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1. 发明授权

EP1541260B1 METHOD FOR CONTINUOUS CASTING OF MOLTEN STEEL FOR THIN SHEET 有权
标题翻译：方法钢水薄板连铸
公开(公告)号：EP1541260B1
公开(公告)日：2008-10-29
申请号：EP03792816.5
申请日：2003-08-22
申请人： Krosakiharima Corporation , LWB Refractories Company
发明人： OGATA, Koji c/o KROSAKIHARIMA CORPORATION , KIMURA, Haruyoshi c/o Kimitsu Branch, , HOOVER, Donald Bruce
IPC分类号： B22D11/10 , B22D41/18 , B22D41/32 , B22D41/54
CPC分类号： B22D41/02 , B22D41/18 , B22D41/32 , B22D41/54 , C04B35/013 , C04B35/06 , C04B35/62665 , C04B2235/5427 , C04B2235/5436 , C04B2235/5472 , C04B2235/9676
摘要： A method for continuous casting of molten steel for a thin sheet, in which, in the casting of aluminum-killed steel, a CaO.MgO based refractory containing 20 mass % or more of a CaO.MgO based clinker is used at least in a portion contacting with molten steel, wherein 60 % or more of MgO crystals contained in particles of the CaO.MgO based clinker have a particle diameter of 50 mum or less. In the method, MgO crystals in the molten steel have a reduced particle, which results in the reduction in the frequency of the occurrence of a scratch even when they are contained as inclusions in a cast steel and the steel is rolled.

2. 发明公开

EP1541260A1 METHOD FOR CONTINUOUS CASTING OF MOLTEN STEEL FOR THIN SHEET 有权
标题翻译：法钢水ðNNBLECH连铸
公开(公告)号：EP1541260A1
公开(公告)日：2005-06-15
申请号：EP03792816.5
申请日：2003-08-22
申请人： Krosakiharima Corporation , LWB Refractories Company
发明人： OGATA, Koji c/o KROSAKIHARIMA CORPORATION , KIMURA, Haruyoshi c/o Kimitsu Branch, , HOOVER, Donald Bruce
IPC分类号： B22D11/10
CPC分类号： B22D41/02 , B22D41/18 , B22D41/32 , B22D41/54 , C04B35/013 , C04B35/06 , C04B35/62665 , C04B2235/5427 , C04B2235/5436 , C04B2235/5472 , C04B2235/9676
摘要： Disclosed is a method of continuous casting of aluminum-killed steel, using a refractory martial containing 20 mass% or more of CaO · MgO-based clinker. 60% or more of MgO grains included in the grains of the CaO · MgO-based clinker have a diameter of 50 µm or less. The refractory martial is used at least at a portion to be in contact with molten steel. The present invention can reduce the diameter of MgO grains as inclusions in slabs to suppress the occurrence of flaws in a milled sheet metal.

3. 发明公开

EP1504831A1 NOZZLE FOR CONTINUOUS CASTING OF ALUMINUM KILLED STEEL AND CONTINUOUS CASTING METHOD 有权
标题翻译： STRANGGIESSENVERVERFAHREN VON ALUMINIUMBERUHIGTEM STAHL
公开(公告)号：EP1504831A1
公开(公告)日：2005-02-09
申请号：EP03721000.2
申请日：2003-04-30
申请人： Krosakiharima Corporation , LWB Refractories Company
发明人： Ogata, Koji, KROSAKIHARIMA CORPORATION , Shimizu, Koichi, KROSAKIHARIMA CORPORATION , Asano, Keisuke, KROSAKIHARIMA CORPORATION , Hokii, Toshiyuki, KROSAKIHARIMA CORPORATION , Yoshitomi, Joki, KROSAKIHARIMA CORPORATION
IPC分类号： B22D11/00 , B22D11/10 , B22D41/54
CPC分类号： B22D41/54
摘要： The present invention provides a technique of applying a CaO-containing material to a nozzle unit for casting of aluminum-killed steel, in such a manner that the amount of large-size alumina inclusions in slabs can be reduced irrespective of nozzle type, such as single-part type or multi-part type. The amount of large-size alumina inclusions in slabs obtained using a single-part type or multi-part type nozzle unit, which has an inner hole to be used for pouring molten steel from a tundish to a mold therethrough and CaO-containing refractories applied to a surface of the inner hole, has a strong correlation with the entire surface area of the inner hole of the nozzle unit and the amount of CaO contained in the employed refractories. According to the present invention, 50% or more of the entire surface area of the inner hole of the nozzle unit is formed of refractories containing 20 mass % or more of CaO to allow the amount of large-size alumina inclusions to be reduced.
摘要翻译：本发明提供了一种将铝含量的材料施加到用于铸造铝镇静钢的喷嘴单元的技术，其使得可以减少板坯中的大尺寸氧化铝夹杂物的数量，而不管喷嘴类型如单件式或多件式。使用单件式或多部型型喷嘴单元获得的大型氧化铝夹杂物的量，其具有用于将钢水从中间包浇铸到模具中的内孔和使用含CaO耐火材料与内孔的表面具有与喷嘴单元的内孔的整个表面积和所使用的耐火材料中含有的CaO的量的强相关性。根据本发明，喷嘴单元的内孔的整个表面积的50％以上由含有20质量％以上的CaO的耐火材料形成，能够减少大尺寸的氧化铝夹杂物的量。

4. 发明公开

EP1541260A4 METHOD FOR CONTINUOUS CASTING OF MOLTEN STEEL FOR THIN SHEET 有权
标题翻译： VERFAHREN ZUM STRANGGIESSEN VON GESCHMOLZENEM STAHL ZU D NNBLECH
公开(公告)号：EP1541260A4
公开(公告)日：2006-05-17
申请号：EP03792816
申请日：2003-08-22
申请人： KROSAKIHARIMA CORP , LWB REFRACTORIES COMPANY
发明人： OGATA KOJI , KIMURA HARUYOSHI , HOOVER DONALD BRUCE
IPC分类号： B22D11/10 , B22D41/02 , B22D41/18 , B22D41/32 , B22D41/54 , C04B35/06
CPC分类号： B22D41/02 , B22D41/18 , B22D41/32 , B22D41/54 , C04B35/013 , C04B35/06 , C04B35/62665 , C04B2235/5427 , C04B2235/5436 , C04B2235/5472 , C04B2235/9676
摘要： A method for continuous casting of molten steel for a thin sheet, in which, in the casting of aluminum-killed steel, a CaO.MgO based refractory containing 20 mass % or more of a CaO.MgO based clinker is used at least in a portion contacting with molten steel, wherein 60 % or more of MgO crystals contained in particles of the CaO.MgO based clinker have a particle diameter of 50 mum or less. In the method, MgO crystals in the molten steel have a reduced particle, which results in the reduction in the frequency of the occurrence of a scratch even when they are contained as inclusions in a cast steel and the steel is rolled.
摘要翻译：公开了使用含有20质量％以上的CaO的耐火武器连铸铝灭活钢的方法。基于MgO的熟料。包含在CaO颗粒中的MgO颗粒的60％以上。 MgO型熟料的直径为50μm以下。至少在与钢水接触的部分使用耐火材料。本发明可以减少作为板坯中的夹杂物的MgO颗粒的直径，以抑制碾磨的金属板中的缺陷的发生。

5. 发明公开

EP1541259A1 NOZZLE REFRACTORY FOR CASTING BEING REDUCED IN DEPOSITION OF ALUMINA 有权
标题翻译： FEUERFESTMATERIALFÜRGIESSDÜSEMIT REDUZIERUNG VON ALUMINIUMOXIDABLAGERUNG
公开(公告)号：EP1541259A1
公开(公告)日：2005-06-15
申请号：EP03792721.7
申请日：2003-08-19
申请人： Krosakiharima Corporation , LWB Refractories Company
发明人： OGATA, Koji c/o KROSAKIHARIMA CORPORATION , HOOVER, Donald Bruce
IPC分类号： B22D11/10 , B22D41/52 , B22D41/54 , C04B35/06
CPC分类号： C04B41/009 , B22D41/54 , C04B35/06 , C04B41/501 , C04B41/85 , C04B2111/00887 , C04B2235/321 , C04B2235/425 , C04B2235/5427 , C04B2235/5436 , C04B2235/5463 , C04B2235/604 , C04B2235/652 , C04B41/0072 , C04B41/4519 , C04B41/4556 , C04B35/013 , C04B35/057
摘要： Disclosed is anti-alumina-buildup refractories for casting nozzles, which comprises a refractory aggregate including 20 mass% or more of CaO component, and 10 mass % or more of clinker particles each containing CaO as a mineral phase, on the basis of 100 mass % of the entire composition. At least a part of the surfaces of the CaO exposed from the surfaces of the corresponding clinker particles is formed with a CaCO 3 film. The CaCO 3 film releases CO 2 gas through thermal decomposition to smooth an operative surface of the nozzle so as to prevent the accretion of metal thereon, so that CaO is continuously supplied to alumina attached on the operative surface to prevent alumina buildup. In addition, the CaCO 3 film effectively prevents the hydration of CaO due to a hydration reaction.
摘要翻译：公开了用于铸造喷嘴的抗氧化铝累积耐火材料，其包含基于100质量％的包含CaO组分的20质量％以上的耐火骨料和10质量％以上含有CaO作为矿物相的熟料颗粒整个组成的百分比。由相应的熟料颗粒的表面露出的至少一部分表面形成有CaCO 3膜。 CaCO 3膜通过热分解释放CO 2气体，使喷嘴的工作表面平滑，以防止其上的金属沉积，从而将CaO连续地供应到附着在操作表面上的氧化铝以防止氧化铝堆积。此外，CaCO3膜有效地防止了由于水合反应引起的CaO的水化。

6. 发明公开

EP1493516A4 BINDING STRUCTURE OF REFRACTORY SLEEVE FOR INNER HOLE OF NOZZLE FOR CONTINUOUS CASTING 有权
标题翻译：装订防火套筒的结构适用于多孔喷嘴连铸的内部
公开(公告)号：EP1493516A4
公开(公告)日：2005-04-20
申请号：EP03715683
申请日：2003-03-31
申请人： KROSAKIHARIMA CORP , LWB REFRACTORIES COMPANY
发明人： OGATA KOJI
IPC分类号： B22D41/54 , C04B35/01 , C04B35/043 , C04B35/06 , C04B35/103 , C04B35/482 , C04B35/66 , B22D11/10 , B22D41/50 , C04B37/02
CPC分类号： C04B35/482 , B22D41/54 , B32B2315/02 , C04B35/013 , C04B35/043 , C04B35/06 , C04B35/103 , C04B37/003 , C04B37/005 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/48 , C04B2235/77 , C04B2237/06 , C04B2237/064 , C04B2237/068 , C04B2237/34 , C04B2237/343 , C04B2237/348 , C04B2237/708
摘要： A binding structure of a refractory sleeve with a body of a nozzle for continuous casting having a refractory sleeve containing 20 mass % or more of CaO attached on the inside of the body thereof for reducing the adhesion of alumina, wherein an adhesive material comprising a mixture of a refractory aggregate and a binder is applied to the outer face of the sleeve, a part or the whole of the surface of the inner wall of the hole in the nozzle body on which surface the refractory sleeve is to be attached, or a joint portion formed between the inserted refractory sleeve and the surface of the inner wall, and the porosity of the adhesive material after drying is adjusted so as to be 15 to 90 %. The binding structure allows the relaxation of thermal stress due to the rapid expansion resulting from the flow of molten steel into the inner hole during operation, which results in the prevention of the fallout of a sleeve and the adverse effect on the body of a nozzle due to the expansion thereof.

7. 发明授权

EP1504831B1 METHOD FOR CONTINUOUS CASTING OF ALUMINUM KILLED STEEL 有权
标题翻译：连续铸轧工艺铝镇静钢
公开(公告)号：EP1504831B1
公开(公告)日：2009-04-01
申请号：EP03721000.2
申请日：2003-04-30
申请人： Krosakiharima Corporation , LWB Refractories Company
发明人： Ogata, Koji, KROSAKIHARIMA CORPORATION , Shimizu, Koichi, KROSAKIHARIMA CORPORATION , Asano, Keisuke, KROSAKIHARIMA CORPORATION , Hokii, Toshiyuki, KROSAKIHARIMA CORPORATION , Yoshitomi, Joki, KROSAKIHARIMA CORPORATION
IPC分类号： B22D41/50 , C04B35/03 , B22D41/54
CPC分类号： B22D41/54
摘要： A nozzle system for continuous casting of an aluminum killed steel wherein 50 % or more of the total area of inner surfaces of all the nozzles for continuous casting being used for injecting a molten steel from a tundish to a mold is formed by a refractory containing CaO in an amount of 20 mass % or more. In the application of a material containing CaO to a nozzle for casting an aluminum killed steel, the amount of alumina inclusions of a large size formed in a cast piece has been found to correlate well with the total area of the inner surface of nozzles used and the CaO content of the refractory applied to the surface, and the above nozzle system allows the reduction of the amount of alumina inclusions of a large size contained in a cast piece, in any type (single type or dividable type) of nozzle.

8. 发明授权

EP1493516B1 BINDING STRUCTURE OF REFRACTORY SLEEVE FOR INNER HOLE OF NOZZLE FOR CONTINUOUS CASTING 有权
标题翻译：装订防火套筒的结构适用于多孔喷嘴连铸的内部
公开(公告)号：EP1493516B1
公开(公告)日：2007-04-25
申请号：EP03715683.3
申请日：2003-03-31
申请人： Krosakiharima Corporation , LWB Refractories Company
发明人： OGATA, Koji, c/o KROSAKIHARIMA CORPORATION
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54 , C04B37/02 , C04B35/66
CPC分类号： C04B35/482 , B22D41/54 , B32B2315/02 , C04B35/013 , C04B35/043 , C04B35/06 , C04B35/103 , C04B37/003 , C04B37/005 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/48 , C04B2235/77 , C04B2237/06 , C04B2237/064 , C04B2237/068 , C04B2237/34 , C04B2237/343 , C04B2237/348 , C04B2237/708
摘要： A binding structure of a refractory sleeve with a body of a nozzle for continuous casting having a refractory sleeve containing 20 mass % or more of CaO attached on the inside of the body thereof for reducing the adhesion of alumina, wherein an adhesive material comprising a mixture of a refractory aggregate and a binder is applied to the outer face of the sleeve, a part or the whole of the surface of the inner wall of the hole in the nozzle body on which surface the refractory sleeve is to be attached, or a joint portion formed between the inserted refractory sleeve and the surface of the inner wall, and the porosity of the adhesive material after drying is adjusted so as to be 15 to 90 %. The binding structure allows the relaxation of thermal stress due to the rapid expansion resulting from the flow of molten steel into the inner hole during operation, which results in the prevention of the fallout of a sleeve and the adverse effect on the body of a nozzle due to the expansion thereof.

9. 发明公开

EP1541259A4 NOZZLE REFRACTORY FOR CASTING BEING REDUCED IN DEPOSITION OF ALUMINA 有权
标题翻译：防火材料铸造喷嘴带减速氧化铝矿床
公开(公告)号：EP1541259A4
公开(公告)日：2006-05-24
申请号：EP03792721
申请日：2003-08-19
申请人： KROSAKIHARIMA CORP , LWB REFRACTORIES COMPANY
发明人： OGATA KOJI , HOOVER DONALD BRUCE
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54 , C04B35/06 , C04B41/50 , C04B41/85 , B22D41/52
CPC分类号： C04B41/009 , B22D41/54 , C04B35/06 , C04B41/501 , C04B41/85 , C04B2111/00887 , C04B2235/321 , C04B2235/425 , C04B2235/5427 , C04B2235/5436 , C04B2235/5463 , C04B2235/604 , C04B2235/652 , C04B41/0072 , C04B41/4519 , C04B41/4556 , C04B35/013 , C04B35/057
摘要： Disclosed is anti-alumina-buildup refractories for casting nozzles, which comprises a refractory aggregate including 20 mass% or more of CaO component, and 10 mass % or more of clinker particles each containing CaO as a mineral phase, on the basis of 100 mass % of the entire composition. At least a part of the surfaces of the CaO exposed from the surfaces of the corresponding clinker particles is formed with a CaCO3 film. The CaCO3 film releases CO2 gas through thermal decomposition to smooth an operative surface of the nozzle so as to prevent the accretion of metal thereon, so that CaO is continuously supplied to alumina attached on the operative surface to prevent alumina buildup. In addition, the CaCO3 film effectively prevents the hydration of CaO due to a hydration reaction.

10. 发明公开

EP1504831A4 NOZZLE FOR CONTINUOUS CASTING OF ALUMINUM KILLED STEEL AND CONTINUOUS CASTING METHOD 有权
标题翻译： DÜSEFÜRDAS STRANGGIESSEN VON ALUMINIUMBERUHIGTEM STAHL UND STRANGGIESSVERFAHREN
公开(公告)号：EP1504831A4
公开(公告)日：2005-08-17
申请号：EP03721000
申请日：2003-04-30
申请人： KROSAKIHARIMA CORP , LWB REFRACTORIES COMPANY
发明人： OGATA KOJI , SHIMIZU KOICHI , ASANO KEISUKE , HOKII TOSHIYUKI , YOSHITOMI JOKI
IPC分类号： B22D11/10 , B22D11/00 , B22D41/50 , B22D41/54 , C04B35/03
CPC分类号： B22D41/54
摘要： A nozzle system for continuous casting of an aluminum killed steel wherein 50 % or more of the total area of inner surfaces of all the nozzles for continuous casting being used for injecting a molten steel from a tundish to a mold is formed by a refractory containing CaO in an amount of 20 mass % or more. In the application of a material containing CaO to a nozzle for casting an aluminum killed steel, the amount of alumina inclusions of a large size formed in a cast piece has been found to correlate well with the total area of the inner surface of nozzles used and the CaO content of the refractory applied to the surface, and the above nozzle system allows the reduction of the amount of alumina inclusions of a large size contained in a cast piece, in any type (single type or dividable type) of nozzle.
摘要翻译：本发明提供了一种将铝含量的材料施加到用于铸造铝镇静钢的喷嘴单元的技术，其使得可以减少板坯中的大尺寸氧化铝夹杂物的数量，而不管喷嘴类型如单件式或多件式。使用单件式或多部型型喷嘴单元获得的大型氧化铝夹杂物的量，其具有用于将钢水从中间包浇铸到模具中的内孔和使用含CaO耐火材料与内孔的表面具有与喷嘴单元的内孔的整个表面积和所使用的耐火材料中含有的CaO的量的强相关性。根据本发明，喷嘴单元的内孔的整个表面积的50％以上由含有20质量％以上的CaO的耐火材料形成，能够减少大尺寸的氧化铝夹杂物的量。

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