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 resistant rolling shutter 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 resistant rolling shutter door direct deal 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 resistant rolling shutter 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 resistant rolling shutter door direct deal 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.

Henan fire door development prospects 1. The fire door industry is also an emerging industry, with huge market capacity and market potential. 2. Due to the high qualification threshold of fire doors, there are not many manufacturers that can really enter the fire door industry, but also Grade C fire doors Grade C fire doors Henan fire doors. According to incomplete statistics, there are more than 1000 fire door enterprises. high quality Fire resistant rolling shutter door This does not include those family workshop type processing units. The products produced by these processing units are of different grades, with prices ranging from hundreds to thousands of yuan. 3. The market pattern in the industry has not been formed yet. There are few large enterprises and brands, and there is no leading brand. The research, development and production of fire door products have played a positive role in ensuring the safety of people's lives and property. China's fire door market started late, but developed rapidly. In recent years, some European and American enterprises have actively participated in the competition in the Chinese fire door market, especially European enterprises, which are trying to make European fire doors occupy more of the Chinese market. Fire resistant rolling shutter door direct deal In the face of competitors, we must face up to the current situation. On the one hand, we should learn from our competitors modestly, and on the other hand, we should strive to enhance our own strength. Fire door manufacturers in China are facing a huge challenge. Who can seize the opportunity in this challenge will become a winner in the market.

The installation and installation of Henan fireproof rolling shutter door requires that the fireproof rolling shutter door is widely used in shopping malls, shopping malls and underground garages, but the specific installation steps should not mention laymen. high quality Fire resistant rolling shutter door Even the fireproof rolling shutter door can not be explained in detail. The following is a detailed description of the installation of Henan fireproof rolling shutter door step by step: step 1: install the guide rail. 1. Determine the installation position of the guide rail on both sides of the fireproof rolling shutter door, set out the guide rail reference line with hammer line, and set out the cross line of the fixing bolt of the guide rail connector. The guide rail is not less than 75cm above the ceiling. 2. Punch the holes for fixing expansion bolts of connectors on the wall column with a percussion drill. The spacing between connectors shall not be more than 600mm, and both ends shall be 100mm away from the guide rail opening. Fix several connecting pieces up and down first, stick the guide rail, correct its verticality and spot weld it, and then repeat the verticality of the guide rail after fixing the guide rail. The verticality of each meter shall not exceed 5mm, and the verticality of the whole length shall not exceed 20mm. The depth of the composite curtain embedded in the guide rail (see GBl4102-2005). 3. Install the rest of the connecting pieces. Spot welding shall be adopted between the connecting piece and the guide rail. The spot welding points between each connecting piece and a guide rail shall not be less than 5 points, and the width of the spot welding shall not be less than 5mm. The welding point shall never be penetrated. Fire resistant rolling shutter door direct deal Stainless steel welding rod shall be used when stainless steel guide rail is used.

Henan fireproof door installation method The fireproof door is divided into steel fireproof door and wooden fireproof door according to the material. There are some differences in the installation method of the two fireproof doors. high quality Fire resistant rolling shutter door The fire rating is slightly different. You must pay attention to the details when installing. First of all, when installing the wooden fireproof door, the size of the door frame should be 20mm smaller than the opening, and the lower foot of the door frame should be buried 20mm below the ground. The door frame should be firmly fixed with the wall, and perpendicular to the corner. The vertical frame and bracing frame shall be straight and at the same angle to avoid planing and sawing. There shall be no less than 3 fixed points on both sides of the door frame, and the spacing shall not be greater than 800mm. Secondly, during the installation of the steel fire door, considering the bending deformation of the door frame, it is necessary to support the door frame with wooden braces in the width direction of the door frame. The lower foot of the door frame is buried 20 mm below the ground, and then the door frame is welded with the embedded parts on the wall. Then make a hole in the wall at the upper corner of the door frame, and pour concrete of cement, sand and expanded perlite (1:2:5), which can be used after the concrete has set. Fire resistant rolling shutter door direct deal Requirements for airtightness of fire doors: there are clear requirements for the size of the gap at each overlap of fire doors: for steel fire doors, the overlap between the leaf and the door frame shall not be less than 10mm, and the gap between the leaf and the door frame on both sides shall not be more than 4mm. The gap after the installation of the fire door cannot be too large, otherwise the airtightness of the fire door is difficult to guarantee, and it is difficult to reflect its role in restraining fire and smoke spread under fire conditions.

Product classification of Henan fire door manufacturers. Fire door manufacturers combine the advantages of traditional door furniture and carry out innovative development of new door furniture. high quality Fire resistant rolling shutter door The steel fireproof door has all the properties of the traditional anti-theft door and can be used in home life. The door furniture is made of superior metal composite materials, and is mainly made of aluminum alloy and stainless steel, so it has strong hardness and solves the problem of rust. It can produce chemical reaction at high temperature, generate oxygen and control the ignition point. The steel fireproof door can play a good role in fire prevention and heat insulation, which is also a performance that other metal doors do not have. The metal itself has good thermal conductivity. The scientific and technological achievements adopted by the steel fireproof door can withstand impact without deformation, which can bring greater safety to the home life. At the same time, it can also be used as the door of the factory, which can not only protect the product from fire but also prevent the product from being stolen. Fire resistant rolling shutter door direct deal Fireproof door manufacturers also launched wooden fireproof doors, which are mainly used indoors. The exquisite carved patterns add to life. It is a new breakthrough in the series of fireproof door products. It is processed from non combustible wood materials, which can play a role in fire prevention; The steel fire door is the original fire door product, which is mainly used in factories and their gates. The steel door made of superior aluminum alloy changes the thermal conductivity of metal, which can play a good role in fire prevention. The quality of the door made of all metal is good; The steel wood fire door is the perfect combination of steel and solid wood. It is light in quality and elegant in appearance. It has played a good role in many fields of life. It can be said that it is a desirable product in the fire door series.