Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1991-09-04
1993-05-04
Lindsay, Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 182, 65 605, C03B 37018
Patent
active
052078132
ABSTRACT:
A glass article is produced at a high production rate and a high yield by jetting a glass-forming raw material from a multi-port burner, synthesizing glass soot through hydrolysis of the glass-forming raw material, depositing the glass soot to form a soot preform and heating and vitrifying the soot preform to produce a transparent glass article, wherein the glass-forming raw material is vaporized by heating it at a temperature higher than its boiling point and directly supplied to the burner, the vaporized glass-forming raw material and a fuel gas for synthesizing glass soot are supplied to an inner port of the multi-port burner and a fuel gas for heating a formed preform is supplied to an outer port of the multi-port burner, and a molar ratio of water generated by a reaction of the fuel gas for synthesizing glass soot to the glass-foring raw material is from to 2 to 3.
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Danzuka Toshio
Ito Masumi
Takagi Masahiro
Yokota Hiroshi
Lindsay Robert L.
Sumitomo Electric Industries Ltd.
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