Ultra-white float glass

An ultra-white float glass and glass technology, applied in the field of float glass, can solve the problems of reduced glass transmittance and large amount of addition, and achieve the effect of improving chemical stability and performance.

Active Publication Date: 2009-06-24
CSG HOLDING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to Fe 2 o 3 , CoO and MnO 2 Adding a large amount will greatly reduce the transmittance of the glass

Method used

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  • Ultra-white float glass
  • Ultra-white float glass

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Embodiment Construction

[0030] The present invention will be further elaborated below by specific examples.

[0031] Table 1 shows representative examples of base glass compositions

[0032] Table 1 Main components of glass

[0033] SiO 2 Na 2 o CaO MgO Al 2 o 3 Component 1 (wt%) 65 10 15 5 5 Component 2 (wt%) 75 20 5 0 0 Component 3 (wt%) 73.5 14.5 10.5 0.5 1.0

[0034] In the above-mentioned base glass component 3, the embodiment of adding the coloring agent (accounting for the percentage content of base glass weight) given by the present invention is shown in Table 2:

[0035] Table 2

[0036]

[0037] In the specific implementation process, in order to increase the accuracy and uniformity of the ingredients, cobalt oxide and dry silica sand or soda ash can be expanded to a concentration of 1 / 100, and put into use with other colorants at the same time, after uniform stirring and high temperature melting , Float forming can produce ult...

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Abstract

The invention relates to super-white float glass comprising a basic glass part and a colorant part, wherein the basic glass part comprises the following components: 65 to 75 weight percent of SiO2, 10 to 20 weight percent of Na2O, 5 to 15 weight percent of CaO, 0 to 5 weight percent of MgO, and 0 to 5 weight percent of Al2O3; and the colorant part comprises the following components counted by weight of the basic glass: 0 to 0.02 weight percent of Fe2O3, 0 to 2ppm of CoO, 0 to 5 weight percent of Nd2O3, 0 to 5 weight percent of La2O3, and 0 to 0.1 weight percent of MnO2. The finished product of the super-white float glass has the dominant wavelength range of between 480 and 510nm under the condition of the conversion into 5mm equivalent thickness, the visible light transmission rate of above 91 percent, and the light blue edge color.

Description

【Technical field】 [0001] The invention belongs to the field of float glass, in particular to an ultra-clear float glass. 【Background technique】 [0002] Ultra-clear float glass is a high-grade variety of glass products with high light transmittance and high transparency. It is mainly used in interior and exterior decoration of high-end buildings, electronic products, high-end car glass, solar cells, high-end gardening buildings, and high-end glass furniture. , Various imitation crystal products and other industries. The development and application of solar energy provides a broader development space for the development of ultra-clear glass - the glass substrate of solar photovoltaic power generation system needs to use ultra-clear glass, because the light transmittance of ultra-clear glass is above 91%. [0003] Most people think that ultra-clear glass can be called ultra-clear glass because the total iron content in the glass is less than 200ppm. Sulfur content, and due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/02C03C3/087C03C1/04
Inventor 王杏娟贺有乐陈志鸿陶武刚
Owner CSG HOLDING
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