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Composition for glass, aluminosilicate glass and preparation method and application thereof

A technology of aluminosilicate glass and composition, which is applied in the field of glass manufacturing, can solve the problems of difficult glass melting and forming, large plate forming, and easy bending, etc., and achieves the effect of high glass yield guarantee and glass thermal conductivity optimization

Active Publication Date: 2022-08-02
DONGXU OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of existing aluminosilicate glass such as difficult glass melting and forming, large plate forming, and easy bending during production, and to provide a composition for glass, aluminosilicate glass and its The preparation method and application, the aluminosilicate glass reduces the difficulty of melting and forming, and realizes the controllable glass thinning and forming and the bending degree of the glass after thinning

Method used

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  • Composition for glass, aluminosilicate glass and preparation method and application thereof
  • Composition for glass, aluminosilicate glass and preparation method and application thereof

Examples

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preparation example Construction

[0055] There is no special requirement for the preparation method of the above-mentioned aluminosilicate glass, for example, it can be as follows: the various raw materials of the above-mentioned glass composition are fully mixed uniformly, and the temperature is kept in a platinum-rhodium crucible at 1630-1680 ° C for 7-24 hours, during which time Stir with a platinum rod to remove air bubbles and to clarify and homogenize the glass. Then, the molten glass is cast on a stainless steel mold to form, and annealed at a temperature of 800° C. and then mechanically processed to obtain aluminosilicate glass.

[0056] The mechanical processing is not particularly limited, and various mechanical processing methods commonly used in the art can be used, for example, cutting, grinding, polishing, and the like can be performed on the product obtained by the annealing treatment.

[0057] In a third aspect, the present invention provides the aluminosilicate glass prepared by the above meth...

Embodiment

[0071] Specific embodiments of the present invention will be described in detail below. It should be understood that the materials according to the present invention described herein can be obtained commercially, and unless otherwise specified, the methods used are conventional methods in the art. The embodiments are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0072] According to the present invention, the compositions of the glass compositions in the Examples and Comparative Examples and the respective measurement results are shown in Tables 1-3. In addition, the glasses in Examples and Comparative Examples were prepared by the following methods.

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Abstract

The invention relates to the field of glass manufacturing, and discloses a glass composition, aluminosilicate glass and a preparation method and application thereof. Based on the total weight of the composition for glass, in terms of oxides, the composition for glass contains 58-64 wt % of SiO 2 , 18-23wt% Al 2 O 3 , 0‑1.6wt% B 2 O 3 , 0.001‑0.3wt% ZrO 2 , 0.0005-1.8wt% of metal oxide M and 12-24wt% of metal oxide N; the metal oxide M is selected from BeO, Sc 2 O 3 and Y 2 O 3 One or more of, the metal oxide N is selected from one or more of MgO, CaO and SrO. The aluminosilicate glass provided by the invention controls the frit properties and forming stability within a narrow range, which is beneficial to the production control of large-scale and light-thin glass plates, and at the same time, it is beneficial to the control of the bending degree of the glass after annealing, so that the High glass yield is guaranteed.

Description

technical field [0001] The invention relates to the field of glass manufacturing, in particular to a glass composition, aluminosilicate glass and a preparation method and application thereof. Background technique [0002] In the development process of the display industry, low temperature polysilicon (LTPS, Low Temperature Poly-Silicon) technology enables display products to have higher resolution, faster response speed, thinner shape, and larger display area. [0003] During the manufacturing process of the display panel, the substrate glass is more likely to be deformed and warped by heat treatment, resulting in defective products. Therefore, the substrate glass is required to have the characteristics of high temperature resistance, low thermal shrinkage and stable high temperature process. In order to achieve this purpose, the existing substrate glass mostly adopts high-alumina and low-borosilicate glass that does not contain alkali substantially. The high-alumina and low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/11
CPCC03C3/11
Inventor 李青李赫然李刚胡恒广张广涛闫冬成
Owner DONGXU OPTOELECTRONICS TECH CO LTD