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  The most comprehensive knowledge of LOW-E glass is introduced


(Aluminum windows and doors)




1、What is LOW-E glass?

LOW-EGlass is a low radiation glass, it is coated on the surface of the glass, the radiation rate of E glass from 0.84 to 0.15 below the formation of the.

2、What are the characteristics of LOW-E glass?

①Infrared reflectivity is high, can be directly reflected infrared thermal radiation.

The surface radiation rate of E is low, the ability of absorbing foreign energy is small, so that the radiation of heat energy is low.

Sun shading coefficient Sc a wide range, according to the need to control the transmission of solar energy, in order to adapt to the needs of different regions.

3、Why LOW-E film can reflect heat?

The LOW-E film is coated with a silver layer, and the silver can be reflected by more than 98% of the far infrared radiation. The shading coefficient Sc of LOW-E can be from 0.2 to 0.7, so that the solar direct radiation can be regulated according to the need.

4、What are the main types of coated glass?

There are two main types: online coating, vacuum magnetron sputtering coating (also known as offline coating).

The on-line coated glass is made on the float glass production line, which is single, poor thermal reflection and low manufacturing cost. The only advantage is that it can be processed by hot bending.

Offline coated glass varieties are rich and colorful, excellent thermal reflection performance, energy saving characteristics are obvious. The disadvantage is that it is not hot bending process.

5、LOW-E glass can be a single use?

LOW-E vacuum magnetron sputtering process for manufacturing glass can not only use the single chip, the synthesis of hollow glass or laminated glass using. But its radiation rate E far below 0.15, can be as low as 0.01.

Online coating technology to manufacture the LOW-E glass can be used in a single chip, but its radiation rate E=0.28, strictly speaking, has not been called LOW-E glass (Science on the radiation rate of E&le; 0.15 of the objects referred to as low radiation objects).

6、LOW-E glass in the summer, winter, respectively, how to play a role?

In winter, the indoor temperature is higher than the outdoor, the far infrared thermal radiation mainly comes from the indoor, LOW-E glass can be reflected back to the room to keep the indoor heat no more than diarrhea. For some solar radiation from the outside, LOW-E glass can still allow it to enter the room, this part of the energy is absorbed by indoor objects and then transformed into the far infrared thermal radiation and stay indoors.

Summer outdoor temperature is higher than indoor, far infrared thermal radiation from outside the city, Low-E glass can be reflected out to prevent heat into the room. For outdoor solar radiation, LOW-E glass with low shading coefficient can be selected to enter the room, thereby reducing the cost of certain costs (air conditioning costs).

7、What is the effect of argon filled in LOW-E hollow glass?

Argon is a kind of inert gas, its heat transfer performance is worse than that of air, so it can reduce the U value of hollow glass and increase the heat insulation property of hollow glass. LOW-E hollow glass, argon also has the role of protecting the LOW-E film.

8、LOW-E glass can be attenuated how much UV?

Compared with ordinary monolithic transparent glass, LOW-E glass can be reduced by 25%.Compared with the heat reflective coated glass, LOW-E glass can reduce UV 14%.

9、LOW-E film is located in the hollow glass which surface is the most suitable?

Hollow glass has 4 faces, from the outside to the number of the city were 1#, 2#, 3#, 4# surface. Heating demand more than the cold demand of the region (northern region), the LOW-E film should be in the first 3# surface. On the contrary, the cooling demand exceeds the heating demand area (South), LOW-E should be located on the surface of 2# film.#

10、LOW-E how long will the film last?

The duration of the coating layer is the same as the duration of the seal of the hollow glass space layer.

11、How to determine whether the hollow glass coated with LOW-E film?

According to the following steps to monitor and judge:

A、Observe the four images inside the glass (in other words, there are 4 flame from the 4 image).

B、Will matches or bright part put different from the other three images in color in front of the window (whether you in the city or in outdoor), if Low-E glass is an image, if 4 image color the same can be determined before loading the Low-E glass.

12、Does the user need to do something to maintain the LOW-E glass product?

Unwanted Because the LOW-E film is sealed in the middle of the hollow glass or laminated glass, so no need to maintain, only to keep the glass surface clean.