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2022
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09
The structural composition of fire doors in Guangxi.
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Do you know what the structural composition of fire doors in Guangxi is? The definition of a fire door in Guangxi consists of components such as the door frame, door leaf, fire-rated hinges, and fire-rated locks—these are all hardware products used in fire-resistant building applications. The hinges are positioned vertically to the ground, with their shafts capable of rotating in one direction—either clockwise or counterclockwise—to open or close the fire door. This definition can be broken down further: a fire door comprises a door frame, a door leaf, fire-rated hinges, a fire-rated lock, and other fire-rated hardware components.
You know. Guangxi fire doors What is its structural composition?
Guangxi fire doors The definition refers to enterprises specializing in fire-resistant architectural hardware products and components, including door frames, door leaves, fire-rated active hinges, and fire-rated locks. The hinges are positioned vertically relative to the ground, with their shafts capable of rotating in a single direction—either clockwise or counterclockwise—to open or close fire doors. This definition can be broken down as follows: a fire door consists of a door frame, a door leaf, fire-rated hinges, a fire-rated lock, and fire-rated hardware accessories. For wooden fire doors, the door frame and door leaf are constructed from fire-resistant wood or fire-resistant wood products. If the door contains filling materials, these materials must be non-toxic and harmless to humans, serving as fire-retardant thermal insulation materials. Furthermore, such fire doors must incorporate fire-rated hardware accessories that meet China’s specified fire safety performance standards.
This decomposition leads to the conclusion that, Guangxi fire doors Based on the premise of opening a fire-rated door, the materials must possess a certain degree of flame-retardant performance, and the interior must be filled with thermal insulation material. Take the Jiuan Wood Fire-Rated Door as an example: this wood fire-rated door can be disassembled into fan-shaped sections. Its structure features double-sided decorative panels available in colors such as white maple and mahogany. The door’s four sides are constructed with a flame-retardant wooden frame, which is filled with high-strength perlite and connected using seamless perlite blocks. The surface of the door frame is covered with 6mm fire-resistant boards. The sides of the door are edged with leather trim. The structural design of Guangxi fire-rated doors ensures both a smooth door surface and the integrity of its fire resistance.
Class B fire doors have a fire-resistance rating of 0.9 hours. They are all-steel doors with a small glass window set into the door. The glass is either 5 mm-thick wired glass or fire-resistant glass. Class B Guangxi fire doors are primarily designed to prevent the spread of fire through openings. Wood-based fire doors, while not as common, can also achieve Class B fire-rating performance. Class C fire doors have a fire-resistance rating of 0.6 hours. They are solid steel doors equipped with a small glass window. The glass used is 5 mm-thick wired glass. Most wood-based fire doors available worldwide fall into this category.
According to the different materials used, fire doors are classified into two types: wooden fire doors and steel fire doors. Wooden fire doors are made by coating the surface of wooden doors with fire-retardant paint or by veneering them with decorative fire-resistant adhesive panels, thereby meeting fire protection requirements. However, their fire resistance performance is slightly inferior. Steel fire doors, on the other hand, are typically fabricated from ordinary steel plates and feature a core layer filled with fire-resistant materials such as rock wool, ensuring they meet the fire safety standards required for building construction.
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