Fire Resistant Glass
Individual sheet fire resistant glass is a special glass playing function of fire retardant. It is made of float glass through physical and chemical procession, mainly used in curtain wall, door and window. It allows a certain of time before explosion and effectively prevent from spreading of flame and smog. As it maintains transparency state during fire, it is helpful for discovery of fire and enable people to have enough time to evacuate.
According to the structure type
There are four main types of fireproof glass according to the structure type: laminated composite fireproof glass, wired fireproof glass, insulating fireproof glass and high-strength monolithic fire-proof glass
1. Laminated composite fire glass
Sandwich flameproof glass is a kind of safety glass used in construction, is in the middle of the two layers of float glass with PVB film, under certain temperature and pressure glue into a whole, in a timely manner, the glass broken is still in an organic whole repeatedly, prevent casualties and other accidents.
Perfusion pattern also belongs to the sandwich flameproof glass, fire glass infusion cure in type thermal insulation composite fire a lot of special transparent glass in the middle of the chemicals to absorb heat from the fire and foam expansion, at the same time become opaque white, effective to prevent heat from the surface to meet fire combustion occurs as back on the surface of the fire.
In the process, the glass remains intact, forming an effective barrier for the spread and spread of the heat gas from flame, smoke and combustion.
Composite fire glass of insulation and thermal radiation prevention function can make glass back fire surface area when the fire broke out the escape or rescue workers from the high temperature heat and thermal radiation burns, at the same time in the region to prevent flammable materials and items such as wood products, carpet, etc in a certain period of time was ignited by high temperature and thermal radiation
2.Wired fireproof glass
Wired fireproof glass is a composite glass body made of metal wire and mesh in the layer of organic film or inorganic adhesive in the middle of the two layers of glass.
After joining the silk or net, it can not only improve the overall impact strength of the fireproof glass, but also can be connected with the electric heating and the security alarm system to play a variety of functions.
The only defect of the fire-proof glass is the lack of transmittance
3. Insulating fire glass
Hollow fireproof glass is the piece of glass between every two adjacent piece of glass, round with sealing isolation fixed support frame, forming a sealed space, the space with the outer seal glue sealing bridge, its one or more blocks using monolithic cesiumic potassium flameproof glass.The supporting frame is sealed with the inner surface of the glass.Support frame is empty inside structure, filling, desiccant, rectangular structure, its outer edge two right Angle 45 °, 2 mm chamfer structure, sealed space can reduce the noise, heat insulation, insulating, optimized dimensions of supporting frames and good chamfering structure makes the outer sealant has a good fixed conditions, is out of shape not easily damaged, good sealing performance, resistance to radiation performance than conventional glass, sufficient to ensure no condensation when used in a long time, no trace, no strip deformation occurs
4. Individual sheet fire resistant glass
Individual sheet fire resistant glass is the method of physical and chemical method, which is processed by the float glass.It can maintain 80 min at 1000 ℃ flame ~ 120 min don't burst, leading to more effective to prevent the spread of flame and smoke, easier to find the fire in the first place, make people have enough time to evacuate the scene, and disaster relief work.
The composite fire-resistant glass structure is shown in the picture. The composite of two or more single layer flat-bed float glass is made of expanded flame retardant cementing agent.
The fireproof principle: when the fire broke out, this glass meet soon after high temperature cracking, its fire plastic interlayer foaming expansion about 10 times in succession, form hard milk white bubble fire plastic sheet, effectively block flame and harmful gas insulated high temperature
Note:
before using fireproof glass, it is important to know the specific requirements of fire protection components made of fireproof glass, fire protection, insulation or smoke resistance, fire resistance limit, etc.
Single and compound infusion fireproof glass can not be cut with glass knife like normal plate glass, must be fixed, but the composite (dry method) fireproof glass can reach the cutting requirement;
When the fireproof glass is used to form fireproof components, the supporting structure and elements must meet the fire resistance in addition to the fireproof durability of the glass.
But in general the flameproof glass has good pervious to light performance and fireproof heat insulation performance, durability and good light resistance, has a certain impact strength, wide range of product performance is stable, using the environment temperature, can be widely used in the fire door, window and fire partition, has very high use value
Main function of fire resistant glass
High intensity: with the same thickness, the intensity of fire resistant glass is 6 times as plain float glass, and 1.5 times as tempered glass.
Machinability: Can be processed to film coated glass, laminated glass, insulating glass while multi function of decoration, elegant appearance, security and fire-resistant.
Fire resistance rating: meet the requirement of fire integrity but not meet the requirement of heat insulation and prevention from heat radiant intensity.
Light weight: individual sheet fire resistant glass is far less heavier than compound fire resistant glass with the same square, thus is good for delivery and installation.
Compound fire resistant glass
Fire resistance rating: meet the requirement of fire integrity as well as heat insulation and prevention from heat radiant intensity.
Can prevent spreading of flame and smog in great time interval while stop big volume of heat transferring but would not transparent when fire on.
Weak intensity, heavy weight, not suitable for delivery and installation.
Applicaiton of fire resistant glass
Solo sheet fire resistant glass is with good machinability, can be processed into laminated, coated glass etc, mostly for outdoor architecture.
Compound fire resistant glass
Compound fire resistant glass is mainly applied in indoor fire resistance and indoor fire insulation and surviving channel.
Compound fire resistant glass normally could not undertake secondary procession and the design measure of area can not be too large.
Quality
In accordance with Chinese national standard GB 15763.1-2001,《Safety glazing materials in building Fire-resistant glass》.
