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Are steel buildings really easy to rust

Time:[2021-5-29]  Hits:2810

When it comes to the connection between steel buildings and rainwater, I believe that the first thing many people think of is that steel will rust when it meets with water; It's true that the traditional steel will soon rust after being exposed to the wind, sun and rain, so it's reasonable for people to worry about it. Then, can the current popular steel structure house withstand the test in the rainy season?

First of all, let's talk about the corrosion resistance of steel. When the traditional steel is directly exposed to the air, it will soon rust when it comes into contact with the rain. Now the raw material steel used in light steel structure houses is basically aluminized zinc steel. This kind of steel is to add a layer of zinc and aluminum mixed coating on the surface of the traditional steel, When the steel surface comes into contact with the corrosion source, it will first corrode the zinc in the coating. When the zinc is corroded, the aluminum exposed in the air will form a dense and stable oxide film, which can protect the remaining zinc layer from corrosion. The conclusion is based on the experiment.

Corrosion test:

The results show that the Al Zn coating material performs well in the salt spray experiment

1. Steel bar: the steel bar without any protection is corroded immediately;

2. Ordinary heavy steel: Ordinary Heavy Steel with simple coating also had serious corrosion in seven days of experiment;

3. Light steel: only the surface of steel plated with aluminum and zinc is still smooth and shiny, and there is almost no trace of corrosion.

Copyright:佛山市勝邦鋼結構有限公司 Foshan Shengbang Steel Structure Co., Ltd. Record Number:粵ICP備13078463號
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