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There are now standards for the filling materials of fire doors. It is not possible to add materials casually. There are also certain standards. That is, the reinforcement of the fire protection effect also enhances the firmness of the fire protection. Does the fire door guard against theft? Take the current fire door as an example, the anti-theft door is not closed, so let's talk about what the filling of Class B fire door is and the standard.
This standard requires several indicators such as the geometric size, appearance quality, compressive and flexural strength, moisture content, water absorption, formaldehyde content, and uniform temperature burning performance of the filling material.
1. The inspection of appearance size is mainly steel ruler, tape measure and vernier caliper. This is a regular thing, easy to handle.
2. Compressive and flexural strength requires a compressive and flexural testing machine, electric heating blast drying oven, balance and dryer.
3. Density and moisture content require electric heating blast drying oven, balance, steel ruler, etc.
4. There are many requirements for the detection of formaldehyde content. The instruments include: analytical balances, spectrophotometers, electric blast drying ovens, electronic balances, and some consumables such as glass products and reagents. This formaldehyde test method is done in accordance with GB/T17657-1999.
Fireproof board is a decorative board made by autoclave technology using siliceous material or calcareous material as the main raw material, mixed with a certain proportion of fiber materials, lightweight aggregates, adhesives and chemical additives. It is a new type of material that is used more and more at present, and its use is not only because of fire prevention factors. The construction of fireproof board has higher requirements for pasting glue, and the price of better quality fireproof board is more expensive than decorative panel. The thickness of the fireproof board is generally 0.8mm, 1mm and 1.2mm.
The fireproof board is made of metal plates (aluminum, stainless steel, colored steel, titanium zinc, titanium, copper, etc.) as the panel, and the core material modified by halogen-free flame-retardant inorganic substance is used as the core layer. It is a fireproof sandwich panel. According to GB8624-2006, it is divided into two combustion performance levels A2 and B.
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