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| Anti-corrosion Properties of Protective Coatings for Transmission Line Iron Tower in Coastal Area |
| Received:May 25, 2015 Revised:August 15, 2015 |
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| DOI：10.7643/issn.1672-9242.2015.04.015 |
| KeyWord:transmission tower coastal area anticorrosion coating salt spray test |
| Author | Institution |
| LIU Feng |
Science and Technology on Marine Corrosion and Protection Laboratory， Luoyang Ship Material Research Institute，Qingdao ， China |
| SONG Hong-qing |
Science and Technology on Marine Corrosion and Protection Laboratory， Luoyang Ship Material Research Institute，Qingdao ， China |
| HUANG Zheng-ran |
1. Science and Technology on Marine Corrosion and Protection Laboratory， Luoyang Ship Material Research Institute，Qingdao ， China; 2. School of Chemistry and Chemical Engineering， Ocean University of China， Qingdao ， China |
| FAN Ya-zhou |
Jiangmen Power Supply Bureau of Guangdong Power Grid Corp.， Jiangmen ， China |
| LIN Yue-ling |
Jiangmen DGM Electric Power Equipment Factory Co.， Ltd.， Jiangmen ， China |
| LONG Zi-jun |
Jiangmen DGM Electric Power Equipment Factory Co.， Ltd.， Jiangmen ， China |
| XU Li-kun |
Science and Technology on Marine Corrosion and Protection Laboratory， Luoyang Ship Material Research Institute，Qingdao ， China |
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| Abstract: |
| Objective To study the corrosion failure behavior and evaluate the protection property of the coating for the corrosion critical component on transmission line iron tower, and to provide test proofs for determining the calendar life of coatings and formulating maintenance compendium. Methods The anti-corrosion properties of Zn coating, zinc rich paint/Zn, and rust coating/Zn for the transmission line iron tower were investigated by neutral salt spray test to simulate the environment of coastal area. The morphology and electrochemical properties of the coatings were evaluated by microscope, polarization curve and EIS. Results The corrosion occurred in large area of the Zn coating and zinc rich paint/Zn coating after 150 h of salt spray treatment, while no obvious corrosion was observed with rust coating/Zn after 2000 h of salt spray treatment. Conclusion The anti-corrosion performance of rust coating/Zn was superior to the other two coatings. |
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