The international definition of Chinese glass is: two or more pieces of glass are evenly separated by effective support and are bonded and sealed around.
A product that forms a dry gas space between glass layers.Central air conditioning has the function of sound insulation, heat insulation, anti-condensation and energy saving, and is widely used in construction, transportation, cold storage and other industries.
At first, the central air conditioning refers to the double-layer insulated glass, the earliest patent is the United States T.D.Stofson published in August 1, 1865, and the first in the United States has been promoted and applied.Because of its excellent thermal insulation, thermal insulation, energy saving, sound insulation, safety and comfort, anti-coagulant frost, anti-dust pollution, central air conditioning, after more than 100 years of development, has been widely used in the world in the 1950s.
According to the number of central control guns, the central air conditioning can be divided into double-layer insulating glass and multi-layer insulating glass. The double-layer insulating glass is composed of two pieces of plate glass and a hollow cavity, while the multi-layer insulating glass is composed of more than two pieces of glass and two or more hollow caviences.The more hollow cavities, the better the heat insulation and sound insulation effect, but the increase of hollow cavities will increase the cost, so the most commonly used is double-layer hollow glass and three-layer hollow glass with two hollow cavities.
According to the production mode, it can be divided into three kinds: fused insulating glass, welded insulating glass and glued insulating glass.Insulating glass was first produced by adhesive bonding method in the world, which was only used as window glass for trains.In the 1940s, the United States invented the welding insulating glass, and then the welding insulating glass technology was introduced to Europe.In the mid-1950s, America and Europe simultaneously invented the fusion method to produce insulating glass.However, the use of individual and adhesive bonding method is still the mainstream of the production of insulating glass at home and abroad.
The raw materials of insulating glass mainly include glass, spacer strip, butyl glue, two-component polysulfide glue or organic polysiloxane glue, desiccant, composite adhesive strip, super spacer strip, inert gas and so on.
Manufacture central air conditioning of the original glass can be flat glass, coated glass, toughened glass, laminated glass, tinted glass and embossed glass.Flat glass shall conform to GB11614, laminated glass shall conform to GB9962, tempered glass shall conform to GB/T9963, and other kinds of glass shall conform to the corresponding standards.In general, the production of insulating glass should choose colorless float glass or other energy-saving glass and safety glass.
Post time: Apr-14-2021