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    • 8. 发明申请
    • COOLING DEVICE AND COOLING METHOD FOR HOT STRIP
    • 冷轧装置和冷却方法
    • US20090126439A1
    • 2009-05-21
    • US12226371
    • 2007-07-26
    • Satoshi UeokaAkio FujibayashiNaoki NakataTakashi KurokiShougo Tomita
    • Satoshi UeokaAkio FujibayashiNaoki NakataTakashi KurokiShougo Tomita
    • B21B27/06B21D31/00F28D15/00
    • B21B45/0218B21B45/0233
    • There are provided a cooling device and a cooling method for a hot-rolled strip in which the strip can be uniformly cooled from a leading edge to a trailing edge with coolant by properly realizing a great cooling ability and a stable cooling zone. Specifically, the following three methods are adopted. (1) Round nozzles 14 for ejecting inclined rodlike flows of coolant to a downstream side in the traveling direction of a strip 12 and round nozzles 14 for ejecting inclined rodlike flows of coolant to an upstream side in the traveling direction are arranged on an upper side of the strip 12 so as to oppose each other. (2) Round nozzles 14 for ejecting inclined rodlike flows of coolant from the upstream side of a roller table 9 toward just above the roller table 9 and round nozzles 14 for ejecting inclined rodlike flows of coolant from the downstream side of the roller table 9 toward just above the roller table 9 are arranged on the upper side of the strip 12 so as to each other. (3) Lower cooling nozzles 19 for ejecting coolant from between roller tables toward a lower surface of a strip 12 are provided on the lower side of the strip 12, and cooling nozzles 14 for ejecting inclined rodlike flows of coolant from the upstream side of a position where the coolant ejected from the lower cooling nozzles 19 collides with the strip 12 toward just above the position and cooling nozzles 14 for ejecting inclined rodlike flows from the downstream side of the position toward just above the position are arranged on the upper side of the strip 12 so as to oppose each other.
    • 提供了一种用于热轧带材的冷却装置和冷却方法,其中通过适当地实现大的冷却能力和稳定的冷却区域,可以将带材从前缘到后缘均匀地冷却。 具体来说,采用以下三种方法。 (1)用于将倾斜的棒状的冷却剂流沿着带12的行进方向向下游侧排出的圆形喷嘴14和用于将倾斜的棒状的冷却剂流沿着行进方向喷射到上游侧的圆形喷嘴14布置在上侧 从而彼此相对。 (2)用于从辊台9的上游侧朝向辊台9的正上方排出倾斜的棒状冷却剂流的圆形喷嘴14和用于从辊台9的下游侧朝向 刚好在辊台9的上方被布置在条带12的上侧彼此。 (3)在条带12的下侧设置用于从辊台之间朝向条带12的下表面喷射冷却剂的下部冷却喷嘴19,以及从冷却喷嘴14的上游侧喷出倾斜的棒状的冷却剂流的冷却喷嘴14 从下部冷却喷嘴19排出的冷却剂与带状物12刚好位于上方相撞的位置,冷却喷嘴14将倾斜的棒状流从该位置的下游侧向正上方排出, 条12以彼此相对。