SiO2-TiO2-BASED GLASS PRODUCTION METHOD, PRODUCTION METHOD FOR PLATE-SHAPED MEMBER COMPRISING SiO2-TiO2-BASED GLASS, AND SiO2-TiO2-BASED GLASS PRODUCTION DEVICE

SiO2-TiO2-BASED GLASS PRODUCTION METHOD, PRODUCTION METHOD FOR PLATE-SHAPED MEMBER COMPRISING SiO2-TiO2-BASED GLASS, AND SiO2-TiO2-BASED GLASS PRODUCTION DEVICE

A method for manufacturing an SiO 2 -TiO 2 based glass upon a target by a direct method, includes a first process of preheating the target and a second process of growing an SiO 2 -TiO 2 based glass ingot to a predetermined length upon the target which has been preheated, wherein the target is heate...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SAITO, TADAHIKO, YOSHINARI, TOSHIO
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
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Beschreibung
Zusammenfassung:A method for manufacturing an SiO 2 -TiO 2 based glass upon a target by a direct method, includes a first process of preheating the target and a second process of growing an SiO 2 -TiO 2 based glass ingot to a predetermined length upon the target which has been preheated, wherein the target is heated in the first process such that, in the second process, the temperature of growing surface of the glass ingot is maintained at or above a predetermined lower limit temperature.