Ultra-white glass

A technology of ultra-white glass and thick glass, applied in the field of glass preparation, can solve problems such as affecting the quality of glass

Inactive Publication Date: 2011-06-15
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the iron content of domestic white float glass is about 0.07-0.20%, while the iron content of foreign white float glass is mostly around 0.05%. quality

Method used

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Examples

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Embodiment Construction

[0085] The present invention will be described in more detail by the following examples, but the present invention is not limited to the following examples.

[0086] All use the basic batching of common float glass in the following examples, and each composition content is as table 1:

[0087] Table 1 Example Basic Batching Component Table / % (by weight percentage)

[0088]

[0089] Introduce the above basic components through sandstone, dolomite, limestone, and soda ash, and add the required La 2 (CO 3 ) 3 、Ce 2 (CO 3 ) 3 、Nd 2 (CO 3 ) 3 , MnO 2 , CoO, CuSO 4 , fully mix the batch materials, the total mass is 100g, put it into a corundum crucible, and then put it on the platform in the glass melting furnace, after 5 hours, cast the molten glass liquid on the steel plate coated with zirconium powder, put Anneal in a holding furnace at 550°C. The thickness of the prepared sample is about 6mm, and the thickness is 4mm after rough grinding and polishing.

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Abstract

The invention relates to ultra-white glass, belonging to the preparation field of glass. The preparation method of the ultra-white glass is as follows: La2(CO3)3, Ce2(CO3)3, Nd2(CO3)3, MnO2, CoO and CuSO4 are added in common float glass to perform compound clarification and decoloring, wherein under the combined action of chemical decoloring and physical decoloring, the thickness of the molten glass is 4mm, the visible light transmittance is more than 94.5% under the wavelength of 380-780nm, the whiteness is less than 0.082, the flexural strength is more than 380MPa and the microhardness is more than 8320MPa. The ultra-white glass has the advantages of higher visible light transmittance, low whiteness, high flexural strength and higher microhardness; and the quality of the white float glass can be obviously increased. The ultra-white glass can be widely used in the fields such as building glass, photovoltaic technology, experimental apparatus and the like.

Description

Technical field: [0001] The invention relates to an ultra-clear glass, which can be widely used in architectural glass, photovoltaic technology and experimental instruments, and belongs to the field of glass preparation. Background technique: [0002] In recent years, with the rapid development of my country's economy, the level of optoelectronic technology and experimental research has been greatly improved, and the market demand for ultra-clear and ultra-hard glass has expanded. However, the production of ultra-clear glass is difficult and costly, and the supply exceeds demand. As we all know, the color of white float glass is caused by the iron oxide in the raw material, iron in the glass as Fe 2+ and Fe 3+ , Fe 2+ Make the glass blue-green, Fe 3+ Make the glass yellow-green, Fe 2+ is Fe 3+ Twelve times the coloring power, the color of the glass is determined by Fe 2+ and Fe 3+ The balance state is determined. [0003] At present, the iron content of domestic whit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/095
Inventor 李梅柳召刚胡艳宏张晓伟王觅堂张永强
Owner INNER MONGOLIA UNIV OF SCI & TECH
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