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1. 发明专利

JP2010207844A Immersion nozzle for continuous casting 有权
标题翻译：连铸喷嘴
公开(公告)号：JP2010207844A
公开(公告)日：2010-09-24
申请号：JP2009055525
申请日：2009-03-09
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： SADANO KENJI , FUKUNAGA SHINICHI , TAKAHASHI SEIICHI , NEHA KEIICHIRO , TSUZUKI TETSUO , MIZOBE ARIHITO
IPC分类号： B22D11/10 , B22D41/50 , B22D41/58
摘要： PROBLEM TO BE SOLVED: To provide an immersion nozzle for continuous casting capable of suppressing local erosion of a fire resistant material for supplying gas and of uniformly stably carrying out blow-in of an inert gas in a circumferential direction.
SOLUTION: The immersion nozzle 10 for continuous casting carries out flow control of molten steel from a tundish by a stopper 12 arranged at an inlet 11 for molten steel flow formed of the fire resistant material for supplying gas and charges the molten steel in a molten steel passage 13 from a discharge port 14 to a mold while blowing the inert gas into the molten steel from the fire resistant material for supplying gas. When the inner diameter D of the molten steel passage below a position P abutting on the stopper 12 and at the height position of the discharging port 14 is made to be D, at least a part of a working surface 17 within a range R where a length H from the upper end position T1 of the inlet 11 for the molten steel flow to the below is 40 mm or more and (1.1×D+78) mm or less is formed of the fire resistant material for supplying gas, and a fire resistant material 18 for preventing errosion is arranged at a part of the working surface 17 within the range R below the position P abutting on the stopper 12.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制用于供给气体的耐火材料的局部腐蚀并且均匀地稳定地在圆周方向上进行惰性气体吹入的连续铸造用浸渍喷嘴。解决方案：用于连续铸造的浸入式喷嘴10通过设置在用于供应气体的耐火材料形成的钢水流入口11处的塞子12从中间包进行钢水的流量控制，并将钢水充入从用于供给气体的耐火材料吹入惰性气体进入钢水的从出料口14到模具的钢水通道13。当钢水通道的低于位于止动件12上的位置P和排出口14的高度位置的内径D为D时，工作表面17的至少一部分在R的范围内，其中a 从用于钢水流入口的入口11的上端位置T1的长度H为40mm以上，并且由用于供给气体的耐火材料形成（1.1×D + 78）mm以下，在工件表面17的一部分上，在与止动件12邻接的位置P下方的范围R内布置防止磨损的耐磨材料18.（C）2010，JPO＆INPIT

2. 发明专利

JP2010029895A Refractory for nozzle used for continuous casting and nozzle for continuous casting 有权
$Refractory for nozzle used for continuous casting and nozzle for continuous casting$
标题翻译：用于连续铸造和连续铸造的喷嘴的喷嘴用耐火材料
公开(公告)号：JP2010029895A
公开(公告)日：2010-02-12
申请号：JP2008193734
申请日：2008-07-28
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 , SASAKI AKINARI , HIRAIWA YOSHITAKA , NEHA KEIICHIRO , SADANO KENJI , FUKUNAGA SHINICHI , TANAKA KAZUHISA
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To provide a refractory for an interlayer of a nozzle for continuous casting, which prevents press crack of an outer circumferential side layer due to thermal expansion difference of an inner hole side layer and an outer circumferential side layer made of a body material, has a shape capable of fixing the inner hole side layer to the outer circumferential side layer at a predetermined interval, and has a function for preventing exfoliation of the inner hole side layer during casting in the nozzle for continuous casting with an improved durability achieved by disposing a layer with high functions such as high corrosion resistance and high antiadhesiveness at the inner hole side. SOLUTION: The refractory contains ≥10 volume% and ≤75 volume% of a hollow refractory aggregate which satisfies the relation of R/t ≥10, wherein R is an average radius of a particle and t is an average wall thickness. The refractory contains one or more kinds of single metals or alloys of Al, Si, and Mg in an amount of ≥0.5 mass% and ≤15 mass% in total in terms of only a metal component, and carbon ≥2 mass% and ≤99.5 mass% of carbon, as a ratio of a residual part other than the hollow refractory aggregate to a total amount. The refractory is arranged between the inner hole side layer 2 and the outer circumferential side layer 3, 4 of the nozzle for continuous casting as the interlayer 1. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于连续铸造的喷嘴的中间层的耐火材料，其防止由于制成的内孔侧层和外周侧层的热膨胀差导致的外周侧层的挤压裂纹具有能够以规定间隔将内孔侧层固定到外周侧层的形状，并且具有防止在铸造中的内孔侧层在用于连续铸造的喷嘴中的剥离的形状通过在内孔侧设置具有高耐腐蚀性和高抗粘性等高功能的层来提高耐久性。解决方案：耐火材料包含满足R /t≥10的关系的中空耐火骨料的≥10体积％和≤75体积％，其中R是颗粒的平均半径，t是平均壁厚。该耐火材料含有一种或多种Al金属或Al的合金，其中Al，Si和Mg的合金量仅为金属成分的总量的≥0.5质量％和≤15质量％，碳≥2质量％≤ 99.5质量％的碳，作为中空耐火骨料以外的残留部分的比例为总量。耐火材料布置在作为中间层1的连续铸造用喷嘴的内孔侧层2和外周侧层3,4之间。（C）2010，JPO＆INPIT

3. 发明专利

JP2010029894A Refractory for interlayer of nozzle for continuous casting and nozzle for continuous casting 有权
$Refractory for interlayer of nozzle for continuous casting and nozzle for continuous casting$
标题翻译：用于连续铸造的喷嘴和连续喷射喷嘴的中间层的耐火材料
公开(公告)号：JP2010029894A
公开(公告)日：2010-02-12
申请号：JP2008193730
申请日：2008-07-28
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 , SASAKI AKINARI , HIRAIWA YOSHITAKA , NEHA KEIICHIRO , SADANO KENJI , FUKUNAGA SHINICHI , TANAKA KAZUHISA
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To provide a refractory (mortar) for an interlayer of a nozzle for continuous casting, which prevents press crack of an outer circumferential side layer due to thermal expansion difference of an inner hole side layer and the outer circumferential side layer made of a body material and has a shape capable of fixing the inner hole side layer to the outer circumferential side layer (a body of the nozzle for continuous casting) at a predetermined interval in the nozzle for continuous casting with an improved durability achieved by disposing a layer with high functions such as high corrosion resistance and high antiadhesiveness at the inner hole side, and also to provide a nozzle for continuous casting using the refractory for the interlayer.
SOLUTION: The refractory for the interlayer of the nozzle for continuous casting contains ≥10 volume% and ≤75 volume% of a hollow refractory aggregate which satisfies the relation of R/t≥10, wherein R is an average radius of a particle and t is an average wall thickness. The refractory is arranged between the inner hole side layer 2 and the outer circumferential side layer 3, 4 of the nozzle for continuous casting as the interlayer 1.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于连续铸造的喷嘴的中间层的耐火材料（砂浆），其防止由于内部空气侧层和外周侧层的热膨胀差引起的外周侧层的冲压并且具有能够以提高的耐久性在连续铸造用喷嘴中以预定间隔将内孔侧层固定到外周侧层（用于连续铸造的喷嘴的主体）的形状通过在内孔侧设置具有高耐腐蚀性和高抗粘性等高功能的层，并且还提供使用中间层的耐火材料进行连续铸造的喷嘴。解决方案：用于连续铸造用喷嘴的中间层的耐火材料包含满足R /t≥10的关系的中空耐火骨料的≥10体积％和≤75体积％，其中R是平均半径颗粒和t是平均壁厚。耐火材料布置在作为中间层1的连续铸造用喷嘴的内孔侧层2和外周侧层3,4之间。（C）2010，JPO＆INPIT

4. 发明专利

JP2010036229A Nozzle for continuous casting 有权
标题翻译：喷嘴用于连续铸造
公开(公告)号：JP2010036229A
公开(公告)日：2010-02-18
申请号：JP2008203386
申请日：2008-08-06
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： MORIKAWA KATSUMI , SASAKI AKINARI , HIRAIWA YOSHITAKA , NEHA KEIICHIRO , SADANO KENJI , FUKUNAGA SHINICHI , TANAKA KAZUHISA
IPC分类号： B22D11/10 , B22D41/54 , C04B35/66
摘要： PROBLEM TO BE SOLVED: To prevent stress-oriented crack of an outer periphery-side layer caused by heat expansion difference between an inner bore-side layer and the outer periphery-side layer of a body material, in a nozzle for continuous casting with an MgO-CaO based material applied to the inner bore-side layer, to possess a property allowing the inner bore-side layer to be fixed on the outer periphery-side layer in a prescribed arrangement, and to prevent exfoliation of the inner bore-side layer during casting. SOLUTION: As an intermediate layer 1, there is used a refractory which contains 10-75 vol.% hollow fire-resistant aggregate satisfying R/t≥10 in the ratio of the average radius R and the average wall thickness t of the grains and which, as percentages of the remainder other than the hollow fire-resistant aggregate, contains 0.5-15 mass% in total of Al, Mg and Si in one or more of single metals or alloys, in terms of their metallic components only, and 2-99.5 mass% carbon. As the inner bore-side layer 2, an MgO-CaO-based refractory is used. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止由内孔侧层和主体材料的外周侧层之间的热膨胀差引起的外周侧层的应力取向裂纹，在连续的喷嘴中用施加到内孔侧层的MgO-CaO类材料进行铸造，具有使内孔侧层以规定的排列固定在外周侧层上的性质，并且防止内侧面层的剥离在铸造期间钻孔侧层。解决方案：作为中间层1，使用含有10-75体积％的满足R /t≥10的中空耐火骨料的耐火材料，其平均半径R和平均壁厚t的比例除了中空耐火骨料以外的剩余部分的百分比，其单一金属或合金中的一种或多种中的Al，Mg和Si总共含有0.5-15质量％，和2-99.5质量％的碳。作为内孔侧层2，使用MgO-CaO类耐火材料。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2008055452A Hardly adherent nozzle for continuous casting 有权
标题翻译：用于连续铸造的HARDLY ADJENENT喷嘴
公开(公告)号：JP2008055452A
公开(公告)日：2008-03-13
申请号：JP2006233892
申请日：2006-08-30
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： SASAKI AKINARI , MORIKAWA KATSUMI , NEHA KEIICHIRO , KOGA SAEKO , AMANO JIRO , FUKUNAGA SHINICHI , TANAKA KAZUHISA
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To prevent a nozzle body from being cracked in the preheating time or in the using time even without providing a space for an expansion margin in a nozzle for continuous casting in which an inner hole body containing dolomite clinker and less in carbon content is arranged in the inner hole of the nozzle body.
SOLUTION: In the nozzle for continuous casting, the inner hole body is arranged in the inner hole part of the nozzle body. A blending material for the inner hole body is composed of the dolomite clinker, and the grain-size configuration of the blending material in the inner hole body is ≤10 mass% (including 0) of >1 mm grain size, 30-80 mass% of >0.5-1 mm to ≤1 mm grain size and 10-70 mass% of ≤0.5 mm grain size. In the hardly adherent nozzle for continuous casting, the inner hole body is manufactured by adding an organic binder into the blending material, kneading them, then moling and heat-treating them.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止喷嘴体在预热时间或使用时间内在连续铸造用喷嘴中没有设置膨胀余量的空间，其中含有白云石熟料的内孔体和较少的碳含量被布置在喷嘴体的内孔中。解决方案：在用于连续铸造的喷嘴中，内孔体布置在喷嘴体的内孔部分中。用于内孔体的混合材料由白云石熟料组成，内孔体中的混合材料的晶粒尺寸构型为≤10质量％（包括0）>1μm晶粒尺寸，30-80质量％％> 0.5-1mm至≤1mm晶粒度和10-70质量％≤0.5mm晶粒尺寸。在用于连续铸造的几乎不粘附的喷嘴中，通过向混合材料中加入有机粘合剂，捏合它们，然后进行捏合和热处理来制造内孔体。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008062291A Nozzle for continuous casting 有权
标题翻译：喷嘴用于连续铸造
公开(公告)号：JP2008062291A
公开(公告)日：2008-03-21
申请号：JP2006245251
申请日：2006-09-11
申请人： Kurosaki Harima Corp , 黒崎播磨株式会社
发明人： YAMAGUCHI FUTOSHI , SAKAGUCHI YUTAKA , IGAWA YUJI , NEHA KEIICHIRO , YANO JUNYA
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To provide a nozzle for continuous casting of which the strength as that of a structure is not reduced before its use, and which can be easily made short upon disposal after its use.
SOLUTION: The nozzle for continuous casting has an oxidation preventive film 3 formed on the outer circumferential surface of a nozzle body 1, wherein the outer circumferential surface along a direction orthogonal to the central axis in the nozzle body 1 is provided with a belt-like part 4 at which the oxidation preventive film is not formed.
COPYRIGHT: (C)2008,JPO&INPIT

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