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    Low-carbon steel slab producing method
    6.
    发明授权
    Low-carbon steel slab producing method 有权
    低碳钢板生产方法

    公开(公告)号：US09149867B2

    公开(公告)日：2015-10-06

    申请号：US13568200

    申请日：2012-08-07

    Applicant: Masafumi Miyazaki ,  Hideaki Yamamura ,  Satoru Mineta

    Inventor： Masafumi Miyazaki ,  Hideaki Yamamura ,  Satoru Mineta

    IPC: B22D1/00 ,  B22D11/00 ,  B22D11/108 ,  B22D11/11 ,  C21C7/06 ,  C21C7/00 ,  C22C38/00 ,  C22C38/14

    CPC classification number: B22D1/00 ,  B22D11/00 ,  B22D11/108 ,  B22D11/11 ,  C21C7/0006 ,  C21C7/06 ,  C22C38/005 ,  C22C38/14

    Abstract: A low-carbon steel slab producing method includes: adding Ti to a molten steel decarbonized to have a carbon concentration of 0.05 mass % or less, and subsequently adding at least one of La and Ce to adjust a constitution, and producing a smelted molten steel; and pouring the smelted molten steel into a casting mold via a tundish; wherein at least one of La and Ce in a total amount of 0.2 to 1.2 times an increased amount of oxygen in the smelted molten steel during contained in the tundish is added to the smelted molten steel in the tundish, so as to obtain a steel slab having inclusions which contain oxides of Ti and at least one of La and Ce as chief components, and so as to make a composition of each of the inclusions have a mass ratio of 0.1 to 0.7, in terms of (La2O3+Ce2O3)÷TiOn (n=1˜2).

    Abstract translation: 一种低碳钢板坯的制造方法，其特征在于，在脱碳碳钢中添加Ti至碳质浓度为0.05质量％以下，然后添加La和Ce中的至少一种来调节构成，并且生产熔融钢水 ; 并通过中间包将熔炼的钢水倒入铸模中; 其特征在于，在所述中间包中含有的熔融钢水中，在所述中间包中含有的氧化合金量的0.2〜1.2倍量中的至少一种添加到所述中间包中的所述熔融钢水中，从而得到钢坯 具有包含Ti的氧化物和La和Ce中的至少一种作为主要成分的夹杂物，并且为了使每种夹杂物的组成以（La 2 O 3 + Ce 2 O 3）÷TiO n计的质量比为0.1〜0.7 （n = 1〜2）。

    CONTINUOUS CASTING PROCESS OF METAL
    7.
    发明申请
    CONTINUOUS CASTING PROCESS OF METAL 审中-公开
    金属连续铸造工艺

    公开(公告)号：US20150158078A1

    公开(公告)日：2015-06-11

    申请号：US14385046

    申请日：2012-03-28

    Applicant: Mathieu Brandt ,  Jean-Paul Fischbach ,  Paul Naveau

    Inventor： Mathieu Brandt ,  Jean-Paul Fischbach ,  Paul Naveau

    IPC: B22D11/11 ,  B22D11/103 ,  B22D11/04

    CPC classification number: B22D11/11 ,  B22D11/04 ,  B22D11/103 ,  B22D11/108 ,  B22D41/58

    Abstract: A continuous casting process of a steel semi-product is provided. The process includes a step of casting using a hollow jet nozzle located between a tundish and a continuous casting mould. The nozzle includes, in its upper part, a dome for deflecting the liquid metal arriving at the inlet of the nozzle towards the internal wall of the nozzle, defining an internal volume with no liquid metal. A simultaneous step of injecting powder through a hole of the dome occurs. The powder has a particle size of 200 μm or less. The dome includes a first device to inject the powder without any contact with the dome and a second device to avoid sticking or sintering of the powder onto the first device.

    Abstract translation: 提供钢半成品的连续铸造工艺。 该方法包括使用位于中间包和连续铸模之间的中空喷嘴的铸造步骤。 喷嘴在其上部包括用于将到达喷嘴入口的液态金属偏转到喷嘴的内壁的圆顶，从而限定不含液态金属的内部容积。 同时通过圆顶孔注入粉末的步骤。 粉末的粒径为200μm以下。 圆顶包括用于将粉末注入而不与圆顶接触的第一装置和第二装置，以避免将粉末粘附或烧结到第一装置上。

    Melting furnace including wire-discharge ion plasma electron emitter
    8.
    发明授权
    Melting furnace including wire-discharge ion plasma electron emitter 有权
    熔炼炉包括放电离子等离子体电子发射体

    公开(公告)号：US08642916B2

    公开(公告)日：2014-02-04

    申请号：US12055415

    申请日：2008-03-26

    Applicant: Robin M. Forbes Jones ,  Richard L. Kennedy

    Inventor： Robin M. Forbes Jones ,  Richard L. Kennedy

    IPC: B23K31/00 ,  C22B9/04 ,  C22B9/22

    CPC classification number: F27D11/00 ,  B22D11/11 ,  C22B9/04 ,  C22B9/226 ,  C22B9/228 ,  F27B3/08 ,  F27B3/20 ,  F27B5/04 ,  F27D99/0006 ,  H01J37/077 ,  H01J37/305 ,  H01J2237/3128

    Abstract: An apparatus for melting an electrically conductive metallic material includes a vacuum chamber and a hearth disposed in the vacuum chamber. At least one wire-discharge ion plasma electron emitter is disposed in or adjacent the vacuum chamber and is positioned to direct a wide-area field of electrons into the vacuum chamber, wherein the wide-area electron field has sufficient energy to heat the electrically conductive metallic material to its melting temperature. The apparatus may further include at least one of a mold and an atomizing apparatus which is in communication with the vacuum chamber and is positioned to receive molten material from the hearth.

    Abstract translation: 用于熔化导电金属材料的设备包括设置在真空室中的真空室和炉床。 至少一个线放电离子等离子体电子发射器设置在真空室中或其附近，并且被定位成将电场的大面积区域引导到真空室中，其中广域电子场具有足够的能量以加热导电 金属材料达到其熔融温度。 该装置还可以包括模具和雾化装置中的至少一个，该模具和雾化装置与真空室连通并定位成从炉床接收熔融材料。

    GRAIN REFINERS FOR STEEL-MANUFACTURING METHODS AND USE
    9.
    发明申请
    GRAIN REFINERS FOR STEEL-MANUFACTURING METHODS AND USE 审中-公开
    用于钢铁制造方法和使用的颗粒精炼机

    公开(公告)号：US20130305880A1

    公开(公告)日：2013-11-21

    申请号：US13920172

    申请日：2013-06-18

    Applicant: SINVENT AS

    Inventor： Oystein GRONG ,  Casper VAN DER EIJK ,  Gabriella Maria TRANELL ,  Leiv Olav KOLBEINSEN

    IPC: B22D1/00 ,  B22D11/116

    CPC classification number: B22D1/00 ,  B22D11/108 ,  B22D11/11 ,  B22D11/111 ,  B22D11/116 ,  C21C7/0006 ,  C21C7/0037 ,  C21C7/0056 ,  C21C7/0075

    Abstract: The present invention concerns a new type of grain refiners for steel, in the form of a particulate composite material, containing a high volume fraction of tailor-made dispersed particles, with the purpose of acting as potent heterogeneous nucleation sites for iron crystals during solidification and subsequent thermo-mechanical treatment of the steel. The material comprises a position of particles of XaSb or XaOb and the element(s) X, where X is one or more elements selected from the group Ce, La, Pr, Nd, Y, Ti, Al, Zr, Ca, Ba, Sr, Mg, Si, Mn, Cr, V, B, Nb, Mo and Fe, and S is sulphur, (O is oxygen), wherein said material additionally contains oxygen, sulphur, carbon and nitrogen, wherein the sulphur (or oxygen) content is between 2 and 30% by weight of said material, while the total content of oxygen (or sulphur), carbon and nitrogen and said other elements selected from the group X is between 98 and 70% by weight of said material, and the said material contains a high volume fraction of finely dispersed XaSb or XaOb particles embedded in a metallic matrix X. The invention further concerns methods for production and use of the composite material.

    Abstract translation: 本发明涉及一种新型的用于钢的晶粒细化剂，其为颗粒状复合材料形式，其含有大量的定制分散颗粒，其目的是作为固化期间铁晶体的有效非均相成核位点，以及 随后对钢的热机械处理。 该材料包括XaSb或XaOb颗粒的位置和X元素，其中X是选自Ce，La，Pr，Nd，Y，Ti，Al，Zr，Ca，Ba， Sr，Mg，Si，Mn，Cr，V，B，Nb，Mo和Fe，S为硫，（O为氧），其中所述材料另外含有氧，硫，碳和氮， ）含量在所述材料的2至30重量％之间，而氧（或硫），碳和氮以及选自X组的所有其它元素的总含量为所述材料的98至70重量％，以及 所述材料含有高体积分数的嵌入金属基体X中的精细分散的XaSb或XaOb颗粒。本发明还涉及复合材料的生产和使用方法。

    Grain refiners for steel-manufacturing methods and use
    10.
    发明授权
    Grain refiners for steel-manufacturing methods and use 有权
    谷物精炼机用于制钢方法和使用

    公开(公告)号：US08486175B2

    公开(公告)日：2013-07-16

    申请号：US12227826

    申请日：2007-05-31

    Applicant: Øystein Grong ,  Casper Van Der Eijk ,  Gabriella Maria Tranell ,  Leiv Olav Kolbeinsen

    Inventor： Øystein Grong ,  Casper Van Der Eijk ,  Gabriella Maria Tranell ,  Leiv Olav Kolbeinsen

    IPC: C22C29/00 ,  C22C32/00 ,  C22C38/60 ,  C22B9/10 ,  B22D11/10

    CPC classification number: B22D1/00 ,  B22D11/108 ,  B22D11/11 ,  B22D11/111 ,  B22D11/116 ,  C21C7/0006 ,  C21C7/0037 ,  C21C7/0056 ,  C21C7/0075

    Abstract: The present invention concerns a new type of grain refiners for steel, in the form of a particulate composite material, containing a high volume fraction of tailor-made dispersed particles, with the purpose of acting as potent heterogeneous nucleation sites for iron crystals during solidification and subsequent thermo-mechanical treatment of the steel. The material comprises a composition of particles of XaSb or XaOb and the element(s) X, where X is one or more elements selected from the group Ce, La, Pr, Nd, Y, Ti, Al, Zr, Ca, Ba, Sr, Mg, Si, Mn, Cr, V, B, Nb, Mo and Fe, and S is sulphur, (O is oxygen), wherein said material additionally contains oxygen, sulphur, carbon and nitrogen, wherein the sulphur (or oxygen) content is between 2 and 30% by weight of said material, while the total content of oxygen (or sulphur), carbon and nitrogen and said other elements selected from the group X is between 98 and 70% by weight of said material, and the said material contains a high volume fraction of finely dispersed XaSb or XaOb particles embedded in a metallic matrix X. The invention further concerns methods for production and use of the composite material.

    Abstract translation: 本发明涉及一种新型的用于钢的晶粒细化剂，其为颗粒状复合材料形式，其含有大量的定制分散颗粒，其目的是作为固化期间铁晶体的有效非均相成核位点，以及 随后对钢的热机械处理。 该材料包含XaSb或XaOb的颗粒组合物和X元素，其中X是选自Ce，La，Pr，Nd，Y，Ti，Al，Zr，Ca，Ba， Sr，Mg，Si，Mn，Cr，V，B，Nb，Mo和Fe，S为硫，（O为氧），其中所述材料另外含有氧，硫，碳和氮， ）含量在所述材料的2至30重量％之间，而氧（或硫），碳和氮以及选自X组的所有其它元素的总含量为所述材料的98至70重量％，以及 所述材料含有高体积分数的嵌入金属基体X中的精细分散的XaSb或XaOb颗粒。本发明还涉及复合材料的生产和使用方法。

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