Method and apparatus for adding shot to molten steel

Details Method and apparatus for adding shot to molten steel Method and apparatus for adding shot to molten steel

1989-01-13

1989-09-05

Rosenberg, Peter D.

Alloys or metallic compositions

Ferrous

Lead, bismuth, selenium, tellurium or calcium containing

75 53, 75 58, 266216, 420 86, C22C 3308

Patent

active

048636843

ABSTRACT:
A vertical first stream of molten metal flows from a ladle into the tundish of a continuous casting apparatus. A second stream composed of solid, particulate alloying ingredient and a non-oxidizing carrier gas is directed into the first stream with a nozzle. The two streams each have unenclosed parts exposed to the atmosphere surrounding the ladle and the tundish. The nozzle is cooled with a non-oxidizing gas flowing through a nozzle cooling jacket and exhausted at the outlet end of the nozzle. The nozzle interior has a converging downstream end portion for converging the second stream just before it leaves the nozzle.

REFERENCES:
patent: 4389249 (1983-06-01), Holowaty
patent: 4602949 (1986-07-01), Rellis et al.
patent: 4747584 (1988-05-01), Rellis et al.

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