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1. 发明专利

JP2008280557A Gas-blowing plug for refining 审中-公开
标题翻译：用于精炼的气体喷射头
公开(公告)号：JP2008280557A
公开(公告)日：2008-11-20
申请号：JP2007123659
申请日：2007-05-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TAMURA YOSHIHIRO , MATSUI TAIJIRO , ITO SATOSHI , SATO MASAHARU , GOTO KIYOSHI , IRIE IKUO
IPC分类号： C21C7/072 , C22C38/00 , C22C38/40
摘要： PROBLEM TO BE SOLVED: To provide a gas-blowing plug with which when oxygen is blown from a gas introducing pipe for washing the gas-blowing plug, even in the case of contacting the oxygen with a metal case, it can be prevented that the metal case is ignited and burnt, and the durability of the gas-blowing plug is improved by preventing the leakage of the oxygen from the side surface of the gas-blowing plug and also, the judgement of the end point of the oxygen washing can be secured.
SOLUTION: In the gas-blowing plug constituted by covering a porous refractory 1 having 15-40 vol% porosity with the metal case 2, the material of the metal case is an iron alloy composed of 7-35 mass% Ni, 9-30 mass% Cr and at least one of 1.0-5.0 mass% Si and 1.0-6.0 mass% Al and the balance Fe with inevitable impurities.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于从用于清洗气体吹送塞的气体导入管吹出氧气的气体吹出塞，即使在将氧与金属壳接触的情况下，也可以是防止金属壳体点燃和燃烧，并且通过防止氧气从气体吹出塞的侧表面泄漏而改善了气体吹出塞的耐久性，并且还判断了氧气终点清洗可以保证。解决方案：在由金属壳体2覆盖具有15-40体积％孔隙率的多孔耐火材料1构成的气体吹入塞中，金属壳体的材料是由7-35质量％的Ni构成的铁合金， 9-30质量％的Cr和1.0-5.0质量％的Si和1.0-6.0质量％的Al中的至少一种，余量为Fe和不可避免的杂质。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2010064081A Refractory for injection tuyere and method for producing refractory for injection tuyere 有权
$Refractory for injection tuyere and method for producing refractory for injection tuyere$
标题翻译：注射用耐火材料及其制造用于注射工艺的耐火材料的方法
公开(公告)号：JP2010064081A
公开(公告)日：2010-03-25
申请号：JP2008230204
申请日：2008-09-08
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： TAMURA YOSHIHIRO , GOTO KIYOSHI , YAMAMOTO SHINSUKE , AIDA KOJI , URITA YUSUKE
IPC分类号： B22D41/50 , C04B35/66 , C21C7/00 , F27D1/00
摘要： PROBLEM TO BE SOLVED: To provide a refractory for an injection tuyere by which peeling caused by spalling cracks is reduced and durability is enhanced, and to provide a method for producing the refractory for an injection tuyere. SOLUTION: The refractory 1 for an injection tuyere, which is provided at the injection tuyere of a molten metal vessel and in which a hole passing from a face 1A forming the inner-furnace side face of the molten metal vessel through a face 1B confronted with the iron skin 5 of the molten metal vessel is formed, is composed of two layers of an inner circumferential material 4 facing to the hole 2 and an outer circumferential material 3 surrounding the inner circumferential material 4. The inner circumferential material 4 is obtained by being applied with an alumina-magnesia unshaped refractory, and in which, regarding the face exposed when viewed from the side of the face 1A forming the inner-furnace side face of the molten metal, the elastic modulus of the applied body at 1,200°C is ≤30 GPa, and the outer circumferential material 3 is composed of a material whose linear thermal expansion coefficient at 1,400°C is lower than that of the inner circumferential material. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于喷射风口的耐火材料，通过该耐火材料可以降低由剥落裂纹引起的剥离并提高耐久性，并提供一种用于制造用于注射风口的耐火材料的方法。解决方案：用于注入口的耐火材料1，其设置在熔融金属容器的注入口处，并且其中从形成熔融金属容器的内炉侧面的面1A通过面 1B形成熔融金属容器的铁皮5，由两层面向孔2的内周材料4和围绕内周材料4的外周材料3构成。内周材料4为通过使用氧化铝 - 氧化镁不定形耐火材料获得，并且其中，从形成熔融金属的内炉侧面的面1A的侧面观察到的表面，施加体的弹性模量为1,200 ℃为≤30GPa，外周材料3由在1400℃下的线性热膨胀系数低于内周材料的热膨胀系数的材料构成。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2010029898A Preheating method of nozzle for casting 有权
标题翻译：喷涂喷嘴预热方法
公开(公告)号：JP2010029898A
公开(公告)日：2010-02-12
申请号：JP2008194020
申请日：2008-07-28
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SATO MASAHARU , MATSUI TAIJIRO , TAMURA YOSHIHIRO , ITO SATOSHI
IPC分类号： B22D11/10 , B22D41/60
摘要： PROBLEM TO BE SOLVED: To provide a preheating method for improving shortening of service life of an immersing nozzle due to occurrence of fine cracks on an immersing nozzle surface. SOLUTION: The method for preheating the nozzle for casting in a continuous casting step includes an induction heater disposed with a coil so as to surround the nozzle over the entire part or a part on the outer side of the nozzle for casting. A burner for preheating heads combustion gas toward the inner side of the nozzle for casting is provided and preheats the nozzle by setting the preheating temperature on the outer side higher that on the inner side. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种预热方法，用于在浸渍喷嘴表面上由于发生细小裂缝而改善浸渍喷嘴的使用寿命缩短。解决方案：连续铸造步骤中用于预热铸造用喷嘴的方法包括设置有线圈的感应加热器，以围绕用于铸造的喷嘴的外侧的整个部分或一部分上的喷嘴。提供用于预热头部用于铸造用喷嘴内侧的燃烧气体的燃烧器，通过将外侧的预热温度设定为高于内侧的预热温度来预热喷嘴。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2011084450A Carbon-containing magnesia refractory and degassing method using the same 审中-公开
$Carbon-containing magnesia refractory and degassing method using the same$
标题翻译：含碳镁合金和使用其的脱脂方法
公开(公告)号：JP2011084450A
公开(公告)日：2011-04-28
申请号：JP2009240232
申请日：2009-10-19
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YAMAMOTO MASAAKI , TAKEUCHI HIRONORI , TAKI TOKUO , TAMURA YOSHIHIRO , TAKEUCHI TOMOHIDE
IPC分类号： C04B35/043 , C21C7/00 , C21C7/10
摘要： PROBLEM TO BE SOLVED: To provide a carbon-containing magnesia refractory exhibiting excellent durability against low basicity slag having the basicity (C/S:CaO/SiO 2 ) of ≤2. SOLUTION: The carbon-containing magnesia refractory having durability against low basicity slag contains magnesia, graphite and an Al-Mg alloy, wherein the content of the Al-Mg alloy is 3.5-14 mass% and the mass ratio of Al-Mg alloy to graphite is ≥0.5. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供对碱度（C / S：CaO / SiO 2 ）≤2的低碱性矿渣具有优异的耐久性的含碳氧化镁耐火材料。解决方案：对低碱度炉渣具有耐久性的含碳氧化镁耐火材料包含氧化镁，石墨和Al-Mg合金，其中Al-Mg合金的含量为3.5-14质量％，Al- 镁合金对石墨≥0.5。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2011001621A Method for repairing furnace-bottom refractory in converter having bottom-blowing function 有权
$Method for repairing furnace-bottom refractory in converter having bottom-blowing function$
标题翻译：在具有底吹功能的转换器中修复炉底压力的方法
公开(公告)号：JP2011001621A
公开(公告)日：2011-01-06
申请号：JP2009147155
申请日：2009-06-22
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TAMURA YOSHIHIRO , KON MASARU , TAKEWAKI KENJI , IMAEDA NOBUHIKO , TAKI TOKUO
IPC分类号： C21C5/48 , C04B35/66 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To repair a local worn part extending in the wide range at a furnace-bottom part in a converter having a bottom-blowing function by high quality lining having uniform and sufficient thickness and excellent durability, at quicker time in comparison with the conventional method.SOLUTION: This repairing method includes: a process in which slurry is obtained by kneading a repairing raw material for furnace bottom refractory and a resin demonstrating a self-hardening with the chemical reaction; a process in which the whole local worn part is covered with the slurry by charging the slurry toward the local worn part extending in the wide range at the furnace bottom part in the converter from the furnace opening part; and a process in which the slurry covering the whole worn position is hardened with the chemical reaction generated in the slurry.
摘要翻译：要解决的问题：通过具有均匀且足够的厚度和优异的耐久性的高质量衬里在具有底吹功能的转炉中的炉底部分的范围内修复局部磨损部件，与更快的时间相比，常规方法。解决方案：该修复方法包括：通过捏合炉底耐火材料的修复原料和表现出化学反应的自硬化的树脂获得浆料的方法; 通过将来自炉开口部的转炉中的炉底部的大范围延伸的局部磨损部件向泥浆充填而使浆料全部覆盖的工序; 并且其中覆盖整个磨损位置的浆料与浆料中产生的化学反应硬化的过程。

6. 发明专利

JP2009233729A Preheating method of immersion nozzle for continuous casting, and continuous casting method 有权
标题翻译：连续铸造浸渍喷嘴预热方法及连续铸造方法
公开(公告)号：JP2009233729A
公开(公告)日：2009-10-15
申请号：JP2008085932
申请日：2008-03-28
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： NAKAMURA HISASHI , KONNO TOSHIHIRO , MIFUNE KAZUYUKI , ITO SATOSHI , TAMURA YOSHIHIRO , MATSUI TAIJIRO
IPC分类号： B22D11/10 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To provide a preheating method of an immersion nozzle for continuous casting which is satisfactory in thermal efficiency and in which satisfactory steel quality can be obtained, and a continuous casting method.
SOLUTION: In the preheating method of the immersion nozzle for continuous casting for previously heating, prior to pouring, the immersion nozzle for pouring molten steel from a tundish of a continuous casting machine, induction heating by an induction coil is required to be performed under an inert gaseous atmosphere. Preferably in this case, induction heating is performed by the induction coil disposed near the inner and outer surfaces of the immersion nozzle, and the immersion nozzle has a gas blowing section composed of porous body refractories including carbon, and the other nozzle body surface exclusive of the gas blowing section is covered with an antioxidant.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供热效率良好并且可以获得令人满意的钢质的连续铸造浸渍式喷嘴的预热方法和连续铸造方法。解决方案：在用于预先加热的连铸浸渍喷嘴的预热方法中，在浇注之前，用于从连续铸造机的中间包浇注钢水的浸渍喷嘴，需要通过感应线圈进行感应加热在惰性气体气氛下进行。在这种情况下，优选的是，通过设置在浸入式喷嘴的内表面和外表面附近的感应线圈进行感应加热，并且浸渍喷嘴具有由包括碳的多孔体耐火材料构成的气体吹送部分，而另一个喷嘴体表面不包括气体吹入部分被抗氧化剂覆盖。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2012112577A Kiln furnace, refractory construction method, and refractory block 有权
$Kiln furnace, refractory construction method, and refractory block$
标题翻译：烧结炉，耐火构造方法和耐火块
公开(公告)号：JP2012112577A
公开(公告)日：2012-06-14
申请号：JP2010261540
申请日：2010-11-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KOBAYASHI SHINTARO , MATSUI TAIJIRO , TAIRA HATSUO , TAMURA YOSHIHIRO , UCHIDA TAKAYUKI
IPC分类号： F27D1/16 , C21B7/06 , C21C5/44 , C21C7/00 , F27D1/00 , F27D1/04 , F27D1/06
摘要： PROBLEM TO BE SOLVED: To provide a refractory construction method which can easily construct the straight body of a converter or a blast furnace for iron and steel manufacturing, or a cylindrical kiln furnace such as ladle, and a refractory block.SOLUTION: The kiln furnace includes the body of a cylindrical kiln 1, an iron skin disposed in the inner surface of the kiln, and a lining refractory including a plurality of refractory blocks 4. Each of the plurality of refractory blocks 4 includes a hexagonal operation surface side end surface exposed to the center side of the kiln, and a hexagonal backside end surface larger than the operation surface side end surface. The plurality of refractory blocks 4 is arranged in a manner that the positions of the operation surface side end surfaces in the diameter direction of the kiln are aligned in a reference position defined with the axial center of the kiln set as a reference, arrayed at one stage or more in a ring shape in the circumferential direction of the iron skin inner surface, and stacked in a honeycomb shape.
摘要翻译：要解决的问题：提供一种可以容易地构造用于钢铁制造的转炉或高炉的直体，或诸如钢包的圆柱形窑炉和耐火块的耐火材料施工方法。解决方案：窑炉包括圆柱形窑1的主体，设置在窑内表面的铁皮，以及包括多个耐火块4的衬里耐火材料。多个耐火砖4中的每一个包括暴露于窑的中心侧的六边形操作面侧端面以及比操作面侧端面大的六边形后端面。多个耐火块4的排列方式是将窑的直径方向上的操作面侧端面的位置对准在以窑的轴心为中心的基准位置，作为基准排列在铁皮内表面的圆周方向上形成环状，并且层叠成蜂窝状。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2010091297A Method for measuring modulus of elasticity of refractory and method for selecting refractory 有权
$Method for measuring modulus of elasticity of refractory and method for selecting refractory$
标题翻译：测量耐火弹性模量的方法和选择耐火材料的方法
公开(公告)号：JP2010091297A
公开(公告)日：2010-04-22
申请号：JP2008258861
申请日：2008-10-03
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TAMURA YOSHIHIRO , GOTO KIYOSHI
IPC分类号： G01N3/18
摘要： PROBLEM TO BE SOLVED: To furthermore enhance the precision of the modulus of elasticity during the heating of refractory than before and to select the more proper refractory when the refractory is adapted to an actual furnace in a method of measuring the modulus of elasticity of the refractory during heating and a method for selecting the refractory using the measuring method. SOLUTION: In the method of measuring the modulus of elasticity of the refractory for measuring the modulus of elasticity of the refractory by compressing the refractory as a sample, the modulus of elasticity of the refractory is measured at a temperature selected from a temperature range of 800-1,400°C and at a straining rate selected from a straining rate range of 1.0×10 -6 to 1.0×10 -2 [-/sec] at the time of compression of the sample. Further, the modulus of elasticity thus measured is used to select the refractory as one adapted to the actual furnace. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了进一步提高耐火材料加热期间的弹性模量的精度，并且在测量弹性模量的方法中，当耐火材料适用于实际的炉时，选择更适当的耐火材料的加热中的耐火材料和使用该测量方法选择耐火材料的方法。解决方案：在通过压缩作为样品的耐火材料来测量耐火材料的弹性模量的耐火材料弹性模量的方法中，耐火材料的弹性模量在选自温度范围为800-1,400℃，并且以从1.0×10 -6 的应变速率范围选择到1.0×10 -2 [ - / sec]的应变速率在样品的压缩时间。此外，由此测量的弹性模量用于选择适合于实际炉的耐火材料。版权所有（C）2010，JPO＆INPIT

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