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First, what is a flame retardant board?
Flame-retardant board (also known as flame-retardant board, fire-retardant plywood), flame-retardant plywood is rotated from the log into wood chips or wood planed into small wooden squares, the wood chips after the flame-retardant treatment and then glued together three Layers or layers of plywood, usually odd-numbered wood chips, and the adjacent layers of wood fibers from the vertical direction of the glue. Fire-retardant material boards produced from wood as the main raw material can substantially overcome the defects of wood due to its reasonable structure and fine processing of the production process, thereby greatly improving and improving the physical and mechanical properties of the wood, in addition to overcoming the common The disadvantage of plywood flammability has effectively improved the flame retardancy of plywood. Combustion board This board has five characteristics: flame retardancy, smoke suppression, anti-corrosion, insect resistance and stability. It can be said to have strong practicality.
Second, the flame retardant board fire rating introduction First of all we have to make it clear that the flame retardant board fire rating can be divided into 4 levels. At present, the flame retardant board grades on the market mainly include: A1, A2, B, C four grades, according to GB8624-1997 "comprehensive combustion performance of building materials and products", is divided into: Class A non-combustible materials: Class A homogeneous material And Class A composite (sandwich) materials; Class B combustible materials: B1 material and B2 material and B3 material. According to GB8624-2006 "Building materials and products combustion performance rating" is divided into: A1 level, A2 level, B level, C level, D level, E level, F level. The standard Class B1 flame retardant plate in 1997 can correspond to the standard 2006 Grade B and C flame retardant plates. However, the most common fire-retardant panels in the sheet metal market basically belong to the Class B fire rating. The wood used for the fire retardant board is a fire-retardant wood, the flame-retardant phenolic plywood, the flame-retardant medium density fiberboard, and the flame-retardant plywood all refer to the fire-retardant board. .
GB 8624-2006 Test requirements for Class B and C combustion performance of building products (other than floor covering materials):
1. The flammability test (GB/T 8626), in the case of flame bombardment of the specimen for 30 s (and if necessary flame bombardment of the edge of the specimen, see 6.3), the vertical distance between the flame propagation and the ignition point within 60 s does not exceed ( Class C and B are the same).
2. The monomer burning test (GB/T 20284) evaluates the effect of the product itself on the fire in a fire scene where there is a single source of combustion near the simulated product in the corner of the room. There are three specific indicators, namely: A. Flame lateral spread (LFS) shall not reach the edge of the sample (C, B with the same). B. FIGRA 0.4MJ total heat release. The threshold value for combustion is 0.4MJ and the growth rate of the index C is ≤ 250 W/S, and B is ≤ 120 W/S. C.THR600S (total heat release at 600 s) Class C ≤ 15 MJ, Class B ≤ 7.5 MJ.
Third, why the use of fire-retardant panels "Fire Protection Law of the People's Republic of China" is the highest fire safety regulations, there is a mandatory delineation of fire safety in public places, public places do not use flame-retardant fire protection materials decoration approval. The use of flame-retardant panels can suppress open fire at the fire site, reduce heat, and provide enough time for people to escape. The General Administration of Quality Supervision, Inspection and Quarantine and the Standardization Committee also issued the "Burning Performance Requirements and Labels for Public Places for Flame Retardant Products and Components" (GB 20286-2006) (Implementation). The public places were clearly defined and fire-retardant articles were proposed. With the combustion performance indicators and must have flame retardant logo.
1. High-rise buildings are not easily extinguished by fire.
With the progress of the times, economic development and the expansion of the city, more and more high-rise buildings have risen. With it, fire safety problems cannot be ignored. The high-rise buildings themselves are like towering chimneys, and the fires spread particularly quickly. In addition, the development of mechanical ladders cannot catch up with the development of high-level buildings. Over 300 meters of high-rise buildings are common, but the ladders cannot be so high, which hinders the fire fighting and rescue operations of fire fighters. High-rise buildings in the industry are called "disaster amplifiers." In the event of a fire, the loss is particularly great.
2, flame retardant materials to prevent the spread of fire, to win rescue time.
Flame-retardant materials are not completely incombustible, but they are not easy to burn, can withstand fire for tens of minutes or even a few hours, slow down the spread of fire, and earn valuable rescue time for firefighters. After the CCTV North Annex Building and the Shenyang Dynasty Wanxin Fire insulation layer were lit by fireworks, the high-rise insulation materials were not only flame-retardant, but also melted to produce droplets. The high-level droplets burned down to the low-level non-flame-retardant insulation materials. The speed at which the fire spreads was "very fast" and caused huge losses.
3, flame retardant materials reduce toxic smoke, reduce casualties.
In the fire, due to insufficient combustion, a large amount of toxic smoke will be produced. Toxic smoke is one of the most important causes of death. The current millennium boat flame retardant board can simultaneously achieve the effect of flame retardant, smoke suppression and gas poisoning, and does not produce extremely toxic or unusual combustion products. The fire safety of fire-retardant materials is higher in many respects than similar materials that are not fire-retardant. When the former is burned, the amount of smoke and toxic gases generated is also lower than the latter.
The flame retardant, smoke suppression, and smoke toxicity of the well-known Millennium Boat Flame Retardant plate meet the requirements of Class B flame-retardant materials for the national GB 8624-2012 “Combustion property classification of building materials and productsâ€. At the same time, it conforms to the national GB 20286-2006 "Standard Requirements and Labeling of Flame Retardant Products and Components for Public Places" and maintains the excellent physical properties, processing performance and decorative functions of traditional wood-based panels. It is widely used in hotels and hotels. Convention and Exhibition Center, sports center, library, transportation passenger transport center, leisure and entertainment venues, shopping malls, medical institutions, office buildings and other public construction and decoration projects, high-end residential construction and renovation projects and high-end furniture manufacturing projects
Guardrail --- This refers to the "guardrail" for industrial use. Fences are mainly used for the protection and protection of personal safety and equipment in residential, highway, commercial areas, public places and other occasions. Guardrails are everywhere in our lives. Depending on the height, the price per fence length will vary.
The guardrail is usually made of steel, such as stainless steel, round steel pipe, square steel pipe or profiled steel plate, and iron wire. Surface treatment process: fully automatic electrostatic powder spraying (that is, plastic spraying) or painting. In recent years, plug-in, assembled guardrails made of aluminum alloy have also become more popular.
The posts of the guardrail are fixed to the ground by expansion bolts. It is usually installed on two sides of the logistics channel, the periphery of production equipment, the corners of buildings, the sides of doors and the edges of cargo tables, etc.
Effectively reduce the damage to equipment and facilities caused by accidental impact when the transportation equipment is shuttled.
Fence materials are: aluminum alloy, martensitic (nodular cast iron), carbon steel (sprayed or galvanized), stainless steel, plastic steel, zinc steel, PVC and other metal fences.
In addition, it also protects the logistics handling equipment itself. (Such as the protective fence on the edge of the loading platform to prevent the accidental fall of the forklift)
What is a flame retardant board and why do I need to use a flame retardant board?
Flame retardant board, as the name implies, is a kind of board that is more flammable. In fact, some people still know more about flame retardant plates, but most people do not have enough knowledge of flame retardant plates. The use of fire retardant board in our life is very extensive. Many people only know that the fire retardant board is mainly used in the partition of the commercial square. In the past, the use of fire retardant board was 90 percent. The scope is limited to commercial real estate use, but now the scope of use is very extensive, and interior decoration is no exception. The following millennium boat plate Xiaobian for everyone to introduce the relevant knowledge: