镀锌板新型环保钝化层的结构和耐蚀性能
Structure and Corrosion Resistance of Galvanized Steel Sheets Treated by Environmental Friendly Passivation Solution
摘 要
利用扫描电镜、辉光光谱、阳极极化和中性盐雾等测试手段,分析了热镀锌板钝化层的表面形貌、微观成分和耐蚀性能.结果表明,新型环保三价铬钝化液符合ROHS(欧盟电子产品环保认证)标准,封孔剂的加入,弥补了Cr(Ⅲ)钝化的不足,达到了Cr(Ⅵ)的钝化效果,使得新型环保钝化热镀锌板的耐蚀性优于传统铬酸盐钝化热镀锌板.
镀锌
防腐蚀性能
environmental friendly passivation
galvanizing
corrosion resistance
Abstract
By using scanning electron microscopy,glow discharge optical emission spectrometry,anodic polarization and neutral salt spray testing,the surface morphology,composition and corrosion resistance of new environmental friendly passivation hot galvanized steel was analyzed.The results indicated that the new environmental friendly passivation solution satisfied the ROHS standard.By adding plugging solvent,the corrosion resistance of new environmental friendly passivation galvanized steel was better than that of traditional hot hexavalent chrome passivation galvanized steel.
中图分类号 TG178
所属栏目 试验研究
基金项目
收稿日期 2009/2/10
修改稿日期 2009/4/15
网络出版日期
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引用该论文: ZHONG Bin,XU Xiao-lian,CHEN Yi-qing,AI Fang-fang,XIAO Yu,XU Cheng-ming,WANG Yong-ming,LI Feng. Structure and Corrosion Resistance of Galvanized Steel Sheets Treated by Environmental Friendly Passivation Solution[J]. Corrosion & Protection, 2010, 31(2): 139～141
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参考文献
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【2】Boose C A,Stancu R.Chromate free passive layers on zinc and zinc alloy coating[J].UPB Sci Bull Ser B,2001,36(3):105-110.
【3】柳长福,涂元强,郭玉华.镀锡板的无铬钝化[J].武钢技术,2003,41(5):47-49.
【4】吴海江,陈锦虹,卢锦堂.镀锌层无铬钝化耐蚀机理的研究进展[J].材料保护,2004,37(3):43-45.
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