Methods of adding reactive metals to steels being continuously c

Details Methods of adding reactive metals to steels being continuously c Methods of adding reactive metals to steels being continuously c

1982-05-17

1986-09-30

Godici, Nicholas P.

Metal founding

Process

Shaping liquid metal against a forming surface

164475, B22D 1110

Patent

active

046142231

ABSTRACT:
A method for adding reactive metals to steel being continuously cast to eliminate the problem of tundish nozzle plugging is provided by the steps of continuously casting molten steel through a tundish nozzle while introducing a reactive metal into the molten steel in a form and at a point either above or below the tundish nozzle such that high melting oxides and/or oxysulfides of the reactive metal are not formed in an amount sufficient to cause plugging in the nozzle before passing through the nozzle. A flux can be introduced with the alloy or subsequent to the alloy addition that can lower the melting point of the reactive products below the temperature of the steel going through the tundish nozzle.

REFERENCES:
patent: 3459346 (1969-08-01), Tinnes
patent: 4367784 (1983-01-01), Praitoni et al.
"Cast Steel Practices" of the 1971 Electric Furnace Conference, pp. 31 through 45.

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