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:
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.
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. 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.
3、 Rust removal:
It can be removed with various tools or dissolved in acidic solution.
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. 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.
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.