Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1980-03-21
1981-04-14
Rosenberg, P. D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 58, C21C 700, C21C 702
Patent
active
042617359
ABSTRACT:
In an injection-metallurgical process performed in a ladle, lime is injected during a first phase after the deoxidation, removing the main part of the sulphur existing in the melt. During a second phase thereafter calcium-silicon, calcium-carbide or calcium-cyanamide is injected, which has a devised impact upon the morphology of the remaining inclusions. At the same time the flowability of the steel is improved, which is particularly important in the production of deep-drawing steels.
REFERENCES:
patent: 4121923 (1978-10-01), Gruner
patent: 4137072 (1979-01-01), Kawakami
patent: 4180397 (1979-12-01), Naylor
Rosenberg P. D.
Scandinavian Lancers Aktiebolag
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