Slag-retaining plug for metal pouring operations

Details Slag-retaining plug for metal pouring operations Slag-retaining plug for metal pouring operations

1986-05-30

1988-02-16

Rutledge, L. Dewayne

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

By separating metal in a molten mass from undesired...

266272, 222597, B22D 4110

Patent

active

047250453

ABSTRACT:
A refractory plug for blocking the tap hole of a steel making vessel or transfer ladle containing molten steel covered by a layer of slag and for minimizing turbulence caused by vortexing. The plug comprises a body having an inverted cone-shaped bottom and having an integral top portion projecting axially from a top base surface of the cone-shaped bottom portion. The plug is added to the melt just prior to or during the tapping operation to minimize vortexing and to plug the tap hole prior to egress of the slag.

REFERENCES:
patent: 4462574 (1984-07-01), Keenan et al.
patent: 4494734 (1985-01-01), Labate et al.
patent: 4526349 (1985-07-01), Schwer
patent: 4601415 (1986-07-01), Koffron

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