Method for retaining slag during the discharge of molten metal f

Details Method for retaining slag during the discharge of molten metal f Method for retaining slag during the discharge of molten metal f

1989-07-03

1990-06-26

Kastler, S.

Metallurgical apparatus

Process

Plugging or tapping

266230, 222597, B22D 4110

Patent

active

049365533

ABSTRACT:
A method for retaining slag in a ladle or similar vessel containing molten metal such as used in the steel industry. Lumps of a highly refractory material having a density between the density of the molten metal and the density of the slag are added to the vessel. As the molten metal is drained from the vessel, the lumps agglomerate around the drain orifice and block the discharge of the slag from the vessel.

REFERENCES:
patent: 2246144 (1941-06-01), Perrin
patent: 2718389 (1955-09-01), Perrin
patent: 3944116 (1976-03-01), Danieli
patent: 4079918 (1978-03-01), Truppe
patent: 4274622 (1981-06-01), Ohmori
patent: 4399986 (1983-08-01), Collins
patent: 4462574 (1984-07-01), Keenan et al.
patent: 4494734 (1985-01-01), LaBate
patent: 4525463 (1985-06-01), Dislich
patent: 4526349 (1985-07-01), Schwer
patent: 4601415 (1986-07-01), Koffron
Stahl und Eisen 19 Marz 1970 pp. 259-260.
33 Metal Producing Nov. 1987 pp. 40-41 "Stoppers: Balls, Darts, and Now Tetron".

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