Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1981-01-02
1983-01-18
Rosenberg, P. D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 59, 266218, 266243, C21C 548, C21C 542
Patent
active
043690602
ABSTRACT:
Process of refining of a metal bath in a crucible with oxygen blast at the top and crucible used.
The invention consists essentially of providing in the bottom (15) of the crucible agitating gas injectors (15) located at least in a peripheral circular ring situated in immediate proximity to the refractory side wall. The injectors are preferably concentrated opposite the journals. Secondary injectors are, also preferably, provided in the bottom zone, intermediate between the ring and the center of the crucible.
The invention makes it possible, in relation to the prior injection practice, to reduce the rate of dissolution of the agitating gas in the molten metal and then makes it possible to use a low-cost agitating gas, such as nitrogen, without risk of excessive nitridation of the bath.
REFERENCES:
patent: 3854932 (1974-12-01), Bishop
patent: 4195985 (1980-04-01), Brotzmann
patent: 4198230 (1980-04-01), Brotzmann
patent: 4280838 (1981-07-01), Marukowa
Bauler Claude
Denier Guy
Goedert Ferdinand
Grosjean Jean-Claude
Henrion Romain
Arbed S.A.
Irsid
Rosenberg P. D.
Striker Michael J.
LandOfFree
Process of refining of a metal bath in a crucible with oxygen bl does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process of refining of a metal bath in a crucible with oxygen bl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of refining of a metal bath in a crucible with oxygen bl will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-136255