Types and characteristics of the hottest automobil

Types and characteristics of automobile safety glass

the front windshield of vehicles is the most vulnerable part. Therefore, the front windshield of cars on sale at present uses safety glass. The advantage of this material is that even if it is broken or even crushed, the glass can still be kept as a whole without scattering and hurting people

laminated glass is a kind of safety glass made of two or more pieces of glass bonded together with synthetic resin. The original sheet of laminated glass can be either ordinary glass, tempered glass, semi tempered glass, coated glass, heat absorbing glass, hot bending glass, etc; The most commonly used organic materials in the middle layer are PVB (polyvinyl butyral), methyl methacrylate, silicone, polyurethane, etc. When the outer glass is broken by impact, the fragments are stuck by glue, and only radial cracks are formed, which will not cause personal casualties due to the flying of fragments. There are two production methods of laminated glass: film method (dry method) and grouting method (wet method), but at present, dry method production is the mainstream

bulletproof glass is scientifically composed of multiple pieces of transparent flat glass with different thickness and multiple pieces of PVB film. Because glass and PVB film are bonded very firmly, almost as a whole, and because glass has high hardness and PVB film has good toughness, when bullets contact glass, their impact energy can be weakened to a very low degree or even zero by ideal medical load-bearing materials, so they cannot penetrate. Bulletproof glass can be used for military defense, protective glass of bank counters, gold and silver jewelry and other wood powder display cabinets for valuables heated at 110 ℃ and 130 ℃ and other specific workplaces

alarm, anti riot and anti-theft glass refers to the glass that is transparent and high-strength, can not be destroyed by simple tools, and can effectively prevent theft or destruction. It is usually made of multi-layer high-strength organic transparent materials and glued layer materials. In order to give early warning performance, metal wires can also be clamped in the glued layer, and sensors and alarm devices such as visible light, infrared light, temperature, pressure, etc. are embedded. Once a thief commits a crime, touching the alarm device in the glass, or even triggering the wound causing weapon or dizzy gas device connected in series with it, an alarm and corresponding measures will appear, so as to catch the thief in time and protect the property from theft. Anti theft glass is mainly used in bank vaults, weapon warehouses, cultural relics warehouses, Exhibition cabinets, precious commodity counters, etc

fireproof glass is a new functional material for building, which has good light transmission performance and fire retardant performance. Fire proof laminated glass can be divided into composite fire-proof glass and pouring fire-proof glass according to the characteristics of production process. There are many varieties of fire-proof glass, and the main varieties are as follows: laminated composite fire-proof glass is a common and best-selling transparent laminated composite fire-proof glass in the domestic and foreign markets. It is composed of two or more layers of flat glass sandwiched with transparent fireproof adhesive. The strength of its fire resistance mainly depends on the performance of fire-proof adhesive. Generally, fire-proof adhesives can be divided into two categories: inorganic materials (sodium silicate or also known as water glass) and organic materials (acrylamide, flame retardant, etc.), but the requirement in ISO 8295 (GB 10006 is equivalent to ISO 8295) is 100mm/min. The manufacturers of fire-proof glass in China widely use inorganic materials as adhesives to make fire-proof glass. Because its raw material resources are cheap and rich, it can be cured at room temperature or below l00 ℃. In case of fire, the adhesive of the fireproof glass will rapidly foam and expand to form an insulated fire-resistant and heat-insulating foam layer, which can absorb a lot of heat. In case of fire and breakage, the broken glass can be bonded to maintain the integrity of the fire-proof glass without hurting people

wired fireproof glass is a composite glass made by adding metal wires and materials into the interlayer of organic film or inorganic adhesive between two layers of glass. The addition of wire or can not only improve the overall impact strength of fire-proof glass, but also connect with electric heating and safety alarm system to play a variety of functions. The only defect of the fireproof glass is poor light transmittance

special fire-proof glass refers to the glass with special composition as the glass substrate, rather than the glass with ordinary flat glass composition. It mainly includes borosilicate fireproof glass, aluminosilicate fireproof glass, microcrystalline fireproof glass, etc. Its common main characteristics are: due to different compositions, the softening point of glass is higher, generally above 900 ℃; The coefficient of thermal expansion is low, and generally it will not crack or deform due to high temperature under strong flame; In particular, microcrystalline fireproof glass, in addition to the above characteristics, also has high mechanical strength, high flexural and compressive strength, and good chemical stability and physical and mechanical properties. It also has the advantages of high softening temperature and small coefficient of thermal expansion. They are used as fire-proof glass and are all top-grade products

hollow fire-proof glass is a new product of today's fire-proof glass, which integrates the functions of sound insulation, noise reduction, heat insulation and fire prevention. On the basis of making hollow glass, it only needs to coat a layer of metal salt on the glass substrate on the side that may be in contact with fire or flame, dry it under a certain temperature and humidity, and then process it into hollow fire-proof glass for hollow glass doors, windows, partitions, partitions, fire lanes, etc. with different shapes

single piece fire-proof glass (DFB) is a single-layer transparent special glass with fire integrity within a certain fire-resistant time limit and can effectively block the spread of flame and smoke. Because of its light and thin texture, good permeability and high strength, monolithic fireproof glass is now widely used in building external curtain walls, building external windows, partition walls, smoke retaining walls, shared spaces, atriums, daylighting roofs, furnace windows, etc

antenna glass is formed by adding a certain shape of conductor in the glass (usually welding 0.1 ~ 0.2mm constantan wire on the intermediate film), and then clamping it between two glasses, which can play the role of receiving antenna. The antenna clamped in the glass is not easy to corrode, can accept all bands of radio waves, and can also eliminate the wind noise generated by the rod antenna. PVB diaphragm laminated glass refers to laminated glass made by sandwiching PVB intermediate film between two or more pieces of glass. The main component of PVB film is polyvinyl butyral, which is the condensation product of polyvinyl alcohol and butyraldehyde. The PVB intermediate film can reduce the amount of noise penetrating the glass, reduce the noise decibel, and achieve sound insulation. Various setting conditions can be directly input from the touch panel. The laminated glass made of PVB plastic intermediate film can effectively block the common noise of 1000 ~ 2000Hz occasions

en film laminated glass is a vacuum one-step (without autoclave) laminated glass with en film as the intermediate layer. EN membrane is an intermediate for the production of special glass products such as safety flat laminated glass, arc laminated glass, process laminated glass, bulletproof glass and solar cells (the chemical composition of en membrane is vinyl acetate fiber polymer). It can be used to sandwich silk, cloth, paper products and various functional films, as well as the composite interlayer of glass and synthetic resin board. It has the characteristics of safety, energy saving, beauty, etc., and the material utilization rate is very high. The diaphragm can be spliced and used, leaving no trace on the glass surface

the air-conditioning glass is made of double-layer glass, which sends the heating to the interlayer of the double-layer glass, and then sends it indoors through the pores to replace the radiator. This can not only save energy, but also be convenient, sound proof and dust-proof. In summer, it can also be changed to air conditioning

decorative laminated glass is a laminated glass integrating film, decoration and glass. According to the different decorations, it can present different decorative effects and practical functions, including paper, brocade, various colored diaphragms, silk, metal plates, etc. Decorative laminated glass can not only achieve elegant and refined, gorgeous and abstract effect, but also play the role of security and anti-theft and electrostatic shielding