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Anti-blue-light high-strength lithium-aluminum-silicon cover plate glass and preparation method and application thereof

A cover glass, high-strength technology, used in glass manufacturing equipment, glass molding, glass tempering and other directions, can solve the problems of insufficient glass strength, no anti-blue light, etc., and achieve the effect of preventing impact or scratch damage

Pending Publication Date: 2021-07-16
CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the objectives of the present invention is to provide an anti-blue light high-strength lithium-aluminum-silicon cover glass and its preparation method, which solves the problem that the current glass is not strong enough and does not have anti-blue light

Method used

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  • Anti-blue-light high-strength lithium-aluminum-silicon cover plate glass and preparation method and application thereof
  • Anti-blue-light high-strength lithium-aluminum-silicon cover plate glass and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The invention discloses a preparation method of a high-strength lithium-aluminum-silicon cover glass for preventing blue light, which specifically includes the following steps:

[0043] (1) Weighing: in mass percentage, according to SiO 2 70%, Al 2 o 3 18%, Li 2 O 2%, Na 2 O 6%, B 2 o 3 0.79%, MgO 1%, ZnO 0.5%, ZrO 2 1%, CdS 0.05%, CdSe 0.05%, SnO 2 0.6%, carbon powder 0.01% proportion weighing;

[0044] (2) Mixing: After the above-mentioned raw materials are accurately weighed according to the weight ratio, fully mix with a mixer to form a batch;

[0045] (3) Melting: first raise the temperature of the muffle furnace to 1300°C, then add the obtained batch material into a platinum crucible with a platinum cover, then put it into the muffle furnace and raise the temperature to 1680°C for 6 hours to obtain molten glass;

[0046] (4) Annealing: pour the molten glass into a mold on a stainless steel plate, and place it in an annealing furnace for annealing afte...

Embodiment 2

[0051] The invention discloses a preparation method of a high-strength lithium-aluminum-silicon cover glass for preventing blue light, which specifically includes the following steps:

[0052] (1) Weighing: in mass percentage, according to SiO 2 56%, Al 2 o 3 23%, Li 2 O 4%, Na 2 O 6%, K 2 O0.5%, MgO 1.5%, ZnO 2%, ZrO 2 3%, CdS 1%, CdSe 1%, SnO 2 1%, potassium tartrate 1% proportion weighing;

[0053] (2) Mixing: After the above-mentioned raw materials are accurately weighed according to the weight ratio, fully mix with a mixer to form a batch;

[0054] (3) Melting: first raise the temperature of the muffle furnace to 900°C, then add the obtained batch material into a platinum crucible with a platinum cover, then put it into the muffle furnace and raise the temperature to 1500°C for 4 hours to obtain molten glass;

[0055] (4) Annealing: pour the molten glass into a mold on a stainless steel plate, and place it in an annealing furnace for annealing after the glass ...

Embodiment 3

[0060] The steps are the same as in Example 1, and the parameters used therein refer to the data in the table, as shown in Table 1. The reducing agent adopts long-chain aliphatic amine.

[0061] The first chemically strengthened molten salt was 60% NaNO 3 and 40% KNO 3 The composition of the proportioned salt, the strengthening temperature is 430°C, and the strengthening time is 240min; the molten salt for the second chemical strengthening is 95% KNO 3 and 5% NaNO 3 , the strengthening temperature is 430°C, and the strengthening time is 30min.

[0062] The steps of other embodiments are the same as those of Embodiment 1, and the parameters used therein refer to the data in the table, as shown in Table 1.

[0063] Table 1

[0064]

[0065]

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Abstract

The invention relates to the technical field of cover plate glass, in particular to anti-blue-light high-strength lithium-aluminum-silicon cover plate glass which is prepared from the following raw materials in percentage by mass: 56%-70% of SiO2, 18%-23% of Al2O3, 2%-4% of Li2O, 6%-15% of Na2O, 1%-10% of MgO, 0.5%-6% of ZnO, 1%-5% of ZrO2, 0.05%-3% of CdS, 0.05%-2% of CdSe, 0.6%-1.5% of SnO2, 0-8% of K2O, 0-5% of B2O3 and 0.01%-1% of a reducing agent. The invention further discloses a preparation method of the anti-blue-light high-strength lithium-aluminum-silicon glass, the anti-blue-light high-strength lithium-aluminum-silicon glass is prepared through mixing, founding, annealing, secondary developing treatment and then composite chemical strengthening, and the anti-blue-light high-strength lithium-aluminum-silicon glass has an anti-blue-light effect, is suitable for being used as a screen protection material of electronic equipment such as a mobile phone and can effectively prevent the surface of a panel display product from being impacted or scratched and damaged.

Description

technical field [0001] The invention relates to the technical field of cover glass, in particular to an anti-blue light high-strength lithium-aluminum-silicon cover glass and its preparation method and application. Background technique [0002] With the continuous improvement of terminal product performance requirements, 3D and 3.5D glass processing technologies are approaching maturity, and the demand for high-end cover glass with strong drop resistance in the terminal market is increasing. In addition, consumers' expectations and demands for 5G mobile phones , the market demand for higher strength glass will increase significantly in the future. At the same time, with the rapid development of modern technology, the use of various electronic screens in life has added a lot of glory to people's lives. However, when human eyes stare at TV, tablet, and mobile phone screens for a long time, they will feel tired and sore. The reason is that There is too much short-wave blue lig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/093C03B19/02C03B25/00C03B27/03G09F9/30
CPCC03C3/093C03B19/02C03B25/00C03B27/03G09F9/30
Inventor 牛桃霞仵小曦薛新建杨露彭利欢
Owner CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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