Apparatus and method to control continuous casting, using electromagnetic brake
AssigneeDanieli & C. Officine Meccaniche SpA
InventorAndrea Carboni
Life of this patent
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Abstract
Apparatus to control continuous casting, including a mold provided with at least one entrance end through which liquid metal is introduced. Furthermore, the apparatus to control continuous casting includes at least one electromagnetic brake associated with the mold, configured to induce in the liquid metal recirculation flows, and a control and command unit connected at least to the electromagnetic brake and configured to manage the functioning thereof.
Claims13
Apparatus to control continuous casting, said apparatus comprising a mold provided with at least one entrance end through which liquid metal is introduced, at least one electromagnetic brake associated with the mold and configured to induce in said liquid metal recirculation flows, and a control and command unit connected at least to said electromagnetic brake and configured to manage functioning thereof, wherein the apparatus comprises detection means located, at least in a condition of use, above the at least one entrance end and each configured to detect at least a reciprocal distance with respect to a level of said liquid metal, wherein said control and command unit is also connected to said detection means to acquire data of each distance from each detection mean, wherein said control and command unit is configured to process the data of each distance from each detection mean in relation to positioning of said detection means, determine characteristic parameters of a development of a surface profile of said liquid metal based upon each distance, and command a drive at least of said electromagnetic brake based on said characteristic parameters of the development of said surface profile in order to determine predefined recirculation flows of the liquid metal, and wherein the characteristic parameters of the development of said surface profile of said liquid metal comprise an evolution speed of the surface profile and instant deviations from a temporal average for each detection mean.
A method to control continuous casting of a liquid metal, comprising:
- introducing the liquid metal through an entrance end of a mold,
- managing, by a control and command unit, functioning of an electromagnetic brake associated with the mold, to induce in liquid metal recirculation flows,
- detecting data of at least a reciprocal distance with respect to a level of the liquid metal by means of detection means located, at least in a condition of use, above the entrance end,
- processing said data of at least a distance in relation to position of said detection means,
- determining characteristic parameters of a development of a surface profile, wherein the characteristic parameters comprise an evolution speed of the surface profile and instant deviations from a temporal average for each detection mean,
- driving at least of said electromagnetic brake based on said characteristic parameters of the development of said surface profile in order to determine predefined recirculation flows of the liquid metal.
Dependencies are inferred from the claim text.