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钢结构喷铝喷锌防腐的技术优势和应用

发布时间:2015-9-6 9:04:26 浏览次数:632



钢结构喷铝喷锌防腐的技术优势

电弧喷涂同火焰喷涂相比,由于采用了电能代替气体燃烧,大大提高了工作效率和工作安全性,特别是电弧喷涂机械化设备的出现,电弧喷涂技术已完全可以满足桥梁建设工期的需要,且电弧温度远高于火焰,涂层结合力也远大于火焰喷涂,因此涂层质量也完全可以满足长效防腐的需要。美国由于人工费用高,使用电弧喷涂防腐施工的费用甚至低于重防腐油漆。经过几十年的考验证明,喷涂技术是钢铁结构长效防腐的最好方法,这个结论已经得到世界许多国家的政府部门和工程界的认可。

钢结构喷铝喷锌防腐的应用
先后在煤矿、铁道、水利、港口码头、冶金、机械、广播电视、医疗、电力、消防等领域得到广泛应用,如宝山钢铁集团马迹山港码头钢桩、上海磁悬浮快速列车轨道功能件、长江三峡水利枢纽工程、武汉军山长江大桥钢箱梁及桥面等国家重点建设项目以及淳安千岛湖南浦大桥、长江黄柏河大桥、下牢溪大桥、广州机场三元里立交桥、徐连高速公路邳州运河大桥等钢结构桥梁均采用了电弧喷涂长效防腐技术进行了腐蚀防护,并取得很好的防腐效果。我国已完全有能力采用电弧喷涂长效防腐技术解决国家大型钢结构桥梁的腐蚀防护问题。

桥梁钢结构的重防腐技术至今,逐渐形成了两大发展趋势,一是发展迅速的以无机富锌涂料为基底的重防腐体系,二是较为成熟的以金属喷涂层作为基底的重防腐体系,这两种体系由于具有优良的防腐性能和环境适应性受到各类型钢结构桥梁防腐的关注。在未来的几十年将为国家节约大量的钢结构桥防腐维护费用,减少环境污染,延长钢桥的使用寿命,产生巨大的经济效益和社会效益。



Steel structure spray aluminum zinc anticorrosion technology advantage

Arc spraying and flame spraying, compared with the electricity instead of gas burning, greatly improving the work efficiency and work safety, especially the emergence of mechanization of arc spraying equipment, electric arc spraying technology has been completely can meet the needs of bridge construction time limit for a project, and the arc temperature is much higher than the flame, coating binding force are also far bigger than flame spraying, so the coating quality can also meet the needs of the long-term anticorrosion. The United States due to the high cost of artificial, using electric arc spraying anti-corrosion construction costs even lower than heavy anticorrosive paint. After decades of test proves that the coating technology is one of the best ways to long-term anti-corrosion steel structure, the conclusion has been the world the government department and the engineering recognition in many countries.

The application of spray aluminum zinc corrosion of steel structure

Successively in coal mine, railway, water conservancy, port terminals, metallurgy, machinery, radio and television, medical, power, fire and other fields is widely used, such as baoshan iron and steel group, horse trails mountain wharf steel pile, Shanghai maglev fast train tracks function, the Yangtze river three gorges water conservancy hub project, steel box girder of wuhan junshan changjiang river bridge and bridge deck national key construction projects and ChunAn thousand island lake huangbo Nanpu Bridge, the Yangtze river bridge, the prison creek bridge, overpass in guangzhou airport three yuan, if the canal xu lian highway bridge steel structure bridge adopts the electric arc spraying long-term anti-corrosion technology for corrosion protection, and achieved very good preservation effect. China is fully capable of using arc spraying long-term anticorrosion technology to solve the corrosion protection of the country's large steel bridge.

Heavy anticorrosive technology of bridge steel structure, gradually formed two big development trend, the one is developing rapidly with inorganic zinc-rich coating base system of heavy-duty, 2 it is relatively mature in metal spraying layer of the system as a basal, these two systems because it has excellent anti-corrosion performance and environmental adaptability under the attention of all kinds of bridge steel structure anticorrosion. Over the coming decades will be for the country save a lot of steel structure bridge anti-corrosion maintenance costs, reduce environmental pollution, prolong the service life of steel Bridges, produce a great economic and social benefits.



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