METHOD AND DEVICE FOR COOLING HIGH TEMPERATURE STEEL MATERIAL

PURPOSE:To prevent uneven cooling of a high temp. steel material without decreasing cooling efficiency by inclining the spraying direction of the water plate- like cooling water flow from a pair of nozzle headers in the directions spacing from each other. CONSTITUTION:A pair of nozzle headers 2, 2&#...

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Bibliographische Detailangaben
Hauptverfasser: NAGAYA MASAHITO, IWANAMI NORIO, SATOU MASAKI
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To prevent uneven cooling of a high temp. steel material without decreasing cooling efficiency by inclining the spraying direction of the water plate- like cooling water flow from a pair of nozzle headers in the directions spacing from each other. CONSTITUTION:A pair of nozzle headers 2, 2' are supported freely oscillatably in the traveling direction of a rolled material 1. Cylinders 11 and the base part of the nozzles are connected by bars 10 provided across frames 7 so that the headers can be oscillated to any position. The header 2' is oscillated clockwise and the header 2 counterclockwise as much as required so that the distance LB between the colliding positions of curtain flow 12, 12' is made larger than the distance LT between the centers of the headers 2, 2'. Then even if the distance LA between the extreme downstream position of an interference line A and the colliding position of the flow 12' is larger than the distance LT between the centers, the line A is prevented from arriving at the colliding position of the flow 12 and the uneven cooling is thus prevented.