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High-strength touch screen glass component suitable for chemical tempering

A chemical toughening and high-strength technology, which is applied in the field of high-strength touch screen glass components, can solve the problems of unfavorable glass chemical toughening and glass surface stress relaxation, so as to improve chemical stability and mechanical strength, reduce expansion coefficient, and improve strengthening strength Effect

Active Publication Date: 2012-07-11
CHONGQING XINJING SPECIAL GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, some divalent ions with large ionic radii, such as calcium oxide, strontium oxide, and barium oxide, are helpful to increase the strain point of the glass, but after ion exchange for chemical toughening, the stress on the glass surface will be relaxed, which is not conducive to the chemical properties of the glass. Tempering

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0024] Component weight percentage nature SiO 2 67% Expansion coefficient 20~300℃ 87.83 / ℃ Na 2 o 12% softening temperature 781℃ K 2 o 2% strain point 524℃ MgO 3% Strength after chemical tempering 720MPa Al 2 o 3 14% CeO 2 0.3% SnO 2 0.1% ZrO2 0.5% TiO 2 0.4% ZnO 0.7% CaO 0.2%

Embodiment 3

[0026] Component weight percentage nature SiO 2 60% Expansion coefficient 20~300℃ 90.35 / ℃ Na 2 o 12% softening temperature 791℃ K 2 o 5% strain point 532℃ MgO 3% Strength after chemical tempering 723MPa Al 2 o 3 17% CeO 2 0.2% SnO 2 1.0% ZrO 2 0.5% TiO 2 0.8% ZnO 0.2% CaO 0.3%

Embodiment 4

[0028] Component weight percentage nature SiO 2 60% Expansion coefficient 20~300℃ 90.57 / ℃ Na 2 o 14% softening temperature 768℃ K 2 o 2% strain point 525℃ MgO 5% Strength after chemical tempering 712 MPa Al 2 o 3 14% CeO 2 0.1% SnO 2 0.1% ZrO 2 2% TiO 2 0.3% ZnO 2% CaO 0.5%

[0029] General glass comparison

[0030] Component weight percentage nature SiO 2 71.8% Expansion coefficient 20~300℃ 92.27 / ℃ Na 2 o 13.0% softening temperature 731℃ K 2 o 0.9% strain point 506℃ CaO 8.1% Strength after chemical tempering 453MPa MgO 4.4% Al 2 o 3 1.5% Fe 2 o 3 0.07%

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PUM

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Abstract

The invention belongs to the technical field of special glass production and mainly relates to a high-strength touch screen glass component suitable for chemical tempering. The high-strength touch screen glass component comprises the following components in percentage by weight: 60-67 percent of SiO2, 12-14 percent of Na2O, 2.0-5 percent of K2O, 0-0.5 percent of CaO, 3-5 percent of MgO, 14-17 percent of Al2O3, 0-0.3 percent of CeO2, 0.1-1 percent of SnO20, 0.5-2 percent of ZrO2, 0.2-0.8 percent of TiO2 and 0.2-2 percent of ZnO. The high-strength touch screen glass component has the benefits that through improving the content of the Al2O3, improving the chemical stability and the mechanical strength of a glass substrate and commonly using the Zro2 and the Al2O3, the chemical tempering enhancing effect is good; and through adding the Zn2+, Ti2+, Ce4+ and other ions into a network space, a role in accumulating a silicon-oxygen tetrahedron on the periphery is played, so that the compactness of the structure is increased, the expansion coefficient is reduced, and the strain point of glass is improved, and meanwhile, the chemical tempering and enhancing strength of the glass is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of special glass production and manufacturing, and mainly relates to a high-strength touch screen glass component suitable for chemical toughening. The glass component can be produced by a float glass production process and is suitable for strengthening through chemical toughening. After chemical tempering, the glass is suitable for cover glass of touch screens such as ATM cash machines, industrial control equipment, mobile phones, digital cameras and flat-panel TVs. Background technique [0002] Touch-screen electronic devices such as ATM cash machines, industrial control equipment, mobile phones, digital cameras and flat-panel TVs are widely used, and the importance of cover glass as a protective component of touch-screen displays continues to increase. As a protective component, the touch screen cover glass is required to have properties such as scratch resistance, impact resistance, high toughness, low d...

Claims

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Application Information

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IPC IPC(8): C03C3/095
Inventor 赵会峰姜宏王洪鹃吕皓豆庆河吴建玉赵晓敏张春远
Owner CHONGQING XINJING SPECIAL GLASS CO LTD