Union for providing inert gas between teeming nozzle and pouring

Details Union for providing inert gas between teeming nozzle and pouring Union for providing inert gas between teeming nozzle and pouring

1982-02-24

1984-02-07

Scherbel, David A.

Dispensing

Molten metal dispensing

Gaseous fluid engages molten metal

222606, 164415, 164475, B22D 4108

Patent

active

044298161

ABSTRACT:
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.

REFERENCES:
patent: 4042007 (1977-08-01), Zavaras
patent: 4275825 (1981-06-01), King et al.

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