| 摘要 |
<p>The present invention relates to a process for manufacturing flat ribbons of a glass-based material and to an apparatus therefor. The process comprises providing a glass preform, heating the glass preform in a furnace, forming a gob and a pre-ribbon, removing the gob and drawing the glass pre-ribbon into a flat glass ribbon. Also provided is an apparatus for drawing a glass preform into a glass ribbon, the apparatus comprising a draw furnace, stretching arms for stretching and drawing the pre-ribbon into a glass ribbon, and opposing edge rollers for applying a downward force on the glass ribbon. The draw furnace may include a plurality of individual heating elements, the temperature of each heating element capable of being separately controlled. The apparatus may further include an annealing furnace for annealing the glass ribbon.</p> |
