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1. 发明专利

JP2000343208A SLIDING IMMERSED NOZZLE 失效
公开(公告)号：JP2000343208A
公开(公告)日：2000-12-12
申请号：JP15578799
申请日：1999-06-02
申请人： KUROSAKI HARIMA CORP , NIPPON STEEL CORP
发明人： INOUE YUKIO , MIWA MASUYUKI , HIRATANI ISAO , SUKENARI SHIRO , OTSUKA YOSHIAKI
IPC分类号： B22D11/10 , B22D41/50 , B22D41/56
摘要： PROBLEM TO BE SOLVED: To prevent generation of cracks of a neck part without leakage of steel from a sliding surface, and impeding the sliding condition in the case of changing an immersed nozzle provided with the sliding surface to be applied to a device to change the immersed nozzle without interrupting a casting work. SOLUTION: A castable refractory material is filled in a gap between both ends of a head part along at least the sliding direction of an immersed nozzle 1 and a metal case, a regular-shaped refractory material is arranged thereon, a sliding surface flush with a sliding surface 3 on an upper surface of the head part of the immersed nozzle 1 is formed on the upper surface of this refractory, and a releasing material is interposed on a contact surface of the refractory arranged in the gap between both ends of the head part along at least the sliding surface of the immersed nozzle 1 and the metal case with both ends of the head part of the immersed nozzle.

2. 发明专利

JP2008178899A Immersion nozzle for continuous casting 审中-公开
标题翻译：连铸喷嘴
公开(公告)号：JP2008178899A
公开(公告)日：2008-08-07
申请号：JP2007015603
申请日：2007-01-25
申请人： Kurosaki Harima Corp , 黒崎播磨株式会社
发明人： OKUMURA HISATAKE , YOSHIMOTO KENJI , HIRATANI ISAO , SHIOKAWA HIROYUKI , MIZOBE ARIHITO
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide an integrated immersion nozzle in which the breakage of a neck portion and the occurrence of crack thereon can be prevented.
SOLUTION: The immersion nozzle for continuous casting (the integrated immersion nozzle) has a structure such that: an upper end surface formed with an introducing hole 1a for molten metal is a flat surface and the upper end portion is formed as an upper platy portion 1; beneath the upper platy portion 1, a tubular portion having an inner hole 2a as a molten metal flowing passage is formed integrally with the upper platy portion 1; the lower surface of the upper platy portion 1 and the upper portion of the tubular portion 2 are covered with metal cases 4; and the flat surface at the upper end of the upper portion platy portion 1 is pressurized to and in close contact with the flat surface at the lower end of other refractory set above the flat surface of the upper end of the upper portion platy portion 1, the immersion nozzle being held by a holding device while using, as a holding portion, a lower surface in contact with the two opposing side faces 1b and 1b of the upper platy portion 1 and being attached to/detached from, by slide motion, a device for controlling the flowing-rate of the molten metal. In the immersion nozzle for continuous casting, the metal case 4 at the upper portion of the tubular portion 2 and the metal case 4 at the lower surface of the upper portion platy portion 1 are jointed and ribs 8 for reinforcing are provided which extend outward from the tubular portion starting from the joint portion of both metal cases 4.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以防止颈部断裂和其上发生龟裂的综合浸入式喷嘴。＆lt; P＆gt;解决方案：连续铸造用浸入式喷嘴（整体式浸入式喷嘴）具有以下结构：形成有用于熔融金属的引入孔1a的上端面为平坦面，上端部形成为上部板状部分1; 在上板状部分1的下面，具有作为熔融金属流动通道的内孔2a的管状部分与上板状部分1一体形成; 上部片状部分1的下表面和管状部分2的上部被金属外壳4覆盖; 并且上部板状部1的上端的平坦面被加压并与上部板状部1的上端的平坦面的上方的其他耐火设备的下端的平坦表面紧密接触，浸渍喷嘴由保持装置保持，同时使用与上部片状部分1的两个相对的侧面1b和1b接触的下表面，并且通过滑动运动附着/分离，用于控制熔融金属的流动速率的装置。在用于连续铸造的浸入式喷嘴中，管状部分2的上部的金属壳体4和上部片状部分1的下表面处的金属壳体4被接合，并且提供用于加强的肋8，从两个金属盒4的接合部分开始的管状部分。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JPH06198400A CASTING METHOD OF CHANGING STEEL KIND DURING CONTINUOUS CASTING 失效
公开(公告)号：JPH06198400A
公开(公告)日：1994-07-19
申请号：JP34962892
申请日：1992-12-28
申请人： NIPPON STEEL CORP
发明人： HIRATANI ISAO , UCHIDA KIYOMICHI , NAGANO HONICHI , KAWAMURA KOZO
IPC分类号： B22D11/10 , B22D11/18 , B22D11/22
摘要： PURPOSE:To provide the casting method of changing steel kind so as to reduce producing an intermediate component cast slab by making a molten steel in tundish to a minimum quantity with reducing casting speed after finishing the preceding ladle in the continuous casting consisting of different kinds of steel. CONSTITUTION:After finishing of pouring from the preceding ladle to the tundish, casting is executed with normal speed until reaching the prescribed remaining quantity, successively, the casting speed is reduced to 0.10-0.60m/min, at 0.13-0.17m/min and reaching the slag not to flow out, the present ladle starts to pour. Subsequently, it is poured so as to reach the maximum quantity into tundish and quickly accelerate to reach the normal speed at the present ladle, by executing the secondary cooling zone under mold in such way as strong cooling for the preceding ladle and the combination of strong/slow cooling, the cast slab with intermediate component is made to minimum.

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