METHOD FOR DECIDING CLOGGING IN COOLING-WATER FEED PIPING OF CONTINUOUS CASTING EQUIPMENT

PROBLEM TO BE SOLVED: To identify and decide a zone where nozzle clogging is caused or a position of cooling-water feed piping, connected to nozzles, where the nozzle clogging is caused, by obtaining correlative information of nozzle clogging from measurement of temperature distribution in the surfa...

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Bibliographische Detailangaben
Hauptverfasser:	SENDA HIDEAKI, FUJITA KIYOHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To identify and decide a zone where nozzle clogging is caused or a position of cooling-water feed piping, connected to nozzles, where the nozzle clogging is caused, by obtaining correlative information of nozzle clogging from measurement of temperature distribution in the surface of a slab.SOLUTION: There is provided a method for identifying a clogged position in the cooling-water feed piping of a continuous casting machine. The continuous casting machine is provided with a plurality of pieces of cooling-water feed piping for each cooling zone in the secondary-cooling region thereof. The cooling-water feed piping is connected to a plurality of secondary-cooling spray nozzles that is arranged symmetrically in the width direction of a slab for each cooling zone of the secondary-cooling region. The method has: a step of measuring temperature distribution in the surface of a slab with a radiation thermometer immediately after the slab passes the secondary-cooling region; and a step of deciding whether the temperature distribution is symmetrical or not in the width direction of the slab.