Golden low-emissivity coated glass and manufacturing method thereof

Abstract

The invention relates to the technical field of glass processing and in particular provides golden low-emissivity coated glass and a manufacturing method thereof. The coated glass has a simple film structure, is easy to produce in large scale, is good in coloration and has an obvious energy-saving effect. The coated glass is characterized in that the following films are deposited on the surface of a glass substrate in sequence: a silicon nitride buffer layer film, a nichrome induction layer film, a golden function layer film, the nichrome induction layer film and a ZnO:Al protective layer film. The golden low-emissivity coated glass provided by the invention has higher reflectivity in middle and far infrared waves, has better shading performance in visible light bands and has the obvious advantages of low emissivity, sunshading, beauty, pure color and the like compared with the prior art, and meanwhile the color of reflection of the coated glass is golden in wider ranges of view angles.

Description

Technical field [0001] The invention involves the field of glass processing technology. Specifically, it is a gold -low -radiation coating glass and its manufacturing method with simple film layer structure, easy to large -scale production, good coloring, and significant energy saving effects. Background technique [0002] Low -radiated energy -saving coating glass is a energy -saving coating glass that has been widely used. It obtains a smaller glass conduction coefficient by improving the reflectivity of medium and far infrared radiation, reducing the indoor heating to outdoor radiation heat dissipation in winter, and then reducing heating energy energy.The purpose of consumption. [0003] Traditional low -radiation energy -saving coating glass mainly includes SNO based on transparent conductive oxide materials 2 : F's online coating glass and offline coating glass based on metal AG. At present, the appearance of low -radiation coating products based on these two types of mater...

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Problems solved by technology

[0003] Traditional low-emissivity energy-saving coated glass mainly includes transparent conductive oxide material SnO 2 : On-line coated glass of F and off-line coated glass based on metal Ag. At present, the appearance of low-e coating products based on these two types of materials in the market is mainly colorless and transparent. In order to obtain the function of color beautification, body dyeing can be used in the processing process Colored glass substrates, or multi-layer processing on the substrates for film system matching, the former needs to change the glass substrate repeatedly according to the final color of the product, the processing procedure is complicated, and the latter cannot obtain pure golden color due to the limitation of the coating material itself Appearance (mostly khaki or unable to obtain a golden color within the visible range of the human eye), especially on glass whose emissivity is ≤0.03 and whose thin film system is mainly composed of Ag and SnO2:F materials, it is difficult to achieve

[0004] Chinese patents ZL2008100656547 and ZL2012104512688 respectively disclose a golden low-emissivity coated glass and its manufacturing method. The former uses a composite metal film layer to achieve the golden appearance of the glass surface. During the manufacturing process, multiple coating operations are required on the glass substrate, while Since the appearance color of the product mainly comes from the copper plating layer in the composite metal film layer, the appearance color is not pure gold. In addition, the reflectance of the visible light film surface of the product is less than 55%, which can simplify the manufacturing process, improve the purity of the appearance color and There are deficiencies in the energy-saving effect; the latter uses Ag thin film as the functional layer, but there are still deficiencies in the appearance of color and the reflectivity of the visible light film surface.

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