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。
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.
出处
《腐蚀与防护》
北大核心
2014年第5期495-499,共5页
Corrosion & Protection
基金
国家电网公司科研项目(GC71-12-013)
关键词
钢芯铝绞线
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
