Pouring of molten metals

Details Pouring of molten metals Pouring of molten metals

B - Operations, Transporting

22

D

22/80

B22D 41/08 (2006.01) B22D 41/50 (2006.01) F27D 3/14 (2006.01)

Patent

CA 1191325

ABSTRACT IMPROVEMENTS IN THE POURING OF MOLTEN METALS In submerged teeming operations the extended pouring tube which receives molten metal from a vessel via a nozzle has gas admitted thereto for protecting it against molten metal attack. A union block is sandwiched between the nozzle and pouring tube, block being surrounded by a metal jacket spaced therefrom to form a gas manifold to be fed with gas via a gas supply pipe. Gas admitted to the manifold is ejected, around the lower end of the union block, by a surrounding annular orifice into the pouring tube and flows downwardly along the wall thereof as a protective gas film.

397380

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