brief introduction
Low-E Glass Also called Low emissivity glass ， Low-E It's English Low-Emissivity Short name of. Low-E The glass is coated with a film system containing one or two or even three layers of silver by vacuum magnetron sputtering to reduce energy absorption or control indoor and outdoor energy exchange and ensure life and work vity And achieve the purpose of environmental protection and energy conservation. In architectural applications, Low-E The use of glass can achieve the effect of "warm in winter and cool in summer", with good heat insulation and heat preservation performance. Low radiation glass is Coated glass As a member of the family, it is widely used from twenty century ninety It began in the developed countries in Europe and America in the 1990s. The glass can reduce the heat transfer caused by indoor and outdoor temperature difference.
Low radiation glass Low-E ( Louyi ) Glass is a member of the coated glass family, which can reduce the heat transfer caused by indoor and outdoor temperature difference. It is a kind of Float glass It is also a new generation of coated glass that allows outdoor solar energy and visible light to pass through, and reflects the secondary radiant heat of objects like an infrared mirror. When used in any climatic environment, it can control sunlight, save energy, control and adjust heat and improve the environment.
Professionals also call it thermostatic glass: no matter how much the temperature difference between indoor and outdoor is, as long as low radiation glass is installed, there will be few indoor flowers air conditioner The cost can keep the winter warm and summer cool forever. However, it should be noted that the low emissivity glass not only affects the ultraviolet light and the shading coefficient of the glass, but also shows a small number of different colors on the reflective surface of the glass from a certain angle
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characteristic
Low-E Glass has the characteristics of low heat transfer coefficient and infrared reflection. Its main function is to reduce the transmission of indoor and outdoor far-infrared radiation energy, and allow solar radiation to enter the room as much as possible, so as to maintain indoor temperature and save heating and air-conditioning costs. The visible light transmission of this product is high, and the color of the reflected light is light, which is almost difficult to see. Therefore, it is mostly used in cold regions in middle and high latitudes. Proper control Low-E Through the glass, it can not only reflect some solar radiation, but also reduce the transmission of indoor and outdoor thermal radiation energy, thus forming a window to isolate radiation energy; such Low-E The visible light transmission of glass products is moderate, and the color of the reflected light is mostly light blue, which has a certain decorative effect. Therefore, this product has stronger applicability and wider selection range, and can be widely used in high, middle and low latitude regions; It also has the function of preventing external heat from entering the room in summer.
Low emissivity glass is a new generation of coated glass that can not only let outdoor solar energy and visible light pass through like float glass, but also reflect back the secondary radiant heat of objects like infrared reflectors. When used in any climate environment, it can control sunlight, save energy, control and adjust heat and improve the environment.
Note that the low emissivity glass not only affects the ultraviolet light and the shading coefficient of the glass, but also shows a small number of different colors on the reflective surface of the glass from a certain angle.
Good thermal performance
LOW-E Glass has good thermal performance; The heat loss of door and window glass is the main part of building energy consumption, and the radiation rate of ordinary float glass is as high as zero point eight four , the emissivity can be reduced to zero point one following. use Low-E Glass can be used to manufacture doors and windows of buildings, which can greatly reduce the transmission of indoor heat energy caused by radiation to the outside, and achieve the ideal energy-saving effect.
Good optical performance
LOW-E Glass has good optical properties; Low-E Glass has a high transmittance to visible light in sunlight, up to 80% However, the reflectance is very low, which greatly improves its optical performance compared with traditional coated glass.
Color classification
low-E Technically, it can be divided into online deposition coating method and offline vacuum magnetic sputtering method. Color, compared with the basic color, the three basic colors of blue, green and gray can make different processes according to the reflection of different elements. For example, gold and silver.
