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施加电磁/超声复合能场连续铸轧出了铅合金阳极板,测试了其电化学性能,并与普通连续铸轧阳极板和工业用阳极板进行了对比。结果表明:施加复合能场之后,铅合金阳极板的平均晶粒尺寸由连续铸轧的120μm细化为20μm;复合能场连续铸轧阳极板的析氧电位比普通连续铸轧阳极板和工业用阳极板的分别降低了18mV和49mV,腐蚀速率分别减小了6.1%和34.8%;复合能场连续铸轧阳极板表面更易于形成PbO2氧化膜;施加复合能场连续铸轧与普通连续铸轧的阳极板表面氧化膜均为小颗粒聚集体,且前者更加细小均匀,与基体结合更紧密,工业用阳极板表面氧化膜为较疏松的大颗粒堆积物。

A lead alloy anode plate was cast-rolled with combination of electromagnetic field could ultrasonic field, and its electrochemical properties were tested and compared with the continuous cast rolled and industrial anode plates. The results show that the combination field could decrease the grain size greatly from 120μm to 20μm compared to the continuous cast-rolling. The oxygen evolution potential of compound energy field continuous cast- rolled anode plate was 18 mV and 49 mV lower than that of continuous cast rolled anode plate and industrial anode plate, respectively, and the corrosion rate decrease by 6. 1% and 34. 8%. The surface of compound energy field continuous cast-rolled anode plate was more easily to generate oxidation film Pb()2. The oxidation films on the surface of compound energy field continuous cast-rolled and continuous cast-rolled anode plates all were aggregate with small particles, and the former was finer and more uniform, and was more compact bonding with the substrate. The oxidation film on industrial anode plate surface was fair loose accumulation with large particles.

参考文献

[1] 王恒章.四元合金阳极板在湿法炼锌中的应用[J].有色冶炼,2001(06):18-20.
[2] 衷水平,赖延清,蒋良兴,田忠良,李劼,刘业翔.锌电积新型阳极与电积新工艺研究进展[J].材料导报,2008(02):86-89.
[3] 屈伟光.锌电解四元合金阳极的工业试验[J].金属材料与冶金工程,2009(02):43-45.
[4] 李建平,张家富,毛大恒,张生芳.铅板连续铸轧中轧速对温度场和带坯组织的影响[J].热加工工艺,2010(15):83-85.
[5] 衷水平,LAI Yan-qing,蒋良兴,TIAN Zhong-liang,李劼,LIU Ye-xiang.锌电积用Pb-Ag-Ca-Sr四元合金阳极的阳极极化行为[J].中国有色金属学报,2008(07):1342-1346.
[6] Ivanov I.;Stefanov Y. .Insoluble anodes used in hydrometallurgy Part I. Corrosion resistance of lead and lead alloy anodes[J].Hydrometallurgy,2000(2):109-124.
[7] Ivanov I.;Stefanov Y. .Insoluble anodes used in hydrometallurgy Part II. Anodic behaviour of lead and lead-alloy anodes[J].Hydrometallurgy,2000(2):125-139.
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