Four-silver coated glass with low radiation and manufacturing technique thereof

Abstract

The invention discloses four-silver coated glass with low radiation and a manufacturing technique thereof, the four-silver coated glass with low radiation is provided with a coating film on a glass substrate; the four-silver coated glass with low radiation is characterized in that the film layer structure of the coating film from the glass substrate to the outside is sequentially as follows: a first dielectric combination layer, a first silver layer, a first isolation dielectric combination layer, a second silver layer, a second isolation dielectric combination layer, a third silver layer, a third isolation dielectric combination layer, a fourth silver layer and a second dielectric combination layer. According to the invention, the unique film layer structure and the manufacturing technique are utilized, and the dielectric layer made of a novel material is further used for replacing the traditional metal blocking layer to greatly improve the visible light transmissivity of the glass, reduce the interference color, increase the color selection range, guarantee high visible light transmissivity, low radiation rate, good photo-thermal ratio, optical stability and weather resistance for the improved products, and to obtain good thermal insulation and heat preservation effects.

Description

technical field [0001] The invention relates to the field of coated glass for buildings and automobiles, in particular to a four-silver low-radiation coated glass and a manufacturing process thereof. Background technique [0002] Low-emissivity coated glass is a new generation of coated glass that can not only transmit outdoor solar energy and visible light like ordinary glass, but also reflect the secondary radiant heat of objects like an infrared reflector (especially for mid- and far-infrared rays). Used in any climate environment, it can achieve the functions of controlling light, saving energy and heat, controlling regulation and improving the environment. Traditional low-emissivity glass includes single-silver and double-silver coated glass. In order to obtain lower U value, SC (shading coefficient) and good light-to-heat ratio (LSG), only by increasing the thickness of the silver layer, but the thickness of the silver layer The increase means that the transmission of...

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Problems solved by technology

Traditional low-emissivity glass includes single-silver and double-silver coated glass. In order to obtain lower U value, SC (shading coefficient) and good light-to-heat ratio (LSG), only by increasing the thickness of the silver layer, but the thickness of the silver layer The increase means that the transmission of visible light is reduced, the color selection is limited, and it cannot meet the needs of different customers, so more complex three-silver or even four-silver low-emissivity coated glass has appeared.

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