Double-sided mirror coated glass capable of being tempered

Abstract

The utility model discloses temperable double-sided mirror coated glass which comprises a glass substrate, a first silicon nitride layer fixedly connected above the glass substrate, a first silicon oxide layer fixedly connected on the outer side of the first silicon nitride layer, a nickel-chromium layer fixedly mounted on the outer side of the first silicon oxide layer, and a second silicon oxide layer fixedly mounted on the outer side of the nickel-chromium layer. The outer side of the nickel-chromium layer is fixedly provided with a second silicon dioxide layer, and the outer side of the second silicon dioxide layer is fixedly provided with a second silicon nitride layer. According to the coated glass disclosed by the utility model, the film layer adopts a sandwich symmetrical film layer structure with matched high and low refractive indexes, and the material and the thickness of the film layer are optimized, so that two surfaces, namely the film surface and the glass surface, of the glass have high reflectivity, a double-sided mirror forming function is realized, the use scene is greatly enriched, and meanwhile, the film layer is resistant to high temperature and can be subjected to toughening treatment; the safety of the glass is effectively improved, the curved surface modeling structure of the glass can be realized, and the production link is pollution-free.

Description

Technical Field

[0001] The utility model relates to the technical field of coated glass, in particular to a tempered double-sided mirror coated glass. Background Art

[0002] Traditional glass mirrors are all silver mirrors. They are made by redox reactions between silver compound solutions, such as silver nitrate and silver ammonia complexes, and aldehyde compounds. The resulting metallic silver adheres to the surface of the glass, and then a protective paint is sprayed on the surface of the silver layer and dried to form a silver mirror.

[0003] Traditional mirrors can only be made on one side and cannot be tempered. Therefore, the mirrors are easily damaged, have low safety performance, and cannot achieve curved surface structures. The production process involves a chemical reaction process, which easily causes environmental pollution and is not environmentally friendly. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art, such as: only one-sided mirror can be formed, it cannot be tempered, so the mirror is easily damaged, the safety performance is low, the curved surface structure cannot be realized, the production process is a chemical reaction process, which easily causes environmental pollution and is not environmentally friendly, and a temperable double-sided mirror coated glass is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A temperable double-sided mirror coated glass, comprising:

[0007] A glass substrate, wherein a first silicon nitride layer is fixedly connected to the top of the glass substrate, a first silicon oxide layer is fixedly connected to the outside of the first silicon nitride layer, a nickel-chromium layer is fixedly installed on the outside of the first silicon oxide layer, a second silicon oxide layer is fixedly installed on the outside of the nickel-chromium layer, and a second silicon nitride layer is fixedly installed on the outside of the second silicon oxide layer.

[0008] Preferably, the thickness of the first silicon nitride layer is 50-60 nm.

[0009] Preferably, the thickness of the first silicon oxide layer is 70-80 nm.

[0010] Preferably, the thickness of the nickel-chromium layer is 60-70 nm.

[0011] Preferably, the thickness of the second silicon oxide layer is 70-80 nm.

[0012] Preferably, the second silicon nitride layer has a thickness of 50-60 nm.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model adopts vacuum magnetron sputtering physical coating method, the film layer is resistant to high temperature and can be tempered, which effectively increases the safety of the glass;

[0015] The technology adopted by the utility model enables the glass to be tempered, and in the tempering process, bending and curved tempering can be achieved, so that a curved glass structure can be achieved;

[0016] The utility model adopts a vacuum magnetron sputtering physical coating method, which belongs to physical deposition of thin films and has no pollution in the production process;

[0017] To sum up, the coated glass of the present invention adopts a combination of high and low refractive index for the film layer, a sandwich symmetrical film layer structure, and optimizes the film layer material and thickness, so that both sides of the glass, namely the film surface and the glass surface, have high reflectivity, realizing a double-sided mirroring function, which greatly enriches the usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a tempered double-sided mirror coated glass proposed in the utility model.

[0019] In the figure: 1 glass substrate, 2 first silicon nitride layer, 3 first silicon oxide layer, 4 nickel-chromium layer, 5 second silicon oxide layer, 6 second silicon nitride layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1 , a temperable double-sided mirror coated glass, comprising:

[0022] A glass substrate 1, a first silicon nitride layer 2 fixedly connected to the top of the glass substrate 1, a first silicon oxide layer 3 fixedly connected to the outside of the first silicon nitride layer 2, a nickel-chromium layer 4 fixedly mounted on the outside of the first silicon oxide layer 3, a second silicon oxide layer 5 fixedly mounted on the outside of the nickel-chromium layer 4, and a second silicon nitride layer 6 fixedly mounted on the outside of the second silicon oxide layer 5;

[0023] Silicon nitride has high hardness, inherent lubricity, and is wear-resistant. It is an atomic crystal, resistant to oxidation at high temperatures, and can also withstand thermal shock. Therefore, the first silicon nitride layer 2 and the second silicon nitride layer 6 can improve the strength of the glass substrate 1 and enhance the wear resistance and other properties of the glass substrate 1;

[0024] The nickel-chromium layer 4 has excellent corrosion resistance and can maintain good stability in various environments, especially in acidic and alkaline environments. In addition, the nickel-chromium layer also has excellent heat resistance and chemical corrosion resistance, and can maintain its performance in high temperature and chemical corrosion environments.

[0025] Silicon oxide has high hardness and a high melting point, and is extremely chemically stable and almost unreactive with other chemicals, making it an ideal mask material. Therefore, the first silicon oxide layer 3 and the second silicon oxide layer 5 can effectively form a protective layer.

[0026] The thickness of the first silicon nitride layer 2 is 50-60 nm; the thickness of the first silicon oxide layer 3 is 70-80 nm; the thickness of the nickel-chromium layer 4 is 60-70 nm; the thickness of the second silicon oxide layer 5 is 70-80 nm; and the thickness of the second silicon nitride layer 6 is 50-60 nm.

[0027] In the present invention, a glass substrate 1 is composited with an outer first silicon nitride layer 2, a first silicon oxide layer 3, a nickel-chromium layer 4, a second silicon oxide layer 5, and a second silicon nitride layer 6. After being subjected to a bending and tempering process at 720°C in a tempering furnace, the film layer does not peel off or leak light, the film surface reflection brightness L* is 93, the glass surface reflection brightness L* is 91, and both sides present a mirror effect. After tempering, the glass surface stress is 95 MPa, and the fragment particle size is 52 particles, which fully meets the requirements of GB15763.2-2005 "Tempered Glass" and GB18915 "Coated Glass" standards.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A temperable double-sided mirror coated glass, characterized in that: include: A glass substrate (1) is provided, wherein a first silicon nitride layer (2) is fixedly connected to the top of the glass substrate (1), a first silicon oxide layer (3) is fixedly connected to the outside of the first silicon nitride layer (2), a nickel-chromium layer (4) is fixedly installed to the outside of the first silicon oxide layer (3), a second silicon oxide layer (5) is fixedly installed to the outside of the nickel-chromium layer (4), and a second silicon nitride layer (6) is fixedly installed to the outside of the second silicon oxide layer (5).

2. The temperable double-sided mirror coated glass according to claim 1, characterized in that: The thickness of the first silicon nitride layer (2) is 50-60 nm.

3. The temperable double-sided mirror coated glass according to claim 1, characterized in that: The thickness of the first silicon oxide layer (3) is 70-80 nm.

4. The temperable double-sided mirror coated glass according to claim 1, characterized in that: The thickness of the nickel-chromium layer (4) is 60-70 nm.

5. The temperable double-sided mirror coated glass according to claim 1, characterized in that: The thickness of the second silicon oxide layer (5) is 70-80 nm.

6. The temperable double-sided mirror coated glass according to claim 1, characterized in that: The second silicon nitride layer (6) has a thickness of 50-60 nm.

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