Structural specifications of regular insulating glass doors and windows of Dongguan system doors and windows glass factory


Release time:

Nov 15,2024

The structural specifications of regular insulating glass doors and windows mainly involve the thickness of the glass, the size of the cavity and the overall structure. The following is a detailed explanation of these specifications:

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1. glass thickness

The glass thickness of insulating glass doors and windows is one of the key specification parameters. The common glass thickness has 4mm, 5mm, 6mm and other specifications, which can be selected according to the use environment and needs. Generally speaking, the thicker the glass, the higher the strength and safety, but the cost will increase accordingly.

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2. cavity dimensions

Cavity size refers to the distance between the two pieces of glass, this size will affect the insulation effect of insulating glass. Common cavity sizes are 12mm, 15mm, 18mm, etc. A larger cavity size can provide better insulation performance, because the thickening of the air layer can reduce heat transfer. Similarly, an increase in the size of the cavity leads to an increase in cost.

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3. overall structure

The overall structure of regular insulating glass doors and windows is usually composed of the following parts:

Glass: Insulating glass is generally composed of double or three layers of glass, which are separated by spacers to form a closed air layer.

Spacer bars: Spacer bars are usually made of aluminum or other metal materials with continuous small holes for placing desiccant. The main function of the spacer is to support the two pieces of glass, maintain the overall thickness of the insulating glass uniform, and provide the working environment of the desiccant.

Desiccant: The desiccant usually uses 3A molecular sieve and other high-efficiency moisture absorption materials to ensure the drying of the spacer gas for a long time. The thermal insulation coefficient of the dry gas is lower, which can further improve the thermal insulation performance of the insulating glass.

Sealant: Insulating glass usually requires two sealants, namely the first layer of butyl glue and the second layer of polysulfide/silicone glue. These sealants adhere the two pieces of glass to the spacer bar and act as an air-tight and water-tight barrier.

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4. common specification examples

In practical applications, the common specifications of insulating glass doors and windows are usually expressed in the form of "glass thickness cavity size glass thickness", such as "5 6A 5", "6 9A 6" and so on. Among them, "5" and "6" respectively represent the thickness of the two pieces of glass (in millimeters), "6A" or "9A" represents the cavity size (in millimeters), and "A" represents that the filling gas in the middle is air. In addition, some high-end insulating glass products will use inert gases such as argon and krypton as filling gases to further improve their thermal insulation and sound insulation performance.

In summary, the structural specifications of regular insulating glass doors and windows involve multiple aspects, including glass thickness, cavity size, and overall structure. When purchasing, consumers should weigh and choose according to their actual needs and budget.


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