Fireproof glass

Fire prevention literally means to avoid fire. In the fabric deep processing process, it refers to a process to prevent fire. Everyone should pay attention to fire prevention, know more about fire escape knowledge at ordinary times, and protect the safety of himself and his family. That is to eliminate the fire risk and prevent fire.

Fireproof glass

Glass is an amorphous inorganic nonmetallic material, which is generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the primary raw material, and a small amount of auxiliary raw materials. Its primary component is silica and other oxides. The chemical composition of ordinary glass is Na2SiO3, CaSiO3, SiO2 or Na2O · Cao · 6sio2. The primary component is silicate double salt, which is an amorphous solid with irregular structure. It is widely used in buildings for wind insulation and light transmission. There are also colored glass mixed with oxides or salts of some metals to show color, and tempered glass prepared by physical or chemical methods. Some transparent plastics (such as polymethylmethacrylate) are sometimes called plexiglass.

plate glass

Flat glass is also called white glass or clean glass. Its chemical composition is generally attributed to sodium calcium silicate glass, and the composition scale is: sio270 ~ 73% (weight, the same below); Al2O30～3%； CaO6～12%； MgO0～4%； Na2O+K2O12～16%。 It has the functions of light transmission, brightness, heat preservation, sound insulation, wear resistance, climate change resistance and so on. The primary physical function index of flat glass: the refractive index is about 1.52; More than 85% light transmittance (2mm thick glass, except colored and coated glass); Softening temperature 650 ~ 700 ° C; Thermal conductivity 0.81 ~ 0.93 w / (m · Kai); Expansion coefficient 9 ~ 10 × 10-6 / on; The specific gravity is about 2.5; The bending strength is 16 ~ 60 MPa.