Standard introduction of fire door core board

There are often many accidents in society, especially fire accidents. Once they happen, the loss will be huge and life-threatening. Therefore, it is very important to prevent the occurrence of accidents and reduce losses after the accident to protect people’s lives. The more common protection measures It’s our door. Now many people are fire doors. Fire doors not only have the function of isolation, but also fire prevention. If a fire occurs in the neighbors, with the shelter of fire doors, they may survive or be able to delay time until rescue. The fire door is related to our life and health, so its advantages and disadvantages are very important, and the filling material of the fire door plays a decisive role in the fire protection and heat insulation performance of the fire door, so the fire door core board is also a fire door project. An important part of inspection and inspection. The quality of the fire door core board has a direct relationship with our life safety, so its mandatory standard is extremely important. We will briefly introduce its production standards.

At present, there are many kinds of fire door core boards, and there is no unified standard for fire door core boards. The main fire door core boards are vermiculite fire door core boards, magnesite fire door core boards, rock wool, mineral wool and perlite fire boards, etc. All these filling materials serve for fire doors, and fire doors produced with them must meet the requirements of the national standard for fire doors GB/T12955-2008. The standard stipulates that the fire door filling material must be fireproof and heat insulating, and be non-toxic and harmless to the human body, and must be tested by a nationally recognized and authorized testing agency. ZA2 level requirements specified in T20285-2006. For different fire door core filling materials, different regulations have been made, such as magnesite fire door core board, its standard must comply with JG/T470-2015 regulations. For the vermiculite-based fireproof door core board, it meets the requirements of the standard JC/T 2341-2015 for expanded vermiculite fireproof board. Synthesizing the mainstream fire door core board material standards, summarizing the fire door core board standards are as follows:

1. The density is 240-350kg/m3.
2. The resistance strength should be ≥8MPa.
3. The thermal conductivity should be less than or equal to 0.35-0.076w/(mk).
4. The moisture content should be less than or equal to 10%; the swelling rate should be less than or equal to 0.25%.
5. The fire resistance limit should be within 0.6-2 hours; the combustion resistance temperature is 1300 ℃; and its sound absorption coefficient is between 0.3-0.8.

The quality of the fire door core board is closely related to our lives, so the production process must be manufactured in strict accordance with its standards, and the quality must meet or exceed the standards. In addition to fireproofing, the fireproof door core board also has a good sound insulation effect, and is resistant to corrosion and heat preservation and heat insulation. It is generally produced with natural and environmentally friendly materials, and has the advantages of non-toxic, non-radioactive, beautiful, economical, convenient construction, etc., in line with the modern concept of green health. Because of its many functions and a wide range of applications, many public places, high-end residences, etc. will use fire doors made of fire door core panels. May more and better fire door core filling materials be developed and produced to protect our health and safety.