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公开(公告)号:US20180029111A1
公开(公告)日:2018-02-01
申请号:US15662977
申请日:2017-07-28
IPC分类号: B22D11/115 , B22D11/00
CPC分类号: B22D11/115 , B22D1/00 , B22D11/003 , B22D11/11 , B22D27/02 , C21C7/0075 , F27D27/00 , F27D2003/0054
摘要: There is provided a metal molded body manufacturing apparatus for electromagnetically stirring metallic molten metal and molding a metal molded body. The metal molded body manufacturing apparatus includes: a die having an inclined side wall; and a moving magnetic field generation section that stirs the molten metal in the die, wherein the moving magnetic field generation section includes a magnetic body, and a coil wound around the magnetic body as a center, and an end surface of the magnetic body is disposed in parallel to an inner surface of the side wall.
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公开(公告)号:US09796016B2
公开(公告)日:2017-10-24
申请号:US15375595
申请日:2016-12-12
申请人: Kobe Steel, Ltd.
IPC分类号: B22D11/10 , B22D11/11 , B22D41/015 , B22D11/00 , B22D11/041 , B22D21/00
CPC分类号: B22D11/001 , B22D11/041 , B22D11/10 , B22D11/11 , B22D21/005 , B22D27/04 , B22D41/015
摘要: The present invention provides a method for casting a slab with good cast surface quality. The method includes pouring molten metal 8 into a mold 2 from one of the paired shorter sides of the mold 2 while allowing superheat ΔT [° C.], which is a temperature difference obtained by subtracting the melting point Tm [° C.] of the raw material from the temperature Tin [° C.] of the molten material on the surface of the molten metal in the mold and at the pouring point of the molten metal, to satisfy the following Formula (1) and Formula (2): 0.0014ΔT2 +0.0144ΔT+699.45>800 Formula (1) 0.0008ΔT2 +0.2472ΔT+853.02
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公开(公告)号:US20170282240A1
公开(公告)日:2017-10-05
申请号:US15450420
申请日:2017-03-06
IPC分类号: B22D11/04 , F27D11/08 , B22D21/00 , B22D11/00 , B22D11/041
CPC分类号: B22D11/0408 , B22D11/001 , B22D11/041 , B22D11/11 , B22D21/005 , B22D27/04 , B22D41/015 , F27D11/08
摘要: The present invention provides a method for casting a slab having a good cast surface. The method includes heating the surface of molten metal on a metal inlet side of a mold by a first heat source so that the following formulas: q≧0.87 and c≦11.762q+0.3095 are satisfied where c is a cycle time [sec] of turning movement of the first heat source, and q is an average amount of heat input [MW/m2] determined by accumulating an amount of heat input applied by at least the first heat source to the contact region between the upper surface of the slab on the metal inlet side and the mold, along the path of turning movement of the first heat source, and dividing the resultant accumulated value by the cycle time c.
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公开(公告)号:US20170197243A1
公开(公告)日:2017-07-13
申请号:US15375595
申请日:2016-12-12
IPC分类号: B22D11/00 , B22D11/10 , B22D21/00 , B22D11/041
CPC分类号: B22D11/001 , B22D11/041 , B22D11/10 , B22D11/11 , B22D21/005 , B22D27/04 , B22D41/015
摘要: The present invention provides a method for casting a slab with good cast surface quality. The method includes pouring molten metal 8 into a mold 2 from one of the paired shorter sides of the mold 2 while allowing superheat ΔT [° C.], which is a temperature difference obtained by subtracting the melting point Tm [° C.] of the raw material from the temperature Tin [° C.] of the molten material on the surface of the molten metal in the mold and at the pouring point of the molten metal, to satisfy the following Formula (1) and Formula (2): 0.0014ΔT2 +0.0144ΔT+699.45>800 Formula (1) 0.0008ΔT2 +0.2472ΔT+853.02
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公开(公告)号:US09149867B2
公开(公告)日:2015-10-06
申请号:US13568200
申请日:2012-08-07
CPC分类号: B22D1/00 , B22D11/00 , B22D11/108 , B22D11/11 , C21C7/0006 , C21C7/06 , C22C38/005 , C22C38/14
摘要: 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).
摘要翻译: 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)。
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公开(公告)号:US20150158078A1
公开(公告)日:2015-06-11
申请号:US14385046
申请日:2012-03-28
申请人: Mathieu Brandt , Jean-Paul Fischbach , Paul Naveau
发明人: Mathieu Brandt , Jean-Paul Fischbach , Paul Naveau
IPC分类号: B22D11/11 , B22D11/103 , B22D11/04
CPC分类号: B22D11/11 , B22D11/04 , B22D11/103 , B22D11/108 , B22D41/58
摘要: 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.
摘要翻译: 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。
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公开(公告)号:US08642916B2
公开(公告)日:2014-02-04
申请号:US12055415
申请日:2008-03-26
CPC分类号: F27D11/00 , B22D11/11 , C22B9/04 , C22B9/226 , C22B9/228 , F27B3/08 , F27B3/20 , F27B5/04 , F27D99/0006 , H01J37/077 , H01J37/305 , H01J2237/3128
摘要: 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.
摘要翻译: 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。
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公开(公告)号:US20130305880A1
公开(公告)日:2013-11-21
申请号:US13920172
申请日:2013-06-18
申请人: SINVENT AS
IPC分类号: B22D1/00 , B22D11/116
CPC分类号: B22D1/00 , B22D11/108 , B22D11/11 , B22D11/111 , B22D11/116 , C21C7/0006 , C21C7/0037 , C21C7/0056 , C21C7/0075
摘要: 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.
摘要翻译: 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。
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公开(公告)号:US08486175B2
公开(公告)日:2013-07-16
申请号:US12227826
申请日:2007-05-31
CPC分类号: B22D1/00 , B22D11/108 , B22D11/11 , B22D11/111 , B22D11/116 , C21C7/0006 , C21C7/0037 , C21C7/0056 , C21C7/0075
摘要: 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.
摘要翻译: 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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公开(公告)号:US20120298320A1
公开(公告)日:2012-11-29
申请号:US13568200
申请日:2012-08-07
CPC分类号: B22D1/00 , B22D11/00 , B22D11/108 , B22D11/11 , C21C7/0006 , C21C7/06 , C22C38/005 , C22C38/14
摘要: 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).
摘要翻译: 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)。
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