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Insulated Glass is made of two or more pieces of glass with effective support and evenly spaced and sealed at the periphery to form a dry gas space between the glass interlayers. The interlayer of the insulated glass is initially dry air, and other gases with a lower thermal conductivity than air are currently used. The minimum thickness of the gas interlayer of the insulating glass should not be less than 6mm, otherwise it will not function as thermal insulation. However, the thickness should not be too large, if it is too large to make the insulated glass too thick. In order to standardize the production of the frame, the gaps of the insulated glass are currently divided into 6, 9, and 12, 14, and 16 mm.
Any type of insulated glass consists of the following components:
The float glass constitute the insulated glass. These glasses can be ordinary laminated glass, smart glass ,solar control glass (including Low-E glass), and etc.
Aluminium Airspace. In the interlayer of the insulated glass, firstly to ensure the performance of the insulated glass, the interlayer gas must be dry, including dry air, argon or other special gases. Generally, depending on the requirements, the thickness of the insulated glass interlayer and the internal gas are also different.
Edge sealing system. There are two types of recognized insulated glass edge sealing systems: one is the traditional cold edge sealing system (slot aluminum), and the other is a warm edge sealing system (composite strip type) represented by American Swiggle strip. and the products have not been widely recognized.
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Product Name
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Insulated Glass
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Spacer Thickness
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6mm, 9mm, 12mm, 16mm, 19mm(1/4'',11/32'',1/2'',9/16'',19/32'',5/8'')etc.
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Glass Option
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Clear Glass, PDLC Smart Glass, Low Iron Glass, Tinted Glass, Ceramic Fritted Glass
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Low-E Option
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Single silver, Double silver, Triple silver
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Gas Filling
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Dry air, Argon Gas, Vacuum
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Size
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Max. Size: 12000*3300mm/Min.Size:300*300mm
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The thermal insulation properties of the insulating glass are mainly its thermal insulation of the gas interlayer, so that the temperature difference between the two sides is close to or even exceeds 10 °C. This is because the gas in the interlayer is in a closed space, the gas does not convect, thus, convective heat transfer and conduction heat transfer account for only a small proportion of the energy transfer of the hollow glass.
2. Heat preservation
Insulation of insulated glass means reducing indoor heat through its outdoor area during the winter, and the smaller the thermal resistance, the better the thermal insulation performance. If the glass is coated with a low-emission film, the radiation emissivity can be reduced to 0.1, and in winter, the heat radiated from the room will be reduced to provide better insulation.
3. Anti-condensation & Reducing Cold Radiation
Inside the insulated glass, there is a desiccant that can absorb water molecules, and the gas is dry; when the temperature is lowered, condensation does not occur inside the insulated glass, and the dew point temperature of the outer surface of the glass also rises. This is the biggest difference between insulated glass and double glass.
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