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21. 发明专利

JP2007326110A Immersion nozzle and continuous casting method 有权
标题翻译：浸入式喷嘴和连续铸造方法
公开(公告)号：JP2007326110A
公开(公告)日：2007-12-20
申请号：JP2006157155
申请日：2006-06-06
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ITO SATOSHI , FUKUNAGA SHINICHI , SATO MASAHARU , MATSUI TAIJIRO , NIITSUMA MINERO , TAKEUCHI TOMOHIDE
IPC分类号： B22D41/52 , B22D11/10 , B22D41/54 , C04B35/48
摘要： PROBLEM TO BE SOLVED: To provide an immersion nozzle having improved durability, and to provide a continuous casting method including a preheating step for preheating the immersion nozzle. SOLUTION: The immersion nozzle of this invention is used for the continuous casting method for molten metal, and is characterized in that at least a part of the outer peripheral part contacting to slag is formed of a refractory comprising 70 mass% or more of ZrO 2 and 30 mass% or less of FC (free carbon), or a refractory comprising 70 mass% or more of ZrO 2 , 20 mass% or less of FC (free carbon), and the balance being 10 mass% or less containing a stabilizer of ZrO 2 , and the nozzle is preheated by high-frequency induction heating. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有改善的耐久性的浸渍喷嘴，并提供一种连续铸造方法，其包括用于预热浸入式喷嘴的预热步骤。解决方案：本发明的浸入式喷嘴用于熔融金属的连续铸造方法，其特征在于，与炉渣接触的外周部分的至少一部分由耐火材料形成，该耐火材料包含70质量％以上的ZrO 2 SBS，30质量％以下的FC（游离碳）或含有70质量％以上的ZrO 2 SB / 20以下的耐火材料，20质量％以下的FC （游离碳），余量为10质量％以下，含有ZrO 2 SB稳定剂，喷嘴通过高频感应加热进行预热。版权所有（C）2008，JPO＆INPIT

22. 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

23. 发明专利

JP2005342761A Upper nozzle for continuous casting and its using method 审中-公开
标题翻译：用于连续铸造的上喷嘴及其使用方法
公开(公告)号：JP2005342761A
公开(公告)日：2005-12-15
申请号：JP2004166109
申请日：2004-06-03
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： UEDA KAZUNORI , FUKUNAGA SHINICHI , TSUZUKI TETSUO
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide an upper nozzle for continuous casting and its using method by which the maintenance work after completing the continuous casting can be simplified by preventing the sticking of non-metallic inclusion and metal and also, the quality of a cast slab and the yield of a product can be improved.
SOLUTION: In the whole inner surface or a part of the nozzle hole 14 of the upper nozzle 10 for continuous casting, set by communicating with the upper end part of a flow-out hole 13 of a sliding nozzle 11 for performing the flow-rate control of molten steel, a refractory 15 containing ≥10 mass% dolomite clinker, is lined and MgO contained in the refractory 15 is 20 to 70 mass%. It is desirable to satisfy ≥3 mm thickness T of the refractory 15 and 0.1≤T
2 /L≤10 the relation of the thickness T and a length L of the refractory 15.
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上喷嘴及其使用方法，通过该方法可以通过防止非金属夹杂物和金属的粘附而简化连续铸造完成后的维护工作，并且还可以简化可以改善铸坯和产品的产率。解决方案：在用于连续铸造的上喷嘴10的喷嘴孔14的整个内表面或一部分中，通过与滑动喷嘴11的流出孔13的上端部连通，含有≥10质量％的白云石熟料的耐火材料15是熔融液的流量控制，耐火材料15中含有的MgO为20〜70质量％。希望满足耐火材料15的≥3mm厚度T和耐火材料15的厚度T与长度L的关系为0.1≤T 2 /L≤10。版权所有：（C）2006，JPO＆NCIPI

24. 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

25. 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

26. 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

27. 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

28. 发明专利

JP2012200747A Upper nozzle 有权
标题翻译： UPPER喷嘴
公开(公告)号：JP2012200747A
公开(公告)日：2012-10-22
申请号：JP2011066230
申请日：2011-03-24
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： TSUZUKI TETSUO , KAWARADA KOJI , KIMURA ATSUO , UEDA KAZUNORI , FUKUNAGA SHINICHI , ABE YUSUKE , SAITO TATSUO
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To suppress a decline in back pressure of blown gas in an upper nozzle with a refractory for gas blowing.SOLUTION: In the upper nozzle 10A, the refractory 13 for gas blowing is incorporated on a nozzle hole 12 side of a nozzle body 11 made of a refractory brick, and at least the outside surface of the refractory 13 for gas blowing is surrounded by a metal plate 14. A refractory brick 18 for gas seal is arranged facing the lower surface of the metal plate 14.
摘要翻译：要解决的问题：抑制用于吹气的耐火材料的上喷嘴中的吹气的背压下降。解决方案：在上喷嘴10A中，用于吹气的耐火材料13被结合在由耐火砖制成的喷嘴体11的喷嘴孔12侧，至少气体吹制用耐火材料13的外表面是被金属板14包围。用于气体密封的耐火砖18被布置成面对金属板14的下表面。（C）版权所有（C）2013，JPO＆INPIT

29. 发明专利

JP2012200746A Upper nozzle 有权
标题翻译： UPPER喷嘴
公开(公告)号：JP2012200746A
公开(公告)日：2012-10-22
申请号：JP2011066228
申请日：2011-03-24
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： TSUZUKI TETSUO , KIMURA KAZUMI , MORI TAKAYUKI , MIZOBE ARIHITO , UEDA KAZUNORI , FUKUNAGA SHINICHI , ABE YUSUKE
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To suppress a decline in back pressure of blown gas in an upper nozzle with a refractory for gas blowing.SOLUTION: The upper nozzle 10A includes the refractory 13 for gas blowing with at least its outside surface surrounded by a metal plate 14, and the lower surface of the refractory 13 for gas blowing is joined on an upper surface of an upper plate 20 of a sliding nozzle apparatus via mortar 21. High strength mortar 18 having a hot elastic modulus of 0.6 GPa or more at 1,200°C is arranged facing the lower surface of the metal plate 14 with a thickness of 3 mm or more.
摘要翻译：要解决的问题：抑制用于吹气的耐火材料的上喷嘴中的吹气的背压下降。解决方案：上喷嘴10A包括至少用金属板14包围的外表面进行气体吹送的耐火材料13，并且用于吹气的耐火材料13的下表面在上板的上表面上接合 20是通过砂浆21的滑动喷嘴装置。在1,200℃下具有0.6GPa以上的热弹性模量的高强度砂浆18布置成与金属板14的下表面相对的厚度为3mm以上。版权所有（C）2013，JPO＆INPIT

30. 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

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