Stopper for retaining slag and process for implementation and ma

Details Stopper for retaining slag and process for implementation and ma Stopper for retaining slag and process for implementation and ma

1987-11-09

1989-08-08

Kastler, S.

Metallurgical apparatus

Process

Plugging or tapping

266230, C21C 546

Patent

active

048545503

ABSTRACT:
The stopper (1) is intended to automatically stop the orifice (14) of the pouring hole (11) of a metallurgical container (8) at the end of pouring of liquid metal (12) before the passage of slag (13).
It principally comprises an external envelope in a refractory insulating material which is capable of sintering inside the metallurgical container (8), and composed of inorganic refractory particles embedded in a binder and a heavy core (6) intended to give the stopper (1) a density such that it floats on the liquid metal (12) and is sufficiently submerged in the metal (12) in order to stop the orifice (14) of the pouring hole (11) before the passage of slag (13).

REFERENCES:
patent: 3727668 (1973-04-01), Griffiths
patent: 4526349 (1985-07-01), Schwer

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