在役输电线路钢芯铝绞线腐蚀状态评估与分析
Analysis of Corrosion Conditions of In-service ACSR
摘 要
为研究在役钢芯铝绞线(ACSR)的腐蚀状态，对典型气候下其各组成部分的腐蚀情况进行了宏观和微观研究，并结合其运行环境，分析了腐蚀原因。结果表明，腐蚀较为严重的是外层铝绞线，局部已出现腐蚀坑，钢芯基体未发生明显腐蚀; 腐蚀产物可以降低铝绞线的腐蚀速率，但其对钢芯的腐蚀速率有提高作用。建议应更加注重外层铝绞线的腐蚀监测工作。
在役
大气腐蚀
外层铝绞线
监测
aluminum conductor steel reinforced (ACSR)
in service
atmospheric corrosion
outer aluminum stranded wire
monitoring
Abstract
In order to analyze the corrosion conditions of in-service aluminum conductor steel reinforced (ACSR), the atmospheric corrosion of its components in typical climate was studied by macroscopic and microscopic methods. According to its operating environment, the corrosion causes were also analyzed. The results showed that the corrosion of the outer aluminum stranded wires was more serious than that of others. And partial corrosion pits were found on the outer layers of aluminum stranded wires. No obvious corrosion occured on the steel core matrix. Additionally, corrosion products reduced the corrosion rate of aluminum stranded wire but accelerated the corrosion of the steel core. Through this research, more attention should be paid to monitor the outer aluminum stranded wires.
中图分类号 TG172
所属栏目 应用技术
基金项目 国家电网公司科研项目(GC71-12-013)
收稿日期 2013/7/8
修改稿日期
网络出版日期
作者单位点击查看
备注夏开全(1969-),高级工程师,博士,
引用该论文: XIA Kai-quan,YU Jun-chao,DENG Yuan-jing,REN Xi-chun. Analysis of Corrosion Conditions of In-service ACSR[J]. Corrosion & Protection, 2014, 35(5): 495
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参考文献
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【3】张建堃,陈国宏,王家庆,等. 钢芯铝绞导线大气腐蚀产物层的结构及腐蚀机理[J]. 中国有色金属学报,2011,21(2):411-417.
【4】宗庆彬,黎学明,杨萍,等. 钢芯铝绞线的铝线在NaCl溶液中的腐蚀行为[J]. 材料保护,2012,43(3):33-36,40.
【5】刘秀玉,苗帅,詹成伟,等. 钢芯铝绞线中的电偶腐蚀行为[J]. 材料保护,2010,43(7):53-54,79.
【6】周少玲,胡晓黎,岳增武. 220 kV钢芯铝绞线断股事故化学分析[J]. 腐蚀与防护,2011,32(5):392-394.
【7】韩德盛,李荻. 海洋大气湿度对LY12铝合金初期腐蚀的影响[J]. 中国腐蚀与防护学报,2007,27(3):134-136.
【8】OH S J,COOK D C,TOWNSEND H E. Atmospheric corrosion of different steels in marine,rural and industrial environments[J]. Corrosion Science,1999,41(9):1687-1702.
【9】YAMASHITA M,NAGANO H,MISAWA T,et al. Structure of protective rust layers formed on weathering steels by long-term exposure in the industrial atmospheres of Japan and North America[J]. ISIJ international,1998,38(3):285-290.
【10】VERNON W H J. A laboratory study of the atmospheric corrosion of metals[J]. Transactions of the Faraday Society,1935,31:1668-1700.
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