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Production process of electronic ultra-thin glass

A technology of ultra-thin glass and production process, applied in glass manufacturing equipment, glass cutting devices, manufacturing tools, etc., to achieve the effect of simplifying component design

Inactive Publication Date: 2018-05-11
长兴旗滨玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the process of producing ultra-thin electronic glass using float technology is not only the forming process

Method used

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  • Production process of electronic ultra-thin glass

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] On the basis of ordinary glass components, the Si content is adjusted to be controlled at 72.5%, and the Al content is increased to 1.0% on the basis of ordinary glass components. 0.0095% of praseodymium oxide, 0.0098% of tantalum oxide and 0.0085% of neodymium oxide are added to the total mass of ordinary glass raw materials.

[0028] The electronic glass batch material is made of silica sand and the iron content is controlled at 400ppm to ensure that the light transmittance of electronic ultra-thin glass products is above 90%; the silica sand particle size of 24 mesh can be fully passed, and the ultrafine powder of 150 mesh can be controlled within 5%.

[0029] The particle size of dolomite and limestone is required to be controlled and there are no pollutants such as soil; the temperature of the material is controlled at 38°C to prevent the agglomeration of soda ash and Glauber's salt in the batch material from entering the melting section due to too low or too high t...

Embodiment 2

[0036] On the basis of ordinary glass components, the Si content is adjusted to be controlled at 73%, and the Al content is increased to 1.2% on the basis of ordinary glass components. 0.03% of praseodymium oxide, 0.05% of tantalum oxide and 0.01% of neodymium oxide are added to the total mass of ordinary glass raw materials.

[0037] The electronic glass batch material is made of silica sand and the iron content is controlled at 400ppm to ensure that the light transmittance of electronic ultra-thin glass products is above 90%; the silica sand particle size of 24 mesh can be fully passed, and the ultrafine powder of 150 mesh can be controlled within 5%.

[0038] The particle size of dolomite and limestone is required to be controlled and there are no pollutants such as soil; the temperature of the material is controlled at 40°C to prevent the agglomeration of soda ash and Glauber's salt in the batch material from entering the melting section due to too low or too high temperatu...

Embodiment 3

[0045] On the basis of ordinary glass components, the Si content is adjusted to be controlled at 72.5%, and the Al content is increased to 1.1% on the basis of ordinary glass components. 0.002% of praseodymium oxide, 0.003% of tantalum oxide and 0.001% of neodymium oxide are added to the total mass of ordinary glass raw materials.

[0046] The electronic glass batch material is made of silica sand and the iron content is controlled at 450ppm to ensure that the light transmittance of electronic ultra-thin glass products is above 90%; the particle size of silica sand is 24 mesh to achieve full pass, and the ultrafine powder of 150 mesh is controlled within 5%.

[0047] The particle size of dolomite and limestone is required to be controlled and there are no pollutants such as soil; the temperature of the material is controlled at 45°C to prevent the agglomeration of soda ash and Glauber's salt in the batch material from entering the melting section due to too low or too high temp...

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Abstract

The invention relates to a production process of electronic ultra-thin glass. The adopted Si content is controlled to be 72.5%; Si-containing components in glass batch can reduce the thermal expansioncoefficient of glass and improve chemical stability, hardness, viscosity and mechanical strength of the glass, but melting difficulty can be caused due to the high melting point and higher Si contentof the glass, and devitrification can be caused. Therefore, the Si content in the components is designed in order to cooperate with other glass batch components and subsequent melting temperatures. The adopted Al content is increased to 1.0% on the basis of common glass components, Al-containing components in the glass batch can reduce the devitrification performance of the glass, improve chemical stability of the glass, reduce erosion of molten glass on refractory materials and reduce defective substances in the molten glass; too high Al content can increase viscosity of the molten glass, and a glass product can generate stripes, so that the Al content in the glass batch is increased to 1.0% in view of subsequent process control.

Description

technical field [0001] The invention belongs to the field of glass manufacturing, and relates to a production process of ultra-thin glass, in particular to an electronic ultra-thin glass with an output thickness of 0.5-1.1 mm, the light transmittance is greater than 91%, the thickness difference is less than 0.1 mm, and the plate width is 2980mm, the waviness is 0.1-0.15um, the microscopic situation reaches 0 pieces / square meter, and the production process of electronic ultra-thin glass without warping. Background technique [0002] With the development of electronic information industry, the era of touch screen has been opened up. The supply of ultra-thin glass used as a medium for touch screens is in short supply, making its price much higher than that of ordinary glass. [0003] The production of ultra-thin electronic glass by float glass technology in my country is still in its infancy, and the technology of producing ultra-thin electronic glass by float glass is in the...

Claims

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Application Information

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IPC IPC(8): C03C3/095C03B18/02C03B33/02
CPCC03C3/095C03B18/02C03B33/02
Inventor 刘柏辉訚清周红张建辉石林余濮伟栋雷明肖辉斌赵海东晏璕王硕稔吴信军潘海滨潘亮亮杨海丰
Owner 长兴旗滨玻璃有限公司
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