METHOD AND APPARATUS FOR DRYING AND CONSOLIDATING A PREFORM FOR OPTICAL FIBRES

A process and an apparatus for drying and consolidating an optical fibre preform in a furnace tube comprising a heating chamber, wherein an extension tube having an extension chamber configured to house at least a length portion of the preform is removably joined to the furnace tube and the drying p...

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Bibliographic Details
Main Authors CARONNA, Valeria, GRIECO, Stefano, SCHIAFFO, Antonio
Format Patent
LanguageEnglish
French
German
Published 06.12.2023
Subjects
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
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Summary:A process and an apparatus for drying and consolidating an optical fibre preform in a furnace tube comprising a heating chamber, wherein an extension tube having an extension chamber configured to house at least a length portion of the preform is removably joined to the furnace tube and the drying process starts with the preform not completely inserted into the furnace tube, an upper length portion of the preform being surrounded by the extension tube joint to the furnace tube.
Bibliography:Application Number: EP20170714215