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71. 发明专利

JP2005021927A Continuous casting method for preventing refractory consumption and thermal shock cracking 审中-公开
$Continuous casting method for preventing refractory consumption and thermal shock cracking$
标题翻译：用于防止耐火消耗和热冲击的连续铸造方法
公开(公告)号：JP2005021927A
公开(公告)日：2005-01-27
申请号：JP2003188238
申请日：2003-06-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUKUNAGA SHINICHI , TANAKA KAZUHISA
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method for preventing refractory consumption and thermal shock cracking without causing any damages such as separation and cracks under thermal shocks and without causing consumption reaction and degradation of strength or abnormal erosion caused by moisture absorption by CaO composition. SOLUTION: Not less than 30% of the outer circumferential area of an immersion nozzle 10 which includes the discharge port 11 and has an internal body containing a CaO composition is covered with a heat insulator 13. The immersion nozzle 10 covered by the heat insulator 13 is preheated by heating the nozzle from the inside, and molten steel is poured into the immersion nozzle 10 to perform casting. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于防止耐火消耗和热冲击裂纹的连续铸造方法，而不会在热冲击下引起诸如分离和裂纹的任何损坏，并且不引起消耗反应和强度降低或由吸湿引起的异常侵蚀通过CaO组成。解决方案：包括排出口11并具有含有CaO组合物的内部物体的浸没式喷嘴10的外周面积的不小于30％被绝热体13覆盖。浸没式喷嘴10被通过从内部加热喷嘴来对绝热体13进行预热，将钢水倒入浸渍喷嘴10进行铸造。版权所有（C）2005，JPO＆NCIPI

72. 发明专利

JP2004337956A Method for forming refractory lining layer 有权
$Method for forming refractory lining layer$
公开(公告)号：JP2004337956A
公开(公告)日：2004-12-02
申请号：JP2003140629
申请日：2003-05-19
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUKUNAGA SHINICHI , MATSUI TAIJIRO , KUSUNOKI SHINTARO
IPC分类号： B22D41/02 , C04B35/66 , C21C7/00 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for forming a refractory lining layer by which the temperature difference of a heating region is made smaller than that by the conventional method, the occurrence of local cracking and peeling is suppressed and prevented, the possibility of steam explosion, peeling, etc., during heating is eliminated, and is applicable to complicated shapes as well. SOLUTION: A substantially anhydrous material containing refractory powder, a low-temperature thermosetting resin, and high-temperature thermosetting binder are packed into clearances 19 and 23. Since the refractory material 31 is cured by indirectly heating the same, the temperature difference of the heating region is made smaller than that by the conventional method, the occurrence of the local cracking and the peeling is suppressed and prevented, the possibility of the steam explosion, peeling, etc., during heating is prevented, and the dealing with the complicated shapes is made possible as well. COPYRIGHT: (C)2005,JPO&NCIPI

73. 发明专利

JP2004216411A Continuous casting method for special molten steel 审中-公开
标题翻译：特殊铸钢连续铸造方法
公开(公告)号：JP2004216411A
公开(公告)日：2004-08-05
申请号：JP2003005267
申请日：2003-01-14
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUKUNAGA SHINICHI , NISHIHARA RYOJI , HIRAKI YUJI
IPC分类号： B22D11/115 , B22D11/00 , B22D11/124
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method for obtaining a cast slab having almost no surface defect and internal defect by casting special molten steel at high speed.
SOLUTION: The continuous casting method for the special molten steel has the following constitution. When the continuous casting is executed to the special molten steel at high speed of at least 0.7 m/min by using a vertical bending type continuous casting machine having a vertical part of at least 2 m from a meniscus in the mold and provided with a bending part continuous to the vertical part, non-solidified molten steel, in which a solid phase ratio at the first step of the electromagnetic stirring of the cast slab in a region where the electromagnetic stirring is executed inside the bending part by arranging an electromagnetic stirring device at the bending part is 0.3-0.5 and that of at the second step of the electromagnetic stirring is 0.55-0.9, is stirred.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于通过高速浇铸特殊钢水来获得几乎没有表面缺陷和内部缺陷的铸坯的连续铸造方法。＆lt; P＆gt;解决方案：特殊钢水的连续铸造方法具有以下结构。当通过使用垂直弯曲型连续铸造机将模具中的弯月面具有至少2米的垂直部分的连续铸造以至少0.7m / min的高速执行连续铸造，并且具有弯曲在垂直部分连续的部分，未凝固的钢水，其中通过布置电磁搅拌装置在弯曲部分内部进行电磁搅拌的区域中的铸坯的电磁搅拌的第一阶段的固相比在弯曲部分为0.3-0.5，电磁搅拌第二步为0.55-0.9时被搅拌。版权所有（C）2004，JPO＆NCIPI

74. 发明专利

JP2004098082A Method for casting molten stainless steel performing electromagnetic stirring 审中-公开
公开(公告)号：JP2004098082A
公开(公告)日：2004-04-02
申请号：JP2002260099
申请日：2002-09-05
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUKUNAGA SHINICHI , NISHIHARA RYOJI , FURUTA HITOSHI
IPC分类号： B22D11/00 , B22D11/04 , B22D11/10 , B22D11/115 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To provide a method for casting molten stainless steel performing an electromagnetic stirring by which the yield of good cast slab is improved and the cast slab excellent in the quality can stably be produced by preventing defect caused by blow hole and inclusion developed on the surface of the cast slab and inclusion defect in the inner part of the cast slab when the molten stainless steel is cast by using a vertical-bending type continuous caster.
SOLUTION: In the method for casting the molten stainless steel by using the vertical-bending type continuous caster, by which the molten steel in a tundish is poured into a mold through an immersion nozzle by using the bending type continuous caster having the vertical part, the molten steel poured into the mold is cast while performing the electromagnetic stirring.
COPYRIGHT: (C)2004,JPO

75. 发明专利

JP2011143450A Method for predicting breakout of continuous casting 有权
标题翻译：预测连续铸造断裂的方法
公开(公告)号：JP2011143450A
公开(公告)日：2011-07-28
申请号：JP2010006089
申请日：2010-01-14
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： UEDA KAZUNORI , OKAWA TAKESHI , FUKUNAGA SHINICHI
IPC分类号： B22D11/16
摘要： PROBLEM TO BE SOLVED: To provide a method for predicting breakout of continuous casting which, in predicting the occurrence of breakout, can simultaneously suppress erroneous detection and suppress undetection to improve an detection accuracy of breakout and further can prevent damage to continuous casting equipment and lowering in productivity of a cast slab. SOLUTION: The method includes measuring the temperature of a continuous casting die 10 at a predetermined temperature measuring cycle tm by a temperature detecting end 11 buried in the continuous casting die 10 and predicting breakout using a time-series temperature transition of the continuous casting die 10 obtained from the results of temperature measurement. The time-series temperature transition is composed of temperature transitions of a plurality of time-series sampling groups extracted at each sampling cycle ts in a rage of 0.2 to 5 sec from the results of temperature measurement of the temperature detecting end 11, and the time-series sampling groups are shifted within the sampling cycle ts for each integral multiple of the temperature measuring cycle tm. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于预测连续铸造断裂的方法，其可以在预测断裂的发生时同时抑制错误检测并且抑制不检测以提高突破的检测精度，并且还可以防止连续铸造的损坏设备和降低铸坯的生产率。解决方案：该方法包括通过埋在连续铸模10中的温度检测端11在预定的温度测量周期tm下测量连续铸模10的温度，并使用连续铸造模具10的时间序列温度转变来预测断裂从温度测量结果获得的铸模10。时间序列温度转变由在每个采样周期ts提取的多个时间序列采样组的温度变化组成，温度检测结束11的温度测量结果为0.2至5秒，对于温度测量周期tm的每个整数倍，系列采样组在采样周期ts内移位。版权所有（C）2011，JPO＆INPIT

76. 发明专利

JP2010284685A Continuous casting method of steel 有权
标题翻译：钢的连续铸造方法
公开(公告)号：JP2010284685A
公开(公告)日：2010-12-24
申请号：JP2009140412
申请日：2009-06-11
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SEZE AKIFUMI , TANI MASAHIRO , FUKUNAGA SHINICHI , OKAWA TAKESHI
IPC分类号： B22D11/10 , B22D11/00
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method of steel capable of suppressing and further preventing any trouble such as oozing of molten steel and cracking of a surface of a cast slab caused by the mixing of the molten steel component at a joint between a molten steel to be precedingly cast and a molten steel to be successively cast when the sequence casting of dissimilar steels is performed by using a vertical bending type continuous casting machine, and performing the industrially consistent casting. SOLUTION: In the continuous casting method of two kinds of molten steels A, B which can be continuously cast in a single body, and have different ranges of the chemical components by using a vertical bending type continuous casting machine 10, the sequence casting of dissimilar steels is performed by using the molten steel A and the molten steel B where the carbon concentration CM mass% and the phosphor concentration PM mass% of the mixed molten steel of an optional mixing ratio at a joint mixed part between the precedingly cast molten steel A and the molten steel B to be successively cast to the molten steel A satisfy inequality (CM)×(PM)≤0.016. In Fig.1, the mark (○) denotes the result in which any considerable oozing of the molten steel is not present and the casting is excellent, and the mark (black circle) denotes the result in which considerable oozing of the molten steel is generated. Further, an arrow denotes the transition (assumption) of the carbon concentration and the phosphor concentration from the molten steel A in a front ladle (the starting point of the arrow) to the molten steel B in a rear ladle (the terminating point of the arrow). COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种钢的连续铸造方法，其能够抑制和进一步防止任何诸如钢水渗出和铸造板的表面由于钢水组分在通过使用垂直弯曲型连续铸造机进行异种钢的顺序铸造，并且进行工业上一致的铸造时，要进行铸造的钢水与要连续铸造的钢水的接合。解决方案：在可以连续铸造在单体中并且使用垂直弯曲型连续铸造机10具有不同范围的化学成分的两种熔融钢A，B的连续铸造方法中，通过使用钢水A和钢水B进行异种钢的铸造，其中在先前铸造的接合混合部分处，任选混合比的混合钢水的碳浓度CM质量％和磷浓度PM质量％钢水A和连续浇铸到钢水中的钢水B满足不等式（CM）×（PM）≤0.016。在图1中，标记（○）表示不存在钢水的任何相当大的渗出，铸造性优异的结果，标记（黑色圆圈）表示钢水相当渗出的结果为产生。此外，箭头表示碳钢浓度的转变（假设）和来自钢包中的钢水A（箭头的起点）到后钢包中的钢水B的浓度（终点箭头）。版权所有（C）2011，JPO＆INPIT

77. 发明专利

JP2010115713A Immersion nozzle for continuous casting 有权
标题翻译：连铸喷嘴
公开(公告)号：JP2010115713A
公开(公告)日：2010-05-27
申请号：JP2010044028
申请日：2010-03-01
申请人： Akechi Ceramics Co Ltd , Nippon Steel Corp , 新日本製鐵株式会社 , 明智セラミックス株式会社
发明人： FUKUNAGA SHINICHI , MATSUI TAIJIRO , KATO YOSHINARI , KIKUCHI JUN , YAMAGUCHI KAZUHIRO
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide an immersion nozzle for continuous casting for an aluminum-containing steel or the like which feeds a molten steel from a tundish to a mold, wherein the effective suppression in the narrowing and clogging of the inner holes of the immersion nozzle, and further, prevention of the cracks of the nozzle caused by thermal shock are achieved.
SOLUTION: In the immersion nozzle for continuous casting used after preheating to ≥800°C, sheet members A, B composed of a carbonaceous material having a carbon content of ≥25 mass% are inserted into the wall face of a nozzle body 2 concentrically with nozzle inner holes 3, the sheet members A, B are covered with electrical insulators S, and are electrically insulated from the material composing the nozzle body 2 so as to prevent the cracks of the nozzle caused by the thermal shock.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于连续铸造用于含铝钢等的浸入式喷嘴，其将钢水从中间包送入模具，其中有效抑制内孔的变窄和堵塞，并且进一步防止由热冲击引起的喷嘴裂纹。解决方案：在预热至≥800℃之后使用的连续浇铸用浸渍喷嘴中，将碳含量≥25质量％的碳质材料构成的片材A，B插入喷嘴体的壁面 2与喷嘴内孔3同心地，片状构件A，B被电绝缘体S覆盖，并且与构成喷嘴体2的材料电绝缘，以防止由热冲击引起的喷嘴的裂纹。版权所有（C）2010，JPO＆INPIT

78. 发明专利

JP2010058161A Machine and method for continuously casting molten metal 有权
标题翻译：连续铸造金属的机器和方法
公开(公告)号：JP2010058161A
公开(公告)日：2010-03-18
申请号：JP2008228380
申请日：2008-09-05
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANI MASAHIRO , FUKUNAGA SHINICHI , SEZE AKIFUMI
IPC分类号： B22D11/10 , B22D41/24
摘要： PROBLEM TO BE SOLVED: To provide a machine and a method for continuously casting molten metal, which prevent adhesion of nonmetallic inclusions to the inside of a continuous casting nozzle. SOLUTION: The continuous casting machine includes a sliding nozzle and a movable plate driving device 6 for driving movable plates 3. Among the portions in openings 4 of fixed plates 2, portions which are not covered with the movable plates 3, become a runner 5 through which molten metal passes. The movable plate driving device 6 oscillates the movable plates 3 in the range of ≥0.5 mm and ≤15 mm of amplitude while restraining the variations of an area S 1 of the runner 5 in the range of ±5%, and the oscillation frequency is in the range of ≥1/sec and ≤100/sec. The movable plates 3 preferably comprise two movable plates. By continuously casting molten metal while oscillating movable plates, adhesion of nonmetallic inclusions to the inner wall of a cylindrical inner hole of an immersion nozzle is greatly reduced. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于连续铸造熔融金属的机器和方法，其防止非金属夹杂物粘附到连续铸造喷嘴的内部。解决方案：连续铸造机包括滑动喷嘴和用于驱动可动板3的可动板驱动装置6.在固定板2的开口4的部分中，未被可移动板3覆盖的部分成为熔融金属通过的流道5。可移动板驱动装置6使可动板3在≥0.5mm和≤15mm振幅的范围内摆动，同时将流道5的面积S 1 的变化限制在±5的范围内％，振荡频率在≥1/ sec和≤100/ sec的范围内。可移动板3优选地包括两个可动板。通过在振动可移动板的同时连续铸造熔融金属，非金属夹杂物对浸入式喷嘴的圆筒形内孔的内壁的粘附性大大降低。版权所有（C）2010，JPO＆INPIT

79. 发明专利

JP2010058141A Machine and method for continuously casting molten metal 有权
标题翻译：连续铸造金属的机器和方法
公开(公告)号：JP2010058141A
公开(公告)日：2010-03-18
申请号：JP2008224683
申请日：2008-09-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANI MASAHIRO , FUKUNAGA SHINICHI , SEZE AKIFUMI
IPC分类号： B22D11/10 , B22D41/24
摘要： PROBLEM TO BE SOLVED: To provide a machine and a method for continuously casting molten metal, which prevent adhesion of nonmetallic inclusions to the inside of a continuous casting nozzle. SOLUTION: A sliding nozzle 1 having two movable plates (3a, 3b) oscillating along fixed plates 2 is used. Among the portions in openings 4 of the fixed plates 2, portions which are not covered with the two movable plates 3, become a runner 5 through which molten metal passes. The position of the runner in the openings of the fixed plates is oscillated by oscillating the two movable plates 3. Thereby, the flow of the molten metal in a cylindrical inner hole 16 is periodically moved from one end to the other end of the cylindrical inner hole 16, so that the portion of the flow where the flow rate of the molten metal is constantly kept low becomes inexistent. Thus, adhesion of nonmetallic inclusions to the cylindrical inner hole 16 of an immersion nozzle is reduced. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于连续铸造熔融金属的机器和方法，其防止非金属夹杂物粘附到连续铸造喷嘴的内部。解决方案：使用具有沿着固定板2摆动的两个可动板（3a，3b）的滑动喷嘴1。在固定板2的开口4的部分中，未被两个可移动板3覆盖的部分成为熔融金属通过的流道5。通过使两个可移动板3摆动来使转子在固定板的开口中的位置摆动。由此，圆柱形内孔16中的熔融金属的流动周期性地从圆柱形内孔16的一端移动到另一端孔16，使得熔融金属的流量恒定保持为低的流动部分不再存在。因此，非金属夹杂物与浸没式喷嘴的圆筒状内孔16的粘合性降低。版权所有（C）2010，JPO＆INPIT

80. 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

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