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Off-line coated low-irradiation glass

A low-emissivity glass and glass plate technology, applied in the field of glass manufacturing and energy saving, can solve the problem of high production cost, and achieve the effects of improving productivity, dense film and high deposition rate

Inactive Publication Date: 2010-05-19
李德杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the deficiencies and shortcomings of offline low-emissivity glass in the prior art, and provides a low-emissivity glass which not only has the characteristics of common material, stable performance, and no oxidation at all, but also solves the problem of high production cost of existing products. Problems that can promote the large-scale application of low-e energy-saving glass

Method used

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  • Off-line coated low-irradiation glass
  • Off-line coated low-irradiation glass
  • Off-line coated low-irradiation glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: low-emissivity glass with a single silver layer structure, its structure is as follows: glass plate, first dielectric layer with a thickness of 45 nanometers, silver layer with a thickness of 10 nanometers, and second dielectric layer with a thickness of 54 nanometers. The dielectric layer adopts silicon-oxygen film, and the first dielectric layer adopts 3 sub-layers, each sub-layer has the same structure, the part with high silicon component has a refractive index controlled at 2.3, and the part with the lowest silicon component has a refractive index controlled at 1.5; The dielectric layer also adopts 3 sublayers, each sublayer has the same structure, the part with high silicon component has a refractive index controlled at 2.1, and the part with the lowest silicon component has a refractive index controlled at 1.5. The visible light transmittance of the low-emissivity glass exceeds 85%, the sunlight transmittance exceeds 65%, and the radiation coefficien...

Embodiment 2

[0024] Embodiment 2: single silver layer structure low-emissivity glass, its structure is as follows successively: glass plate, the first medium layer of 39 nanometers thick, 2 nanometers thick titanium protection layer and interface improvement layer, 10 nanometers thick silver layer, 2 nanometers thick Thick titanium protective layer and interface improvement layer, 51 nanometer thick second dielectric layer. The dielectric layer is made of silicon-aluminum-oxygen thin film, and the atomic ratio of silicon to aluminum is 10:1. The first dielectric layer uses 3 sublayers, each sublayer has the same structure, and the refractive index is controlled at 2.3 for the parts with high silicon-aluminum components. For the part with the lowest component, the refractive index is controlled at 1.5; the second dielectric layer also uses three sublayers, each sublayer has the same structure, the part with the highest silicon-aluminum component has a refractive index of 2.3, and the part wi...

Embodiment 3

[0025] Embodiment 3: low-emissivity glass with a single silver layer structure, its structure is as follows: glass plate, first dielectric layer 36 nanometers thick, silver layer 10 nanometers thick, second dielectric layer 45 nanometers thick. The dielectric layer is made of silicon nitrogen thin film. The first dielectric layer uses 3 sublayers, each sublayer has the same structure. The part with the highest silicon component has a refractive index of 2.6, and the part with the lowest silicon component has a refractive index of 2.0; the second The dielectric layer also adopts 3 sublayers, each sublayer has the same structure, the part with the highest silicon component has a refractive index controlled at 2.3, and the part with the lowest silicon component has a refractive index controlled at 2.0. The visible light transmittance of the low-emissivity glass exceeds 85%, the sunlight transmittance exceeds 65%, and the radiation coefficient is less than 0.05.

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Abstract

The invention relates to an off-line coated low-irradiation glass belonging to the technical field of energy saving. The basic structure of the off-line coated low-irradiation glass comprises a glass substrate, a medium layer and a silver layer. The off-line coated low-irradiation glass is technically characterized in that the medium layer comprises a plurality of sub layers, wherein at least one sub layer is made by silicon or silicon alloy film, or silica film, silicon nitrogen film, silicon oxynitride film, silicon alloy oxygen film, silicon alloy oxygen-nitrogen film and the like the components of which are gradually changed, or aluminum, titanium, zirconium, hafnium, tantalum and other metal the components of which are gradually changed or a nitrogen film of an alloy of the metals. The low-irradiation glass not only has stable performance and high reliability, but also high protection efficiency, can greatly reduce the cost and is beneficial to large-scale popularization and application.

Description

technical field [0001] The invention belongs to the technical field of glass manufacturing and energy saving, and in particular relates to low-radiation glass with a silicon-containing film and a gradient composition film as a medium layer. Background technique [0002] Building energy consumption accounts for about 30% of the total energy consumption, and the potential for energy saving in buildings is very large. The low-emissivity hollow glass combined with the heat-insulating window frame can reduce the heat transfer through the window to about 25% of that of ordinary windows, and the effect is very significant. Low-emissivity glass is a glass that can pass through most of the visible light in sunlight, reflect some near-infrared rays in sunlight, and has a very low far-infrared emissivity coefficient. In developed countries in the world, most buildings use this kind of low-emissivity glass. In our country, the application of low-emissivity glass is not very extensive,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/36
Inventor 李德杰
Owner 李德杰
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