The main reasons for the fire resistance of coated steel sheets are as follows:
1. Film layer material: The surface of the film-coated steel plate is usually covered with a layer of fireproof film. This kind of film material has good fireproof performance and can form a protective layer at high temperature to prevent the burning and spreading of flame.
2. Steel plate base material: The base material of the coated steel plate is made of high-quality steel, which has a high melting point and high temperature resistance. In the event of a fire, the base material of the coated steel plate can maintain structural integrity for a long time, prolonging the propagation time and scope of the flame.
3. Heat insulation performance: the coated steel plate also has good heat insulation performance. The film layer material can slow down the heat conduction of the flame to the base material and prevent the flame from spreading to the inside through the steel plate. In addition, the film layer can also reflect part of the heat radiation, reducing the thermal impact of the fire on the interior of the building.
Generally speaking, through the combination of the surface film layer and the steel base material, as well as its heat insulation performance, the coated steel plate can provide better fire performance. It is widely used in construction, transportation and other fields, improving the fire safety level of buildings and facilities.
