Controlling the continuous casting of metals

Details Controlling the continuous casting of metals Controlling the continuous casting of metals

B - Operations, Transporting

22

D

22/167, 22/51, 3

B22D 11/16 (2006.01) B22D 11/07 (2006.01) B22D 11/111 (2006.01) B22D 11/20 (2006.01)

Patent

CA 1156423

A B S T R A C T A signal S representing the frictional forces arising ?etween the strand and the mould during a continuous casting operation is provided by selecting according to at least two frequency bands, e.g. 0.2 to 3 Hz and 3 to 10 Hz, the constituents of a signal, e.g. from a mould-movement sensor, representing the frictional forces. The signal S is preferably a signal representing the ratio of the demodulated constituents. Any abnormal behavior of at least one Or a plurality of continuous casting factors, particularly those related to the covering, material on the liquid metal, is detected by comparing the signal S with an analog-type reference signal considered as ideal for satisfactory casting. The abnormal behaviour is corrected by modifying the factor concerned so that the signal S comes as close as possible to the reference signal.

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