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1. 发明专利

JP2005125337A Immersion nozzle for thin cast slab continuous casting equipment and casting method 有权
标题翻译：薄壁连铸连铸设备注浆喷嘴
公开(公告)号：JP2005125337A
公开(公告)日：2005-05-19
申请号：JP2003360759
申请日：2003-10-21
申请人： Nippon Steel Corp , Posco , ポスコ , 新日本製鐵株式会社
发明人： HOJO MASATAKE , KOBAYASHI HIDEAKI , ISAKI HIROSHI , NAKAHO MASATERU , CHON HYUNTAE , CHON HANNAMU , LEE CHORUGYU , KIM WANSUE
IPC分类号： B22D11/06 , B22D11/10
摘要： PROBLEM TO BE SOLVED: To form a solidified shell having a uniform thickness by stabilizing a flow of molten metal discharged from an immersion nozzle under a favorable condition, and to prevent segregation of element and mixing of scum, in continuous casting of a thin cast slab by use of a moving mold such as a twin drum or a twin belt.
SOLUTION: In an equipment to continuously cast molten metal supplied to a molten metal well 3 via an immersion nozzle 6 into a thin cast slab, a number of discharge holes 10a and 10b in the immersion nozzle 6 are provided on a side facing a cooling drum 1, and directions of the discharge holes are tilted toward both left and right sides oppositely from the width center of the immersion nozzle 6 as a boundary. As a result, the flow of the molten metal discharged from the discharge holes 10a and 10b collides tiltedly against the solidified shell, which prevents remelting of the shell. Further, the flow of the molten metal proceeds to both left and right side banks 2 from the width center of the immersion nozzle 6 as a boundary, which prevents mixing of the scum floating on the molten metal well 3 into the cast slab.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了通过在有利条件下稳定从浸渍喷嘴排出的熔融金属的流动来形成具有均匀厚度的凝固壳体，并且为了防止元件的分离和浮渣的混合，在连续铸造中薄板坯通过使用诸如双筒或双带的移动模具。解决方案：在将通过浸没喷嘴6供给到熔融金属井3的熔融金属连续铸造成薄铸坯的设备中，浸没喷嘴6中的排出孔10a和10b设置在面向冷却滚筒1，并且排出孔的方向作为边界从与浸入式喷嘴6的宽度中心相反的左右两侧倾斜。结果，从排出孔10a和10b排出的熔融金属的流动相对于凝固的壳体倾斜地冲击，这防止了壳体的再熔化。此外，熔融金属的流动作为边界从浸入式喷嘴6的宽度中心前进到左侧和右侧的两个堤岸2，从而防止浮在熔融金属井3上的浮渣混入铸造板坯中。版权所有（C）2005，JPO＆NCIPI

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