Blue-gray three-silver-layer low-emissivity glass

Abstract

The invention relates to the technical field of magnetron sputtering coating, and provides blue-gray three-silver low-emissivity glass which is sequentially accumulated and deposited on the surface of a glass substrate according to a process thickness requirement by utilizing vacuum magnetron sputtering coating equipment, so that a specified product appearance color is achieved. The structure is as follows: a first base layer silicon nitride and zinc tin oxide, a second functional layer silver layer, a third metal protection layer nickel chromium protection layer, a fourth dielectric layer metal aluminum oxide, zinc tin oxide and zinc aluminum oxide, a fifth functional layer silver layer, a sixth functional layer copper layer and a seventh metal protection layer nickel chromium layer. An eighth dielectric layer is metal aluminum oxide, zinc tin oxide and zinc aluminum oxide, a ninth functional silver layer, a tenth metal protective layer is a nickel-chromium layer, an eleventh metal aluminum oxide and silicon nitride protective layer, and a twelfth anti-oxidation layer is a silicon-aluminum pickaxe. According to the invention, the dependence of the silver layer on the nickel-chromium layer is reduced by adjusting the proportion of the three nickel-chromium protection layers and utilizing the metal aluminum oxide.

Description

Technical Field

[0001] The invention relates to the technical field of magnetron sputtering coating, and more specifically to a blue-grey triple-silver low-emissivity glass. Background Art

[0002] Triple-silver LOW-E (low-emissivity) products are a type of high-performance architectural glass that is mainly produced by coating multiple layers of metal films on the surface of a glass substrate to improve its thermal isolation, UV radiation resistance and other functions. These film layers usually include a silver layer, a metal oxide layer, a protective layer, etc., and are made through coating processes such as magnetron sputtering. Triple-silver LOW-E glass is widely used in windows, curtain walls and other parts of modern buildings due to its excellent thermal isolation performance, especially in buildings that need to improve energy efficiency and reduce heat loss. However, despite the strong thermal insulation function of this glass, existing triple-silver LOW-E products have some significant defects in color performance.

[0003] The film surface color of existing triple-silver LOW-E products is usually greenish, and the transmitted color is greenish or yellowish. This color deviation makes the glass present inconsistent visual effects under different lighting conditions, especially in the design of building exteriors and interior spaces, where color consistency becomes difficult to maintain. For example, under natural light, the color of the glass may show a strong green or yellow bias, resulting in the glass being inconsistent with the exterior design style of the building or the surrounding environment. This color cast problem, especially in the application of glass curtain walls, will reduce the overall visual effect and make it difficult to meet the high aesthetic standards of modern architecture.

[0004] Furthermore, when viewed from different viewing angles, the color tone of triple-silver LOW-E glass will also change significantly. Due to differences in lighting conditions, viewing angles, and glass surface structure, the film surface color and the transmitted color of the glass are often different. This instability in visual effects makes the appearance of the glass appear less uniform and also makes the overall visual effect of the building facade poor. Especially on cloudy days or when the light is weak, the color changes of the glass are more obvious, which seriously affects the consistency and aesthetics of the building's appearance. Therefore, in the existing triple-silver LOW-E products, how to improve the consistency of the film surface color and the transmitted color from the process itself has become a problem that needs to be solved urgently. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a blue-gray triple-silver low-emissivity glass, which effectively reduces the dependence of the silver layer on the nickel-chromium layer by adjusting the ratio of the nickel-chromium alloy protective layer and using metal aluminum oxide as the intermediate dielectric layer. These adjustments make the glass film surface color, transmission color and indoor color more consistent, and reduce the influence of light on the glass color, thereby improving the visual effect of the product in different environments.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A blue-gray triple-silver low-emissivity glass, the glass comprising a glass substrate, and sequentially provided on the glass substrate: a primer layer composed of silicon nitride and aluminum zinc oxide, a first functional layer silver layer, a first protective layer composed of nickel-chromium alloy, a first intermediate dielectric layer composed of metal aluminum oxide, tin zinc oxide, and aluminum zinc oxide, a second functional layer silver layer, a copper functional layer composed of metal copper, a second protective layer composed of nickel-chromium alloy, a second intermediate dielectric layer composed of metal aluminum oxide, tin zinc oxide, and aluminum zinc oxide, a third functional layer silver layer, a third protective layer composed of nickel-chromium alloy, a protective layer composed of metal aluminum oxide and silicon nitride, and an antioxidant layer composed of silicon aluminum zirconium.

[0008] As a further aspect of the present invention, the primer layer has a film thickness of 15 - 20 nm and is composed of silicon nitride and aluminum zinc oxide.

[0009] As a further aspect of the present invention, the first functional layer has a film thickness of 8 - 12 nm; the second functional layer has a film thickness of 10 - 12 nm; the copper functional layer has a film thickness of 4.5 - 6.5 nm and is composed of metal copper; the third functional layer has a film thickness of 17 - 19.5 nm.

[0010] As a further aspect of the present invention, the first protective layer has a film thickness of 0.5 - 1.2 nm, the second protective layer has a film thickness of 0.8 - 1.5 nm, and the third protective layer has a film thickness of 0.2 - 1.0 nm, all composed of nickel-chromium alloy.

[0011] As a further aspect of the present invention, the first intermediate dielectric layer has a film thickness of 50 - 70 nm and is composed of metal aluminum oxide, tin zinc oxide, and aluminum zinc oxide, with a component ratio of 1.5:6:2.5; the second intermediate dielectric layer has a film thickness of 70 - 90 nm and is composed of metal aluminum oxide, tin zinc oxide, and aluminum zinc oxide, with a component ratio of 1:6.5:2.5.

[0012] As a further aspect of the present invention, the protective layer has a film thickness of 23 - 35 nm and is composed of metal aluminum oxide and silicon nitride, with a component ratio of 1.5:8.5.

[0013] As a further aspect of the present invention, the antioxidant layer has a film thickness of 5 - 10 nm and is composed of silicon aluminum zirconium.

[0014] As a further aspect of the present invention, each functional layer is sequentially deposited on the glass substrate by a magnetron sputtering coating process, including:

[0015] Depositing a primer layer composed of silicon nitride and aluminum zinc oxide on the glass substrate by a magnetron sputtering coating process;

[0016] A first functional layer composed of a silver layer is deposited on the underlying layer by means of a magnetron sputtering coating process;

[0017] A first protective layer composed of a nickel-chromium alloy is deposited on the first functional layer by means of a magnetron sputtering coating process;

[0018] A first intermediate dielectric layer composed of aluminum oxide, tin zinc oxide, and aluminum zinc oxide is deposited on the first protective layer by means of a magnetron sputtering coating process;

[0019] A second functional layer composed of a silver layer is deposited on the first intermediate dielectric layer by means of a magnetron sputtering coating process;

[0020] A copper functional layer composed of metallic copper is deposited on the second functional layer by means of a magnetron sputtering coating process;

[0021] A second protective layer composed of a nickel-chromium alloy is deposited on the copper functional layer by means of a magnetron sputtering coating process;

[0022] A second intermediate dielectric layer composed of aluminum oxide, tin zinc oxide, and aluminum zinc oxide is deposited on the second protective layer by means of a magnetron sputtering coating process;

[0023] A third functional layer composed of a silver layer is deposited on the second intermediate dielectric layer by means of a magnetron sputtering coating process;

[0024] A third protective layer composed of a nickel-chromium alloy is deposited on the third functional layer by means of a magnetron sputtering coating process;

[0025] A protective layer composed of aluminum oxide and silicon nitride is deposited on the third protective layer by means of a magnetron sputtering coating process;

[0026] An antioxidant layer composed of silicon aluminum zirconium is deposited on the protective layer by means of a magnetron sputtering coating process.

[0027] As a further solution of the present invention, the glass surface and the film surface are blue-gray, and the transmitted color is neutral.

[0028] Compared with the prior art, the beneficial effects of a blue - gray triple - silver low - emissivity glass of the present invention are as follows: By adjusting the proportion of the three - layer nickel - chromium protective layer and using metal alumina to reduce the dependence of the silver layer on the nickel - chromium layer, the present invention optimizes the film structure of the triple - silver LOW - E glass, making the glass surface and the film surface present a blue - gray color, and the transmitted color is a neutral color. This improvement not only ensures that the glass maintains a consistent color under different lighting conditions but also effectively avoids the phenomenon of being greenish or yellowish, enhancing the stability of the visual effect. Compared with the prior art, traditional triple - silver LOW - E products usually show a greenish film surface color and a greenish - yellowish transmitted color. Especially on cloudy days or when the light is not strong, the color change is more obvious, seriously affecting the aesthetics of the building. The existing process fails to effectively control the color consistency, resulting in an unstable visual effect of the glass in different environments. The improvement of the present invention successfully solves this problem, ensuring the unity of the glass color and the enhancement of the visual effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of a blue - gray triple - silver low - emissivity glass of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1

[0032] A blue - gray triple - silver low - emissivity glass, the glass surface and the film surface of the glass are blue - gray, and the transmitted color is a neutral color; the glass includes a glass substrate, and the following are sequentially arranged on the glass substrate: a primer layer composed of silicon nitride and aluminum zinc oxide, a first functional layer silver layer, a first protective layer composed of nickel - chromium alloy, a first intermediate dielectric layer composed of metal alumina, zinc oxide tin, and aluminum zinc oxide, a second functional layer silver layer, a copper functional layer composed of metal copper, a second protective layer composed of nickel - chromium alloy, a second intermediate dielectric layer composed of metal alumina, zinc oxide tin, and aluminum zinc oxide, a third functional layer silver layer, a third protective layer composed of nickel - chromium alloy, a protective layer composed of metal alumina and silicon nitride, and an antioxidant layer composed of silicon aluminum zirconium.

[0033] In the embodiment of the present invention, the first layer of the blue - gray triple - silver low - emissivity glass is the primer layer, the primer layer is composed of silicon nitride and aluminum zinc oxide, and the film thickness of the primer layer is 15 - 20 nm.

[0034] In the embodiment of the present invention, the second layer of the blue-gray triple-silver low-emissivity glass is the first functional layer, the first functional layer is a silver layer, and the film thickness of the silver layer is 8-12 nm.

[0035] In the embodiment of the present invention, the third layer of the blue-gray triple-silver low-emissivity glass is the first protective layer, the first protective layer is a nickel-chromium layer, and the film thickness of the nickel-chromium layer is 0.5-1.2 nm.

[0036] In the embodiment of the present invention, the fourth layer of the blue-gray triple-silver low-emissivity glass is the first intermediate dielectric layer, the first intermediate dielectric layer is composed of metal alumina, zinc oxide tin, and zinc oxide aluminum, the film thickness of the first intermediate dielectric layer is 50-70 nm, and the component ratio of the three oxides is 1.5:6:2.5.

[0037] In the embodiment of the present invention, the fifth layer of the blue-gray triple-silver low-emissivity glass is the second functional layer, the second functional layer is a silver layer, and the film thickness of the silver layer is 10-12 nm.

[0038] In the embodiment of the present invention, the sixth layer of the blue-gray triple-silver low-emissivity glass is the copper functional layer, the copper functional layer is composed of metal copper, and the film thickness of the copper functional layer is 4.5-6.5 nm.

[0039] In the embodiment of the present invention, the seventh layer of the blue-gray triple-silver low-emissivity glass is the second protective layer, the second protective layer is a nickel-chromium layer, and the film thickness of the nickel-chromium layer is 0.8-1.5 nm.

[0040] In the embodiment of the present invention, the eighth layer of the blue-gray triple-silver low-emissivity glass is the second intermediate dielectric layer, the second intermediate dielectric layer is composed of metal alumina, zinc oxide tin, and zinc oxide aluminum, the film thickness of the second intermediate dielectric layer is 70-90 nm, and the component ratio of the three oxides is 1:6.5:2.5.

[0041] In the embodiment of the present invention, the ninth layer of the blue-gray triple-silver low-emissivity glass is the third functional layer, the third functional layer is a silver layer, and the film thickness of the silver layer is 17-19.5 nm.

[0042] In the embodiment of the present invention, the tenth layer of the blue-gray triple-silver low-emissivity glass is the third protective layer, the third protective layer is a nickel-chromium layer, and the film thickness of the nickel-chromium layer is 0.2-1.0 nm.

[0043] In the embodiment of the present invention, the eleventh layer of the blue-gray triple-silver low-emissivity glass is the composite protective layer, the composite protective layer is composed of metal alumina and silicon nitride, the film thickness of the composite protective layer is 23-35 nm, and the component ratio of the two materials is 1.5:8.5.

[0044] The twelfth layer of the blue - gray triple - silver low - emissivity glass in the embodiments of the present invention is an antioxidant layer, which is composed of silicon, aluminum, and zirconium, and the film thickness of the antioxidant layer is 5 - 10 nm.

[0045] In the embodiments of the present invention, the blue - gray triple - silver low - emissivity glass makes the glass surface and the film surface present blue - gray by adjusting the film layer structure, especially by adjusting the thickness of the three - layer nickel - chromium protective layer and the addition of the metal aluminum oxide layer. It avoids the greenish and yellowish hues, makes the transmitted color of the glass tend to be a neutral color, and shows a more natural and harmonious visual effect. Through these improvements, the glass can maintain a stable color performance under different lighting conditions, and there will be no color difference or color deviation when observed from multiple perspectives, ensuring the unity and beauty of the building appearance.

[0046] The blue - gray triple - silver low - emissivity glass in the embodiments of the present invention adopts a hollow structure (6Clow - E + 12A + 6C) composed of 6 - mm low - emissivity coated glass, 12 - mm intermediate air layer, and 6 - mm transparent glass. It has an external reflectance of 14%, ensuring an appropriate light - reflecting effect. At the same time, the visible light transmittance reaches 41%, which can effectively control the light intensity while ensuring indoor lighting. The shading coefficient of the glass is 0.24, and this index fully reflects the excellent performance of the present invention in terms of heat - insulation performance and can effectively reduce building energy consumption.

[0047] Example 2

[0048] In the embodiments of the present invention, each functional layer is sequentially deposited on the glass substrate by using a magnetron sputtering coating process.

[0049] In the embodiments of the present invention, an underlayer composed of silicon nitride and aluminum zinc oxide is deposited on the glass substrate by using a magnetron sputtering coating process, and the film thickness of the underlayer is 15 - 20 nm;

[0050] In the embodiments of the present invention, a first functional layer composed of a silver layer is deposited on the underlayer by using a magnetron sputtering coating process, and the film thickness of the first functional layer is 8 - 12 nm;

[0051] In the embodiments of the present invention, a first protective layer composed of a nickel - chromium alloy is deposited on the first functional layer by using a magnetron sputtering coating process, and the film thickness of the first protective layer is 0.5 - 1.2 nm;

[0052] In the embodiments of the present invention, a first intermediate dielectric layer composed of metal aluminum oxide, zinc oxide tin, and aluminum zinc oxide is deposited on the first protective layer by using a magnetron sputtering coating process. The film thickness of the first intermediate dielectric layer is 50 - 70 nm, and the component ratio of metal aluminum oxide, zinc oxide tin, and aluminum zinc oxide is 1.5:6:2.5;

[0053] In an embodiment of the present invention, a second functional layer composed of a silver layer is deposited on the first intermediate dielectric layer by a magnetron sputtering coating process, and the film thickness of the second functional layer is 10 - 12 nm;

[0054] In an embodiment of the present invention, a copper functional layer composed of metallic copper is deposited on the second functional layer by a magnetron sputtering coating process, and the film thickness of the copper functional layer is 4.5 - 6.5 nm;

[0055] In an embodiment of the present invention, a second protective layer composed of a nickel - chromium alloy is deposited on the copper functional layer by a magnetron sputtering coating process, and the film thickness of the second protective layer is 0.8 - 1.5 nm;

[0056] In an embodiment of the present invention, a second intermediate dielectric layer composed of aluminum oxide, tin zinc oxide, and aluminum zinc oxide is deposited on the second protective layer by a magnetron sputtering coating process. The film thickness of the second intermediate dielectric layer is 70 - 90 nm, and the component ratio of the aluminum oxide, tin zinc oxide, and aluminum zinc oxide is 1:6.5:2.5;

[0057] In an embodiment of the present invention, a third functional layer composed of a silver layer is deposited on the second intermediate dielectric layer by a magnetron sputtering coating process, and the film thickness of the third functional layer is 17 - 19.5 nm;

[0058] In an embodiment of the present invention, a third protective layer composed of a nickel - chromium alloy is deposited on the third functional layer by a magnetron sputtering coating process, and the film thickness of the third protective layer is 0.2 - 1.0 nm;

[0059] In an embodiment of the present invention, a protective layer composed of aluminum oxide and silicon nitride is deposited on the third protective layer by a magnetron sputtering coating process. The film thickness of the protective layer is 23 - 35 nm, and the component ratio of the aluminum oxide and silicon nitride is 1.5:8.5;

[0060] In an embodiment of the present invention, an antioxidant layer composed of silicon aluminum zirconium is deposited on the protective layer by a magnetron sputtering coating process, and the film thickness of the antioxidant layer is 5 - 10 nm.

[0061] As described above, only the specific embodiments of this application are provided, but the protection scope of this application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, and all should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

[0062] Finally: The above - mentioned are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blue-gray triple-silver low-emissivity glass, comprising a glass substrate, characterized in that: The glass substrate is provided with: a base layer composed of silicon nitride and zinc aluminum oxide, a first functional layer silver layer, a first protective layer composed of a nickel-chromium alloy, a first intermediate dielectric layer composed of metal aluminum oxide, zinc tin oxide, and zinc aluminum oxide, a second functional layer silver layer, a copper functional layer, a second protective layer composed of a nickel-chromium alloy, a second intermediate dielectric layer composed of metal aluminum oxide, zinc tin oxide, and zinc aluminum oxide, a third functional layer silver layer, a third protective layer composed of a nickel-chromium alloy, a protective layer composed of metal aluminum oxide and silicon nitride, and an anti-oxidation layer composed of silicon aluminum zirconium.

2. The blue-gray triple-silver low-emissivity glass according to claim 1, characterized in that: The bottom layer has a thickness of 15-20 nm and is composed of silicon nitride and zinc aluminum oxide.

3. The blue-gray triple-silver low-emissivity glass according to claim 1, characterized in that: The first functional layer has a thickness of 8-12 nm; the second functional layer has a thickness of 10-12 nm; the copper functional layer has a thickness of 4.5-6.5 nm and is composed of metallic copper; and the third functional layer has a thickness of 17-19.5 nm.

4. The blue-gray triple-silver low-emissivity glass according to claim 1, characterized in that: The first protective layer has a thickness of 0.5-1.2 nm, the second protective layer has a thickness of 0.8-1.5 nm, and the third protective layer has a thickness of 0.2-1.0 nm, all of which are made of nickel-chromium alloy.

5. The blue-gray triple-silver low-emissivity glass according to claim 1, characterized in that: The first intermediate dielectric layer has a thickness of 50-70 nm and is composed of metal aluminum oxide, zinc tin oxide, and zinc aluminum oxide, with a component ratio of 1.5:6:2.5; the second intermediate dielectric layer has a thickness of 70-90 nm and is composed of metal aluminum oxide, zinc tin oxide, and zinc aluminum oxide, with a component ratio of 1:6.5:2.

5.

6. The blue-gray triple-silver low-emissivity glass according to claim 1, characterized in that: The protective layer has a thickness of 23-35 nm and is composed of metal aluminum oxide and silicon nitride with a component ratio of 1.5:8.

5.

7. The blue-gray triple-silver low-emissivity glass according to claim 1, characterized in that: The anti-oxidation layer has a thickness of 5-10 nm and is composed of silicon, aluminum and zirconium.

8. The blue-gray triple-silver low-emissivity glass according to claim 1, characterized in that: The magnetron sputtering coating process is used to sequentially coat each functional layer on the glass substrate, including: A base layer composed of silicon nitride and zinc aluminum oxide is plated on the glass substrate by using a magnetron sputtering coating process; A first functional layer consisting of a silver layer is plated on the base layer by a magnetron sputtering coating process; Using a magnetron sputtering coating process to plate a first protective layer composed of a nickel-chromium alloy on the first functional layer; A first intermediate dielectric layer composed of metal aluminum oxide, zinc tin oxide, and zinc aluminum oxide is plated on the first protective layer by using a magnetron sputtering coating process; A second functional layer consisting of a silver layer is plated on the first intermediate dielectric layer by a magnetron sputtering coating process; Using a magnetron sputtering coating process to plate a copper functional layer composed of metallic copper on the second functional layer; Plating a second protective layer composed of a nickel-chromium alloy on the copper functional layer by using a magnetron sputtering coating process; A second intermediate dielectric layer composed of metal aluminum oxide, zinc tin oxide, and zinc aluminum oxide is plated on the second protective layer by using a magnetron sputtering coating process; A third functional layer consisting of a silver layer is plated on the second intermediate dielectric layer by a magnetron sputtering coating process; Plating a third protective layer composed of a nickel-chromium alloy on the third functional layer by using a magnetron sputtering coating process; Using a magnetron sputtering coating process to coat a protective layer consisting of metal aluminum oxide and silicon nitride on the third protective layer; An anti-oxidation layer composed of silicon, aluminum and zirconium is plated on the protective layer by using a magnetron sputtering coating process.

9. The blue-gray triple-silver low-emissivity glass according to claim 1, characterized in that: The glass surface and the film surface of the glass are bluish-gray, and the transmitted color is neutral.

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