METHOD AND APPARATUS FOR CONTROLLING GLASS TUBE TAPER

A glass tube manufacturing apparatus for manufacturing glass tubing includes a glass delivery tank with molten glass. The glass delivery tank has a bottom opening. A bell has an upper portion with an outer diameter located at the bottom opening. A heating apparatus is at least partially disposed aro...

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Bibliographische Detailangaben
Hauptverfasser:	MENG, Jiandong, BERKEY, Adam Charles, GEATHERS, Eliot, PANIDES, Elias, ZHOU, Chunfeng, HAWTOF, Daniel Warren, PENG, Gaozhu, YURKOVSKYY, Yuriy, MCELHENY, Douglas Edward, RHOADS, Randy Lee
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 glass tube manufacturing apparatus for manufacturing glass tubing includes a glass delivery tank with molten glass. The glass delivery tank has a bottom opening. A bell has an upper portion with an outer diameter located at the bottom opening. A heating apparatus is at least partially disposed around the bell. The heating apparatus includes a heated portion and a muffle portion located below the heated portion. A lower extended muffle structure extends downwardly from the muffle portion. The lower extended muffle structure extending about the glass tubing on all sides to manage convective airflow therethrough.