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High-strength and low-brittleness aluminosilicate glass as well as strengthening method and application thereof

An aluminosilicate glass, low brittleness technology, applied in the field of aluminosilicate glass preparation, can solve the problems of poor resistance to external impact and scratch resistance, inability to meet high strength, high hardness and low hardness, and achieve improved melting properties, improve chemical stability, and reduce the effect of thermal expansion coefficient

Inactive Publication Date: 2020-11-27
CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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Problems solved by technology

[0003] Due to the poor resistance to external impact and scratch resistance of these electronic display devices, the screen surface of these electronic display devices urgently needs a transparent aluminosilicate glass material with high strength, high hardness and low brittleness.
But traditional soda-lime glass cannot meet the requirements of high strength, high hardness and low brittleness

Method used

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  • High-strength and low-brittleness aluminosilicate glass as well as strengthening method and application thereof
  • High-strength and low-brittleness aluminosilicate glass as well as strengthening method and application thereof
  • High-strength and low-brittleness aluminosilicate glass as well as strengthening method and application thereof

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0032] The daily use of glass products usually requires glass to have high strength, and the strength of glass is essentially determined by the system and composition. Adding B to the glass composition 2 o 3 and ZrO 2 , By adjusting the composition of the glass, aluminosilicate glass with high strength and low brittleness can be obtained. The method of chemical strengthening can further improve the strength of glass. Chemical strengthening is realized by ion exchange process in a low temperature environment. Compressive stress and a compressive stress layer with a certain depth are formed on the surface of the glass, which can further prevent the expansion of micro-cracks, thereby Further obtain high-strength, low-brittle aluminosilicate glass.

[0033] The present invention is a high-stre...

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Abstract

The invention provides high-strength and low-brittleness aluminosilicate glass as well as a strengthening method and an application thereof. The glass is prepared from the following components in percentage by mole; 56%-70% of SiO2, 8%-25% of Al2O3, 1%-10% of B2O3, 0-15% of Li2O, 6%-20% of Na2O, 0-10% of K2O, 0-5% of MgO, 1%-5% of ZrO2 and 0.1%-1% of SnO2. The strengthening method comprises the following steps: preparing raw materials according to the components of the glass, melting and clarifying the raw materials, and forming the glass; and carrying out ion exchange on the glass in a salt bath of potassium nitrate and sodium nitrate at 360-450 DEG C to obtain the chemically strengthened aluminosilicate glass which can be applied to mobile device protection and fixed device protection.

Description

technical field [0001] The invention relates to the technical field of aluminosilicate glass preparation, in particular to a high-strength, low-brittle aluminosilicate glass and its strengthening method and application. Background technique [0002] With the rapid development of modern display technology, glass products are becoming more and more popular in electronic devices as covers for portable or handheld electronic communication devices, such as mobile phones, tablets, liquid crystal display devices, etc., and glass is a brittle material. In daily life, these electronic display devices are affected by various harsh environments, such as scratches and breakages. [0003] Since the current electronic display devices have poor resistance to external impact and scratch resistance, a transparent aluminosilicate glass material with high strength, high hardness and low brittleness is urgently needed for the screen surface of these electronic display devices. But traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/093C03C21/00
CPCC03C3/093C03C21/002
Inventor 杨露王志安彭引平仵小曦冯勃
Owner CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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