High strength aluminosilicate glass and chemically toughening process thereof

An aluminosilicate glass, chemical tempering technology, applied in the direction of glass tempering, glass manufacturing equipment, manufacturing tools, etc., can solve the problems affecting the service life of the whole machine and the screen display effect, roughness, damaged surface of the display screen, etc. The mechanical strength is enhanced, the flexural strength is improved, and the effect of safe use is satisfied

Active Publication Date: 2009-01-07
SUZHOU SHINWU OPTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, touch screens, PDAs, and mobile phones often have dangerous operations such as writing, scratching, and impacting on the display screen with fingers, electronic pens, signature pens, and ev

Method used

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  • High strength aluminosilicate glass and chemically toughening process thereof
  • High strength aluminosilicate glass and chemically toughening process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0082] Refer to Example 2 in Table 1 for the actual composition of the glass, use the same raw materials and raw material requirements as in Example 1, mix according to the glass composition of Example 2, and then use a platinum crucible to melt at 1600 ° C for 24 hours. After melting, the melt is hydraulically formed into a specified plate glass product, then annealed, ground and polished to make a glass sample, which is divided into two groups, one group is not chemically strengthened, and the other group is chemically tempered Treatment, the chemical strengthening temperature is 460°C, and the chemical strengthening time is 6 hours. The basic properties of the samples are shown in Table 1. In terms of performance, there is almost no difference in apparent density, expansion coefficient, refractive index, transmittance, and glass characteristic viscosity point before and after chemical strengthening treatment. However, in terms of mechanical strength, there is a big differe...

Embodiment 3

[0084] For the actual composition of the glass, refer to Example 3 in Table 1, use the same raw materials as in Example 1, mix according to the glass composition of Example 3, and then use a platinum crucible to melt at 1670°C for 24 hours. After melting, the melt is hydraulically formed into a specified plate glass product, and then annealed, ground and polished to make glass samples. The samples are divided into two groups, one group without chemical strengthening treatment, and one group with chemical strengthening treatment. Chemical tempering treatment, chemical strengthening temperature 430°C, chemical strengthening time 8 hours. The basic properties of the samples are shown in Table 1. In terms of performance, there is almost no difference in apparent density, expansion coefficient, refractive index, transmittance, and glass characteristic viscosity point before and after chemical strengthening treatment. However, in terms of mechanical strength, there is a big differe...

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Abstract

The invention relates to a high-strength aluminate silicate glass and a chemical toughening method thereof, and belongs to the silicate glass field. The glass comprises the following chemical components (weight percent): 55 to 65 weight percent of SiO2, 0.1 to 3 weight percent of B2O3, 6 to 24 weight percent of Al2O3, 3 to 9 weight percent of MgO plus CaO plus BaO plus SrO, 0 to 1 weight percent of ZrO2, 0 to 2 weight percent of ZnO, 0.1 to 0.5 weight percent of Cl2, 0.1 to 1.0 weight percent of Sb2O3, 0.1 to 0.5 weight percent of SO3 and 0.1 to 0.5 weight percent of F2, and belongs to a aluminate silicate glass system. The high-strength aluminate silicate glass is prepared through a known plate glass production method, and then is subjected to the strengthening treatment by adopting the chemical toughening method. The glass has high permeability of visible light, and relatively common soda lime glass, neutral medicine glass and alkali-free high-aluminum glass have good shock resistance property, high scratch resistance property and high durability. The high-strength aluminate silicate glass is applied to the screen surface protection of plasma display products and liquid crystal display products, the protection of touch screens, the screen protection of automated teller machines, and the screen protection of other electronic products (Mobile phones, PDAs and media machines, etc.), thereby effectively preventing the impact and the scratch damage to the glass surface of display products. The high-strength aluminate silicate glass contains no harmful elements.

Description

technical field [0001] The invention relates to glass materials for screen surface protection of electronic display products (plasma display products and liquid crystal display products), glass materials for fireproof and anti-theft doors of buildings, and high-strength glass materials for cash collection windows of banks and hospitals. It can be used in plasma TV, LCD TV, LCD monitor, notebook LCD monitor, cash machine protection screen, touch screen, mobile phone, PDA, PSP, information inquiry machine, media advertising player, and can effectively prevent the impact and scratch on the surface of the display product screen damage, prolong the service life and use effect, and ensure the safety of buildings and cash register systems. Background technique [0002] With the development of modern technology, electronic display products have developed rapidly in the past 10 years, and advanced flat panel display products have emerged in an endless stream, such as plasma display p...

Claims

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Application Information

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IPC IPC(8): C03C3/118C03B27/03
Inventor 吴哲田英良沈雪红
Owner SUZHOU SHINWU OPTRONICS TECH
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