Metallurgy and Technology of Steel Castings

by

Jan Głownia

DOI: 10.2174/97816810857081170101
eISBN: 978-1-68108-570-8, 2017
ISBN: 978-1-68108-571-5





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Secondary Metallurgy for Small Ladles

- Pp. 112-138 (27)

Jan Głownia

Abstract

Improvement in the quality of cast steel is based on the application of secondary metallurgy methods. The differences in the techniques used partly result from the capacities of melting furnaces and ladles. In small casting ladles, the temperature of the molten steel falls much faster, which requires attention to timescales with respect to argon blowing or standing in vacuum, or else additional heating of the metal in the ladle. For these reasons, typical techniques for foundries have been presented, such as argon stirring, AOD, VOD, VD, LF and DETEM. For each technique, the benefits and effects of its use in practice have been given.

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