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通过实地走访、文献查阅等方式并结合对腐蚀影响因素及海洋腐蚀规律的分析,探讨了真实海洋环境中的铁闸不同部位的腐蚀情况,得出以下结论:①在海洋中,铁闸的腐蚀速率受到钢铁材料本身、海洋环境因素等的综合影响;②同一地区海水对铁闸不同水深部位的腐蚀速率,会因介质接触情况及电化学行为的差异而有显著不同,其中浪花飞溅区是铁闸表面腐蚀最为严重的区域,这与理论模型的分析结果及原高考题所给信息均不吻合。基于此,简单介绍了当前国内外用于钢构件浪花飞溅区防腐的四种常见技术,即喷涂涂层防护、耐蚀材料防护、复层矿脂包覆及电化学保护。
Through field visits, literature review and other means, combined with the analysis of corrosion factors and the law of marine corrosion, the corrosion of different parts of the iron gate in the real marine environment was discussed. The conclusions are as follows: ①In the ocean, the iron gate corrosion The rate of corrosion is affected by the steel material itself and the marine environmental factors. ② The corrosion rate of seawater in different water depths in the same area may be significantly different due to the differences in the media exposure and electrochemical behavior. The spray splash zone is iron The area with the most serious corrosion on the gate surface does not coincide with the analysis result of the theoretical model and the information given by the original entrance exam. Based on this, four common technologies for corrosion protection of steel splash spray zone are introduced briefly at home and abroad, namely spray coating protection, anticorrosive material protection, cladding petrolatum coating and electrochemical protection.