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A kind of glass composition and glass and its preparation method and application

A composition and glass technology, which is applied in the input/output process of instruments, data processing, calculation, etc., can solve the problems of anti-fluorescent stimulation, anti-scratch and wear-resistant performance, etc.

Active Publication Date: 2019-04-19
DONGXU OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The thermal expansion coefficient, hardness, strength, anti-fluorescent stimulation, scratch resistance and abrasion resistance of the currently produced glass cannot meet the needs of cover glass

Method used

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  • A kind of glass composition and glass and its preparation method and application
  • A kind of glass composition and glass and its preparation method and application
  • A kind of glass composition and glass and its preparation method and application

Examples

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preparation example Construction

[0045] In a second aspect, the present invention provides a glass preparation method, the method comprising: sequentially mixing, melting, homogenizing, casting and annealing the above composition for glass.

[0046] According to the method of the present invention, the melting can be carried out in a platinum-rhodium crucible. Preferably, the melting conditions include: the temperature is 1450-1580° C., and the time is 4-10 hours. Those skilled in the art can determine the specific melting temperature and melting time according to the actual situation, which are well known to those skilled in the art, and will not be repeated here.

[0047] According to the method of the present invention, the homogenization is a conventional homogenization method in the art, for example, the gas bubbles in the molten glass can escape by stirring and the components in the molten glass are evenly distributed.

[0048] According to the method of the present invention, the pouring molding is a c...

Embodiment 1-10 and comparative example 1-2

[0068] Weigh each component as shown in Tables 1 and 2, mix well, pour the mixture into a platinum-rhodium crucible, then heat in a resistance furnace at 1500°C for 6 hours, and stir with a platinum rod to remove air bubbles. The molten glass is poured into a stainless steel cast iron mold to form a specified block glass product, and then the glass product is annealed in an annealing furnace at 600°C for 2 hours, then the power is turned off and the furnace is cooled to 25°C. The glass product is sliced, ground and polished, then cleaned with deionized water and dried to obtain a finished glass product, which is chemically tempered before testing. Various properties of each glass product were measured respectively, and the results are shown in Tables 1 and 2.

[0069] Table 1

[0070]

[0071]

[0072] Table 2

[0073]

[0074]

[0075] By comparing the data in tables 1 and 2, it can be known that the coefficient of expansion of the glass prepared by the present ...

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Abstract

The invention relates to the field of glass manufacturing, in particular, discloses a composition for glass, glass and its preparation method and application, relates to a composition for glass, the composition for glass contains SiO 2 、Al 2 o 3 , CdO, alkali metal oxides and alkaline earth metal oxides. It also relates to a glass and its preparation method and application. The glass prepared by the present invention has higher chemical strengthening performance, higher hardness and strength, higher strain point, and the glass has a larger modulus of elasticity, thereby obtaining a more ideal fracture toughness, which has a great impact on reducing Glass brittleness, improving the impact resistance of glass is of great help. In addition, the cover glass is not easy to devitrify and easy to vitrify, which is suitable for process production requirements. It has good heat resistance, impact resistance, excellent scratch resistance and resistance Grinding performance, can effectively prevent impact and scratch damage on the glass surface of display products, and is more suitable as cover glass.

Description

technical field [0001] The invention relates to the field of glass manufacturing, in particular to a composition for glass, glass and a preparation method and application thereof. Background technique [0002] With the emergence and upgrading of capacitive touch screen mobile phones, tablet computers, digital cameras, various query terminals, ATM machines, VOD machines, large-screen touch electronic whiteboards, etc., the penetration rate of touch functions in consumer electronics products continues to increase. This has greatly promoted the market demand for touch screen surface cover glass. [0003] According to the needs of consumers, cover glass is gradually developing towards better quality. Its high quality is mainly reflected in the aspects of large surface stress, appropriate depth of stress layer, heat resistance, thermal shock resistance, good toughness, brittleness and low impact resistance, and light and thin suitable for large size. At present, the research pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/085C03C3/087G06F3/041
CPCC03C3/085C03C3/087G06F3/041G06F2203/04103
Inventor 沈玉国王丽红胡恒广闫冬成李俊锋张广涛
Owner DONGXU OPTOELECTRONICS TECH CO LTD
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