Process for the treatment of metal melts with scavenging gas

Details Process for the treatment of metal melts with scavenging gas Process for the treatment of metal melts with scavenging gas

1985-07-18

1987-03-03

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, 75 58, 266218, C21C 710

Patent

active

046473068

ABSTRACT:
In a process for the treatment of metal melts, such as steel melts, with scavenging gas in a ladle under reduced pressure, inert scavenging gas is supplied through a plurality of inlet devices, such as scavenging gas supply bricks, built into the ladle bottom. In order to produce a flow of scavenging gas of low energy loss and free of counter-flow in the region of gas bubbles ascending through the melt, at least two scavenging gas inlet devices are disposed in the bottom of the ladle at a spacing which is equal to from 0.3 to 0.8 times the internal radius of the bottom of the ladle.

REFERENCES:
patent: 3854932 (1974-12-01), Bishop
patent: 3980469 (1976-09-01), Forster

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