Elena Brandaleze, Alejandro Martín, Edgardo Benavidez, Diego Russo, Diego Rodríguez, and Carlos González Oliver:
Characterization of mould powders used in continuous casting
Mould fluxes, metallurgical process, continuous casting, lubrication, heat transfer
Mould fluxes are used in steel continuous casting with the main objective of bringing adequate lubrication and heat extraction into the mould. Both parameters have decisive influence on both the surface quality and the structural characteristics required by different steels. In the present work four mould powders were studied with the aim of evaluating their aptitude under different process conditions. Some mould flux properties were determined by laboratory tests and others using previous models.
Then, these properties were analyzed to decide which powder is adequate to use according to the continuous casting conditions.
The performance of these powders was correlated with heat transfer and temperature variability data obtained in the plant during the continuous casting process. Consequently, according to the carbon content of steel to be processed, the most adequate mould powder could be selected.
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