锌粉粒度对机械镀锌层耐腐蚀性能的影响  

Effect of Zinc Powders of Different Particle Size on Corrosion Resistance of Mechanical Zinc Coatings

作　　者：李广敏[1] 牛宗伟[1] 董海青[1] 

机构地区：[1]山东理工大学机械工程学院,淄博255091

出　　处：《表面技术》2013年第5期5-7,共3页Surface Technology

基　　金：国家自然科学基金(51005140);山东省自然科学基金(ZR2010EQ037);山东理工大学青年教师发展支持计划

摘　　要：分别采用325目、800目和325目+800目等质量混合的球形锌粉,在活化剂的作用下进行机械镀锌,得到三种机械镀锌层。观察了三种镀锌层的表面形貌和断面结构,分析了不同粒径锌粉所得镀层的结构特点,通过中性盐雾试验测试了镀层的耐腐蚀性能。结果表明:325目锌粉镀层的耐腐蚀性能最差,800目锌粉镀层的耐腐蚀性能最好,325目与800目等质量混合的锌粉镀层耐腐蚀性能介于两者之间,接近800目锌粉镀层。With the help of chemical agents, three kinds of mechanical zinc-coatings were achieved of 325 mesh, 800 mesh spherical zinc powders and the mixture of the two with equal quality. The surface topography and section morphology of the coatings were observed and the structure feature of coatings obtained by zinc powder with differen size was analyzed. The corro- sion resistance were detected by neutral salt spray test. The result shows that the corrosion resistance of 325 mesh zinc-coating is worse than the others, while the 800 mesh zinc-coatlng is best. The corrosion resistance of the mixed-zinc coating is close to 800 mesh coating.

关 键 词：机械镀锌层 表面形貌 断面结构 耐腐蚀性 

分 类 号：TQ153.1[化学工程—电化学工业]