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1. 发明专利

JP2008212968A Structure of sealing part of nozzle joint part in continuous steel casting apparatus 有权
标题翻译：连续铸钢件喷嘴接头部分密封结构
公开(公告)号：JP2008212968A
公开(公告)日：2008-09-18
申请号：JP2007052621
申请日：2007-03-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OTA MITSUHIKO , UEJIMA YOSHIYUKI , UCHIYAMA NORIHIKO , MIYAHARA MASATOSHI , SUEMATSU YOSHIAKI
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide a sealing structure of a nozzle joint part in a continuous steel casting apparatus for preventing the sucking from the joint part between refractory nozzles. SOLUTION: As for the sealing structure of the nozzle joint part in the continuous steel casting apparatus, a hollow disk-like packing material made of a monolithic refractory or flame retardant material is used, two of large and small packing materials are arranged at the inner part and the outer part in the diameter direction on the same flat surface, and molten metal is held in a space formed in the interval with the nozzle joint part. Also, the width in the diameter direction of the metal is defined as ≥3 mm and the width in the diameter of the packing materials is defined as ≥10 mm. Alternatively, the thickness of the metal at the room temperature is defined as ≥0.8 times to COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于防止从耐火喷嘴之间的接合部抽吸的连续铸钢装置中的喷嘴接合部的密封结构。解决方案：对于连续铸钢装置中的喷嘴接头部分的密封结构，使用由整体式耐火材料或阻燃材料制成的中空圆盘状填充材料，使用大而小的包装材料在相同的平坦表面上的直径方向上的内部部分和外部部分，并且熔融金属被保持在与喷嘴接合部分间隔形成的空间中。此外，金属的直径方向的宽度被定义为≥3mm，并且包装材料的直径的宽度被定义为≥10mm。或者，室温下金属的厚度定义为室温下包装材料厚度的≥0.8倍至<1.3倍。或者，将金属的直径方向的宽度定义为≥3mm，将包装材料的直径方向的宽度定义为≥10mm，将室温下的金属的厚度定义为≥0.8倍到室温下包装材料厚度的1.3倍。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007069254A Method for sealing nozzle joining part in continuous casting equipment for steel, and structure of sealed part 有权
标题翻译：密封连续铸钢设备中的喷嘴接头的部件及密封部件的结构方法
公开(公告)号：JP2007069254A
公开(公告)日：2007-03-22
申请号：JP2005260717
申请日：2005-09-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OTA MITSUHIKO , UEJIMA YOSHIYUKI , KONDO KATSUMI , SAKAI DAISUKE , SUEMATSU YOSHIAKI
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide a method for sealing a nozzle joining part in continuous casting equipment for steel, for preventing suction from a joining part between refractory nozzles, and to provide a sealed structure of a nozzle joining part. SOLUTION: In the continuous casting for steel, the nozzle joining part is sealed with a liquid metal. A metal whose affinity with oxygen is higher than that of iron is preferably used as the liquid sealing material. More preferably, Al or an Al alloy is used as the liquid sealing material. Further, as the joined structure of nozzles in the continuous casting method, the one where a liquid sealing material is held by a packing material composed of a monolithic refractory or flame retardant material and nozzles is used. In the above structure, the joined face of the nozzles is preferably provided with a recessed part. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于密封用于钢的连续铸造设备中的喷嘴接合部分的方法，用于防止来自耐火喷嘴之间的接合部分的抽吸，并且提供喷嘴接合部分的密封结构。
解决方案：在钢的连续铸造中，喷嘴接合部分用液态金属密封。优选使用与氧的亲和性高于铁的金属作为液体密封材料。更优选使用Al或Al合金作为液体密封材料。此外，作为连续铸造法中的喷嘴的接合结构，使用液体密封材料由由整体耐火材料或阻燃材料构成的包装材料和喷嘴保持的结构。在上述结构中，喷嘴的接合面优选设置有凹部。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2005305536A Continuous-casting method for molten metal 有权
标题翻译：连续铸造金属的方法
公开(公告)号：JP2005305536A
公开(公告)日：2005-11-04
申请号：JP2004129413
申请日：2004-04-26
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJI TAKEHIKO , OTA MITSUHIKO
IPC分类号： B22D11/04 , B22D11/11
摘要： PROBLEM TO BE SOLVED: To provide a continuous-casting method, by which molten metal in a mold is effectively stirred only by electromagnetic force of an AC magnetic field and surface characteristics of a cast slab is improved up to a sufficient depth of the slab.
SOLUTION: The molten metal is continuously cast as follows: the molten metal is poured, through an immersion nozzle, into a water-cooling mold, which is vibrated at a constant cycle and consists of a pair of long sides and a pair of short sides; the poured molten metal is solidified while making the electromagnetic force act in such a direction that the molten metal is separated from a mold wall, by the AC magnetic field generated by an electromagnetic coil provided around the periphery of the water-cooling mold; and the solidified metal is continuously withdrawn downward. When continuously casting the molten metal as stated above, the stirring region and velocity of a stirring flow in the molten metal are set within a specified range by controlling a magnetic field gradient. The gradient is a base for a distribution in the cast-slab drawing direction of the electromagnetic force acting in such a direction that the molten metal is separated from a mold wall.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种连续铸造方法，通过该连铸方法，通过交流磁场的电磁力有效地搅拌模具中的熔融金属，并且改善铸造板坯的表面特性直至足够的深度板块。解决方案：熔融金属如下连续铸造：熔融金属通过浸没式喷嘴浇注到水冷模具中，水冷模具以恒定的循环振动，由一对长边和一对的短边通过设置在水冷模具的周围的电磁线圈产生的交流磁场，使熔融金属固化，同时使电磁力沿熔融金属与模具壁分离的方向作用; 并且固化的金属被连续地向下抽出。当如上所述连续铸造熔融金属时，通过控制磁场梯度将搅拌区域和熔融金属中的搅拌流的速度设定在规定范围内。梯度是沿着使熔融金属与模具壁分离的方向作用的电磁力的铸造板坯拉伸方向上的分布的基底。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005305456A Powder for continuous casting for steel and continuous casting method for steel using the same 审中-公开
标题翻译：用于钢连续铸造的粉末和使用该钢的连续铸造方法
公开(公告)号：JP2005305456A
公开(公告)日：2005-11-04
申请号：JP2004122106
申请日：2004-04-16
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SASAI KATSUHIRO , OTA MITSUHIKO , OHASHI WATARU , ISOKAMI KATSUYUKI
IPC分类号： B22D11/108
摘要： PROBLEM TO BE SOLVED: To provide powder for continuous casting for steel with which the generation of the longitudinal cracks in the surface of a slab can be prevented, and also the generation of scars and the generation of restraint type breakout can be prevented, and to provide a continuous casting method for steel.
SOLUTION: In the method for producing powder for continuous casting for steel, the powder has a composition comprising CaO and SiO
2 , and in which the ratio of (the mass of CaO)/(the mass of SiO
2 ) is 0.8 to 1.6, and also, comprising one or more kinds selected from Ce oxides, La oxides and Nd oxides by 1 to 25 mass% in total, and further, having a solidifying temperature of 800 to 1,300°C. By using the powder for continuous casting for steel produced by the production method to continuous casting for steel, the generation of longitudinal cracks and scars in a slab can be prevented, and further, the generation of restraint type breakout can be prevented.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供可以防止板坯表面产生纵向裂纹的钢的连续铸造用粉末，并且可以防止产生疤痕和产生限制型突破，并提供钢的连续铸造方法。＆lt; P＆gt;解决方案：在用于钢的连续铸造用粉末的方法中，粉末具有包含CaO和SiO 2 的组成，其中（CaO的质量）/（ SiO 2的质量）为0.8〜1.6，并且还包含总共为1〜25质量％的选自Ce氧化物，La氧化物和Nd氧化物中的一种或多种，并且还具有固化温度为800〜1300℃。通过使用用于钢的连续铸造的制造方法制造的钢的连续铸造用粉末，可以防止板坯中的纵向裂纹和疤痕的产生，并且可以防止产生限制型突破。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005305534A Method and device for dressing surface of continuously cast slab 审中-公开
标题翻译：连续铸造表面的方法和装置
公开(公告)号：JP2005305534A
公开(公告)日：2005-11-04
申请号：JP2004129411
申请日：2004-04-26
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJI TAKEHIKO , MARUKI YASUO , TANAKA JUN , OTA MITSUHIKO
IPC分类号： B22D11/16 , B22D29/00
摘要： PROBLEM TO BE SOLVED: To provide a dressing method for the surface of a continuously cast slab, by which saving in energy and equipment is realized by using at least one plasma torch corresponding to a position, a shape, and the like of a defect detected, and to provide a dressing device, by which the dressing method is effectively executed.
SOLUTION: A detected defective part on the surface of a continuously cast steel slab is automatically melted and restored by using plasma heating, whose horizontal cross-section shape is partly deformed corresponding to the shape of the defect. The defect is preferably detected by employing one or more of an image processing method, a leakage flux method, and an operational abnormality and defect detecting method as a detection means.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于连续铸造板坯的表面的修整方法，通过使用至少一个对应于位置，形状等的等离子体焰炬来实现能量和设备的节省检测到缺陷，并提供修整装置，通过该修整装置有效地执行修整方法。解决方案：连续铸钢板表面上检测到的缺陷部分通过使用等离子体加热自动熔化和恢复，等离子体加热其水平横截面形状与缺陷的形状部分变形。优选通过采用图像处理方法，漏磁通方法以及作为检测手段的操作异常和缺陷检测方法中的一种或多种来检测缺陷。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2008188640A Continuous casting method for steel with internal crack prevented 有权
标题翻译：具有内部防裂钢的连续铸造方法
公开(公告)号：JP2008188640A
公开(公告)日：2008-08-21
申请号：JP2007026305
申请日：2007-02-06
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OTA MITSUHIKO , UEJIMA YOSHIYUKI , KONDO KATSUMI , MATSUBA SHIGEKAZU , MIKI DAISUKE , YASUI YOJI
IPC分类号： B22D11/00 , B22D11/16 , B22D11/20 , B22D46/00
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method for a steel with internal cracks prevented where the maximum casting velocity which does not have a risk of generating internal cracks is correctly obtained by calculation in advance regarding various steel kinds, and productivity can be improved as possible.
SOLUTION: When a steel is subjected to continuous casting, the componential values of the steel after secondary refining are analyzed, and, using a microsegregation model in accordance with the value, based on the relation between microsegregation and a solid phase ratio, an internal crack critical strainεcr is calculated. Then, the maximum casting velocity Vc with which the total strainεt upon continuous casting does not exceed the internal crack critical strainεcr is decided, and continuous casting is performed at the maximum casting velocity Vc. As the componential values of the steel after secondary refining, the componential values of ≥5 elements including C, Si, Mn, P and S are analyzed per charge.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有内部裂纹的钢的连续铸造方法，其中通过预先对各种钢种进行计算，正确地获得不具有产生内部裂纹的风险的最大铸造速度，并且生产率可以尽可能地改进。解决方案：对钢进行连续铸造时，对二次精炼后的钢的成分值进行分析，根据该微观偏析与固相率的关系，使用微量偏析模型，计算内部裂纹临界应变εcr。然后，确定连续铸造时的总应变εt不超过内部裂纹临界应变εcr的最大铸造速度Vc，以最大铸造速度Vc进行连续铸造。作为二次精炼后的钢的成分值，每次电荷分析包括C，Si，Mn，P和S在内的≥5元素的成分值。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008062288A Method and structure for sealing nozzle joint part in continuous casting facility for steel 有权
标题翻译：用于钢连续铸造设备密封喷嘴接头的方法和结构
公开(公告)号：JP2008062288A
公开(公告)日：2008-03-21
申请号：JP2006245038
申请日：2006-09-11
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OTA MITSUHIKO , UEJIMA YOSHIYUKI , UCHIYAMA NORIHIKO , SUEMATSU YOSHIAKI
IPC分类号： B22D11/106 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide a method and structure for sealing a nozzle joint part in a continuous casting facility for steel capable of preventing air from involving in a nozzle.
SOLUTION: In the sealing method of the nozzle joint part in the continuous casting facility for steel, the nozzle joint part is sealed with nonmetallic melt material to prevent air from being included in the nozzle. In the sealing structure of the nozzle joint part in the continuous casting facility for steel, a nonmetallic melt material 10 for preventing air from being included in the nozzle is held between packing material 9 made of unshaped refractories or flame retardant material and the nozzle joint surface to be joined.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于密封用于钢的连续铸造设备中的喷嘴接头部件的方法和结构，其能够防止空气参与喷嘴。解决方案：在用于钢的连续铸造设备中的喷嘴接头部分的密封方法中，喷嘴接头部分用非金属熔体材料密封，以防止空气被包括在喷嘴中。在用于钢的连续铸造设备中的喷嘴接头部分的密封结构中，将用于防止空气包含在喷嘴中的非金属熔化材料10保持在由不定形耐火材料或阻燃材料制成的包装材料9和喷嘴接头表面加入。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006218540A Heat insulating material for molten steel 有权
标题翻译：耐热钢绝热材料
公开(公告)号：JP2006218540A
公开(公告)日：2006-08-24
申请号：JP2005242712
申请日：2005-08-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OTA MITSUHIKO , UEJIMA YOSHIYUKI , KONDO KATSUMI , MIKASA AKIRA
IPC分类号： B22D11/108 , B22D1/00 , B22D11/11 , C21C7/00 , C21C7/076
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a heat insulating material for molten steel which is quickly melted on the molten steel surface and can prevent re-oxidation of the molten steel. SOLUTION: This heat insulating material for molten steel is the one which blends a raw material having lower melting point than the molten steel temperature and a raw material having higher melting point than the molten steel temperature. The ratio of the raw material having lower melting point than the molten steel temperature is ≥30 mass% of the whole raw materials and it is desirable that the melting point in the average composition is lower than the molten steel temperature. As the raw material having lower melting point than the molten steel temperature, a multicomponent oxide composed of at least two or more kinds among Al 2 O 3 , CaO, MgO, SiO 2 is desirable to use, and as the raw material having higher melting point than the molten steel temperature, a (multicomponent) oxide composed of at least one kind among Al 2 O 3 , CaO, MgO, SiO 2 or at least two or more kinds among Al 2 O 3 , CaO, MgO, SiO 2 , is desirable to use. The average composition is desirable to be CaO/Al 2 O 3 =0.5-2.0 and MgO=5-30% and SiO 2 content is desirable to make to be COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在钢水表面上迅速熔化并能防止钢水再氧化的钢水绝热材料。解决方案：用于钢水的这种隔热材料是将熔点低于钢水温度的原料和熔点高于钢水温度的原料混合的材料。熔点低于钢水温度的原料的比例为整个原料的≥30质量％，平均组成中的熔点优选低于钢水温度。作为熔点低于钢水温度的原料，可以使用由Al 2 O 3，SB 3 O 3，SiO 2，MgO，SiO 2，希望使用 2 ，并且作为具有比钢水温度高的熔点的原料，可以使用由Al 2 SBO 2中的至少一种构成的（多组分）氧化物 CaO，MgO，SiO 2 ，或至少两种以上的Al 3 SB 3，，MgO，SiO 2 是理想的。平均组成优选为CaO / Al 3 SB 3 = 0.5-2.0，MgO = 5-30％，SiO 2 SB 2含量为希望达到<10％。在将固体绝热材料堆叠在上层的情况下，绝热性进一步提高。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005305535A Continuous-casting device for molten metal 有权
标题翻译：连续铸造用于金属的装置
公开(公告)号：JP2005305535A
公开(公告)日：2005-11-04
申请号：JP2004129412
申请日：2004-04-26
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJI TAKEHIKO , OTA MITSUHIKO
IPC分类号： B22D11/04 , B22D11/051
摘要： PROBLEM TO BE SOLVED: To provide a continuous-casting device for molten metal, which enables a stable continuous-casting operation and is advantageous from the viewpoint of equipment cost.
SOLUTION: The device is provided with a water-cooling mold, which is vibrated at a constant cycle and consists of a pair of long sides and a pair of short sides, and provided with a solenoid-state electromagnetic coil independently around the mold so as to go round a meniscus part of the molten metal in the mold from an upper part of the water-cooling mold. One electromagnetic coil can be used for a plurality of molds by making the coil movable between a position not interfering with the mold and a mounting position to the mold when removing the mold.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种能够进行稳定的连续铸造操作的熔融金属连续铸造装置，并且从设备成本的观点来看是有利的。解决方案：该装置设有水冷模具，其以恒定的周期振动，由一对长边和一对短边组成，并且在该周围设置有一个螺线管状电磁线圈模具，以便从水冷模具的上部沿着模具中的熔融金属的弯月部分。一个电磁线圈可以用于多个模具，通过使线圈可在不干涉模具的位置和移除模具之间移动到模具的安装位置。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005060739A Method for producing molten steel enabling to prevent nozzle clogging 有权
标题翻译：生产钢铁的方法，以防止喷嘴
公开(公告)号：JP2005060739A
公开(公告)日：2005-03-10
申请号：JP2003207719
申请日：2003-08-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OTA MITSUHIKO , KIYOSE AKITO , OHASHI WATARU
IPC分类号： B22D11/00 , B22D11/10 , B22D11/108 , C21C7/04
摘要： PROBLEM TO BE SOLVED: To provide a producing method for preventing the clogging of a nozzle at the casting time of an REM-added steel.
SOLUTION: In the producing method of the molten steel, the REM added quantity is adjusted according to oxygen and sulfur concentrations in the molten steel and ≤0.020% REM and ≤0.010% O, are contained in the molten steel and further, the composition represented by the following (1) formula, is satisfied. The (1) formula, is [%REM]≤ -0.61[%S]+1.63[%O]+0.0073. Further desirably, Al of ≤0.15% is contained in the molten steel and further, number of pieces containing REM
2 O
2 S having ≥10 μm diameter corresponding to the circle, is 2 .
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种防止在REM添加钢的浇铸时喷嘴堵塞的制造方法。解决方案：在钢水的制造方法中，根据钢水中的氧和硫浓度调节REM添加量，在钢水中含有≤0.020％REM，≤0.010％O，由以下（1）式表示的组成被满足。（1）式为[％REM]≤-0.61 [％S] +1.63 [％O] +0.0073。此外，期望地，钢水中含有≤0.15％的Al，另外，与圆形对应的具有≥10μm直径的REM 2 2 S的片数，是<10个/ cm 2 。版权所有（C）2005，JPO＆NCIPI

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