As an indispensable fire safety facility in modern buildings, the composition method of fire doors is crucial and directly related to their performance and effect in fire.
The composition of fire doors is first inseparable from a solid door frame. The door frame is the supporting structure of the fire door, usually made of refractory materials such as steel and aluminum alloy. These materials not only have good fire resistance, but also ensure that the door frame is not easily deformed at high temperatures, thereby keeping the door leaf stable and closed. The installation position and size of the door frame must strictly meet the design requirements to ensure a perfect fit with the door leaf.
The door leaf is the main part of the fire door and bears the heavy responsibility of blocking the spread of fire. It is usually composed of fireproof panels and filling materials, such as inorganic glass, fireproof rock wool, etc., which have excellent fire resistance. The design of the door leaf must also ensure that the switch is flexible and smooth so that it can be quickly closed in an emergency.
In addition to the door frame and door leaf, fire doors also include many important hardware accessories. Fireproof locks are the key, which can quickly close the door leaf when a fire occurs to prevent the fire from spreading. In addition, hardware accessories such as hinges, door handles, hinges, etc. must also have sufficient fireproof and corrosion resistance to ensure the normal use of fire doors.
Fireproof sealing strips are also an important part of fire doors. It is used to seal between the door frame and the door leaf to prevent the fire from spreading through the gap. The sealing strip should be made of high temperature resistant, aging resistant, and non-flammable materials to ensure its long-term effective sealing effect.
In addition, fireproof glass is also an important element in some fireproof doors. It not only provides a good line of sight, but also maintains a certain fire resistance in the fire and reduces the spread of smoke and flames.
In summary, the composition method of fireproof doors covers multiple parts such as door frames, door leaves, hardware accessories, sealing strips, and glass. These parts work together to ensure that fireproof doors can play the greatest barrier role in fires and protect the lives and property of people.