Corrosion Behavior and Influencing Factors of Strain Clamp for High Voltage Electricity Transmission
摘 要
将JY-120/20型压接管和LGJ-120/20型钢芯铝绞线压制成耐张线夹,采用电化学法以及干湿交替周浸法研究了该线夹在不同pH和温度的5%(质量分数)NaCl溶液中的腐蚀行为,测试了电阻并观察了腐蚀形貌,分析了腐蚀影响因素。结果表明:耐张线夹的电阻随腐蚀时间的延长总体呈增大趋势,但由于腐蚀过程中腐蚀产物的生成与脱落,在增大趋势中出现次级波动;腐蚀优先在压接管内部缺陷处发生,逐渐向无缺陷区域发展,并在腐蚀产物脱落的区域向深处发展;随着腐蚀溶液pH的降低或温度的升高,线夹的腐蚀速率增大。
Abstract
JY-120/20 press-connect-tube and LGJ-120/20 steel-cored aluminum strand were pressed to strain clamps. The corrosion behavior of the strain clamp was investigated by the electrochemical measurement and dry-wet immersion test in a 5wt% NaCl solution with various pH values at different temperatures. The resistance was tested and the corrosion morphology was observed. The influence factors of corrosion were also analyzed. The results show that the resistance of strain clamp generally showed an increasing trend with the elongation of corrosion time. However, due to the formation and spalling of corrosion products during the corrosion process, the secondary fluctuations in the increasing trend were observed. The corrosion preferentially occurred at the inner surface defects of the press-connect-tube, and then extended to the non-defect area. At the spalling area, the corrosion developed into the inner of the tube. The corrosion rate of the strain clamp increased with the decrease of pH value and increase of temperature of the corrosion solution.
中图分类号 TG174.3 DOI 10.11973/jxgccl201704016
所属栏目 材料性能及应用
基金项目 国家电网专项资金资助项目(ZXZB-2015-009);安徽省科技攻关计划重大项目(1301021006)
收稿日期 2015/12/15
修改稿日期 2017/2/22
网络出版日期
作者单位点击查看
备注陈国宏(1968-),男,吉林扶余人,高级工程师,硕士.
引用该论文: CHEN Guo-hong,JI Kun,YAN Bo,ZHAN Ma-ji,WANG Ruo-min,ZHANG Tao,DU Xiao-dong. Corrosion Behavior and Influencing Factors of Strain Clamp for High Voltage Electricity Transmission[J]. Materials for mechancial engineering, 2017, 41(4): 74~79
陈国宏,季坤,严波,詹马骥,王若民,张涛,杜晓东. 高压输电耐张线夹的腐蚀行为及其影响因素[J]. 机械工程材料, 2017, 41(4): 74~79
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】安百刚, 张学元, 韩恩厚,等. 铝和铝合金的大气腐蚀研究现状[J]. 中国有色金属学报,2001, 11(s2): 11-14.
【2】张建堃, 陈国宏, 王家庆, 等. 干/湿NaCl盐雾条件下钢芯铝绞(ACSR) 导线腐蚀层结构及腐蚀机理[J]. 腐蚀与防护, 2010, 31(8): 581-586.
【3】李旭东, 穆志韬, 贾明明. 加载频率对航空铝合金腐蚀疲劳裂纹扩展速率的影响[J]. 机械工程材料, 2014, 38(7): 50-52.
【4】张海威, 何宇廷, 范超华, 等. 2A12铝合金不同方法腐蚀疲劳的寿命及断口形貌[J]. 机械工程材料, 2012, 36(5): 26-28.
【5】MENDOZA A R, CORVO F. Outdoor and indoor atmospheric corrosion of nonferrous metals [J]. Corrosion Science, 2000, 42(7): 1123-1147.
【6】FUENTE D D, OTERO-HUERTA E, MORCILLO M. Studies of long-term weathering of aluminum in the atmosphere [J]. Corrosion Science, 2007, 49(7): 3134-3148.
【7】ELOLAA S, OTERO T F, PORRO A. Evolution of the pitting of aluminum exposed to the atmosphere [J]. Corrosion, 1992, 48(10): 854-863.
【8】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, 45(3): 33-40.
【9】郑锦荣, 张宝霖. 输电导线腐蚀因素分析[J]. 防蚀工程, 2006, 20(4): 393-400.
【10】李小刚, 董超芳, 肖葵, 等. 金属大气腐蚀初期行为与机理[M]. 北京: 科学出版社, 2009.
【11】刘永辉, 张佩芬. 金属腐蚀学原理[M]. 北京: 航空工业出版社, 1993.
【12】黄新民, 解挺. 材料分析测试方法[M]. 北京: 国防工业出版社, 2011.
【2】张建堃, 陈国宏, 王家庆, 等. 干/湿NaCl盐雾条件下钢芯铝绞(ACSR) 导线腐蚀层结构及腐蚀机理[J]. 腐蚀与防护, 2010, 31(8): 581-586.
【3】李旭东, 穆志韬, 贾明明. 加载频率对航空铝合金腐蚀疲劳裂纹扩展速率的影响[J]. 机械工程材料, 2014, 38(7): 50-52.
【4】张海威, 何宇廷, 范超华, 等. 2A12铝合金不同方法腐蚀疲劳的寿命及断口形貌[J]. 机械工程材料, 2012, 36(5): 26-28.
【5】MENDOZA A R, CORVO F. Outdoor and indoor atmospheric corrosion of nonferrous metals [J]. Corrosion Science, 2000, 42(7): 1123-1147.
【6】FUENTE D D, OTERO-HUERTA E, MORCILLO M. Studies of long-term weathering of aluminum in the atmosphere [J]. Corrosion Science, 2007, 49(7): 3134-3148.
【7】ELOLAA S, OTERO T F, PORRO A. Evolution of the pitting of aluminum exposed to the atmosphere [J]. Corrosion, 1992, 48(10): 854-863.
【8】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, 45(3): 33-40.
【9】郑锦荣, 张宝霖. 输电导线腐蚀因素分析[J]. 防蚀工程, 2006, 20(4): 393-400.
【10】李小刚, 董超芳, 肖葵, 等. 金属大气腐蚀初期行为与机理[M]. 北京: 科学出版社, 2009.
【11】刘永辉, 张佩芬. 金属腐蚀学原理[M]. 北京: 航空工业出版社, 1993.
【12】黄新民, 解挺. 材料分析测试方法[M]. 北京: 国防工业出版社, 2011.
相关信息