文献类型：期刊文献

英文题名：Melting borosilicate glass: Fibres and furnaces

作者：Chen, Jin-Fang[1]; Sun, Shuai[1]; Xue, Ming-Jun[2,4]; Su, Jiang[3,4,5]

机构：[1] School of Materials Science and Technology, Jiang Su University, China; [2] School of Materials Science and Technology, ECUST, China; [3] Provincial University Zhenjiang, Jiangsu province, China; [4] East China University of Science and Technology [ECUST], Shanghai, China; [5] School of Materials Science and Technology, China

年份：2009

卷号：32

期号：4

起止页码：29

外文期刊名：Glass International

收录：EI(收录号：20093112235117)

语种：英文

外文关键词：Electric losses - Glass manufacture - Melting - Electric conductivity

摘要：An all-electric shaft furnace with an output of 1.5 tonnes/day of borosilicate glass for Vycor fibers was studied discussed and comparisons were drawn with flame fired furnaces, melting factors, and batch compositions to find optimum glass quality. Four pairs of Molybdenum electrodes were horizontally installed on the upper and lower layers of an electric furnace and the losses of high content B2O3 in molten glass through the forehearth was prevented. Low heat conductivity of white afrodite and a slowly decreasing electric conductivity of soda borosilicate glass prevents the molten glass to flow easily through the throat and riser during heat up. The results show that at lower temperatures, Vycor fibers are inferior in quality due to increased thickness of the batch blanket on the surface of molten glass.