Liquid cooling system for glass forming apparatus
AssigneeCorning Glass Works
InventorsArieh Carmi, Zung S. Chang, Thomas J. Rayeski
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Abstract
A closed liquid cooling system is provided within a mold body and pressurized to a desired extent so as to control the amount of heat removed from a glass-contacting mold wall portion through nucleate boiling, while simultaneously creating a thermal-siphon effect to avoid film boiling which would create an undesirable vapor insulating layer adjacent such mold wall.
Claims7
Apparatus for forming glass articles from molten glass which comprises, a forming assembly, said assembly including a housing having an enclosed cavity formed therein, said housing including a glass-contacting portion forming wall portions of said cavity, a reservoir of cooling fluid enclosed within said cavity, means communicating with said reservoir for collecting vapor generated by the nucleate boiling of said cooling fluid within said reservoir adjacent wall portions of said glass-contacting portion, pressure regulating means for regulating the pressure within said cavity and accordingly the boiling temperature of said cooling fluid, and thermalsiphoning means having openings therein for passage of cooling fluid positioned within said cavity for circulating said enclosed cooling fluid within the confines of said reservoir and through said circulation of said fluid inhibiting the formation of a vapor barrier within said reservoir adjacent said glass-contacting portion.
Dependencies are inferred from the claim text.