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The Effect of Bi_2O_3 on the Structure and Properties of float glass

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Journal of Wuhan University of Technology(Materials Science) 2013年第5期28卷 898-901页

作者：何峰 ZHANG Wentao LIU Ciqi XIE Jun School of Materials Science and Engineering Wuhan University of Technology

CaO-Al2O3-SiO2 system float glasses were melted at an elevated temperature, and about 60% of the total energy was occupied by melting and clarification stage. In order to reduce the melting temperature of the float glasses, Bi2O3 was added as fluxing agent. The structure and some melting properties such as the influence of the addition of the oxidation bismuth on the properties of float glass melt, melting temperature, and the structure of glass were studied. The results showed that the basic structure was not changed with the addition of Bi2O3 from 0.5% to 2%. The viscosity of the glass melt decreased with the addition of Bi2O3 obviously, as the viscosity of the glass melt was 1.35 Pa.s, the temperature was reduced by about 30 ℃ from sample A1 to sample A5. With the increasing of Bi2O3, the bending strength of glass was reduced and the transmisivity of glass samples had no change in visible light range, and the transmissivity of the glass samples was more than 88%. The ultraviolet cut-off length showed red shift with the addition of Bi2O3. With the increasing of Bi2O3, the water resistance of the glass samples was improved.

关键词： float glass Bi2O3 structure properties

Effect of Temperature on Polishing and Flatting Time of float-formed Li_2O-Al_2O_3-SiO_2 glass

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Journal of Wuhan University of Technology(Materials Science) 2010年第3期25卷 408-410页

作者：程金树谢军 School of Materials Science and Engineering Wuhan University of Technology

Li2O-Al2O3-SiO2 glass prepared from traditional melting and cooling process was *** surface characteristic of LAS glass was studied by simulating tin bath with different temperature and time,and the effect of surface tension/viscosity ratio on flatting time was *** results demonstrated that LAS glass can polish effectively when polishing at 1 300 ℃ for 8 min,and the optimum flatting and polishing temperature was 1 250-1 300 ℃.

关键词： Li2O-Al2O3-SiO2 glass polishing flatting time float glass

THE RELATIONSHIP BETWEEN BATCH REDOX AND SULPHUR BUBBLE DEFECT OF glass

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Journal of Wuhan University of Technology(Materials Science) 2000年第3期15卷 67-72页

作者：谢峻林 Wuhan Univ Technol W Silicate Engn Res Ctr Wuhan 430070 Peoples R China

Bubble defects of glass were studied by Ruman spectrum, C equivalent of glass raw materials were analyzed by chemical method, and the solubility of sulphur in glass was determined with SC-132 Sulphur Determination.. Then, the relationship between glass bubble, the redox numbers of glass batch and the solubility of sulphur in float glass were discussed. The way that can improve the quality of float glass was found.

关键词： float glass sulphur bubble batch redox

Temperature Modeling of the Molten glass in Tin Bath

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Journal of Wuhan University of Technology(Materials Science) 2009年第2期24卷 333-335页

作者：魏志华 Green Building Materials and Manufacturing Engineering Research Center (Ministry of Education) Wuhan University of Technology

Based on the experimental investigation by quantitative analysis, temperature fields of the molten glass in tin bath were numerically simulated by the finite elememt method. The experimental results show that the cooling rate of glass is directly proportional to the draught speed, but inversely proportional to the thickness of the glass. This model lays the foundation for computer simulation system about float glass.

关键词： float glass tin bath temperature field finite element

KINETIC FACTORS AFFECTING THE CORROSION OF SiO_2 IN SILICATE glassES CAUSED BY ALKALINE SOLUTIONS

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Journal of Wuhan University of Technology(Materials Science) 1995年第2期10卷 1-10页

作者：吴正明步恒祉 Wuhan Univ of Technology China

The corrosion of a ZrO2 containing alkali re-sistant silicate glass, float glass and silica glass caused by the aqueous solution of NaOH was studied by use of correlation method with spectrophotometry. Effects of the corroding tem-perature, time and solution concentration on the rate of reac-tion and the degree of corrosion were investigated; effects of the apparent activation energy and the experimental value of frequency factor on the rate constant were discussed.

关键词： alkali-resistant glass silica glass float glass kinetics of alkaline corrosion