A brief talk on the problems encountered in the fire acceptance of Henan fire rolling shutter door 1. The curtain plate coating falls off and rusts, and the curtain plate has obvious pressure pits, concave convex, and penetrating holes. supply Steel fire resistance rolling shutter door The rolling shutter is a complete fire protection product. If the shutter has problems, it will directly affect the fire resistance limit index of the rolling shutter. 2. The guide rail is deformed and the curtain board is stuck or falls unevenly. The fireproof rolling shutter door generally moves along the guide rail. If the guide rail is twisted or broken, the rolling shutter door will not be able to move to the specified position, which will not achieve the effect of fire separation. 3. On the roller shutter, the lower limit fails or the limit line is wrongly connected. Steel fire resistance rolling shutter door Price This often happens on the fire roller shutter of the atrium. Because the fire roller shutter of the atrium is sometimes installed outside the walkway of the upper floor, there is no floor under the roller shutter to close it, and a large gap is leaked, so the fire separation of the upper and lower floors cannot be reached.
How to choose Henan fire door with good quality? Only the brand quality is excellent, can the fire door material reach a high strength and durable scale, or reach a high strength and airtight condition at the same time of fire prevention characteristics, or reach a difficult deformation quality under tropical burns, so as to eliminate the need for fire prevention. supply Steel fire resistance rolling shutter door In terms of material selection, it is also advisable to adopt wood and steel materials, and fire door body made of pure materials. The price of different materials is different, and it is possible to reach the standard with both fire prevention talents. Therefore, only manufacturers with strong brand advantages can reach a comfortable level in terms of quality conditions of fire doors, and may adopt high-quality and inexpensive fire doors. Fire doors are divided into wooden fire doors and steel fire doors in shopping malls. Some consumers have a misunderstanding that the fire resistance effect of wooden fire doors will be poor rather than steel. It is necessary to change this poor idea as soon as possible. Only wooden fire doors can pass good fire resistance treatment. Steel fire resistance rolling shutter door Price Its flame retardant effect will be no less than that of steel fire doors. The appearance of wooden fire doors is more elegant than that of steel doors. The assembly is convenient, not to mention the existing flame retardant effect and the elegant use of decorations.
What is the difference between the normally open and normally closed fire doors of Henan fire doors? The differences between the normally open and normally closed fire doors are as follows: 1. Different meanings. The normally open fire doors are usually open, and they are automatically closed by the control system only in case of fire. It is generally used in the passage or corridor of public places. supply Steel fire resistance rolling shutter door Normally closed fire doors are closed under normal conditions and in case of fire, and need to be pushed open when someone walks around, so as to prevent smoke and fire and prevent the spread of fire. 2. The price is different, and the price of the normally open fire door is higher, and the system is strong. The price of normally closed fire doors is relatively low. Henan fireproof doors and windows 3. The composition is different. The normally open fireproof door consists of door leaf, door frame, door closer, sealing strip, release switch and other parts. The normally closed fireproof door is equipped with sequencer in addition to the above parts. 4. The control mode is different. The normally open fire door is controlled by the fire door release switch. The normally closed fire door does not need to be set with electric automatic control. It is mainly closed by the door closer and sequencer, that is, mechanical. Precautions for Henan fire door fire door 1. The fire door shall be installed according to the type of fire door used, and the appropriate installation method shall be adopted. 2. The door frame of the fire door can be fixed with the wall by expansion bolts, or iron parts can be embedded at the opening when building the wall, and welded firmly with the door frame connector during installation. 3. No matter what kind of connection mode is used between the door frame and the wall, there should be no less than 3 anchor points on each side, and they should be firmly connected. Henan fireproof doors and windows 4. When installing the fireproof door, it should be aligned and hoisted. After the size is appropriate, it should be temporarily fixed, corrected and adjusted, and then it can be connected and anchored. 5. The sliding door shall be flexible after installation; The side hung door is easy to open and tight and firm to close. Steel fire resistance rolling shutter door Price Henan fireproof doors and windows 6. Door closers must be installed on fireproof doors, and sequencers must be installed on opposite doors. 7. The handle, fire lock and other hardware accessories on the fire door must be complete. 8. It is required that the clearance from the ground plane shall not be greater than 5mm.
Relevant requirements for fire protection of the door of Henan Refuge Room What kind of products are qualified when the door of Henan Refuge Room passes the fire protection? Here are some examples: 1. Filling materials: the filling materials must meet the requirements of combustion performance A1 specified in GB8624-2006. At the same time, it meets the requirements of smoke toxicity hazard classification ZA2 specified in GB/T20285-2006. 2. Material thickness: door leaf material shall be no less than 0.8mm, door panel material shall be no less than 0.8mm, door frame plate shall be no less than 1.2mm, hinge plate shall be no less than 3.0mm, reinforcement without screw holes shall be no less than 1.2mm, and reinforcement with screw holes shall be no less than 3.00mm. supply Steel fire resistance rolling shutter door The door of Henan refuge room 3. The adhesive shall meet the requirements of smoke toxicity hazard classification ZA2 specified in GB/T20285-2006. 4. Dimensional deviation: the height of the door leaf shall not exceed 2mm, the width of the door leaf shall not exceed 2mm, the thickness of the door leaf shall be between - 1mm and+2mm, the height of the clipping opening in the door frame shall not exceed 3mm, the width of the clipping opening in the door frame shall not exceed 2mm, and the width of the side wall of the door frame shall not exceed 2mm. 5. Geometric tolerance: the length difference between the two diagonals of the door leaf shall be less than or equal to 3mm, The distortion of the door leaf shall be less than or equal to 5mm, the curvature of the door leaf in the width direction shall be less than 2%, the curvature of the door leaf in the height direction shall be less than 2%, and the length difference between the two diagonals of the inner cutting opening shall be less than or equal to 3mm. 6. Fit tolerance: the overlap size between Manshan and the door frame is less than or equal to 12mm, the fit clearance between the door leaf and the door frame at the hinge side shall not be greater than the size tolerance specified in the design drawing, and the fit clearance between the door leaf and the door frame at the lock side shall not be greater than the size tolerance specified in the design drawing. Steel fire resistance rolling shutter door Price The clearance between the door leaf and the upper frame shall be less than or equal to 3mm, the clearance between the double leaf and multi leaf door leaves shall be less than or equal to 3mm, the clearance between the door leaf and the lower frame or the ground shall be less than or equal to 9mm, the clearance between the binding surface of the door leaf and the side of the door frame with hinges shall be less than or equal to 3mm, the clearance between the binding surface of the door leaf and the side of the door frame with locks shall be less than or equal to 3mm, and the clearance between the binding surface of the door leaf and the upper frame of the door frame shall be less than or equal to 3mm, The plane height difference between the door frame and the door leaf is less than or equal to 1mm.
