In this article, we will introduce the characteristics and functions of explosion-proof glass and fire-resistant glass respectively.
1. What are the characteristics of explosion-proof glass
Features of explosion-proof glass:
1.1 High safety: Because the PVB in the middle layer is tough and has strong adhesion, it is not easy to be penetrated after being damaged by impact, and the fragments will not fall off, and are tightly bonded to the PVB film.
1.2 More functions: Compared with other glass, it has the properties of shock resistance, anti-theft, bullet-proof, explosion-proof, anti-ultraviolet and so on.
1.3 Stronger energy saving: The middle PVB layer can reduce solar radiation, prevent the loss of energy, save the power consumption of air conditioners, and can buffer the sonic vibration of the sound, thus achieving the sound insulation effect. However, the sound insulation effect is not as good as that of the vacuum layer.
Explosion-proof glass is the glass that can prevent violent impact. It is a special glass made of special additives and the interlayer in the middle. Even if the glass is broken, it will not fall off easily, because the middle material (PVB film) and the other One side of the explosion-proof glass has been fully bonded. Therefore, the explosion-proof glass can greatly reduce the damage to personnel and valuables in the event of violent impact.
2. What are the characteristics and functions of fireproof glass?
Features: Superior fire resistance, high strength, safety, high weather resistance, good machinability.
Function: Before choosing fireproof glass, it is necessary to know the specific fire protection requirements of fireproof components composed of fireproof glass, whether it is fire prevention, heat insulation or smoke insulation, fire resistance limit requirements, etc. Single-piece and composite perfusion type fireproof glass cannot be like ordinary flat glass. When cutting with a glass knife, it must be processed to a certain length, but the composite (dry) fireproof glass can meet the requirements of being cut. When selecting fireproof glass to form a fireproof component, in addition to considering the fireproof durability of the glass, its supporting structure and various elements are also Fire resistance requirements must be met.
There are many kinds of fireproof glass, such as single-piece cesium potassium fireproof glass, which is ion exchanged at high temperature for more than 20 hours through special chemical treatment, which replaces the metal sodium on the glass surface and forms chemical toughening stress; at the same time, after physical treatment, High-strength compressive stress is formed on the surface of the glass, which greatly improves the impact strength. When the glass is broken, it will appear in the state of tiny particles, reducing the damage to the human body! The strength of a single piece of cesium potassium fireproof glass is 6-12 times that of ordinary glass, which is tempered glass. 1.5-3 times higher! China's building codes require that all products installed on partitions with fire protection requirements should be sampled by the provincial fire brigade where the enterprise is located and sent to the state-designated fire protection material testing center.
The advantage of monolithic cesium-potassium fire-resistant glass is its ability to withstand heat shock and rapid changes in temperature, which depends on the specific heat capacity of the glass, which can affect the rate of temperature rise, thermal conductivity, rate and distribution of heat through the glass, and thermal expansion. At the same time, the single piece of cesium potassium fireproof glass can withstand the quenching treatment in cold water at 300℃!
Compared with traditional grouting fireproof glass, monolithic cesium-potassium fireproof glass has the characteristics of high weather resistance in addition to high strength and easy installation! Chemical grouting fireproof glass is not only prone to bubbles during the production process, but also exposed to ultraviolet rays and flames. Under the action, it quickly becomes milky white, and the basic function of glass transparency is lost, so it is impossible to observe the fire situation! The single-piece cesium potassium fireproof glass still maintains the transparent function under the action of ultraviolet rays and flames without any change. These are fireproof glass. Superiority over other glass.
-转自中国玻璃网