospect. Finally, the related research ideas and methods of cadmium plating technology for iron and steel materials are prospected.
【作者单位】：太原理工大学表面工程研究所;沈阳飞机工业(集团)有限公司;
【基金】：国家自然科学基金(51501125) 中国博士后科学基金(2012M520604,2016M591415)~~
【分类号】：TG174.44;TQ153.17

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