Dehydration-sintering furnace, a manufacturing method of an...

Details Dehydration-sintering furnace, a manufacturing method of an... Dehydration-sintering furnace, a manufacturing method of an...

2011-01-11

2011-01-11

Hoffmann, John (Department: 1791)

Glass manufacturing

Fiber making apparatus

With measuring, controlling, sensing, timing, inspecting,...

C065S489000, C065S530000

Reexamination Certificate

active

07866189

ABSTRACT:
A dehydration-sintering furnace for dehydrating and/or sintering an optical fiber preform for use in production of an optical fiber includes a muffle for accommodating the optical fiber preform, a heater for heating the muffle, and a pressure fluctuation absorbing apparatus connected to the muffle. Since the pressure fluctuation absorbing apparatus is thermally insulated from a room temperature atmosphere or heated, vapor produced in a dehydration-sintering process is prevented from condensing (liquefying) in a pressure fluctuation absorbing apparatus, thereby preventing reduced dehydration effectiveness in the muffle and reduced quality of the optical fiber preform.

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