Effect of Electromagnetic/Ultrasonic Compound Energy Field on Electrochemical Properties of Continuous Cast-Rolled Lead Alloy Anode Plate
摘 要
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120 μm细化为20 μm; 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18 mV和49 mV, 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。
Abstract
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 120 μm to 20 μm 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 PbO2. 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.
中图分类号 TG146
所属栏目 材料性能及其应用
基金项目
收稿日期 2011/10/22
修改稿日期 2012/6/26
网络出版日期
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备注崔燕青(1985-), 男, 江苏苏州人, 硕士研究生。
引用该论文: CUI Yan-qing,MAO Da-heng,LI Jian-ping,LI Wen-qi. Effect of Electromagnetic/Ultrasonic Compound Energy Field on Electrochemical Properties of Continuous Cast-Rolled Lead Alloy Anode Plate[J]. Materials for mechancial engineering, 2012, 36(9): 54~57
崔燕青,毛大恒,李建平,李文琪. 电磁/超声复合能场对连续铸轧铅合金阳极板电化学性能的影响[J]. 机械工程材料, 2012, 36(9): 54~57
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【5】李建平, 张家富, 毛大恒, 等.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, 39(15): 83-85.
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【9】IVANOV I, STEFANOV Y, NONCHEVA Z. Insoluble anodes used in hydrometallurgy-Part II: Anodic behaviour of lead and lead-alloy anodes[J].Hydrometallurgy, 2000, 57: 125-139.
【10】RASHKOV S, STEFANOV Y, NONCHEVA Z. Investigation of the processes of obtaining plastic treatment and electrochemical behaviour of lead alloys in their capacity as anodes during the electroextraction of zinc-Part II: Electrochemical formation of phase layers on binary Pb-Ag and Pb-Ca, and ternary Pb-Ag-Ca alloys in a sulphuric-acid electrolyte for zinc electroextraction[J].Hydrometallurgy, 1996, 40: 319-334.
【11】NEWNHAM R H.Corrosion rates of lead based anodes for zinc electrowinning at high current densities[J].Journal of Applied Electrochemistry, 1992, 22: 116-124.
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