ANALYSIS OF SHEET-GLASS PRODUCTION IN LARGE-TONNAGE GLASSMAKING FURNACES

摘要

The process of making float-glass in large-tonnage glassmaking furnaces is analyzed. The optimal values of the rate and duration of melting and cooling of the molten glass are determined. It is shown that the melting time of the glass is 48 - 72 h and depends on the content of the cullet in the batch. The glass melt remains chemically and structurally uniform with cooling rates 10 - 12 K/h and cooling times 20 - 24 h, which yields glass of optimal quality.