镀锌钢板墨绿色钝化膜分析研究  

Analysis of dark green passivation film on galvanized steel sheet

作　　者：王宏[1] 

机构地区：[1]潍坊学院机电工程学院,山东潍坊261061

出　　处：《电镀与涂饰》2010年第4期29-31,共3页Electroplating & Finishing

基　　金：国家星火计划项目(2007EA740084);山东省科技攻关项目(2008GG10008008);山东省星火计划项目(2008XH017)

摘　　要：对镀锌层上墨绿色钝化膜进行了扫描电子显微镜(SEM)和X射线光电子能谱(XPS)分析。SEM观察表明,钝化膜表面较为均匀平整,钝化膜层与镀锌层之间以及镀锌层与钢铁基体之间均结合紧密,没有裂纹等组织缺陷出现,镀锌层及钝化膜层较厚,共12.423μm,其中墨绿色钝化膜层厚度为1.734μm。XPS分析结果表明,钝化膜由Cr、O、P、N、Zn等元素组成,并可能以CrOOH、Cr(OH)3、Cr2O3、ZnO、Zn3(PO4)2·4H2O、FeOOH、Fe(OH)3、Cr2(SO4)3等化合物的形式存在于钝化膜中。经墨绿色钝化工艺处理的环保锌覆层钢板,外观呈墨绿色,色泽均匀,光度柔和,满足了客户要求。The dark green passivation film on galvanized steel sheet was analyzed by scanning electron microscopy （SEM） and X-ray photoelectron spectroscopy （XPS）. SEM images showed that the film is even and homogeneous. The bond is firm between passivation film/zinc coating and zinc coating/steel without microstructure defects like cracks. The total thickness of zinc coating and passivation film reaches 12.423 μm, and dark green passivation film is 1.734 μm. XPS results showed that the passivation film consists of Cr, O, P, N and Zn existing probably in the form of compounds such as CrOOH, Cr（OH）3, Cr2O3, ZnO, Zn3（PO4）2·4H2O, FeOOH, Fe（OH）3 and Cr2（SO4）3. The appearance of sample is dark green with uniform colour and soft brightness, and it meets the requirements of customers.

关 键 词：钢板 镀锌 墨绿色钝化 扫描电子显微镜 X射线光电子能谱 

分 类 号：TQ153.15[化学工程—电化学工业] TG178[金属学及工艺—金属表面处理]