Good doors and windows will have a good glass, LOW-E glass has become a beautiful landscape in doors and windows with its energy saving and superiority. So, what are the magical effects of LOW-E glass installed on doors and windows? Let's learn more about it together.

1. Features of LOW-E glass:

 ①High infrared reflectivity, which can directly reflect far-infrared thermal radiation.

 ② The surface emissivity E is low, and the ability to absorb external energy is small, so that the heat energy radiated is less.

 ③The shading coefficient Sc has a wide range, and the amount of solar energy transmission can be controlled according to the needs to meet the needs of different regions.

2. The LOW-E film layer can reflect heat

 The LOW-E film is coated with a silver layer, which can reflect more than 98% of the far-infrared heat radiation, thus directly reflecting heat like a mirror reflects light. The shading coefficient Sc of LOW-E can be from 0.2 to 0.7, so that the direct solar radiation energy entering the room can be adjusted according to needs.

3. Coating process of LOW-E glass

 There are two main types: online coating and vacuum magnetron sputtering coating (also called offline coating). On-line coated glass is manufactured on a float glass production line, which has a single variety, poor heat reflectivity and low manufacturing cost. Its only advantage is that it can be hot bent. Off-line coated glass has a variety of varieties, excellent heat reflection performance and obvious energy saving characteristics. The disadvantage is that it cannot be hot bent.

Fourth, the use characteristics of LOW-E glass

 Low-E glass manufactured by vacuum magnetron sputtering process cannot be used as a single piece, but can only be used to synthesize insulating glass or laminated glass. But its emissivity E is much lower than 0.15 and can be as low as 0.01 or less. The LOW-E glass produced by the online coating process can be used as a single piece, but its emissivity E=0.28, which cannot be called LOW-E glass strictly speaking (scientifically, the object with emissivity E≤0.15 is called low radiation). object).

 5. The working principle of LOW-E glass in summer and winter

 In winter, the indoor temperature is higher than the outdoor, and the far-infrared heat radiation mainly comes from the indoor, and the LOW-E glass can reflect it back indoors to keep the indoor heat from escaping. For part of the solar radiation from the outdoors, the LOW-E glass can still allow it to enter the room. This part of the energy is absorbed by the indoor objects and then converted into far-infrared heat radiation and left indoors.

 In summer, the outdoor temperature is higher than the indoor temperature, and the far-infrared heat radiation mainly comes from outside the city. Low-e glass can reflect it out to prevent heat from entering the room. For outdoor solar radiation, LOW-E glass with low shading factor can be selected to restrict its entry into the room, thereby reducing a certain cost (air conditioning cost).

6. Argon in LOW-E insulating glass

 Argon is an inert gas, and its heat transfer is worse than that of air, so filling it into the insulating glass can reduce the U value of the insulating glass and increase the heat insulation of the insulating glass. For LOW-E insulating glass, argon also has the function of protecting the LOW-E film.

7. Attenuating UV light of LOW-E glass

 Compared with ordinary single-piece transparent glass, LOW-E glass can reduce ultraviolet rays by 25%. Compared to heat reflective coated glass, LOW-E glass reduces UV rays by 14%.

- Transferred from Xinglass.com