Fire doors, I believe we all know it, in many of our public places can be seen everywhere in it, steel fire doors are our most commonly used products, that steel fire door is good or not? Next we will come together to understand it! What is a steel fire door Steel fire doors are made of steel materials for the manufacture of door frames, door leaf skeletons and door leaf panels. If the door leaf is filled with material, it is filled with non-toxic and harmless fire-proof and heat-insulating materials, and is equipped with fire-resistant hardware fittings with a certain degree of fire resistance. Performance of the door. Steel Fire Door Features Product appearance The facade has a variety of different styles of stereotypes. The unique design and smooth lines highlight the overall aesthetic appearance of the product and show its dignified and stylish features. The interior of the door leaf is filled with a new type of environmentally-friendly fire-retardant and heat-insulating material, which is shaped by professional equipment on the concave-convex part of the facade, and the environmental-friendly adhesive is pressed and molded. In the joints of the door leaf and the door frame and the perimeter of the fireproof glass, fireproof sealing treatment is performed to greatly enhance the fireproof performance. Specifications: 2100×2300mm, 1500×2300mm, 1000×2300mm. According to the needs, special-shaped fire doors that exceed the above specifications for use in power distribution rooms, factories, and other buildings can be manufactured. Steel fire door installation precautions In the installation process of steel fire doors, taking into account the bending deformation of the door frame, it is necessary to support them in the direction of the width of the door frame. The bottom of the door frame is buried 20mm below the ground, and the door frame is welded to the embedded parts on the wall. Then open the hole in the upper corner of the door frame and inject concrete, sand, and expanded perlite (1:2:5) into the concrete so that the concrete can be used after solidification. Steel fire door closure requirements For steel fire doors, the overlap between the fan and the door frame shall not be less than 10mm, and the gap between the fan and the door frame shall not be greater than 4mm. After the installation of the fire door is completed, the gap cannot be too large. Otherwise, the airtightness of the fire door cannot be guaranteed, and it is difficult to reflect the fire suppression and smoke propagation under fire conditions. Regarding the steel fire doors , I will introduce them to you in general. I hope to help you, and I would like to look forward to more information on this site. Doors and windows Flat Webbing Sling,Flat Sling,Flat Lifting Slings,Flat Woven Webbing Sling Jiangsu Zhongyi Work Rigging Co., Ltd. , https://www.zy-rigging.com
