Metal founding – Means providing inert or reducing atmosphere – In continuous casting apparatus
Patent
1976-03-16
1977-12-13
Shore, Ronald J.
Metal founding
Means providing inert or reducing atmosphere
In continuous casting apparatus
266236, B22D 1110
Patent
active
040623971
ABSTRACT:
A shroud for enshrouding, in a shield of anti-oxidation gas, the molten stream which flows from the tundish into the mold and/or from the ladle into the tundish of continuous casting apparatus. The shroud includes a platform from which there extends a projection having the shape of a frustrum of a circular cone terminating in a circular opening. The shroud is formed from a plate having an opening therein by hydraulically deep drawing the material around the opening. A nipple is provided in the projection for injecting the anti-oxidation gas. In contrast to the flow of the gas in the use of prior-art shrouds, the gas, in the practice of this invention, flows in a helical or cyclonic path about the molten stream and effectively protects the stream against oxidation.
REFERENCES:
patent: 3399715 (1968-09-01), Harders et al.
patent: 3439735 (1969-04-01), Holmes
patent: 3545529 (1970-12-01), Keene
patent: 3563299 (1971-02-01), Schroge
patent: 3572422 (1971-03-01), Lyman
patent: 3700026 (1972-10-01), Adochi et al.
patent: 3833050 (1974-09-01), Kashuba et al.
patent: 3921704 (1975-11-01), Tozoki
Diamond Hymen
Shore Ronald J.
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