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

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...

AI Technical Summary

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

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