B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/57
B22D 11/06 (2006.01)
Patent
CA 1145111
Abstract of the Disclosure A molten metal feed tip for a continuous caster for aluminum or the, like is made by forming a slurry of refractory fibers in an aqueous solution containing a dispersion of colloidal silica. Liquid is extracted from the slurry to form a flexible felt blanket of refractory fibers which is then compressed in a closed die cavity having the desired geometry of one moiety of the molten metal feed tip. The felt blanket is heated in the closed die cavity to a sufficient temperature to extract water from solution remaining in the blanket to form one rigid moiety of the feed tip. Two such moieties are assembled to form a feed tip having a molten metal feed gap therebetween. The feed tip tapers towards the downstream edges which are compressed to a higher density than the upstream portion of the feed tip. The downstream edges have a greater thermal conductivity than the thermal conductivity of the upstream portion. The inside surfaces of the feed tip can be coated with glass fabric and the outside coated with metal foil to resist moisture. The inside and outside faces have generally planar portions converging from the upstream portion toward the downstream edges.
343063
Jenness Wendell G.
Lewis William R.
Smith Dennis M.
Hirons & Rogers
Hunter Engineering Company
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