Float glass

Abstract

The utility model relates to float glass, batch of the float glass and a production method of the float glass. The compositions of the float glass include silicate glass basic oxide, and 0.01 to 2 percent of lithium oxide by weight and rare earth oxide, wherein, the rare earth is at least three kinds of lanthanum, cerium, yttrium, praseodymium and neodymium, which is sourced from the gangue of the rare earth. The batch of the float glass is mixed by the silicate glass basic raw material and the additives, in weight percent, 87.02-106.0:0.02-4. The additives are the lithium carbonate Li2Co3 and the gangue of the rare earth, and the batch is made into the float glass through a float-glass melting kiln. For the lithium oxide and the rare earth are added, the present invention reduces the melting temperature of the glass, which can be applied to the production of the large-scale float glass while satisfying the electrics, the calorifics, and the stable chemical performance. The float glass concerned in the present invention is more applicable to producing the chemical toughened glass.

Description

technical field [0001] The invention relates to a float glass, in particular to a silicate glass containing lithium and doped with rare earth tailings, which is used for making common float glass, especially suitable for making chemically toughened glass. Background technique [0002] Glass production enterprises have always been "double high" enterprises, with high energy consumption and high pollution. This is mainly due to the imperfect composition of the glass, resulting in a higher melting temperature of the glass. The melting and clarifying temperature refers to the temperature corresponding to the viscosity of 10Pa·S, which is an important index in the glass manufacturing process. A higher melting and clarifying temperature (such as 1440°C) will cause a series of adverse consequences, such as the serious erosion of the glass liquid on the refractory material of the tank wall, which will reduce the life of the glass tank kiln, form a huge waste, and affect the quality...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of high melting temperature of float glass in the prior art, the purpose of the present invention is to provide a kind of float glass with low melting temperature, which meets the requirements of ordinary glass and is more suitable for chemical tempering.