In steelmaking industries, hydrogen has been dissolved in liquid steel by various sources such as moisture of refractory, addition of de-oxidation and alloying, lime and atmospheric water.[1] Especially, in summer, the hydrogen content in the melt increases due to higher water vapor pressure. During refining process the hydrogen dissolved in liquid steel can be controlled by vacuum degassing, in which Argon gas inject from the bottom of vessel to enhance the hydrogen removal. Therefore, this study has focused on the hydrogen removal in liquid steel during vacuum degassing in ASEA-SKF ladle furnace.
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