Who invented glass?
The world’s earliest glass makers were the ancient Egyptians. The emergence and use of glass has a history of more than 4,000 years in human life. Small glass beads have been unearthed from the ruins of Mesopotamia and ancient Egypt 4,000 years ago. In 1688, Nave invented the process of making large pieces of glass.
Introduction:
Glass is formed by melting sand and other chemicals together (the main production raw materials are: soda ash, limestone, quartz). A silicate non-metallic material that forms a continuous network structure when melted and gradually increases in viscosity and hardens during cooling, causing it to crystallize. The chemical composition of ordinary glass is Na2O·CaO·6SiO2, and its main component is silicon dioxide, which is an amorphous solid with an irregular structure. It is widely used in buildings to isolate wind and light, and is a mixture. There are also colored glass mixed with certain metal oxides or salts to show color, and tempered glass made by special methods. Sometimes some transparent plastics (such as polymethylmethacrylate) are also called plexiglass.
Glass includes quartz glass, silicate glass, soda-lime glass, fluoride glass, high-temperature glass, high-pressure-resistant glass, UV-resistant glass, explosion-proof glass, etc. Usually refers to silicate glass, which is made from quartz sand, soda ash, feldspar and limestone as raw materials. After mixing, high-temperature melting and homogenization, it is processed into shape and then annealed. Widely used in construction, daily necessities, medical care, chemistry, electronics, instrumentation, nuclear engineering and other fields. Data expansion
Glass is divided into: tempered glass, porous glass (i.e. foam glass, pore size about 40nm, used for seawater desalination, virus filtration, etc.), conductive glass (used as electrodes and aircraft Windshield), crystallized glass, opal glass (used for lighting devices and decorative items, etc.) and insulating glass (used as door and window glass), etc.
Classification of automotive glass:
Automotive laminated glass
Laminated glass refers to a transparent adhesive plastic film attached to the second or third layer Between the glass, the toughness of plastic and the hardness of glass are combined, which increases the glass's resistance to breakage and can still maintain visibility after being broken. Mostly used for car windshields.
Automotive area tempered glass
Area tempered glass is a new type of tempered glass. It has been specially treated so that when it is broken by impact, the cracks in the glass can still be maintained to a certain extent. The clarity ensures that the driver's field of view is not affected. Mostly used for car windshields and instrument protection screens.
There are five main types of fire-resistant glass. One is laminated composite fire-resistant glass, the other is wired fire-resistant glass, the third is special fire-resistant glass, the fourth is insulated fire-resistant glass, and the fifth is high-strength single fire-resistant glass. Layer cesium potassium fireproof glass. Of course, technology is constantly developing, so related aspects are also constantly improving. Different types of glass have different functions, so their related production processes and uses are different, which requires us to be more detailed. considered and analyzed.
Reference: Baidu Encyclopedia-Glass