Soda-lime silicate plate-like glass and manufacturing method thereof

A technology of soda lime silicate and plate glass, which is applied in the manufacture of the above-mentioned glass composition, the manufacture of glass plates for solar cells, and the manufacture of soda lime silicate plate glass, can solve the problem that the tendency of crystallization is large and difficult to overcome. , yield decline and other problems, to achieve the effect of reducing melting temperature, reducing coefficient of thermal expansion, and improving quality

Active Publication Date: 2012-04-04
许昌安彩新能科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the prior art, the soda-lime silicate glass produced by ordinary methods uses mirabilite and carbon powder as clarifiers, and the glass produced in this way has its insurmountable shortcomings
First of all, the crystallization tendency of the glass is relatively large, and it is easy to form crystallization stones in glass products such as glass plates, resulting in a decrease in the yield; secondly, Glauber's salt and carbon powder are used as clarifiers, and a reducing atmosphere is also formed in the glass pool furnace. With the presence of sulfur in the raw materials, the generation of NiS crystals cannot be avoided, which is undesirable

Method used

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  • Soda-lime silicate plate-like glass and manufacturing method thereof
  • Soda-lime silicate plate-like glass and manufacturing method thereof
  • Soda-lime silicate plate-like glass and manufacturing method thereof

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Embodiment Construction

[0021] In the composition of soda lime silica glass, SiO 2 As the main glass network former, it usually contains more Na 2 O, CaO, Al 2 o 3 , and other glass regulators, such as MgO, K 2 O et al. Among these glass components, CaO and MgO have a greater impact on the crystallization performance of the glass, especially the increase in the CaO content usually causes the liquidus temperature of the glass to rise, and a small amount of MgO replacing CaO is beneficial to increase the crystallization resistance of the glass, but Its content must be limited, otherwise it will increase the crystallization tendency of the glass. A small amount of intermediate can repair the broken silicon-oxygen network and improve the anti-devitrification ability of the glass to a certain extent, but it will make the glass difficult to melt.

[0022] In the present invention, various conventional sodium calcium silicate components are optimized, and CaO, MgO, Al 2 o 3 content while introducing ...

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Abstract

The invention provides tabular soda-lime silicate glass and a manufacturing method thereof, and pertains to the field of glass article production. Various raw materials are as follows according to weight percentage: SiO2, 70-75; Al2O3, 0.5-2.0; Na2O, 12-15.5; K2O, 0-1; CaO, 8-13; Sb2O3, 0.05-0.3; MgO, 0.1-1; Li2O; 0.1-1.0; Fe2O3, less than 0.015. In the manufacturing method thereof, the glass ingredients are put in a platinum-rhodium crucible mainly, the platinum-rhodium crucible is put in a si-mo bar electric cooker with melting temperature of 1450 DEG C, rapid stir is carried out along the inner wall of the crucible which is approaching to the bottom for 20 sec, then the crucible is put in the electric cooker again for 8.0 h for discharging. On a stainless steel table, four unconnected stainless steel bars are used for forming a rectangle of 10*8cm<2>. The melting glass liquid is poured into the rectangle rapidly for carrying out casting, and heat preservation and annealing are carried out. The glass in which the formulation is adopted can lower the melting temperature and viscosity of the glass, the ratio of melting of the furnace is improved, thus the quality of the glass is improved.

Description

technical field [0001] The invention belongs to the field of glass product production, and in particular relates to a manufacturing method of soda-lime silicate plate glass, which is suitable for manufacturing various glass plates, and is especially suitable for manufacturing glass plates for solar cells; the present invention also relates to the preparation of the above-mentioned glass composition Manufacturing method. Background of the invention [0002] When non-renewable energy sources such as coal and oil are in urgent need around the world, and energy issues have increasingly become a bottleneck restricting the development of the international society and economy, there is an urgent need to develop new energy sources to replace conventional non-renewable resources and provide new impetus for economic development It has become an important task for technicians in the industry. Solar energy is a clean, efficient and inexhaustible new energy source. Photovoltaic power g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/087
Inventor 贾伟苍利民张军马江顺刘庆锋
Owner 许昌安彩新能科技有限公司
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