Insulating glass identification

07-09-2019

1. Fill the inert gas argon and helium

According to the introduction of the design and construction of energy-saving houses, in the case of a window, the loss of heat energy in the house is mainly through the window frame conduction, the glass radiation, the window sill and the convection of the door frame, so that the "insulating glass" is shipped. Born. In fact, the "insulating glass" is not "empty". According to the technical requirements, the distance between the two layers of the insulating glass is generally 8 mm. The test proves that if the spacing of 8 mm is completely vacuum, the atmospheric pressure will crush the glass. Therefore qualified hollow glass. The interlayer, that is, the 8 mm thick space, must be filled with inert gases such as argon and helium. After filling, the test shows its K value (heat transfer coefficient limit value), which can be reduced by 5% under vacuum conditions, which means better insulation performance.

2. the market is confused with double glazing

In other words, if the hollow glass you buy back is really “empty” in the interlayer, it will undoubtedly indicate that its insulation or thermal insulation performance is double-glazed at best. The effect of heat preservation and energy saving is inevitably poor. Qualified insulating glass can reduce the k value of the heat transfer coefficient of the general window glass from 3.5 to 2.8. The heat transfer performance can make the heat in the house not easily lost. The fragile glass in the market is mostly simply fixed together with two pieces of glass, and its thermal insulation performance is undoubtedly poor.

3. The spacer between the glass with holes

"Double-layer glass" with poor heat insulation performance often causes fogging and blooming in the interlayer due to the entry of air vapor, and even molds, so some enterprises often use a spacer strip with a hole between the two pieces of glass. The "processing" method of placing the granular desiccant in the pores of the spacer strip actually only temporarily occludes the ear, does not improve any thermal insulation properties of the double glazing, and after a long period of desiccant failure, it will still Dew stuffing.

The choice of spacers mainly considers two factors:

(1) Thermal conductivity.

(2) The influence on the sealing life of the hollow window. Starting from the thermal conductivity, the spacers used for the insulating glass can be divided into two categories: cold edges and warm edges.

Cold edge refers to the traditional metal aluminum frame.

Warm edge refers to the material or structure of the spacer strip that is different from the spacer strip of the traditional aluminum spacer, such as the strip used in China (adding a layer of sealant containing desiccant from the wavy aluminum strip).

Most of the spacers currently used in China are aluminum spacers, which are cold-edged types, which tend to cause condensation or frost on the edges, reducing the energy-saving effect of the entire window. The warm edge spacer is a spacer designed to improve the thermal conductivity of the edge of the insulating glass. The energy saving effect of the window can be achieved by using a small amount of metal or a completely non-metallic material or changing the structure of the conventional aluminum strip.

1. Excellent bending performance: can meet any bending angle requirements in the production process. Such as: rectangle, curved and so on.

2. Fire retardant, anti-condensation, UV performance

3. Low thermal conductivity for excellent thermal insulation

4. Efficient noise reduction and noise reduction performance

5. Beautiful visual effects


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