宝钢二次冷轧无锡钢板表面结构分析  

Analysis of surface structure of double cold reduction tin free steel of Baosteel

作　　者：朱国和[1] 周庚瑞[2] 

机构地区：[1]宝山钢铁股份有限公司研究院,上海201900 [2]宝山钢铁股份有限公司冷轧薄板厂,上海200431

出　　处：《宝钢技术》2014年第3期58-62,共5页Baosteel Technology

摘　　要：用两步法在二次冷轧基板上电镀沉积金属铬层和氧化铬层。用SEM观察了镀铬板的表面形貌,用XRD与XPS分析了镀铬层的结构与成分。结果表明,镀铬板表面平整,镀层均匀;镀层分为两层,即外层为Cr_2O_3、Cr(OH)_3和CrOOH,内层是零价的金属Cr;镀铬钢板的表面只存在+3价的Cr和0价的Cr,这两种铬对人体无害,不存在对人体有害的+6价铬。Using two-step method, chromium and chromium oxide films were deposited on the surface of double cold rolling steel strip. SEM was used to observe the surface morphology, XRD and XPS were used to analyse the composition and structure of chromium electroplated films. The results show that the surface is smooth, and the film is quite even. The surface contains two layers, the outer one is a mixture of Cr203, Cr（ OH）3 and CrOOH. The inner layer is chromium metal. On the surface of chromium plated steel, only Cr^3＋ and Cr were detected,which have been proved harmless to human health. No Cr^6＋ was found on the plated surface.

关 键 词：无锡钢板 表面结构 二次冷轧 

分 类 号：TG335.5[金属学及工艺—金属压力加工]