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1. 发明专利

JP2006130555A Long nozzle for continuous casting, and continuous casting method 有权
标题翻译：连续铸造用长喷嘴，连续铸造方法
公开(公告)号：JP2006130555A
公开(公告)日：2006-05-25
申请号：JP2005167217
申请日：2005-06-07
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： MORIKAWA KATSUMI , TAKANO KAZUHISA , YOSHIDA MASAHIDE , SHIMOKASA TOMOHARU , TSUZUKI TETSUO , FUKUNAGA SHINICHI
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54 , C04B35/103
摘要： PROBLEM TO BE SOLVED: To provide a repeatedly usable long nozzle for continuous casting which restrains the elution of carbon content into molten steel, is excellent in anti-spalling characteristics and corrosion resistance, and diminishes the occurrence of trouble caused by a break or crack, and also to reduce refractory costs and prevent the elution of carbon while restraining the interfusion of oxygen and slag into the molten steel by the use of the same. SOLUTION: The invention relates to the long nozzle for continuous casting, of which part or all of the face at least exposed to the molten steel is made of a material layer 3 which is different from the material 2 of the nozzle body. The material layer 3 or an intermediate material layer is a refractory which has a carbon content of 10 mass% or less and contains one or more of alkaline metal oxides, alkaline earth metal oxides (except MgO) and boron compounds, in the total amount of 0.5 mass% or more and less than 30 mass%, with the balance being refractory aggregate. The refractory has an apparent porosity of 18% or more and 35% or less, and a ratio of B to A (B/A) controlled to 80% or lower where A denotes the flexural strength of the refractory at ordinary temperatures and B denotes the flexural strength of the refractory at 600°C or higher temperatures. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种可重复使用的用于连续铸造的长喷嘴，其抑制碳含量进入钢水中，具有优异的防剥离特性和耐腐蚀性，并且减少了由断裂引起的故障的发生或裂纹，同时降低耐火材料成本并防止碳的洗脱，同时通过使用氧气和炉渣进入钢水。解决方案：本发明涉及用于连续铸造的长喷嘴，其中至少暴露于钢水中的部分或全部表面由与喷嘴体的材料2不同的材料层3制成。材料层3或中间材料层是具有10质量％以下的碳含量的耐火材料，并且含有一种或多种碱金属氧化物，碱土金属氧化物（MgO除外）和硼化合物，其总量为 0.5质量％以上且小于30质量％，余量为耐火骨料。耐火材料的表观孔隙率为18％以上且35％以下，B与A（B / A）的比例控制在80％以下，A表示耐火材料在常温下的弯曲强度，B表示耐火材料在600℃或更高温度下的抗弯强度。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005270985A For continuous casting immersion nozzle 有权
标题翻译：连铸喷嘴
公开(公告)号：JP2005270985A
公开(公告)日：2005-10-06
申请号：JP2004083879
申请日：2004-03-23
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： FUKUNAGA SHINICHI , TAKEUCHI TOMOHIDE , YOSHIDA MASAHIDE
IPC分类号： B22D11/10 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To provide an immersion nozzle for continuous casting with which the improvement of quality in a cast slab and the stability of the casting can be obtained by restraining the development of the nozzle clogging and the nozzle closing caused by the stickiness of inclusion on the immersion nozzle for pouring molten steel into a mold when the cast slab is produced by pouring the molten metal into the mold while using the continuous casting and this molten steel is solidified. SOLUTION: In the immersion nozzle for continuous casting, composed of a cylinder body for pouring the molten steel into the mold and an immersion part having a plurality of spouting holes successively arranged to the cylindrical body, at least a part of the cylindrical body containing the spouting holes in the immersion part, an interval build-up body composed of ≤10 mass% carbon content and/or ≤10 mass% SiO 2 , is arranged. Further, on the upper part of the internal build-up body, an internal build-up body mainly containing 25-65 mass% CaO and 25-70 mass% MgO contained in a refractory blended with dolomite clinker, is arranged. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于连续铸造的浸渍喷嘴，其中通过抑制喷嘴堵塞和喷嘴关闭的发展，可以获得铸坯质量的提高和铸件的稳定性当使用连续铸造而将熔融金属浇注到模具中并且该钢水凝固时制造铸造板坯时，将浸入钢水浇注到模具中的浸渍喷嘴的夹杂物粘附。解决方案：在用于将钢水浇注到模具中的用于连续铸造的浸入式喷嘴中，以及具有连续布置在圆筒体上的多个喷射孔的浸没部分，至少部分圆柱形包含浸没部分中的喷孔的主体，设置由≤10质量％碳含量和/或≤10质量％SiO 2 组成的间隔堆积体。此外，在内部堆积体的上部设置有主要含有与白云石熟料混合的耐火材料中含有25-65质量％CaO和25-70质量％MgO的内部积聚体。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2006068798A Nozzle for continuous casting having inner hole body 有权
标题翻译：用于连续铸造内孔孔的喷嘴
公开(公告)号：JP2006068798A
公开(公告)日：2006-03-16
申请号：JP2004258087
申请日：2004-09-06
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： YOSHIDA MASAHIDE , SHIMOKASA TOMOHARU , TSUZUKI TETSUO , KAJIWARA HIDEKAZU , FUKUNAGA SHINICHI
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To prevent the breakage of an inner hole body itself and an immersion nozzle body caused by thermal expansion of the inner hole body and to prevent the softening and the deformation of and the damage to the inner hole body and the immersion nozzle body caused by reaction between the inner hole body and the immersion nozzle body, in structure in which the inner hole body is disposed in the inner hole of the immersion nozzle as a countermeasure against the choke or erosion of the inner hole of the immersion nozzle.
SOLUTION: An enlarged diameter recessed part 3 is arranged in the inner hole 2 of the immersion nozzle body 1 for continuous casting made of alumina carbon-based material with graphite, silica, spinel, silicon carbide, magnesia, etc., added thereto, and in the enlarged diameter recessed part 3, the inner hole body 4 made of a dolomite-based material is fitted through a burnable material layer and non-reactive layer 6 for forming a space 10 as the expansion-absorbing allowance.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止内孔体的热膨胀引起的内孔体本身和浸入体体的破损，并且防止内孔体的软化和变形以及损坏，由于内孔体与浸入式喷嘴体的反作用而引起的浸入式喷嘴体，其特征在于，内孔体设置在浸入式喷嘴的内孔内，作为对抗扼流圈浸入式喷嘴
解决方案：在浸入式喷嘴体1的内孔2中配置有直径较大的凹部3，其用石墨，二氧化硅，尖晶石，碳化硅，氧化镁等的氧化铝碳基材料连续铸造并且在直径扩大的凹部3中，由白云石系材料构成的内孔体4通过可燃材料层和非反应层6嵌合，形成作为膨胀吸收余量的空间10。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2009136876A Immersion nozzle 有权
标题翻译：浸泡喷嘴
公开(公告)号：JP2009136876A
公开(公告)日：2009-06-25
申请号：JP2007312350
申请日：2007-12-03
申请人： Kurosaki Harima Corp , 黒崎播磨株式会社
发明人： KIDO KOJI , KURISU JOJI , MIZOBE ARIHITO , OTSUKA HIROSHI , YOSHIDA MASAHIDE
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide an immersion nozzle which provides flow rate of molten steel in an intended direction over a distance as long as possible by restraining attenuation of the molten steel flow flowing out from discharge holes of the immersion nozzle.
SOLUTION: The immersion nozzle is equipped with: a straight barrel part 10 which is pipe-shaped in a vertical lengthwise direction and through which the molten steel passes downward from a molten steel introduction part 9 disposed at the upper end part; and one pair of the discharge holes 12 which are disposed symmetrically in the lower part of the straight barrel part 10 and discharge the molten steel laterally from the side face of the straight barrel part 10, wherein the inner wall surface of each of the discharge holes 12 is parallel to the longitudinal direction of center axis of the discharge holes 12, and the length of a deriving part formed of the inner wall surface is ≥45 mm, and wherein when S1 represents the total cross-sectional area of the discharge holes, and S2 represents the cross-sectional area of the straight barrel part inner hole in a direction perpendicular to the axial direction of the straight barrel part at the upper end position of the discharge hole in the straight barrel part, a ratio of S1/S2 is 0.8-1.8, and wherein a downward angle θt of the center axis of the discharge hole with respect to the horizontal direction is 0≤θt≤20°.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种浸渍喷嘴，其通过抑制从浸没喷嘴的排出孔流出的钢水流的衰减，尽可能长地在期望的方向上提供钢水的流量。解决方案：浸入式喷嘴配备有：直筒部10，其在垂直长度方向上呈管状，并且钢水从设置在上端部的钢水引入部9向下流动; 以及一对排出孔12，其对称地设置在直筒部10的下部，并且从直筒部10的侧面横向排出钢水，其中，每个排出孔的内壁面 12与排出孔12的中心轴的长度方向平行，由内壁面形成的导出部的长度为≥45mm，当S1表示排出孔的总截面积时， S2表示直筒部内孔在直筒部的排出孔的上端位置处与直筒部的轴向垂直的方向的截面积，S1 / S2的比率 0.8-1.8，排出孔的中心轴相对于水平方向的向下角度θt为0≤θt≤20°。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2009233717A Immersion nozzle for continuous casting 有权
标题翻译：连铸喷嘴
公开(公告)号：JP2009233717A
公开(公告)日：2009-10-15
申请号：JP2008084166
申请日：2008-03-27
申请人： Kurosaki Harima Corp , 黒崎播磨株式会社
发明人： OTSUKA HIROSHI , MIZOBE ARIHITO , OKUMURA HISATAKE , YOSHIDA MASAHIDE , KIDO KOJI , KURISU JOJI
IPC分类号： B22D11/10 , B22D41/50
CPC分类号： B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide an immersion nozzle for continuous casting allowing quality and productivity of a middle-thickness slab to be improved by reducing uneven flow of molten metal and fluctuation in the surface thereof within a mold in continuous casting of the slab.
SOLUTION: The immersion nozzle 10 comprises a tubular body 11 which has: a cylindrical upper part 11a having an inlet 12 at the top end; a lower part 11c formed as a flat cross section; a tapered part 11b connecting the upper part 11a to the lower part 11c; a flow passage 13 formed inside and extending downward from the inlet 12; and a bottom part 20. In a sidewall 18 of the lower part 11c at the side of the short side, first discharge holes 14 communicated with the flow passage 13 are formed in positions proximate the bottom part 20. A projected part 15 projecting inward from an inner wall 19 of the flow passage 13 at the side of the long side is formed between the pair of the first discharge holes 14, 14. A pair of second discharge holes 16, 16 communicated with the flow passage 13 are formed in the bottom part 20. The first discharge holes 14 and the second discharge holes 16 are communicated with each other by a slit 17 extending in a perpendicular direction formed on the sidewall 18 at a side of the short side.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于连续铸造的浸渍喷嘴，通过减少熔融金属的不均匀流动和连续铸造中的模具内的表面的波动来改善中厚板坯的质量和生产率平板解决方案：浸入式喷嘴10包括管状体11，其具有：具有在顶端的入口12的圆柱形上部11a; 形成为扁平截面的下部11c; 将上部11a连接到下部11c的锥形部11b; 形成在入口12的内部并向下延伸的流路13; 和底部20.在下侧部分11c的短边侧的侧壁18中，与靠近底部20的位置形成有与流路13连通的第一排放孔14。在一对第一排出孔14,14之间形成有在长边侧的流路13的内壁19.底部形成有与流路13连通的一对第二排出孔16,16 第一排出孔14和第二排出孔16通过在短边侧形成在侧壁18上的垂直方向上延伸的狭缝17彼此连通。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2007326144A Immersion nozzle 有权
标题翻译：浸泡喷嘴
公开(公告)号：JP2007326144A
公开(公告)日：2007-12-20
申请号：JP2006161605
申请日：2006-06-09
申请人： Kurosaki Harima Corp , 黒崎播磨株式会社
发明人： KIDO KOJI , OTSUKA HIROSHI , MIZOBE ARIHITO , KURISU JOJI , YOSHIDA MASAHIDE
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide an immersion nozzle wherein flow velocities for the intended direction can be obtained in a long distance as much as possible by suppressing the attenuation of molten steel flow from a spouting hole of the immersion nozzle.
SOLUTION: The immersion nozzle is provided with a vertically pipe-shaped straight barrel portion 10 for running downward molten steel from an inlet 9 for molten steel, arranged at upper part and one pair of symmetrical spouting holes 12 arranged under the straight barrel portion 10 and for discharging molten steel transversely from the side of the straight barrel portion 10, wherein an inner wall surface of each of the spouting holes is in parallel to the longitudinal direction of the center axis of the spouting hole, and the length of the immersion nozzle is 45 mm or longer.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种浸渍喷嘴，其中通过抑制来自浸入式喷嘴的喷射孔的钢水流的衰减，可以尽可能地在长距离内获得预期方向的流速。解决方案：浸入式喷嘴设置有垂直管状的直筒部分10，用于从用于钢水的入口9向下运送钢水，布置在上部，一对对称的喷射孔12布置在直筒下方并且用于从直筒部分10的侧面横向排出钢水，其中每个喷射孔的内壁表面与喷射孔的中心轴线的纵向方向平行，并且其长度浸入式喷嘴为45mm以上。版权所有（C）2008，JPO＆INPIT

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