The Principle of Fire Doors

What is the principle behind fire-resistant doors? As fire safety knowledge becomes more widespread, a variety of fire-resistant doors, curtains, and home furnishings are popping up. So, how are these products processed to achieve fire resistance?

The principle of fire doors is quite simple; they primarily utilize inorganic non-combustible materials, or partially incorporate steel, flame-retardant wood, or flame-retardant wood products to construct the door frame, door leaf skeleton, and door leaf panel. If there is filling material inside the door leaf, it is filled with fire-resistant and insulating materials that are harmless to humans. These are complemented by fire-resistant hardware components, creating a door with certain fire resistance properties.

However, it's important to note that fire doors are not actually fireproof. They merely serve as a temporary barrier against the spread of fire. The actual耐火 duration depends on the fire-resistant properties of the door material and its filling.