Containers are one type of packaging used in sea, river, rail, land and air transport. There are two types of containers, which are air and sea, the latter being the most used because of the costs presented in logistics in large container ships versus the costs associated with air transport.
Container manufacturing is mainly carried out on steel with approximately 0.5% - 1.5% copper and other elements to modify the metallographic and mechanical characteristics, this steel is known as WEATHERING STEEL (“weather resistant steel”). However, you can also find containers made of other materials such as aluminum or plywood with fiberglass reinforcement.
A container is essentially a rectangular box that can be of different dimensions given according to the ISO standard and is made up of a mechanical support structure (frame) and surface sheets that make up the walls and ceiling, the floor is usually made of wood. The following types can be found:
* Dry Van, estos se encuentran de 20 y 40 ft
* Open top
* Flat Rack
* Open Side
Main risks of container damage
A container can make millions of trips during its useful life, so it’s exposed to different conditions and forces that decrease its mechanical characteristics due to the fatigue of the material used for its construction.
The sheets and beams used in the manufacture are welded together, thus creating zones of thermal affectation causing changes in the crystallographic structure of the material and reducing its mechanical resistance. The above added to the fatigue of the material can cause close fissures in the area near the welds through which water leakage can occur inside the container.
If we take into account the fact that the metal used for the manufacture of containers has characteristics to slow down o