High-strength touch screen glass component suitable for chemical tempering

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...

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