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在沿海和重工业污染等重腐蚀环境中,输电杆塔钢构件热镀锌防腐技术已不能满足使用寿命的要求。采用热浸镀锌铝及其多元合金化镀层,在不明显增加成本情况下,较热浸镀纯锌可延长1倍以上防腐蚀寿命;热喷涂锌及锌铝合金则具有更强的防腐功效,较热镀锌可延长使用寿命1～8倍,全寿命分析性价比是热镀锌的2.4倍以上。以热喷涂锌铝合金替代传统热镀锌是未来实现杆塔钢构件长效防腐的重要发展方向。
Abstract：In coastal and heavy industry pollution environment,the hot-dip galvanizing anti-corrosion technology can no longer meet service life requirements of transmission tower steel components.Hot-dip galvanized Zn-Al and its multiple alloying coating could prolong service life more than 1 time,without a higher cost.Thermal spraying zinc and zinc aluminum alloy coating show better corrosion resistance,extending the service life 1-8 times.Life-cycle cost-effective assessment is 2.4 times than that of hot-dip galvanizing.Thermal spraying zinc alloy to replace the traditional galvanized is the development direction to achieve long-term anti-corrosion tower steel components.
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基本信息:
中图分类号:TG178
引用信息:
[1]樊志彬,李辛庚.输电杆塔钢构件腐蚀防护技术现状和发展趋势[J].山东电力技术,2013,No.191(01):30-34.
2013-01-15
2013-01-15