Composition for glass, aluminosilicate glass, as well as preparation method and application of the aluminosilicate glass

Abstract

The invention relates to the field of glass manufacturing, and discloses a composition for glass, aluminosilicate glass, as well as a preparation method and application of the aluminosilicate glass. The composition includes, on the basis of the total weight (based on oxides): 58 to 64 weight percent of SiO2, 18 to 23 weight percent of Al2O3, 0 to 1.6 weight percent of B2O3, 0.001 to 0.3 weight percent of ZrO2, 0.0005 to 1.8 weight percent of metal oxide M and 12 to 24 weight percent of metal oxide N, wherein the metal oxide M is selected from one or more of BeO, Sc2O3 and Y2O3, and the metal oxide N is selected from one or more of MgO, CaO and SrO. According to the aluminosilicate glass provided by the invention, the frit property and the forming stability are controlled within a narrow limited range, so that large-scale, light and thin production control of the glass plate is facilitated, and meanwhile, the control on the curvature of the annealed glass is facilitated, so that the high yield of the glass is guaranteed.

Description

technical field [0001] The invention relates to the field of glass manufacturing, in particular to a composition for glass, 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 and thinner appearance, and larger display area. [0003] During the manufacturing process of display panels, 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 high temperature process stability. In order to achieve this goal, most of the existing substrate glasses use high-alumina-low-borosilicate glass that does not contain alkali substantially. The high-...

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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

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