Mineralogical evaluationof ladle slags at voestalpine Stahl GmbH

A large number of steel grades are produced at voestalpine Stahl GmbH. The ladle slag must meet different requirements according to the specific steel grade. The mineralogical structure of ladle slag is highly dependent on its basicity. At a basicity of 1·2, both depending on the SiO content. This enables the metallurgist to specifically adjust the ladle slag according to the steel grade requirements. Knowledge of the slag condition is essential in order to achieve certain metallurgical results, such as desulphurisation or degree of oxide purity.