GLASS PREFORM AND METHOD OF MANUFACTURING GLASS

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a glass preform by which the glass preform having uniform outside diameter in the longitudinal direction and capable of forming good quality glass by making it transparent and a method of manufacturing the glass using the glass preform. SOLUTION: The method of manufacturing the glass preform is carried out by monitoring the outside diameter of a part where glass fine particles are deposited in every burners, controlling the quantity of a glass raw material to be supplied to each burner so as to uniformalize the outside diameter in the longitudinal direction and depositing the glass fine particles while controlling the flow rate of an exhaust gas per one second to≥10% of a reaction vessel inside volume. The method of manufacturing the glass uses the glass preform. COPYRIGHT: (C)2006,JPO&NCIPI