Temperable glass

Abstract

The utility model provides a kind of toughened glass, belong to glass technical field.The utility model provides the toughened glass including glass substrate and the dielectric layer and metal layer alternately on glass substrate surface successively;Toughened glass includes at least four dielectric layers and at least three functional layers;Functional layer includes in turn front protective layer, metal layer, rear protective layer and transparent conductive layer, and metal layer includes silver layer or silver copper alloy layer.The utility model's toughened glass compared with ordinary single double silver LOWE glass has more excellent heat insulation performance and higher visible light, and lower solar near-infrared transmission ratio and lower heat conduction coefficient, simultaneously by design glass's film layer structure, make glass's film layer before and after toughening have good stability, solve the glass heating uneven due to film layer too thick, too much, silver in metal layer is higher to infrared band reflection leads to glass, prone to toughening deformation, silver copper film oxidation, large chromatic aberration, green and other quality problems.

Description

Technical Field

[0001] This utility model relates to the field of temperable glass technology, and in particular to a type of temperable glass. Background Technology

[0002] With increasingly stringent global requirements for energy-efficient buildings and environmental protection, multi-silver temperable Low-E glass is gaining a larger market share due to its superior thermal insulation performance. Multi-silver temperable Low-E glass, such as triple-silver temperable Low-E glass, offers higher visible light transmittance, lower near-infrared solar transmittance, and a lower heat transfer coefficient compared to existing single- or double-silver Low-E glass, significantly improving building energy efficiency by approximately 80% compared to ordinary clear glass structures. However, several technical challenges exist: multi-silver temperable Low-E glass is thicker than single or double-silver glass, and the high-temperature tempering process can cause silver oxidation, affecting the glass's optical properties and appearance. Therefore, its protective material must be sufficiently thick. However, excessively thick film layers can result in a very greenish tint to the glass. Furthermore, a thicker silver film layer leads to high infrared reflection, causing uneven heating and potential tempering deformation and color differences. Therefore, adjustments to the film structure are necessary to meet these requirements. Utility Model Content

[0003] The main purpose of this utility model is to provide a temperable glass that solves the technical problems of temperable glass in the prior art, which is prone to tempering deformation and large color difference due to excessively thick film layers.

[0004] To achieve the above objectives, this utility model provides a temperable glass, which includes a glass substrate and a dielectric layer and a functional layer that are alternately stacked on the surface of the glass substrate.

[0005] The temperable glass comprises at least four dielectric layers and at least three functional layers;

[0006] The functional layer comprises a front protective layer, a metal layer, a rear protective layer, and a transparent conductive layer stacked in sequence, wherein the metal layer comprises a silver layer or a silver-copper alloy layer.

[0007] In some embodiments of this utility model, the front protective layer is a tantalum layer or a tantalum alloy layer; and / or, the rear protective layer is a tantalum layer or a tantalum alloy layer.

[0008] In some embodiments of this utility model, the front protective layer is a tantalum alloy layer, which is a tantalum-copper alloy layer, a tantalum-niobium alloy layer, a tantalum-titanium alloy layer, or a tantalum-nickel-chromium alloy layer;

[0009] And / or, the rear protective layer is a tantalum alloy layer, which is a tantalum-copper alloy layer, a tantalum-niobium alloy layer, a tantalum-titanium alloy layer, or a tantalum-nickel-chromium alloy layer.

[0010] In some embodiments of this utility model, the transparent conductive layer is an AZO layer;

[0011] And / or, the dielectric layer is a silicon nitride layer and a zinc-aluminum layer stacked sequentially.

[0012] In some embodiments of this utility model, the thickness of the glass substrate is 5mm to 12mm;

[0013] And / or, the thickness of the dielectric layer is 15nm to 70nm;

[0014] And / or, the thickness of the metal layer is 8.5 nm to 45 nm;

[0015] And / or, the thickness of the functional layer is 2nm to 20nm;

[0016] And / or, the thickness of the front protective layer is 1 nm to 10 nm;

[0017] And / or, the thickness of the rear protective layer is 0.5 nm to 5 nm;

[0018] And / or, the thickness of the transparent conductive layer is 5nm to 10nm.

[0019] In some embodiments of this utility model, the temperable glass includes a glass substrate and a first dielectric layer, a first functional layer, a second dielectric layer, a second functional layer, a third dielectric layer, a third functional layer, and a fourth dielectric layer that are sequentially and alternately stacked on the surface of the glass substrate.

[0020] In some embodiments of this utility model, the first functional layer includes a first front protective layer, a first metal layer, a first rear protective layer, and a first transparent conductive layer stacked sequentially.

[0021] And / or, the second functional layer includes a second front protective layer, a second metal layer, a second rear protective layer, and a second transparent conductive layer stacked sequentially;

[0022] And / or, the third metal functional layer includes a third front protective layer, a third functional metal layer, a third rear protective layer, and a third transparent conductive layer stacked sequentially.

[0023] In some embodiments of this invention, the temperable glass further includes a wear-resistant layer.

[0024] In some embodiments of this utility model, the wear-resistant layer includes a zirconium oxide layer; and / or, the thickness of the wear-resistant layer is 5nm to 15nm.

[0025] In some embodiments of this utility model, the temperable glass includes a glass substrate and a first silicon nitride layer, a first zinc-aluminum layer, a first tantalum-nickel-chromium alloy layer, a first metal layer, a first tantalum alloy layer, a first AZO layer, a second silicon nitride layer, a second zinc-aluminum layer, a second tantalum-nickel-chromium alloy layer, a second metal layer, a second tantalum alloy layer, a second AZO layer, a third silicon nitride layer, a third zinc-aluminum layer, a third tantalum-nickel-chromium alloy layer, a third metal layer, a third tantalum alloy layer, a third AZO layer, a fourth silicon nitride layer, a fourth zinc-aluminum layer, and a zirconium oxide layer, which are sequentially stacked on the surface of the glass.

[0026] The beneficial effects that this utility model can achieve are:

[0027] This invention discloses a temperable glass with at least three functional layers, including a metal layer containing silver. This multi-silver layer structure results in a temperable LOWE glass that offers superior thermal insulation and visible light performance compared to ordinary single or double silver temperable LOWE glass. It also boasts a lower near-infrared solar transmittance and a lower thermal conductivity coefficient, significantly improving building energy efficiency. Furthermore, the temperable glass incorporates protective layers before and after the metal layer, preventing oxidation of silver and copper during the high-temperature tempering process, which would otherwise affect the glass's optical performance and appearance. The designed film structure ensures good stability of the film both before and after tempering, resulting in stable color changes and reducing the likelihood of cracking or delamination. It also offers excellent processability, addressing the issues of uneven heating, tempering deformation, color difference, and greening caused by excessively thick or numerous metal and protective layers, or the high infrared reflectivity of silver in the metal layer. This design meets the performance requirements of LOWE coated glass. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a temperable glass according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the structure of a functional layer in a temperable glass according to an embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the structure of a dielectric layer in a temperable glass according to an embodiment of the present invention.

[0032] Figure 4This is a schematic diagram of the structure of temperable glass according to another embodiment of the present invention.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0034] Explanation of icon numbers:

[0035] 100. Tempered glass; 10. Glass substrate; 20. Dielectric layer; 30. Functional layer; 40. Wear-resistant layer

[0036] 21. First dielectric layer; 22. Second dielectric layer; 23. Third dielectric layer; 24. Fourth dielectric layer;

[0037] 31. First functional layer; 32. Second functional layer; 33. Third functional layer;

[0038] 201. Silicon nitride layer; 202. Zinc-aluminum layer;

[0039] 301. Front protective layer; 302. Metal layer; 303. Back protective layer; 304. Transparent conductive layer. Detailed Implementation

[0040] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] In this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0043] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] In this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0046] This invention provides a temperable glass, which includes a glass substrate and a dielectric layer and a metal layer that are alternately stacked on the surface of the glass substrate.

[0047] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of a temperable glass 100 according to an embodiment of the present invention. The temperable glass 100 includes at least four dielectric layers 20 and at least three functional layers 30.

[0048] Reference Figure 2 , Figure 2This is a schematic diagram of the structure of one of the functional layers 30 of this utility model. The functional layer 30 includes a front protective layer 301, a metal layer 302, a rear protective layer 303 and a transparent conductive layer 304 stacked in sequence. The metal layer 302 includes a silver layer or a silver-copper alloy layer, meaning that the temperable glass 100 of this invention is a temperable LOWE glass with a structure of three or more silver layers. Compared with ordinary single and double silver LOWE glass, it has superior heat insulation performance, higher visible light, lower solar near-infrared transmittance, and lower thermal conductivity, which can significantly improve the energy-saving effect of buildings. Moreover, because this invention sets protective layers before and after each metal layer 302, it can prevent the silver, copper, and other materials in the metal layer 302 from being oxidized during the high-temperature tempering process, thus avoiding affecting the optical performance and appearance of the glass. At the same time, by designing the film structure of the glass, the film layer of the glass has good stability before and after tempering, stable color change, and is not prone to defects such as cracking and delamination. It has strong processability and solves the problem of uneven glass heating caused by excessively thick or numerous metal layers and protective layers, and the high reflectivity of silver in the metal layer 302 to the infrared band, which easily leads to quality problems such as tempering deformation, large color difference, and greening. It can meet the performance requirements of LOWE coated glass.

[0049] In some embodiments, temperable glass includes five dielectric layers and four functional layers. This embodiment is a temperable glass containing four silver layers, which has superior thermal insulation performance, higher visible light, lower solar near-infrared transmittance, and lower thermal conductivity, significantly improving the energy-saving effect of buildings. Moreover, because the present invention provides protective layers before and after each metal layer 302, it can prevent the silver, copper, and other materials in the metal layer 302 from being oxidized during the high-temperature tempering process, thus affecting the optical performance and appearance of the glass. At the same time, by designing the film structure of the glass, the film layer of the glass has good stability before and after tempering, stable color change, and is not prone to defects such as cracking and delamination. It has strong processability and solves the quality problems such as uneven glass heating caused by excessively thick or numerous metal layers and protective layers, and high reflectivity of silver in the metal layer 302 to the infrared band, which easily leads to tempering deformation, large color difference, and greening. It can meet the performance requirements of LOWE coated glass.

[0050] In some embodiments, temperable glass includes six dielectric layers and five functional layers. This embodiment is temperable glass containing five silver layers, which has superior thermal insulation performance, higher visible light, lower solar near-infrared transmittance, and lower thermal conductivity, significantly improving the energy-saving effect of buildings. Moreover, because the present invention provides protective layers before and after each metal layer 302, it can prevent the silver, copper, and other materials in the metal layer 302 from being oxidized during the high-temperature tempering process, thus affecting the optical performance and appearance of the glass. At the same time, by designing the film structure of the glass, the film layer of the glass has good stability before and after tempering, stable color change, and is not prone to defects such as cracking and delamination. It has strong processability and solves the quality problems such as uneven glass heating caused by excessively thick or numerous metal layers and protective layers, and high reflectivity of silver in the metal layer 302 to the infrared band, which easily leads to tempering deformation, large color difference, and greening. It can meet the performance requirements of LOWE coated glass.

[0051] In some embodiments, temperable glass includes seven dielectric layers and six functional layers. This embodiment is a temperable glass containing six silver layers, which has superior thermal insulation performance, higher visible light, lower solar near-infrared transmittance, and lower thermal conductivity, significantly improving the energy-saving effect of buildings. Moreover, because the present invention provides protective layers before and after each metal layer 302, it can prevent the silver, copper, and other materials in the metal layer 302 from being oxidized during the high-temperature tempering process, thus affecting the optical performance and appearance of the glass. At the same time, by designing the film structure of the glass, the film layer of the glass has good stability before and after tempering, stable color change, and is not prone to defects such as cracking and delamination. It has strong processability and solves the quality problems caused by uneven glass heating due to excessive thickness or number of metal layers and protective layers, and high reflectivity of silver in the metal layer 302 to the infrared band, which easily leads to tempering deformation, large color difference, greening, etc., and can meet the performance requirements of LOWE coated glass.

[0052] In some embodiments, the front protective layer 301 in the functional layer 30 is a tantalum layer or a tantalum alloy layer. The tantalum layer and the tantalum alloy layer have advantages such as excellent chemical stability, high temperature mechanical properties and corrosion resistance, and can protect elements such as silver and copper in the glass.

[0053] In some embodiments, the back protective layer 303 in the functional layer 30 is a tantalum layer or a tantalum alloy layer. The tantalum layer and the tantalum alloy layer have advantages such as excellent chemical stability, high temperature mechanical properties and corrosion resistance, and can protect elements such as silver and copper in the glass.

[0054] In some embodiments, the front protective layer 301 and the rear protective layer 303 in the functional layer 30 are both tantalum layers or tantalum alloy layers, which can effectively protect the silver and copper in the functional layer 302. This solves the problem of uneven glass heating caused by excessive or thick metal functional layers 302 and protective layers, and the high reflectivity of silver and copper in them to the infrared band, which can easily lead to quality problems such as tempering deformation, large color difference, and greening.

[0055] In some embodiments, the front protective layer 301 is a tantalum alloy layer, which may be a tantalum-copper alloy layer, a tantalum-niobium alloy layer, a tantalum-titanium alloy layer, or a tantalum-nickel-chromium alloy layer. These tantalum alloy layers possess excellent chemical stability, high-temperature mechanical properties, and corrosion resistance, and can protect elements such as silver and copper in the glass. It is understood that a tantalum-copper alloy layer refers to a composite layer prepared by mixing tantalum and copper metals; a tantalum-niobium alloy layer refers to a composite layer prepared by mixing tantalum and niobium metals; a tantalum-titanium alloy layer refers to a composite layer prepared by mixing tantalum and titanium metals; and a tantalum-nickel-chromium alloy layer refers to a composite layer prepared by mixing tantalum, nickel, and chromium metals.

[0056] In some embodiments, the back protective layer 303 is a tantalum alloy layer, which may be a tantalum-copper alloy layer, a tantalum-niobium alloy layer, a tantalum-titanium alloy layer, or a tantalum-nickel-chromium alloy layer. These tantalum alloy layers possess advantages such as beneficial chemical stability, high-temperature mechanical properties, and corrosion resistance, and can protect elements such as silver and copper in the glass. It is understood that a tantalum-copper alloy layer refers to a composite layer prepared by mixing tantalum and copper metals; a tantalum-niobium alloy layer refers to a composite layer prepared by mixing tantalum and niobium metals; a tantalum-titanium alloy layer refers to a composite layer prepared by mixing tantalum and titanium metals; and a tantalum-nickel-chromium alloy layer refers to a composite layer prepared by mixing tantalum, nickel, and chromium metals.

[0057] In some embodiments, the transparent conductive layer 304 is an AZO layer, where AZO stands for aluminum-doped zinc oxide, and the AZO layer can be understood as a film layer prepared from aluminum-doped zinc oxide.

[0058] In some embodiments, refer to Figure 3 The dielectric layer 20 consists of a silicon nitride layer 201 and a zinc-aluminum layer 202 stacked sequentially. It can be understood that the zinc-aluminum layer 202 refers to a composite layer prepared by mixing zinc metal and aluminum metal.

[0059] In some embodiments, the thickness of the glass substrate 10 in the temperable glass 100 is 5mm to 12mm, and can be 5mm, 7mm, 10mm, 12mm, etc.

[0060] In some embodiments, the thickness of the dielectric layer 20 in the temperable glass 100 is 15nm to 70nm, and can be 15nm, 20nm, 25nm, 30nm, 40nm, 45nm, 50nm, 55nm, 60nm, 65nm, 70nm, etc.

[0061] In some embodiments, the thickness of the functional layer 30 in the temperable glass 100 is 8.5nm to 45nm, and can be 8.5nm, 10nm, 12nm, 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm, etc.

[0062] In some embodiments, the thickness of the metal layer 302 in the temperable glass 100 is 2nm to 20nm, and can be 2nm, 5nm, 10nm, 15nm, 20nm, etc.

[0063] In some embodiments, the thickness of the front protective layer 301 in the temperable glass 100 is 1nm to 10nm, and can be 1nm, 2nm, 5nm, 7nm, 8nm, 9nm, 10nm, etc.

[0064] In some embodiments, the thickness of the back protective layer 303 in the temperable glass 100 is 0.5nm to 5nm, and can be 0.5nm, 1nm, 2nm, 3nm, 4nm, 5nm, etc.

[0065] In some embodiments, the thickness of the transparent conductive layer 304 in the temperable glass 100 is 5nm to 10nm, and can be 5nm, 6nm, 7nm, 8nm, 9nm, 10nm, etc.

[0066] In some embodiments, refer to Figure 1 and Figure 4 The temperable glass 100 includes a glass substrate 10 and a first dielectric layer 21, a first functional layer 31, a second dielectric layer 22, a second functional layer 32, a third dielectric layer 23, a third metal layer 33, and a fourth dielectric layer 24 that are alternately stacked on the surface of the glass substrate 10. The temperable glass 100 of this utility model has a structure of more than three silver layers. Compared with single and double silver LOWE glass, it has better heat insulation performance, higher visible light, lower solar near-infrared transmittance, and lower thermal conductivity, which can significantly improve the energy-saving effect of buildings.

[0067] In some embodiments, the first functional layer 31 includes a first front protective layer, a first metal layer, a first rear protective layer, and a first transparent conductive layer stacked sequentially. By adjusting the structure of the first functional layer 31, this invention can prevent the oxidation of materials such as silver and copper in the metal layer during the high-temperature tempering process, which would affect the optical performance and appearance of the glass. It also solves the quality problems caused by uneven glass heating due to excessively thick or numerous metal layers, resulting in high infrared reflection of silver in the metal layer, which easily leads to tempering deformation, large color differences, and greening.

[0068] In some embodiments, the second functional layer 32 includes a second front protective layer, a second metal layer, a second rear protective layer, and a second transparent conductive layer stacked sequentially. By adjusting the structure of the second functional layer 32, this invention can prevent the oxidation of materials such as silver and copper in the metal layer during the high-temperature tempering process, which affects the optical performance and appearance of the glass. It also solves the quality problems caused by uneven glass heating due to excessively thick or numerous metal layers, resulting in high infrared reflection of silver in the metal layer, which easily leads to tempering deformation, large color differences, and greening.

[0069] In some embodiments, the third metal layer 33 includes a third front protective layer, a third metal layer, a third rear protective layer, and a third transparent conductive layer stacked sequentially. By adjusting the structure of the third functional layer 33, this invention can prevent the oxidation of materials such as silver and copper in the metal layer during the high-temperature tempering process, which affects the optical performance and appearance of the glass. It also solves the quality problems caused by uneven glass heating due to excessively thick or numerous metal layers, resulting in high infrared reflection of silver in the metal layer, which easily leads to tempering deformation, large color differences, and greening.

[0070] In some embodiments, refer to Figure 4 The temperable glass 100 also includes a wear-resistant layer 40, which improves the mechanical properties and corrosion resistance of the temperable glass 100.

[0071] In some embodiments, the wear-resistant layer 40 includes a zirconium oxide layer.

[0072] In some embodiments, the thickness of the wear-resistant layer 40 is 5nm to 15nm, and can be 5nm, 8nm, 10nm, 12nm, 13nm, 14nm, 15nm, etc.

[0073] In some embodiments, the temperable glass 100 includes a glass substrate 10 and a first silicon nitride layer, a first zinc-aluminum layer, a first tantalum-nickel-chromium alloy layer, a first metal layer, a first tantalum alloy layer, a first AZO layer, a second silicon nitride layer, a second zinc-aluminum layer, a second tantalum-nickel-chromium alloy layer, a second metal layer, a second tantalum alloy layer, a second AZO layer, a third silicon nitride layer, a third zinc-aluminum layer, a third tantalum-nickel-chromium alloy layer, a third metal layer, a third tantalum alloy layer, a third AZO layer, a fourth silicon nitride layer, a fourth zinc-aluminum layer, and a zirconium oxide layer, which are sequentially stacked on the surface of the glass substrate 10.

[0074] In this invention, a dielectric layer 20, a functional layer 30, a wear-resistant layer 40, etc., can be sequentially prepared on the surface of a glass substrate 10 using magnetron sputtering.

[0075] In some embodiments, when preparing the dielectric layer 20, a rotating cathode can be equipped with a medium-frequency power supply, with the power set between 30KW and 70KW.

[0076] In some embodiments, when preparing the front protective layer 301 and the rear protective layer 303 of the functional layer 30, a planar cathode can be selected and equipped with a pulse power supply with a power of 0.5KW to 30KW.

[0077] In some embodiments, when fabricating the metal layer of the functional layer 30, a planar cathode can be selected and equipped with a pulse power supply, with the power set to 0.5KW to 30KW.

[0078] In some embodiments, when preparing the transparent conductive layer 304 of the functional layer 30, a rotating cathode equipped with a medium-frequency power supply can be selected, with a power of 10KW to 30KW.

[0079] In some embodiments, during the preparation of the various films described above, the sputtering pressure can be selected as (3.5-4)¹⁰. - 3 MBA process gases argon and oxygen with a purity of over 99.99%, stable sputtering pressure, relatively stable molecular mean free path, and stable target sputtering are all conducive to obtaining a denser film.

[0080] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. It should be understood that the following specific embodiments are only used to explain this utility model and are not intended to limit this utility model.

[0081] Example 1

[0082] The structure of the temperable glass in Example 1 is shown in Table 1.

[0083] Table 1

[0084]

[0085]

[0086] The temperable glass of Example 1 was tempered, and its color values ​​before and after tempering were measured and recorded in Table 2.

[0087] Table 2

[0088] Color value Lg ag bg Lc ac bc Lf af bf T a b steel front 45.53 4.06 -10.83 50.05 1.05 -6.79 50.86 -26.53 5.68 32.16 -3.87 -5.66 Steel 49.25 -1.31 -5.58 51.78 -0.66 -6.97 53.09 -24.66 -2.8 50 -3.42 1.03

[0089] As can be seen from Example 1, the temperable glass prepared has good color stability after tempering and is a gray-toned temperable triple silver glass.

[0090] Example 2

[0091] The structure of the temperable glass in Example 2 is shown in Table 3.

[0092] Table 3

[0093]

[0094]

[0095] The temperable glass of Example 2 was tempered, and its color values ​​before and after tempering were measured and recorded in Table 4.

[0096] Table 4

[0097] Color value Lg ag bg Lc ac bc Lf af bf T a b steel front 34.71 3.57 -13.25 44.6 0.37 -1.62 41.12 -5.14 -6.95 46.85 -1.61 -3.37 Steel 41.21 -0.29 -6.91 49.76 -0.79 0.8 46.86 -3.97 -2.9 61.59 -1.49 0.45

[0098] Example 3

[0099] The structure of the temperable glass in Example 3 is the same as that in Example 1, except that the tantalum-nickel-chromium alloy layer in the first functional layer and the second functional layer is a tantalum-copper alloy layer.

[0100] Example 4

[0101] The structure of the temperable glass in Example 4 is the same as that in Example 1, except that the tantalum nickel-chromium alloy layer in its third functional layer is a tantalum titanium alloy layer.

[0102] Example 5

[0103] The structure of the temperable glass in Example 5 is the same as that in Example 1, except that the tantalum-nickel-chromium alloy layer in its first functional layer is a tantalum layer.

[0104] The temperable glass of Examples 3 to 5 was tempered, and its color values ​​before and after tempering were measured and recorded in Table 4.

[0105] Table 4

[0106]

[0107] As can be seen from Examples 3 to 5, the temperable glass prepared has good color stability after tempering and is a gray-toned temperable triple silver glass.

[0108] In summary, the temperable glass of this invention has at least three functional layers, including a metal layer containing silver, forming a triple-silver temperable LOWE glass. Compared to single- or double-silver temperable LOWE glass, it not only has superior thermal insulation performance and higher visible light emission, but also lower solar near-infrared transmittance and lower thermal conductivity, significantly improving the energy efficiency of buildings. Furthermore, the temperable glass of this invention has protective layers before and after the metal layer, preventing the silver and copper in the metal layer from oxidizing during the high-temperature tempering process, thus avoiding damage to the glass's optical performance and appearance. Simultaneously, the design of the glass's film structure ensures good stability of the film layer before and after tempering, stable color changes, and reduces the likelihood of cracking, delamination, and other defects. It also exhibits strong processability, solving the problems caused by excessively thick or numerous metal and protective layers, and the high infrared reflectivity of silver in the metal layer, which leads to uneven glass heating, tempering deformation, large color differences, and greening. This design meets the performance requirements of LOWE coated glass.

[0109] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A temperable glass, characterized by, The steelable glass comprises a glass substrate and a medium layer and a functional layer which are alternately and sequentially stacked on the surface of the glass substrate. The steelable glass comprises at least four medium layers and at least three functional layers. The functional layer comprises a front protective layer, a metal layer, a rear protective layer and a transparent conductive layer which are sequentially stacked, and the metal layer comprises a silver layer or a silver-copper alloy layer.

2. The temperable glass according to claim 1, wherein The front protective layer is a tantalum layer or a tantalum alloy layer; and / or the rear protective layer is a tantalum layer or a tantalum alloy layer.

3. The temperable glass according to claim 2, wherein, The front protective layer is a tantalum alloy layer, and the tantalum alloy layer is a tantalum-copper alloy layer, a tantalum-niobium alloy layer, a tantalum-titanium alloy layer or a tantalum-nickel-chromium alloy layer. The rear protective layer is a tantalum alloy layer, and the tantalum alloy layer is a tantalum-copper alloy layer, a tantalum-niobium alloy layer, a tantalum-titanium alloy layer or a tantalum-nickel-chromium alloy layer.

4. The temperable glass of claim 1, wherein, The transparent conductive layer is an AZO layer. The medium layer is a silicon nitride layer and a zinc-aluminum layer which are sequentially stacked.

5. The temperable glass of claim 1, wherein, The thickness of the glass substrate is 5-12 mm. The thickness of the medium layer is 15-70 nm. The thickness of the metal layer is 8.5-45 nm. The thickness of the functional layer is 2-20 nm. The thickness of the front protective layer is 1-10 nm. The thickness of the rear protective layer is 0.5-5 nm. The thickness of the transparent conductive layer is 5-10 nm.

6. The toughenable glass of any of claims 1 to 5, wherein the glass has a thickness of 0.5 mm or less. The steelable glass comprises a glass substrate and a first medium layer, a first functional layer, a second medium layer, a second functional layer, a third medium layer and a third functional layer which are alternately and sequentially stacked on the surface of the glass substrate.

7. The temperable glass according to claim 6, wherein The first functional layer comprises a first front protective layer, a first metal layer, a first rear protective layer and a first transparent conductive layer which are sequentially stacked. The second functional layer comprises a second front protective layer, a second metal layer, a second rear protective layer and a second transparent conductive layer which are sequentially stacked. The third functional layer comprises a third front protective layer, a third functional metal layer, a third rear protective layer and a third transparent conductive layer which are sequentially stacked.

8. The toughenable glass of any of claims 1 to 5, wherein the glass has a thickness of 0.5 mm or less. The steelable glass further comprises a wear-resistant layer.

9. The toughenable glass of claim 8, wherein, The wear-resistant layer comprises a zirconium oxide layer, and the thickness of the wear-resistant layer is 5-15 nm.

10. The temperable glass of claim 1, wherein, The steelable glass comprises a glass substrate and a first silicon nitride layer, a first zinc-aluminum layer, a first tantalum-nickel-chromium alloy layer, a first metal layer, a first tantalum alloy layer, a first AZO layer, a second silicon nitride layer, a second zinc-aluminum layer, a second tantalum-nickel-chromium alloy layer, a second metal layer, a second tantalum alloy layer, a second AZO layer, a third silicon nitride layer, a third zinc-aluminum layer, a third tantalum-nickel-chromium alloy layer, a third metal layer, a third tantalum alloy layer, a third AZO layer, a fourth silicon nitride layer, a fourth zinc-aluminum layer and a zirconium oxide layer which are sequentially stacked on the surface of the glass.

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