Abstract
Lubrication in CC moulds controls the shear forces to the sensible strand surface. Since that friction forces are depending on casting speed and the flux behaviour, a study on lubrication have experimentally been carried out when the slag is in contact with liquid steel. Particularly, higher amounts of aluminium in the steel as for pure de-oxidation lead to remarkable redox-reactions and to modified casting slags for the gap between strand and mould. Friction coefficients have been determined and applied to several strand shapes and castings velocities.
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