Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1979-10-03
1981-10-13
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 58, 75 60, C21C 710
Patent
active
042946115
ABSTRACT:
A process for reducing the inclusion content of steels and refining their structure which comprises the steps of subjecting molten steel containing inclusions to a pressure of at least 1 atm; removing inclusions from the molten steel by introducing therein at said pressure an inclusion-removing alloy containing calcium or magnesium; and thereafter applying vacuum to the molten steel to evaporate residual calcium or magnesium from the steel.
REFERENCES:
patent: 3336132 (1967-08-01), McCoy
patent: 3467167 (1969-09-01), Mahin
patent: 3702243 (1972-11-01), Miltenberger
patent: 3980469 (1976-09-01), Forster
patent: 3998625 (1976-12-01), Koros
patent: 4036635 (1977-07-01), Klapdar
patent: 4054445 (1977-10-01), Ramacciotti
Ototani, "Deoxidation and Desulfurization of Liquid Steel with Calcium Alloys, " Tetsu-to-Hagane, pp. 334-342 (1971).
Savena, "Effect of Injection of CaO-Containing Slag Powder on Deoxidation Characteristics of Aluminum-Killed Steel, " Scand. J. Met 4.
"Scandinavian Lancers Injection Metallurgy System Eyes Invasion of American Shores", 33 Metal Producing, 4/1978.
Kaldor Antal
Kiss Gyula
Kiss Jozsef
Tamas Istvan
Tamas Lajos
Rosenberg Peter D.
Ross Karl F.
Vasipari Kutato Intezet
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