| 电镀锌钢板CrO3—H3PO4—SiO2体系钝化膜 |
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| 引用本文： | 卢燕平,任玉苓.电镀锌钢板CrO3—H3PO4—SiO2体系钝化膜[J].北京科技大学学报,1997,19(4):355-359. |
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| 作者姓名： | 卢燕平 任玉苓 |
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| 作者单位： | 北京科技大学材料科学与工程学院!北京，100083(卢燕平，吴继勋)，宝山钢铁（集团）公司!上海，201900(任玉苓) |
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| 摘 要： | 研究了电镀锌钢板ＣｒＯ３－Ｈ３ＰＯ４－ＳｉＯ２体系钝化膜的成分与结构，并对钝化膜的耐蚀性及其原因进行了探讨，结果表明，该钝化膜是１种由ＣｒＯ３，Ｃｒ（ＯＨ）３，ＣｒＯＯＨ，ＺｎＣｒＯ４，ＺｎＳｉＯ３，Ｚｎ３（ＰＯ４）２，ＣｒＰＯ４和ＳｉＯ２等化合物组成的，具有凝胶网络状结构的厚型复合转化膜，这种膜具有良好的屏蔽效应和缓蚀作用，能明显了改善镀锌钢板抗白锈的能力，它的耐蚀性是ＣｒＯ３－ＳｉＯ２体系钝化
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| 关 键 词： | 铬酸盐 腐蚀 纯化膜 钢板 镀锌 电镀 |
Passive Film Formed from CrO_3-H_3PO_4-SiO_2 Systems on Galvanized Steel Sheet |
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| Lu Yanping, Ren Yuling, Wu Jixun.Passive Film Formed from CrO_3-H_3PO_4-SiO_2 Systems on Galvanized Steel Sheet[J].Journal of University of Science and Technology Beijing,1997,19(4):355-359. |
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| Authors: | Lu Yanping Ren Yuling Wu Jixun |
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| Abstract: | The composition and structure of passive film formed from CrO3-H3PO4SiO2, systems on galvanized steel sheet were inveshgated, the corrosion resistance and itsprotective causes of the film were also discussed. The experimental results showed thatthe film is a thick type of complex conversion coating with gelatinous net structurecontaining Cro3, Cr(OH)3, CrOOH, ZnCrO4, ZnSiO3,, Zn3(PO3)2, CrPO4 and SiO2, etC. Thewhite rust-resisting property of the film is of three times better than that of filmformed from CrO3, - SiO2, systems because of good shielding and inhibihng. |
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| Keywords: | galvanized steel sheet chromate conversion coating corrosion |
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