冷却方式对电积锌用铸态Pb-Ag阳极耐蚀性的影响

腐蚀与防护, 2012, 33(12): 1039-1126.

冷却方式对电积锌用铸态Pb-Ag阳极耐蚀性的影响

袁学韬 ^1, , 雷扬 ^2, , 吕旭东 ^3, , 周裕高 ^4, , 华志强 ^5, , 王磊 ^6, , 李弢 ^7,

1.北京有色金属研究总院,北京100088

2.北京有色金属研究总院,北京100088

3.北京有色金属研究总院,北京100088

4.南丹县南方有色冶炼有限责任公司,河池547000

5.北京有色金属研究总院,北京100088

6.北京有色金属研究总院,北京100088

7.北京有色金属研究总院,北京100088

基金项目: 国家科技支撑计划项目(2012BAE06806) 广西千亿元产业重大科技攻关项目(2012AA04018)

关键词：铸态铅阳极 , 电积锌 , 冷却方式 , 耐蚀性

Influence of Cooling Type on Electrochemical Corrosion Behavior of As-cast Pb-Ag Anode in Zinc Electrowinning

Keywords： as-cast lead alloy anode , zinc electrowinning , cooling type,corrosion resistance ,

采用热场扫描电子显微镜和电化学工作站对不同冷却速率制备的铸态Pb-Ag合金酌微观组织和电化学腐蚀行为进行了测试。结果表明，水冷方式会显著提高环形胞状物边界的含量，从而降低合金在电积锌液中的耐蚀性。

The microstructure and electrochemical corrosion behavior of as cast Pb-Ag alloy prepared at different cooling rates were studied by field emission SEM (FESEM) and electrochemical workstation. The results show that the water-cooled lead alloy can obviously increase the faction of cellular boundaries and consequently decrease the corrosion resistance of lead alloy in zinc electrowinning.

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