电池壳用钢工序间无油防锈钝化技术研究  

Rust-proof Technology Researching of Battery Shell Steel Between Production Processes

作　　者：吴首民[1] 王双红[2] 安成强[3] 

机构地区：[1]上海宝钢股份有限公司,上海200431 [2]沈阳大学机械工程学院材料科学系,辽宁沈阳110044 [3]沈阳理工大学环境与化学工程学院,辽宁沈阳110159

出　　处：《电镀与精饰》2016年第1期33-37,共5页Plating & Finishing

摘　　要：冷轧电池壳钢在生产序间过程易发生表面锈蚀,导致冲压性能下降。提出采用水性钝化液处理电池壳钢,使其表面形成化学吸附膜,替代防锈油改善板面的防锈蚀性能。采用扫描电镜及能谱仪分析了电池壳钢的表面形貌和表面成分;采用加速腐蚀试验等方法研究了水基钝化液JF-379对连退电池壳钢的防护效果。结果表明,电池壳钢表面存在Mn元素,易发生电化学腐蚀。水基钝化液JF-379在电池壳钢表面形成连续的化学吸附膜,明显提高连退电池钢板的表面耐蚀性。当最低使用JF-379质量分数为10%时防护效果好。Surface corrosion of cold rolled battery shell steel is easy to take place between the production processes,which will lead to the degradation of stamping properties. In this paper,chemical adsorption film was formed by using a water based passivating solution to treat the battery shell in order to replace rust-proof oil and improve the antirust performance. Surface morphology and surface composition of the battery shell steel were analyzed by SEM and EDS; protecting effect of the JF-379 water based passivating solution to continuous annealed battery shell steel was studied by accelerated corrosion test. The results showed that Mn element in the surface of battery shell steel was easy to result in electrochemical corrosion. The continuous chemical adsorption film formed on the battery steel surface could remarkably improve the surface antirust performance of the continuous annealed battery shell steel. When the used minimum mass fraction of JF-379 was 10%,the protecting effect was the best.

关 键 词：无油防锈 钝化 序间 电池壳钢 

分 类 号：TG174.4[金属学及工艺—金属表面处理]