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    Asymmetric slab nozzle and metallurgical assembly for casting metal including it
    1.
    发明授权
    Asymmetric slab nozzle and metallurgical assembly for casting metal including it 有权

    公开(公告)号：US11103921B2

    公开(公告)日：2021-08-31

    申请号：US16609010

    申请日：2018-05-14

    申请人： VESUVIUS U S A CORPORATION

    发明人： Johan Richaud ,  Martin Kreierhoff

    IPC分类号： B22D41/50 ,  B22D11/103 ,  B22D41/54 ,  B22D41/56

    摘要： A slab nozzle for use in a continuous slab casting installation is characterized by a specific geometry of the outer wall of a downstream portion thereof which is inserted in a slab mould cavity. The specific geometry promotes a “round-about” effect whereby converging opposite streams of molten metal flowing towards two opposite flanks of the slab nozzle are each preferentially deviated towards one side of the slab nozzle where they can freely flow through the narrow channels formed between the slab nozzle and the slab mould cavity wall without impinging with one another. This prolongs the service life of the slab nozzle by substantially reducing the erosion rate of the outer wall thereof.

    REFRACTORY MATERIAL AND CASTING NOZZLE
    3.
    发明申请
    REFRACTORY MATERIAL AND CASTING NOZZLE 有权
    耐火材料和铸造喷嘴

    公开(公告)号：US20160297003A1

    公开(公告)日：2016-10-13

    申请号：US14777909

    申请日：2014-03-19

    申请人： KROSAKIHARIMA CORPORATION

    发明人： Katsumi MORIKAWA ,  Akinari SASAKI ,  Taro MAKINO ,  Ling LI

    IPC分类号： B22D41/54 ,  C04B35/01 ,  C04B35/043

    CPC分类号： B22D41/54 ,  C04B35/013 ,  C04B35/043 ,  C04B35/0435 ,  C04B35/106 ,  C04B35/482 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/34 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/401 ,  C04B2235/402 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/428 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/72 ,  C04B2235/9607

    摘要： Provided is a refractory material having both excellent erosion/corrosion resistance and thermal shock resistance, which has hardly been obtainable by conventional techniques, and a casting nozzle using the refractory material. The refractory material of the present invention contains: MgO in an amount of 40 mass % or more; a free carbon component in an amount of 4 to 30 mass %; and one or more selected from the group consisting of B2O3, P2O5, SiO2 and TiO2, in a total amount of 0.3 to 3 mass %, with the remainder being at least one other type of additional refractory component, wherein a void layer exists in an interface between a carbon-containing matrix microstructure residing at least on opposite sides of a maximum-size one of a plurality of MgO-containing particles in the refractory material, and the maximum-size MgO-containing particle, wherein a sum of respective thicknesses of the void layer at two positions on the opposite sides is 0.2 to 3.0% in terms of a ratio with respect to a particle size of the maximum-size MgO-containing particle, and wherein an inorganic compound comprised of MgO and the one or more selected from the group consisting of B2O3, P2O5, SiO2 and TiO2 exists in an entirety or a part of a surface of each of the plurality of MgO-containing particles.

    摘要翻译： 本发明提供耐腐蚀性，耐热冲击性优异的耐火材料，通过现有技术难以获得的耐火材料，以及使用该耐火材料的铸造用喷嘴。 本发明的耐火材料含有：40质量％以上的MgO， 4质量％以上的游离碳成分; 和选自B 2 O 3，P 2 O 5，SiO 2和TiO 2的一种或多种，​​总量为0.3〜3质量％，其余为至少一种其它类型的附加难熔成分，其中空隙层存在于 位于至少位于耐火材料中的多个含MgO颗粒中的最大尺寸的一个的相对侧上的含碳基体微结构和最大尺寸的含MgO颗粒之间的界面，其中， 在相对侧的两个位置的空隙层的比例相对于最大尺寸的含MgO颗粒的粒径的比率为0.2〜3.0％，其中由MgO组成的无机化合物和选自 从由B 2 O 3，P 2 O 5，SiO 2和TiO 2组成的组中，存在于多个含MgO颗粒中的每一个的整个或部分表面。

    Method for manufacturing immersion nozzle less susceptible to deposition of alumina for use in continuous casting
    4.
    发明申请
    Method for manufacturing immersion nozzle less susceptible to deposition of alumina for use in continuous casting 审中-公开
    用于制造浸入式喷嘴的方法不易于连续铸造中使用的氧化铝沉积

    公开(公告)号：US20050274486A1

    公开(公告)日：2005-12-15

    申请号：US10524622

    申请日：2003-08-19

    申请人： Koji Ogata ,  Donald Hoover

    发明人： Koji Ogata ,  Donald Hoover

    IPC分类号： B22D11/10 ,  B22D41/54 ,  C04B35/057 ,  C04B35/48 ,  C04B41/45 ,  C04B41/85 ,  B22D11/00

    CPC分类号： C04B41/009 ,  B22D41/54 ,  C04B35/057 ,  C04B41/4584 ,  C04B41/85 ,  C04B2111/00887 ,  C04B2235/3206 ,  C04B2235/80 ,  C04B41/0072 ,  C04B41/4519 ,  C04B41/4556 ,  C04B41/501 ,  C04B35/06

    摘要： Disclosed is a method of producing an immersion nozzle for continuous casting, which comprises integrally molding a first zirconia-graphite compound applied to a powder-line portion of the nozzle, and a second compound applied to at least an inner hole portion of the nozzle. The second compound includes 10 mass % or more of clinker particles each containing CaO as a mineral phase, and the surface of at least a part of the clinker particles is subjected to an anti-hydration treatment, such as a heat treatment to be performed under a CO2 atmosphere to convert CaO to CaCO3. The method of the present invention can suppress volume expansion caused by the reaction between CaO and water released from resin added as binder, so as to prevent the occurrence of cracks during a burning process of the molded piece.

    摘要翻译： 公开了一种连续铸造用浸渍式喷嘴的制造方法，其特征在于，将施加于所述喷嘴的粉末部分的第一氧化锆 - 石墨化合物和施加在所述喷嘴的至少内部孔部分上的第二化合物一体成型。 第二化合物包含10质量％以上的各自含有CaO作为矿物相的熟料粒子，至少部分熟料粒子的表面进行防水处理，例如在 CO 2气氛以将CaO转化为CaCO 3。 本发明的方法可以抑制由作为粘合剂添加的树脂释放的CaO和水之间的反应引起的体积膨胀，以防止在模制件的燃烧过程中出现裂纹。

    Nozzle for continuous casting
    5.
    发明授权
    Nozzle for continuous casting 失效
    喷嘴用于连铸

    公开(公告)号：US5908577A

    公开(公告)日：1999-06-01

    申请号：US915600

    申请日：1997-08-21

    申请人： Takashi Yamamura ,  Osamu Nomura ,  Masamichi Takai ,  Toshio Horiuchi

    发明人： Takashi Yamamura ,  Osamu Nomura ,  Masamichi Takai ,  Toshio Horiuchi

    IPC分类号： B22D41/54 ,  B22D11/10

    CPC分类号： B22D41/54

    摘要： A nozzle for continuous casting which is prevented from clogging due to alumina deposition is disclosed, wherein the inner wall member is made of a refractory material having a carbon content of 1% to 10% by weight; a material other than carbon in the refractory material has a grain size of not more than 420 .mu.m; the inner wall member is integrally molded with the outer nozzle body to form an integral structure; and said inner wall member has a thickness of 2 mm to 12 mm.

    摘要翻译： 公开了一种用于连续铸造的喷嘴，其防止由于氧化铝沉积而堵塞，其中内壁构件由碳含量为1重量％至10重量％的耐火材料制成; 耐火材料中碳以外的材料的晶粒尺寸不大于420μm; 内壁构件与外部喷嘴体整体成型，形成一体的结构; 所述内壁部件的厚度为2mm〜12mm。

    Continuous caster and method of using the same
    7.
    发明授权
    Continuous caster and method of using the same 失效
    连铸机及其使用方法

    公开(公告)号：US5571440A

    公开(公告)日：1996-11-05

    申请号：US533263

    申请日：1995-09-25

    申请人： C. Edward Eckert

    发明人： C. Edward Eckert

    IPC分类号： B22D11/06 ,  B22D41/54 ,  B22D41/50

    CPC分类号： B22D41/54 ,  B22D11/0642

    摘要： Disclosed is an improved casting tip for a nozzle of a continuous caster, the tip designed for transferring molten metal from a molten metal reservoir to a continuously advancing mold as formed, for example, by twin belts, rolls or block casters for casting molten metal into solid form. The casting tip is comprised of a top wall, a bottom wall oppositely disposed from top wall, a first side wall, and a second side wall oppositely disposed from the first side wall, the first and second side walls joined to the top and bottom walls to form a passage therebetween having an entrance and an exit. The passage has a top wall inside surface having a first portion that first converges towards the bottom wall starting at the entrance and has a second portion that diverges from the bottom wall to the exit, the top wall first portion having a length less than the top wall second portion length. Further, the passage has a bottom wall inside surface having a first portion that first converges towards the top wall starting at the entrance and has a second portion that diverges from the top wall to the exit, the bottom wall first portion having a length less than the bottom wall second portion length. The top wall and bottom wall converge and diverge about substantially an equal amount from a center line from the entrance to the exit of the passage.

    摘要翻译： 公开了一种用于连续铸造机喷嘴的改进的铸造尖端，其设计用于将熔融金属从熔融金属储存器转移到例如通过用于铸造熔融金属的双带，辊或块脚轮形成的连续前进的模具 固体形式。 铸造端头包括顶壁，与顶壁相对设置的底壁，第一侧壁和与第一侧壁相对设置的第二侧壁，第一和第二侧壁连接到顶壁和底壁 在其间形成具有入口和出口的通道。 通道具有顶壁内表面，其具有第一部分，该第一部分首先从入口开始朝向底壁会聚，并且具有从底壁向出口分叉的第二部分，顶壁第一部分的长度小于顶部 墙壁第二部分长度。 此外，通道具有底壁内表面，其具有从入口开始朝向顶壁会聚的第一部分，并且具有从顶壁向出口分叉的第二部分，底壁第一部分的长度小于 底壁第二部分长度。 顶壁和底壁从从通道的入口到出口的中心线会聚并基本上相等地发散。

    Molten steel pouring nozzle
    8.
    发明授权
    Molten steel pouring nozzle 失效
    熔钢浇注嘴

    公开(公告)号：US5348203A

    公开(公告)日：1994-09-20

    申请号：US110088

    申请日：1993-08-20

    申请人： Mitsuru Andoh ,  Noriaki Yamauchi

    发明人： Mitsuru Andoh ,  Noriaki Yamauchi

    IPC分类号： B22D11/10 ,  B22D41/54 ,  C04B35/103 ,  C04B35/66

    CPC分类号： C04B35/6303 ,  B22D41/54 ,  C04B35/66 ,  C04B2111/00887 ,  C04B2235/3217 ,  C04B2235/3418 ,  C04B2235/3826 ,  C04B2235/422 ,  C04B2235/9676

    摘要： A molten steel pouring nozzle which comprises: a nozzle body comprising an alumina-graphite refractory, having, along the axis thereof, a bore through which molten steel flows; and an outer refractory layer arranged on an outside portion of the nozzle body so as to be integral with the nozzle body and to be flush with an outer surface thereof, the outer refractory layer being arranged on a portion of the outside portion of the nozzle body, which portion is in contact, when a lower portion of the molten steel pouring nozzle is immersed into molten steel, with the open air without being immersed into the molten steel, and the outer refractory layer consisting essentially of:______________________________________ alumina (Al.sub.2 O.sub.3) from 40 to 75 wt. %, carbon (C) from 10 to 30 wt. %, silica (SiO.sub.2) from 1 to 30 wt. %, silicon carbide (SiC) from 1 to 20 wt. %, and low-melting glass from 1 to 10 wt. %. ______________________________________

    摘要翻译： 一种钢水浇注嘴，其包括：喷嘴体，其包括氧化铝 - 石墨耐火材料，所述氧化铝 - 石墨耐火材料沿其轴线具有钢水流过的孔; 以及外部耐火层，其设置在所述喷嘴体的外侧部分上，以与所述喷嘴体一体形成并与其外表面齐平，所述外耐火层设置在所述喷嘴体外部的一部分上 当钢水浇注嘴的下部浸没在钢水中时，该部分接触，露出的空气不浸入钢水中，外部耐火层基本上由以下组成： - 氧化铝（Al 2 O 3） 40至75wt。 ％， - 碳（C）10〜30wt。 ％， - 硅酸（SiO 2）1〜30wt。 ％，碳化硅（SiC）1〜20wt。 ％，和 - 低熔点玻璃1至10wt。 ％。 -

    Multi-stepped submerged nozzle for continuous casting
    9.
    发明授权
    Multi-stepped submerged nozzle for continuous casting 失效
    多级浸入式喷嘴用于连续铸造

    公开(公告)号：US5328064A

    公开(公告)日：1994-07-12

    申请号：US934496

    申请日：1992-10-21

    申请人： Yasutoshi Nanba ,  Kozo Kanamaru ,  Yukinobu Kurashina

    发明人： Yasutoshi Nanba ,  Kozo Kanamaru ,  Yukinobu Kurashina

    IPC分类号： B22D11/10 ,  B22D41/50 ,  B22D41/54

    CPC分类号： B22D41/50 ,  B22D41/54

    摘要： The nozzle for continuous casting has a plurality of steps in the molten steel pouring hole of the nozzle. The dimension of the inside diameters of the steps to the inside diameter d of the main pipe is d.sub.1 >d.sub.2 >d or d.sub.1 >d.sub.2 d.sub.3 >d, the inside diameter d.sub.2 or d.sub.3 immediately above the molten steel pouring outlet is d+10 mm.gtoreq.d.sub.2 or d.sub.3, and the material of the inner peripheral wall near the pouring outlet is boron nitride-carbon.

    摘要翻译： PCT No.PCT / JP91 / 00589 Sec。 371日期：1992年10月21日 102（e）日期1992年10月21日PCT 1991年4月30日PCT PCT。 WO91 / 17008 PCT出版物 日期为1991年11月14日。连续铸造用喷嘴在喷嘴的钢水浇注孔中具有多个台阶。 主管内径d与内径d的尺寸为d1> d2> d或d1> d2d3> d，钢水倾倒出口正上方的内径d2或d3为d + 10mm> / = d2或d3，并且在倾倒出口附近的内周壁的材料是氮化硼 - 碳。