The main reasons why coated steel plates have fire resistance are as follows:
1. Material selection: Coated steel plates usually consist of two main parts, namely the metal substrate and the coating layer. Metal substrates usually use steel or other metallic materials that have higher melting points at high temperatures, making them resistant to flames and high temperatures.
2. Coating layer: The surface of the coated steel plate is usually covered with one or more layers of special coating materials, which have flame retardant properties. When these materials are exposed to fire, they slow the spread of fire by releasing gases or chemicals that help stop the spread of fire.
3. Thermal conductivity: The metal substrate has high thermal conductivity, which means that it can quickly disperse heat to the entire surface, preventing the flame from being concentrated in a small area. This helps reduce the intensity of the fire and slow the spread of flames.
4. Structural stability: The metal base material of coated steel plates usually maintains good structural stability under high temperatures and is not easy to deform or lose strength. This is important to ensure that a building or structure remains stable during a fire so that personnel can be evacuated or firefighting efforts can be carried out.
5. Fire-retardant coating: Coated steel plates can also be coated with additional fire-retardant coatings to enhance their fire-retardant properties. These coatings are typically fire-resistant materials that provide additional protection in the event of a fire.
In summary, coated steel panels are fire-resistant because their material combination and structural design are designed to withstand flames and high temperatures, slowing the spread of fire, thereby providing fire protection for buildings and structures. This has led to the widespread use of coated steel panels in buildings, ships, train carriages and other applications requiring fire-resistant properties.
