Placement requirements, maintenance methods and precautions of Henan fire door at ordinary times Maintenance methods and precautions of fire door at ordinary times. high quality fire-proof door When the hinge makes abnormal noise, add a few drops of lubricating oil to the hinge shaft. It is strictly prohibited to store together with acid-base substances. The room should be clean, dry and ventilated. 2. Do not pull off the fireproof seal, or it will lose its function in case of fire. Henan fireproof doors and windows cannot be left open for a long time, which will damage the door closer and make it lose its function. Check every three months to ensure that the fixing screws of hinges, door locks and door closers are not loose. 3. It is not allowed to hit the door body with sharp tools and heavy objects to prevent the door body from being sunken, scratched and peeling off the paint film. To prevent the fire door from being hit abnormally, it is not advisable to use excessive force or open the door at an excessive angle. The concealed bolt of the upper and lower fire door shall not protrude when the door is open, so as not to collide with the door frame, deform or fall off and lose its function. 4. Henan fireproof doors and windows shall be protected from outdoor sunshine for a long time to prevent the fireproof door from being heated. fire-proof door Manufacturer It shall be stored in the room with backup frame and separated from the heat source to avoid thermal deformation. 5. Keep the indoor air circulation and prevent the fire door from frequent damp. After splashing with water, wipe it with dry cloth to avoid local expansion. The fire door closer must be replaced in case of oil leakage.

The advantages and problems in the development of fire doors in Henan Province Fire doors are more popular in recent years, so how much do you know about the maintenance, advantages and development of fire doors? The following section will provide you with a comprehensive knowledge of fire doors, so that you can better understand fire doors. high quality fire-proof door Fireproof door is a kind of movable fireproof partition. In addition to the function of ordinary door, it, together with the frame, can meet the requirements of fire resistance stability and integrity within a certain period of time. It has special functions of fire prevention, smoke separation and high temperature blocking. In case of fire, it should have self closing and signal feedback functions. （1） Advantages of fire doors In case of fire, Henan fire doors and windows can be automatically closed through the linkage control system when they are in the open shoulder state, effectively ensuring the reliable closing of fire door maintenance in the fire, so as to achieve its due role in smoke separation and fire resistance. There is no big difference between the maintenance of fire doors and the maintenance of normally closed fire doors in terms of production and basic configuration, but the door closers for the maintenance of normally closed fire doors are replaced with automatic fire release devices that are linked with the automatic fire alarm. At the same time, they can be installed with the control box produced by the manufacturer. Linkage is achieved by installing smoke detectors and smoke detectors on the left and right sides of the maintenance of fire doors, When the smoke detector detects the smoke signal and sends it to the host computer of the automatic fire alarm linkage control system, the linkage control system transmits 24v power to the fire door maintenance releaser to automatically close the fire door for maintenance. The closing or opening status of the fire door maintenance has signals fed back to the alarm host computer or control box. fire-proof door Manufacturer The automatic release device for fire door maintenance developed by Dong Shicong of Chengdu Huili University Research Institute can open the fire door maintenance for 0-180 degrees freely and close it smoothly, completely changing the disadvantage of inconvenient use of the normally closed fire door maintenance closer due to its large opening angle of 90 degrees, and once the fire door is closed for maintenance, the release device will not be reset, It has become a movable fire door maintenance that automatically opens, closes, opens and closes, overcoming the contradiction that normally closed fire doors must be manually closed or cannot be closed after being pushed to a certain limit (greater than 90 degrees) for maintenance; The lesson of blood proves that people who escape from a fire simply cannot close the opened fire door for maintenance due to panic and eagerness to escape.

Henan fire door selection method Fire door is particularly important as a family fire protection, but when you buy low-quality fire door, the fire door is no longer fireproof, what should you do? The fire department of our city investigated and destroyed a batch of inferior fire doors with honeycomb paper instead of fireproof filler materials. Here, the firefighters introduced some tips on how to select and purchase high-quality fire doors. According to the regulations, steel and wood fire doors can be divided into Class A, Class B and Class C according to the fire resistance limit. The fire resistance limit requirements are 90 minutes, 60 minutes and 30 minutes respectively. In addition, the wood used to make wood fire doors needs drying and flame retardant treatment, and the hardware used must also be fire hardware. high quality fire-proof door There are five ways to choose high-quality fire doors: one is to check the appearance, high-quality steel fire doors are firmly welded, and the welding spots are evenly distributed; The external surface shall be sprayed flat and smooth; There shall be product mark, quality inspection mark and quality certification (approval) mark at the specified position. fire-proof door Manufacturer The qualified wooden fireproof door shall be intact without damage, and the surface shall be clean without plane marks, burrs and hammer marks; Corner cutting and butt joint shall be tight and flat. The second way is to check the figures. The overall dimensions of qualified products should be less than or equal to the overall dimensions in the sample description, the door leaf thickness should be greater than or equal to the door leaf thickness in the sample description, the door frame sidewall width should be greater than or equal to the door frame sidewall width in the sample description, and the overall dimensions of fire-resistant glass should be less than or equal to the overall dimensions of fire-resistant glass in the sample description, The thickness of fireproof glass shall be equal to or greater than the thickness of fireproof glass in the sample description.

What is the reason why the products of Henan fire shutter manufacturers are popular? Have you heard of fire shutter doors? This is a popular product in warehouses, street shops, garages and other places. It is also the main product of fire shutter manufacturers. high quality fire-proof door In fact, there are many kinds of rolling shutter doors, but why are fire resistant rolling shutter doors so popular? Henan fire shutter door From the fire shutter door itself, we can see that its design can be accurate to mm. The curtain has 36 colors to choose from, which is very beautiful, durable, high toughness, and excellent corrosion resistance. The fireproof rolling shutter door manufacturer uses 6063t5 fireproof materials to process and make it outstanding in anti strike and anti scratch performance, effectively avoiding malicious intrusion, and making the protection more effective. The manufacturer also uses the electrostatic powder spraying process to treat the exterior, enhance its corrosion resistance, anti-aging, weather resistance, and extend its service life. fire-proof door Manufacturer The friends who have used ordinary rolling shutter doors in Henan know that rolling shutter doors are made of metal, which will produce noise during operation and affect people's life and work. However, the rolling shutter door produced by the fire shutter door manufacturer uses a silent operation system to reduce noise and reduce the impact on life. Its anti-theft function is more prominent, and its reliable balance system and powerful driving device also make it more lightweight. These advantages are the reasons why it is popular.