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51. 发明专利

JP2007319923A Continuous casting method for molten steel 有权
标题翻译：铸钢连续铸造方法
公开(公告)号：JP2007319923A
公开(公告)日：2007-12-13
申请号：JP2006155899
申请日：2006-06-05
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANI MASAHIRO , FUKUNAGA SHINICHI , TANAKA KAZUHISA , SEZE AKIFUMI
IPC分类号： B22D11/115 , B22D11/04 , B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method for molten steel where the improvement effect of slab surface defects and inside defects can be stably obtained while obtaining the lubrication improvement effect of a mold and a solidified shell.
SOLUTION: The continuous casting method for molten steel is characterized in that, using a mold formed with long sides and short sides 42 and having a long side length of ≥800 mm, an immersion nozzle 10 feeding molten steel into the mold has four or more discharge ports 14 and lies in a plurality of steps to a height direction, and, as the molten steel is fed from the discharge ports 14 into the mold, so as to be directed to the short sides 42, alternating current is made to flow through a solenoid type electromagnetic coil 20 arranged so as to surround the mold or a solenoid type electromagnetic coil 20 buried in a mold wall, thus electromagnetic force is applied to the molten steel in the mold, and casting is performed. The discharge flows 22 of the molten steel from the discharge ports 14 are collided against a flow 21a vertical to the short sides of the mold produced by the electromagnetic force, and the reduction in the speed of the discharge flows is attained, thus the improvement effect of slab surface defects and inside defects can be stably obtained.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种在获得模具和固化壳的润滑改进效果的同时稳定地获得板坯表面缺陷和内部缺陷的改善效果的钢水的连续铸造方法。解决方案：钢水的连续铸造方法的特征在于，使用形成有具有长边长度≥800mm的长边和长边42的模具，将钢水进料到模具中的浸渍喷嘴10具有四个或更多个排出口14并且在高度方向上设置多个台阶，并且当钢水从排出口14进入模具中时，被引导到短边42，形成交流电流过设置为围绕模具的螺线管型电磁线圈20或埋在模具壁中的螺线管型电磁线圈20，从而对模具中的钢水施加电磁力，并进行铸造。来自排出口14的钢水的排出流22与由电磁力产生的模具的短边垂直的流动面21a碰撞，达到排出流动速度的降低，可以稳定地获得板坯表面缺陷和内部缺陷。版权所有（C）2008，JPO＆INPIT

52. 发明专利

JP2005125403A Long nozzle used for continuous casting and continuous casting method using it 审中-公开
标题翻译：用于连续铸造的长喷嘴和使用它的连续铸造方法
公开(公告)号：JP2005125403A
公开(公告)日：2005-05-19
申请号：JP2003366461
申请日：2003-10-27
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： UEDA KAZUNORI , FUKUNAGA SHINICHI , YAMAZAKI YASUO , TANAKA KAZUHISA
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To provide a long nozzle used for continuous casting and a continuous casting method using this nozzle with which this long nozzle can repeatedly be used by restraining the sticking of solidified steel and inclusions and the quality of a cast slab is improved without generating the contamination of molten steel caused by the simplification of work and washing with oxygen, and a refractory cost can be reduced.
SOLUTION: In the long nozzle 10 used for pouring the molten steel 13, 23 into a tundish 12 from ladles 11, 22, in at least a part of the contacting surface 18 with the molten steel at the inside of the long nozzle main body 16, a refractory 20 containing ≥10 mass% dolomite clinker, is lined. The continuous casting method using this long nozzle 10 is performed as the followings, with which the long nozzle 10 is fitted to the ladle 11, and after pouring the molten steel 13 into the tundish 12, the long nozzle 10 is taken out from the ladle 11 and fitted to the other ladle 22 without washing the long nozzle 10 and further, the molten steel 23 is poured.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供用于连续铸造的长喷嘴和使用该喷嘴的连续铸造方法，通过该喷嘴可以通过该喷嘴重复使用该长喷嘴，从而通过抑制凝固的钢和夹杂物的粘附以及铸造板坯的质量在不会由于工作简单化和氧气洗涤而产生钢水污染的情况下进行改善，并且可以降低耐火材料成本。解决方案：在用于将钢水13,23浇注到长度为11,22的中间包12的长喷嘴10中，在接触表面18的至少一部分中与长喷嘴内部的钢水主体16是含有≥10质量％白云石熟料的耐火材料20。使用这种长喷嘴10的连续铸造方法如下进行，长喷嘴10通过该连续铸造方法装配到浇包11，并且在将钢水13浇注到中间包12中之后，将长喷嘴10从钢包中取出并且在不洗涤长喷嘴10的情况下安装到另一个钢包22上，此外，倾倒钢水23。版权所有（C）2005，JPO＆NCIPI

53. 发明专利

JP2005021954A Method for forming lining layer of nozzle refractory 有权
$Method for forming lining layer of nozzle refractory$
标题翻译：用于形成喷嘴内衬层的方法
公开(公告)号：JP2005021954A
公开(公告)日：2005-01-27
申请号：JP2003192193
申请日：2003-07-04
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUKUNAGA SHINICHI , MATSUI TAIJIRO , TAKEUCHI TOMOHIDE
IPC分类号： B22D11/10 , B22D41/52 , B22D41/54 , C04B35/66
摘要： PROBLEM TO BE SOLVED: To provide a method for forming the lining layer of a nozzle refractory which is capable of reducing the temperature difference between heating areas, suppressing and preventing local cracks or separation, and adaptable to a complicated shape. SOLUTION: Heaters 30 and 48 which have temperature-controllable heating units 31 and 49 and which have an external shape matching the surface shape of a lining layer 13 to be formed and are heated by electric resistance are disposed on the surface 12 of a nozzle refractory 11 to form a pre-formed base material via a space. Substantially anhydrous powder refractory containing raw refractory, low-temperature thermosetting resin and high-temperature thermosetting binder is filled in this space and heated by the heaters 30 and 48. The powder refractory is thus subjected to primary baking in a low-temperature region and further subjected to secondary baking in a high-temperature region to form the lining layer 13. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够降低加热区域之间的温差，抑制和防止局部裂纹或分离并且适应于复杂形状的喷嘴耐火材料的衬里层的形成方法。解决方案：具有温度可控的加热单元31和49并且具有与待形成并被电阻加热的衬里层13的表面形状匹配的外部形状的加热器30和48设置在喷嘴耐火材料11，以经由空间形成预成形的基材。将含有原料耐火材料，低温热固性树脂和高温热固性粘合剂的基本上无水的粉末耐火材料填充在该空间中，并由加热器30和48加热。因此，粉末耐火材料在低温区域进行初步烘烤，并且进一步在高温区域进行二次烘烤以形成衬里层13.版权所有（C）2005，JPO＆NCIPI

54. 发明专利

JP2004148400A Immersion nozzle for continuous casting 有权
公开(公告)号：JP2004148400A
公开(公告)日：2004-05-27
申请号：JP2002319760
申请日：2002-11-01
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORI KENICHI , HIRAMOTO YUJI , FUKUNAGA SHINICHI , KONISHI JUNPEI , MOROHOSHI TAKASHI
IPC分类号： B22D11/10 , B22D11/00 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide an immersion nozzle for continuous casting with which a defective product caused by gas bubble and inclusion are prevented and the quality of a produced cast slab is made to be good.
SOLUTION: This immersion nozzle is provided with a cylindrical part 11 in which molten steel is made to flow, a first spouting part 12 integrally connected with the bottom of the cylindrical part 11 and provided with a plurality of small spouting holes 14 at both sides, and a second spouting part 15 forming a space part 17 covering the plurality of small spouting holes 14 disposed at both sides and provided with large spouting holes 16 spouting molten steel flowing through the cylindrical part 11 and the first spouting part 12 to the outside from the space part 17, respectively.
COPYRIGHT: (C)2004,JPO

55. 发明专利

JP2004106021A Method for casting molten stainless steel using vertical-bending type continuous caster 审中-公开
标题翻译：使用垂直弯曲型连续铸造铸造不锈钢的方法
公开(公告)号：JP2004106021A
公开(公告)日：2004-04-08
申请号：JP2002272793
申请日：2002-09-19
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUKUNAGA SHINICHI , NISHIHARA RYOJI , FURUTA HITOSHI , KISHIGAMI KIMIHISA
IPC分类号： B22D11/10 , B22D11/00 , B22D11/04 , B22D11/041
摘要： PROBLEM TO BE SOLVED: To provide a method for casting molten stainless steel using a vertical-bending type continuous caster with which a cast slab excellent in the quality can stably be produced at high speed casting by preventing defect caused by blow holes and inclusion produced 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 the vertical-bending type continuous caster.
SOLUTION: In the method for casting the molten stainless steel by using the vertical-bending type continuous caster, pouring the molten steel in a tundish into a mold through an immersion nozzle, the depth of a spouting part in the immersion nozzle is dipped into > 300 mm from a meniscus and the molten steel poured into the mold is electromagnetically stirred.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种使用垂直弯曲型连铸机浇铸熔融不锈钢的方法，通过防止由于气孔造成的缺陷，可以在高速铸造中稳定地制造质量优异的铸坯，通过使用垂直弯曲型连续铸造机铸造熔融不锈钢时，在铸坯表面产生的夹杂物和铸坯内部的夹杂物缺陷。解决方案：在通过使用垂直弯曲连续铸造机浇铸熔融不锈钢的方法中，通过浸渍喷嘴将钢水浇注到模具中，浸渍喷嘴中的喷射部分的深度为从弯月面浸入> 300mm，并将注入模具的钢水电磁搅拌。版权所有（C）2004，JPO

56. 发明专利

JP2012000626A Mold for continuous casting 有权
标题翻译：模具连续铸造
公开(公告)号：JP2012000626A
公开(公告)日：2012-01-05
申请号：JP2010136277
申请日：2010-06-15
申请人： Mishima Kosan Co Ltd , Nippon Steel Corp , 三島光産株式会社 , 新日本製鐵株式会社
发明人： SUENAGA KENYA , HIRANO SHINICHI , OKAZAKI TAKESHI , OGAWA YUICHI , FUKUNAGA SHINICHI , OKAWA TAKESHI , UEDA KAZUNORI
IPC分类号： B22D11/04 , B22D11/055 , B22D11/059
摘要： PROBLEM TO BE SOLVED: To provide a mold for continuous casting which can manufacture a cast piece favorable in quality by suppressing a delay of the coagulation of the cast piece.SOLUTION: A swollen part 22 with a water level position of molten steel as an upper position P1 and a part apart from the upper position toward a lower part by 300 mm or longer as a lower position P2 is formed at the side 21 of a molten steel contact face 21 of a cooling member 12 of the mold 10 for continuous casting, a vertical cross section of the swollen part is formed of three or more and not more than eight linear parts L1 to L3 which are continuous to the lower position from the upper position, angles θ1, θ2 formed of the adjacent linear parts are brought into a range of not smaller than 174° and not larger than 179.97°, the maximum height h of the swollen part with a straight line L4 connecting the upper position and the lower position as a bottom side is brought into a range of not lower than 0.2 mm and not higher than 5 mm, water introduction grooves 17 to 19 between adjacent fastener 15 in the vertical direction at the rear face side of the cooling member are formed wide in width, and flat cross-sectional areas of the water introduction grooves 17, 19 at side portions of the fastener are brought into a range of minus 20% to plus 20% of the flat cross-sectional area of the water introduction groove between the fastener in the vertical direction.
摘要翻译：要解决的问题：提供一种连续铸造用模具，其能够通过抑制铸件的凝固延迟来制造质量上良好的铸件。解决方案：在侧面21处形成具有作为上部位置P1的钢水的水位位置的膨胀部分22和从上部位置向下部向下部延伸300mm或更长的部分作为下部位置P2 在用于连续铸造的模具10的冷却构件12的钢水接触面21中，膨胀部的垂直截面形成为与下部连续的三个以上且不多于八个直线部分L1〜L3 从相邻的直线部形成的角度θ1，θ2从上部位置的位置变为不小于174度且不大于179.97°的范围，具有连接上部的直线L4的膨胀部的最大高度h 作为底侧的下方位于不低于0.2mm且不高于5mm的范围内，相邻的紧固件15之间在冷却构件的后表面侧的垂直方向上的水引入槽17至19 形成w 宽度方向上的水的导入槽17,19的宽度方向的平坦的横截面积和紧固件的侧部的水导入槽17,19的平坦的横截面积被设定在导水槽的平坦截面积的20％〜20％的范围内紧固件在垂直方向。版权所有（C）2012，JPO＆INPIT

57. 发明专利

JP2011240384A Powder sticking preventing method for continuous casting mold 有权
标题翻译：用于连续铸造模具的粉末焊接预防方法
公开(公告)号：JP2011240384A
公开(公告)日：2011-12-01
申请号：JP2010115794
申请日：2010-05-19
申请人： Nippon Steel Corp , Nippon Steel Engineering Co Ltd , 新日本製鐵株式会社 , 新日鉄エンジニアリング株式会社
发明人： OKAWA TAKESHI , UEDA KAZUNORI , FUKUNAGA SHINICHI , MIURA YASUAKI
IPC分类号： B22D11/108 , B22D11/04
摘要： PROBLEM TO BE SOLVED: To provide a powder sticking preventing method for a continuous casting mold capable of preventing deposition of powder on a back surface of a short side mold plate, and capable of preventing the oscillation synchronization failure of the short side mold plate in continuous casting using the continuous casting mold fastening two short side mold plates 1 with two long side mold plates 4.SOLUTION: Liquid is splayed or gas is blown to a back surface side of a short side frame 3, especially a short side frame surface, and a structure formed by a short side driving device 7 or cooling water piping 8. Thus, deposition of powder on the short side mold plate back surface can be prevented, and oscillation synchronization failure of the short side mold plate can be prevented.
摘要翻译：要解决的问题：为了提供一种能够防止粉末沉积在短边模板的背面上的连续铸模的粉末粘附防止方法，并且能够防止短边模具的振动同步失效使用连续铸造模具连续铸造板，将具有两个长边模板4的两个短边模板1紧固。解决方案：液体被吹出或气体吹到短边框架3的背面侧，特别是短侧框架表面和由短边驱动装置7或冷却水管道8形成的结构。因此，可以防止粉末沉积在短边模板背面上，并且可以防止短边模板的振荡同步故障被阻止版权所有（C）2012，JPO＆INPIT

58. 发明专利

JP2011220810A Method for detecting metal defect and defect detection device 有权
标题翻译：检测金属缺陷和缺陷检测装置的方法
公开(公告)号：JP2011220810A
公开(公告)日：2011-11-04
申请号：JP2010089714
申请日：2010-04-08
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： G01N21/892
摘要： PROBLEM TO BE SOLVED: To provide a method for detecting a metal defect and a defect detection device, which allow clear detection of a defect portion by improving the uniformity, and increasing the brightness, of a non-defect portion of an imaged image of an inspecting surface when etching the inspecting surface of a metal sample to cause the defect to appear and imaging an image of the inspecting surface using an imaging device to detect the defect.SOLUTION: A reflector 3 is disposed so as to face an inspecting surface 2, in which a surface of the reflector 3 facing the inspecting surface 2 (a reflection surface 4) has a diffuse reflectance k of 70% or more. An imaging device 6 for imaging the inspecting surface 2 and a light source 5 for illumination are disposed. The inspecting surface 2 is then imaged by the imaging device 6 while the light from the light source 5 is irradiated onto the reflection surface 4. Sufficient brightness is ensured in any area of non-defect portions 9 on the inspecting surface 2, because the light is incident widely and uniformly to the inspecting surface by providing a sufficient size of the reflection surface 4. Therefore, a defect portion 8 can be imaged with sufficient contrast.
摘要翻译：要解决的问题：提供一种用于检测金属缺陷的方法和缺陷检测装置，其通过改善成像的非缺陷部分的均匀性和增加亮度的方式来清晰地检测缺陷部分当蚀刻金属样品的检查表面以引起缺陷出现并使用成像装置成像检查表面的图像以检测缺陷时，检查表面的图像。解决方案：反射器3设置成面对检查表面2，其中反射器3的面向检查表面2（反射表面4）的表面具有70％以上的漫反射率k。设置用于使检查表面2成像的成像装置6和用于照明的光源5。然后，由摄像装置6对检查面2进行成像，同时将来自光源5的光照射在反射面4上。由于光在检查面2上的非缺陷部9的任意区域都能够保证足够的亮度通过提供足够的反射表面4的尺寸将其广泛均匀地入射到检查表面。因此，可以以足够的对比度对缺陷部分8进行成像。版权所有（C）2012，JPO＆INPIT

59. 发明专利

JP2011203201A Metal defect detection method 有权
标题翻译：金属缺陷检测方法
公开(公告)号：JP2011203201A
公开(公告)日：2011-10-13
申请号：JP2010072920
申请日：2010-03-26
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： G01N21/892 , G01B11/30
摘要： PROBLEM TO BE SOLVED: To provide a metal defect detection method capable of highlighting defect through etching treatment of the inspection surface of a metal sample, while when detection of the defect is carried out by imaging the inspection surface with an imaging device, brightness of non-defect parts on the imagery of inspection surface is made to be homogenized and brightened, leading clear defection of defect part.SOLUTION: An inspection surface 2 of a metal sample 1 is polished unidirectionally, by etching treatment of the metal sample 1, defect in metal material is highlighted, linearly continuous light sources or a light source (a linear light source 4) a plurality of point light source arranged linearly are used as irradiating light source, a linearly direction 17 of the linear light source 4 and the polished direction 11 are presumed to be a same direction, the inspection surface 2 is irradiated by the linear light source 4 from a perpendicular direction to the polished direction 11, and the inspection surface 2 is imaged by an imaging device 3. Thereby, brightness of the non-defect parts in the inspection imaged imageries is to be homogenized and brightened, making the defect part 6 to be detectable clearly.
摘要翻译：要解决的问题：为了提供能够通过金属样品的检查表面的蚀刻处理来突出显示缺陷的金属缺陷检测方法，当通过用成像装置对检查表面进行成像来进行缺陷的检测时，将检查表面的图像中的不完整部分均匀化并且变亮，导致缺陷部分的清晰缺陷。解决方案：金属样品1的检查表面2被单向抛光，通过蚀刻处理金属样品1，缺陷金属材料被突出显示，线性连续光源或线性排列的多个点光源的光源（线性光源4）被用作照射光源，线性光源4的直线方向17和抛光方向11 被认为是相同的方向，检查表面2被线性光源4从与抛光的垂直方向垂直的方向照射检查表面2由成像装置3成像。因此，检查成像的图像中的非缺陷部分的亮度将被均匀化和增亮，使缺陷部分6清楚可见。

60. 发明专利

JP2011020144A Continuous casting method for steel 有权
标题翻译：钢的连续铸造方法
公开(公告)号：JP2011020144A
公开(公告)日：2011-02-03
申请号：JP2009166949
申请日：2009-07-15
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
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method for steel which, in sequential casting of steel of different grades, achieves improvement in a yield by minimizing component mixing at the joint part of molten steel of a steel grade to be cast in advance and molten steel of a steel grade to be cast in succession thereto, and at the same time achieves prevention of a casting trouble caused by a joining defect in the solidified shell of the molten steel cast in advance and the molten steel cast in succession, and thereby performing industrially stable casting.
SOLUTION: The continuous casting method uses molten steel A and B of different two steel grades each of which can be continuously cast as single molten steel and which have the ranges of chemical component amounts different for different molten steel, and the method pours the molten steel A into a mold and cast it in advance, then pours the molten steel B to be cast in succession to the molten steel A into the mold, In the method, the molten steel A and molten steel B are used in which the relationship between the solidification finishing temperature TS1(°C) of the molten steel A and the solidification starting temperature TL2(°C) of the molten steel B satisfies inequality; TS1
摘要翻译：要解决的问题：提供一种连续铸钢方法，其在不同等级的钢的连续铸造中，通过最小化待铸钢等级的钢水的接合部分的组分混合来实现产率的提高预先连续铸造钢种的钢水，同时可以预防铸钢件的凝固壳中的接合缺陷引起的铸造故障，连续铸造的钢水，从而进行工业上稳定的铸造。
解决方案：连续铸造方法使用不同的两种钢种的钢水A和B，其可以连续铸造为单一钢水，并且具有不同钢水的化学成分量的范围不同，并且该方法倾倒将钢水A预先浇注成型，然后将与钢水A连续铸造的钢水B倒入模具中。在该方法中，使用钢水A和钢水B，其中，钢水B的凝固终止温度TS1（℃）与钢水B的凝固开始温度TL2（℃）之间的关系满足不等式; TS1

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