【作者】 王宏；

【Author】 WANG Hong;School of Mechanical and Electrical Engineering,Weifang University;

【机构】 潍坊学院机电工程学院；

【摘要】 本文采用氯化钾镀锌工艺在钢板表面制备环保锌覆层,在四酸溶液体系中,加入稳定剂及调色剂,对锌覆层进行墨绿色钝化处理。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1.734μm,钝化膜层组织均匀致密。XPS分析结果表明,钝化膜由Cr、O、P、N、Zn元素组成,并可能以CrOOH、Cr(OH)3、Cr2O3、ZnO、Zn3(PO4)2·4H2O、FeOOH、Fe(OH)3和Cr2(SO4)3化合物的形式存在于钝化膜中。XRD分析结果表明,钝化膜中含有CrPO4、Cr(OH)3、CrOOH、Cr2O3、Zn(OH)2、Zn3(PO4)2·4H2O和Ag。经本文研究的墨绿色钝化工艺处理的环保锌覆层钢板,外观呈现墨绿色、色泽均匀、光度柔和,在实际生产中取得了很好的效果。更多还原

【Abstract】 Environmental Friendly Zinc Coating was formed by the potassium chloride zinc plating handicraft.Above it,blackishgreen colored passivation film was prepared by dipping galvanized steel in solution made of foue types of acid with certain stabilizer and toner.SEM showed that the film was even and homogeneous.Zinc coating,passivation film and iron combined colsely,there weren’t microstructure defects such as cracks etc between them.The total thickness of zinc coating and passivation film reached 12.423μm,and blackishgreen colored passivation film was 1.734μm.XPS showed that there were Cr,O,P,N,Zn in the film,they probably existed in Cr(OH)3,CrOOH,Cr2O3,ZnO,Zn3(PO4)2·4H2O,FeOOH,Fe(OH)3 and Cr2(SO4)3.XRD also showed that except the Zn crystal(zinc plating tier),other substances had appeared,they included CrPO4,Cr(OH)3,CrOOH,Cr2O3,Zn(OH)2,2ZnO·CrO3·H2O,Zn3(PO4)2·4H2O and Ag.In a word,the appearance of galvanized sample treated by the optimization passivation craft is blackishgreen,colour is uniform and lustre is gentle.Furthermore,this blackishgreen colored passivation craft has good effects in practical production.更多还原