镀液组成对硫酸盐镀锌镀层性能的影响  

Effect of bath composition on properties of zinc coating electroplated from a sulfate bath

作　　者：邢乐红[1,2] 黎德育[2] 李宁[2] 崔术新[1] 

机构地区：[1]牡丹江师范学院化学化工学院,黑龙江牡丹江157012 [2]哈尔滨工业大学化工学院,黑龙江哈尔滨150001

出　　处：《电镀与涂饰》2016年第7期351-353,共3页Electroplating & Finishing

基　　金：牡丹江师范学院博士科研启动基金项目(MSB201208);牡丹江师范学院国家级重点创新预研项目(GY201201);黑龙江省青年科学基金项目(QC2014C009);牡丹江市科学技术计划项目(G2013f1407)

摘　　要：在5 A/dm^2的大电流密度下,分析了硫酸盐镀锌液中Zn^(2+)和浓硫酸含量对镀层表观质量(明度)和微观结构的影响。随Zn^(2+)或浓硫酸含量升高,镀层的明度先增大后减小,微观结构先改善后变差。当镀液中Zn^(2+)含量和浓硫酸含量分别为90 g/L和6 g/L时,所得镀锌层的明度最高,结晶最细致。The effect of the contents of Zn^2＋ and concentrated sulfuric acid on the apparent quality（luminosity） and microscopic morphology of zinc coating electroplated from a sulfate bath at high current density was analyzed. With the increasing content of Zn^2＋ or concentrated sulfuric acid in bath, the luminosity of zinc coating is increased initially and then decreased, and the microscopic morphology is improved initially and then becomes worse. The zinc coating obtained from the bath containing 90 g/L Zn^2＋ and 6 g/L concentrated sulfuric acid features the highest luminosity and the most compact crystalline structure.

关 键 词：低碳钢 硫酸盐镀锌 镀液组成 明度 微观形貌 

分 类 号：TQ153.15[化学工程—电化学工业]