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Technology for chemical preheating of automotive-grade and tube steels in the ladle



The converter shop at the Severstal’ Metallurgical Combine has developed and introduced a unit for the chemical preheating of steel in pouring ladles. When the filled ladle arrives at the steel-finishing unit, the steel is blown with argon in accordance with existing procedures. Measurements of temperature are then used to evaluate the need for chemical heating of the steel. The mass of aluminum to be used for this purpose and the total consumption of oxygen are calculated based on the steel’s temperature and aluminum content. The chemical heating technology can be used in the production of ordinary steels, automobile sheet 08Yu, and tube steel 22GYu. When IF-type automobile sheet is being made, the amount of oxygen used for chemical preheating should be limited to 100 m 3 .



MetallurgistSpringer Journals

Published: Jan 1, 2007

DOI: 10.1007/s11015-007-0019-z

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