影响铁基上滚镀Fe-Ni-Cr合金镀层质量和成分的因素  

FACTORS AFFECTING THE QUALITY AND COMPOSITION OF BARREL-PLATED Fe-Ni-Cr ALLOY

作　　者：杜晶晶[1] 许利剑[1] 汤建新[1] 

机构地区：[1]湖南工业大学绿色包装与生物纳米技术应用实验室,株洲412008

出　　处：《腐蚀与防护》2007年第7期361-363,共3页Corrosion & Protection

基　　金：国家自然科学基金项目(60571001);中国博士后科学基金项目(20060390887);湖南省教育厅项目资助(06C262)

摘　　要：在氯化物-硫酸盐混合体系中,在铁基上进行滚镀Fe-Ni-Cr合金实验,结果表明:滚镀所得的Fe-Ni-Cr合金镀层铬的含量只有2%左右,难以提高,且镀层表面质量不佳,常出现滚桶眼子印现象。通过对影响滚镀Fe-Ni-Cr合金镀层质量和镀层成分的因素进行分析,认为局部电流密度过大是影响滚镀Fe-Ni-Cr合金镀层质量的主要因素;铬盐浓度、pH值、温度以及Cu2+、Fe3+杂质离子是影响镀层成分的主要因素。并对Fe-Ni-Cr合金的应用前景和目前存在的问题进行了阐述。Fe-Ni-Cr alloy electrodepositing experiment on iron substrate in chlorid-sulfate solution by barrel plating was performed. The Fe-Ni-Cr alloy quality was bad and the content of Cr was only about 2% by barrel plating. The phenomenon of barrel roll eye stamp often appeared. Factors affecting the quality and composition of barrel plated Fe-Ni-Cr alloy were analyzed. The factor affecting the quality of barrel-plated Fe-Ni-Cr alloy was that the local cathodic current density was too powerful. The main factors affecting the composition of barrel-plated Fe-Ni-Cr alloy were the concentration of chromium salt in the bath, pH, temperature and impurity ions of Cu^2＋ and Fe^3＋. The problems of Fe-Ni-Cr alloy plating at present and its application prospect are presented.

关 键 词：电镀 Fe-NFCr合金 滚镀 

分 类 号：TQ153.2[化学工程—电化学工业]