PRODUCTION OF PERFORMED MATERIAL FOR OPTICAL FIBER

摘要

PURPOSE:To provide a production method as to sinter fine glass particles into vitrification, particularly designed to raise sintering speed and protect a fine glass particle supporting rod (dummy rod). CONSTITUTION:A fine glass particle form 16 supported by a supporting rod 15 is gradually inserted into a tilted hot oven 11 where the form 16 is sintered and vitrified while regulating the length of the heat zone of the oven 11. Thereby, sintering speed can be raised and the supporting rod can be protected.