公开(公告)号：US20110240688A1

公开(公告)日：2011-10-06

申请号：US12797947

申请日：2010-06-10

申请人： Arito MIZOBE ,  Kouichi TACHIKAWA

发明人： Arito MIZOBE ,  Kouichi TACHIKAWA

IPC分类号： B22D41/50

CPC分类号： B22D41/50

摘要： It is intended to uniform and straighten a molten steel stream flowing out of a discharge port of an immersion nozzle, and thus suppress mold powder entrapment in the vicinity of the immersion nozzle. The immersion nozzle comprises a tubular-shaped straight nozzle body formed to extend in a vertical longitudinal direction and adapted to allow molten steel from a molten-steel inlet provided at an upper end thereof to pass downwardly therethrough, and a pair of discharge ports provided in a lower portion of the straight nozzle body in bilaterally symmetrical relation and adapted to discharge the molten steel from a lateral surface of the straight nozzle body in a lateral direction. An inner surface of each of the discharge ports has, at least in part or in its entirety, a shape defined by a curved line along which an inner bore of the discharge port in a longitudinal cross-section of the immersion nozzle passing through respective centers of the immersion nozzle and the discharge port is gradually reduced in diameter in a direction from a start position to an end of the discharge port, wherein the curved line is represented by a diameter in the longitudinal cross-section of the immersion nozzle.

摘要翻译： 旨在使从浸入式喷嘴的排出口流出的钢水流均匀化，从而将模具粉末抑制在浸渍喷嘴附近。 浸入式喷嘴包括：管状直喷嘴体，其形成为沿垂直纵向方向延伸并且适于允许来自设置在其上端的钢水入口的钢水向下通过;以及一对排出口， 所述直喷嘴体的下部是双向对称的，并且适于沿着所述直喷嘴体的横向从横向排出钢水。 每个排出口的内表面至少部分地或全部地具有由弯曲线限定的形状，在浸入式喷嘴的纵向截面中，排出口的内孔沿着该曲线线穿过相应的中心 所述浸渍喷嘴和所述排出口的直径在从所述排出口的开始位置到所述末端的方向上逐渐减小，其中所述曲线由所述浸渍喷嘴的纵向截面中的直径表示。

公开(公告)号：US20110017784A1

公开(公告)日：2011-01-27

申请号：US12816713

申请日：2010-06-16

申请人： Arito MIZOBE ,  Hideaki Kawabe ,  Manabu Kimura

发明人： Arito MIZOBE ,  Hideaki Kawabe ,  Manabu Kimura

IPC分类号： B22D41/50

CPC分类号： B22D41/50

摘要： Provided is a molten metal discharge nozzle capable of suppressing turbulence in a molten metal stream passing through an inner bore thereof, with a simple structure. A cross-sectional shape of a wall surface of the inner bore, taken along an axis of the inner bore, comprises a part or an entirety of a curved line expressed by the following formula: log(r(z))=(1/n)×log((Hc+L)/(Hc+z))+log(r(L)) (1), where: 6≧n≧1.5; L is a length of the nozzle; Hc is a calculative hydrostatic head; and r(z) is a radius of the inner bore at a position located a distance z downward from an upper end of the nozzle, wherein, in a graph where the distance z is plotted with respect to a horizontal axis (X-axis) thereof, and a pressure of molten metal at a center of the inner bore in horizontal cross-section at a position located the distance z is plotted with respect to a vertical axis (Y-axis) thereof, an approximation formula of a line on the graph is established without simultaneously including two or more coefficients having opposite signs, and wherein, on an assumption that the line is derived from an approximation formula based on a linear regression, an absolute value of a correlation coefficient of the line is 0.95 or more.

摘要翻译： 提供一种能够以简单的结构抑制通过其内孔的熔融金属流中的湍流的熔融金属排出喷嘴。 沿着内孔的轴线截取的内孔的壁面的横截面形状包括由下式表示的曲线的一部分或全部：log（r（z））=（1 / n）×log（（Hc + L）/（Hc + z））+ log（r（L））（1）其中：6≥n≥1.5; L是喷嘴的长度; Hc是计算静压头; 并且r（z）是位于从喷嘴上端向下一定距离z的位置处的内孔的半径，其中，在相对于水平轴（X轴）绘制距离z的曲线图中， 并且在位于距离z的位置处的水平横截面的内孔中心处的熔融金属的压力相对于其垂直轴（Y轴）绘制，在该方向上的线的近似公式 在没有同时包含具有相反符号的两个或更多个系数的情况下建立图形，并且其中，假设线是基于线性回归的近似公式导出的，则线的相关系数的绝对值为0.95以上。

公开(公告)号：US20090242592A1

公开(公告)日：2009-10-01

申请号：US12403120

申请日：2009-03-12

申请人： Hiroshi Otsuka ,  Arito Mizobe ,  Hisatake Okumura ,  Masahide Yoshida ,  Koji Kido ,  Joji Kurisu

发明人： Hiroshi Otsuka ,  Arito Mizobe ,  Hisatake Okumura ,  Masahide Yoshida ,  Koji Kido ,  Joji Kurisu

IPC分类号： B22D41/50

CPC分类号： B22D41/50

摘要： An immersion nozzle for continuous casting including a tubular body, the tubular body having at the upper end an inlet from which molten steel is introduced into a passage extending from the inlet downward inside the tubular body, the tubular body having a bottom and being depressed in cross section at least at a lower section, the lower section having two narrow sidewalls and two broad sidewalls, the narrow sidewalls having a pair of opposing first outlets communicating with the passage, the bottom having a pair of second outlets communicating with the passage. The lower section has ridges projecting into the passage respectively from the inner surfaces of the broad sidewalls between the pair of first outlets. The second outlets are arranged symmetrically about the axis of the tubular body such that the axes of the second outlets cross each other within the passage.

摘要翻译： 一种用于连续铸造的浸入式喷嘴，包括管状体，所述管状体在上端具有入口，钢管从入口向下延伸到从入口向下延伸的通道，管状体具有底部并被压下 截面至少在下部，下部具有两个窄侧壁和两个宽侧壁，窄侧壁具有与通道连通的一对相对的第一出口，底部具有与通道连通的一对第二出口。 下部具有分别从一对第一出口之间的宽侧壁的内表面突出到通道中的脊。 第二出口围绕管状体的轴线对称地布置，使得第二出口的轴线在通道内相互交叉。

公开(公告)号：US08870041B2

公开(公告)日：2014-10-28

申请号：US13416848

申请日：2012-03-09

申请人： Takahiro Kuroda ,  Jouji Kurisu ,  Hiroki Furukawa ,  Arito Mizobe

发明人： Takahiro Kuroda ,  Jouji Kurisu ,  Hiroki Furukawa ,  Arito Mizobe

IPC分类号： B22D41/50

CPC分类号： B22D41/50

摘要： The immersion nozzle for continuous casting, including a tubular body with a bottom, a pair of first outlets, and a pair of second outlets, wherein at least a lower section of the tubular body has a rectangular flat cross section; the two opposing first outlets are disposed in narrow sidewalls at the lower section; the pair of second outlets is disposed at the bottom; each of the first outlets is partitioned by a partitioning section formed at the first outlet into an upper outlet and a lower outlet; ridges formed between the partitioning sections respectively project into a passage from a wide inner wall of the passage; the pair of second outlets is disposed symmetrically to a central axis of the tubular body such that virtual faces extended from tilted faces of the second outlets intersect with each other in the passage.

摘要翻译： 用于连续铸造的浸入式喷嘴，包括具有底部的管状主体，一对第一出口和一对第二出口，其中管状体的至少下部具有矩形平坦的横截面; 两个相对的第一出口设置在下部的窄侧壁中; 一对第二出口设置在底部; 每个第一出口由形成在第一出口处的分隔部分分隔成上部出口和下部出口; 在分隔部分之间形成的脊部分别从通道的宽内壁突出到通道中; 所述一对第二出口对称地设置在所述管状体的中心轴线上，使得从所述第二出口的倾斜面延伸的虚拟面在所述通道中彼此相交。

公开(公告)号：US20090242163A1

公开(公告)日：2009-10-01

申请号：US12400358

申请日：2009-03-09

申请人： Koji Kido ,  Joji Kurisu ,  Hiroshi Otsuka ,  Arito Mizobe ,  Takahiro Kuroda

发明人： Koji Kido ,  Joji Kurisu ,  Hiroshi Otsuka ,  Arito Mizobe ,  Takahiro Kuroda

IPC分类号： B22D11/10

CPC分类号： B22D41/50

摘要： An immersion nozzle for continuous casting, including (1) a tubular body with a bottom, the tubular body having an inlet for entry of molten steel disposed at an upper end and a passage extending inside the tubular body downward from the inlet, and (2) a pair of opposing outlets disposed in a sidewall at a lower section of the tubular body so as to communicate with the passage, the nozzle comprising: a pair of opposing ridges horizontally projecting into the passage from an inner wall between the pair of outlets, the inner wall defining the passage.

摘要翻译： 一种用于连续铸造的浸入式喷嘴，包括（1）具有底部的管状体，所述管体具有用于进入设置在上端的钢水的入口和从所述入口向下延伸到所述管体内的通道，以及（2 ）一对相对的出口，其设置在所述管状体的下部的侧壁中，以与所述通道连通，所述喷嘴包括：一对相对的脊，其从所述一对出口之间的内壁水平地突出到所述通道中， 内壁限定通道。

公开(公告)号：US5845610A

公开(公告)日：1998-12-08

申请号：US705094

申请日：1996-08-29

申请人： Tokuaki Hatta ,  Hiromi Nakashima ,  Shigeru Imamura ,  Arito Mizobe ,  Shigeki Ishimatsu ,  Akihiro Tachikawa

发明人： Tokuaki Hatta ,  Hiromi Nakashima ,  Shigeru Imamura ,  Arito Mizobe ,  Shigeki Ishimatsu ,  Akihiro Tachikawa

IPC分类号： F22B37/10 ,  F23M5/02 ,  F22B37/24

CPC分类号： F22B37/108 ,  F23M5/02 ,  Y10S122/13

摘要： A refractory protective block protects heat exchange means connecting tubes to fins. The refractory protective block has an inside complementary shape corresponding to the surface shape of the heat exchange means and the refractory protective block is provided with recesses into which projections formed on the tubes are fitted and received. A pair of projections formed on the two adjacent tubes in the heat exchange means are arranged so as to confront each other. The refractory protective block has a high durability which does not break even when heat exchange means expand more than the refractory block at the time of the repetition of heating and cooling and which enable the dispersion of strain at the time of the repetition of expansion and contraction.

摘要翻译： 耐火保护块保护将管连接到翅片的热交换装置。 耐火保护块具有对应于热交换装置的表面形状的内部互补形状，并且耐火保护块设置有凹部，其中形成在管上的突起被安装和接收。 在热交换装置中形成在两个相邻管上的一对突起被布置成彼此面对。 耐火保护块具有高耐久性，即使当热重复加热和冷却时热交换装置比耐火块膨胀时也不会破裂，并且能够在重复膨胀和收缩时使应变分散 。