Although we all know that the materials used in the cable tray are not easy to rust, they will still rust if they can not withstand outdoor use for a long time. This corrosion is a necessary condition. Let's introduce the following main rust conditions of the bridge:

首先，橋梁由鐵制成，鐵很容易生銹。除了其化學性質外，它還與外部條件有關。這就是我們經常稱之為生銹的東西。

First of all, bridges are made of iron, which is easy to rust. In addition to its chemical properties, it is also related to external conditions. This is what we often call rust.

二，生銹：

2、 Rust:

水分是使鐵易生銹的物質之一。當空氣中的氧氣溶解在水中時，氧氣在水環境中與鐵反應，而稱為氧化鐵的氧氣是生銹的。

Moisture is one of the substances that make iron rust easily. When the oxygen in the air is dissolved in water, the oxygen reacts with iron in the water environment, and the oxygen called iron oxide is rusty.

2，鐵銹是一種棕紅色的物質，很容易脫落，一塊鐵完全生銹，體積可以膨脹8倍。如果沒有去除銹跡，海綿生銹非常容易吸收水分，鐵會更快燃燒。

2. Rust is a brownish red substance, which is easy to fall off. A piece of iron is completely rusted, and its volume can expand 8 times. If the rust is not removed, the sponge will rust and absorb water easily, and the iron will burn faster.

三，除銹：

3、 Rust removal:

它可以用各種工具鏟掉，也可以溶解在酸性溶液中。

It can be removed with various tools or dissolved in acidic solution.

2.去除銹后，一定要對鐵的表面進行處理，涂上一層鉛丹，然后涂上?；蝈冇衅渌灰咨P的金屬。

2. After removing rust, the iron surface must be treated, coated with a layer of lead, and then coated. Or plated with other metal that is not easy to rust.

3.更有效的方法是在熨斗中加入一些其他金屬來制造不銹鋼合金。我們熟悉的不銹鋼是通過在鋼中添加少量鎳和鉻而制成的合金。

3. A more thorough method is to add some other metals to the iron to make stainless steel alloy. The familiar stainless steel is an alloy made by adding a small amount of nickel and chromium to the steel.

電纜托架可以連接到各種建筑物和管架支架上。在每個人都了解生銹條件后，我們可以提前預防。這不會影響橋梁的正常使用。如果維護良好，可以延長使用壽命。

Cable trays can be connected to various buildings and pipe rack supports. After everyone knows the rust conditions, we can prevent it in advance. This will not affect the normal use of the bridge. If well maintained, the service life can be extended.