| 跨海电气化铁路特大桥接触网防腐蚀设计研究 |
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| 作者单位： | ;1.中铁工程设计咨询集团有限公司 |
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| 摘 要： | 通过研究金属腐蚀机理和试验的方式,构建跨海电气化铁路接触网防腐蚀技术设计,保证接触网在海洋大气环境中使用寿命。通过防腐理论研究及盐雾试验验证,结论:(1)热浸镀锌防腐技术处理的钢材质构件在海洋大气环境适用过程中,防腐耐久性很难满足长期适用要求;(2)钢材质构件、铝合金材质构件采用涂层防腐处理,可以大幅度地提高金属表层的抗防腐能力,延长金属构件的使用寿命;(3)铝合金材质构件在典型的大气环境下抗腐蚀能力要强于钢材质构件。
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| 关 键 词： | 电气化铁路 接触网 海洋大气环境 防腐 镀锌 涂层 |
Research on Anti-corrosion Design of OCS on Sea-crossing Electric Railway Bridge |
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| Affiliation: | ,China Railway Engineering Design and Consultant Group Co.,Ltd. |
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| Abstract: | The corrosion protection design of the overhead contact system on the sea-crossing electric railway is conducted based on the study of metal corrosion mechanism and test method to ensure the service life of OCS in the marine atmospheric environment. The corrosion theory study and the salt spray test show that:( 1) the metal corrosion by means of hot-dip galvanized anti-corrosion treatment can hardly meet the long-term durability requirement;( 2) the anti-corrosion coating treatment can greatly improve anti-corrosion performance of the steel material components and aluminum alloy components,and extend the lifetime of metal components;( 3) the anti-corrosion performance of aluminum alloy components is stronger than that of the steel material components under the typical atmospheric condition. |
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| Keywords: | Electric railway Overhead contact system Marine atmospheric environment Anti-corrosion Galvanizing Coating |
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