Online Low-e Glass Production Process

1. Online Low-e glass production process

The online Low-E glass is sprayed with a tin salt as a main component on a hot sheet glass surface during the production of float glass to form a single layer of tin oxide (SnO2) compound film with a certain low radiation function. Into. Off-line Low-E glass is made on a special production line by using vacuum magnetron sputtering to coat evenly low-emissivity metallic silver (Ag) and other metals and metal compounds on the sheet glass surface. It consists of four layers of film.

2.Low-e glass varieties and appearance

The online Low-E glass has a single variety and is limited by the scale production of float glass. Currently, it is only 6mm thick, a colorless and transparent variety. There are various kinds of off-line Low-E glass, which can produce high, medium and low transmittance products according to different climatic characteristics. There are silver ash, light gray, light blue and colorless and transparent in color, and can also be made green with colored glass. And other various colors. Thickness can be made from 3 to 12mm.

3.Low-e glass performance parameters

The spectrum of the online Low-E glass exhibits the characteristics of the tin oxide conductive film, while the spectrum of the off-line Low-E glass exhibits the characteristics of the silver and tin oxide composite film, both of which have good transmission to visible light, and the latter to the near-infrared light. It has much higher reflection than the former, and the far infrared radiation has less absorption and higher reflection than the former. Therefore, off-line Low-E glass has a low shading coefficient and a low heat transfer coefficient compared to the online Low-E glass.