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1. 发明专利

JP2007169707A Method for producing dephosphorizing agent for steelmaking using sintering machine 有权
标题翻译：使用烧结机生产用于制钢的去磷化剂的方法
公开(公告)号：JP2007169707A
公开(公告)日：2007-07-05
申请号：JP2005368192
申请日：2005-12-21
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： NAKANO MASANORI , MATSUO MITSUTAKA , KITAGAWA ITSURO , SASAKI NAOTO
IPC分类号： C22B1/16 , C21C1/02 , C21C7/064
摘要： PROBLEM TO BE SOLVED: To provide a method for stably and inexpensively producing a dephosphorizing agent for steelmaking while maintaining excellent product yield and productivity, by sintering a raw material using a sintering machine without using a special granulation process such as a PHS process and a melting accelerator such as CaF.
SOLUTION: The method for producing the dephosphorizing agent for steelmaking using a sintering machine is provided in which a raw material prepared by adding a carbonaceous material to limestone fines and iron-ore fines is mixed, granulated into quasi-particles and sintered using a sintering machine. The metod is characterized in that the ratio of Ca/Fe (molar ratio) in the raw material is controlled to be in the range of 1.5 to 2.5 and also the grain size of the above limestone and iron ore is controlled to be ≤3 mm.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：待解决的问题：提供一种稳定且廉价地生产用于炼钢的脱磷剂，同时保持优异的产物产率和生产率的方法，通过使用烧结机烧结原料而不使用特殊的造粒方法如PHS工艺和熔融加速剂如CaF。解决方案：提供一种使用烧结机制造炼钢脱磷剂的方法，其中将通过将碳质材料添加到石灰石细粉和铁矿粉中制备的原料混合，制成准颗粒并使用烧结机。其特征在于，将原料中的Ca / Fe（摩尔比）的比例控制在1.5〜2.5的范围内，将上述石灰石和铁矿石的粒径控制在≤3mm 。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2010013685A Method for dephosphorizing molten iron 有权
标题翻译：用于去磷化铁的方法
公开(公告)号：JP2010013685A
公开(公告)日：2010-01-21
申请号：JP2008173368
申请日：2008-07-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KITAGAWA ITSURO , WADA TOSHIYUKI
IPC分类号： C21C1/02 , C21C5/30 , C21C5/46
摘要： PROBLEM TO BE SOLVED: To provide an efficient molten metal dephosphorizing method using a converter-type refining vessel, in which the degree of progression of the dephosphorizing reaction in a furnace is controlled in a fixed range by using a simple method and the resultant dephosphorized molten metal has little unevenness of P concentration.
SOLUTION: In the molten metal dephosphorizing method using the converter-type refining vessel, any one or more among the height of a lance, oxygen feeding velocity, and kind and quantity of the bottom-blowing gas, are adjusted so that the result value of decarburize-oxygen efficiency calculated by using a prescribed formula from the analyzed value of waste gas and the flowing quantity of the waste gas, follows the target change curve pre-set in each treating pattern.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供使用转炉型精制容器的有效的熔融金属脱磷方法，其中通过使用简单的方法将炉中的脱磷反应的进行程度控制在固定的范围内，并且所得脱磷熔融金属的P浓度不均匀。解决方案：在使用转炉型精炼容器的熔融金属脱磷方法中，调节喷枪的高度，供氧速度以及底吹气体的种类和数量之中的任何一个或多个，根据废气的分析值和废气的流量使用规定的公式计算出的脱碳氧效率的结果值遵循在各处理模式中预先设定的目标变化曲线。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2009287965A Molten metal measuring device 有权
标题翻译：金属测量装置
公开(公告)号：JP2009287965A
公开(公告)日：2009-12-10
申请号：JP2008138233
申请日：2008-05-27
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ASAHARA AKIFUMI , KITAGAWA ITSURO , KONDO HIROYUKI
IPC分类号： G01N33/20 , G01N21/64
摘要： PROBLEM TO BE SOLVED: To improve measuring precision by improving a lighting ratio in a molten metal measuring device for measuring a molten metal having a floating material on its surface. SOLUTION: The molten metal measuring device 10 includes a measuring device 11 for performing either one of the component analysis of the molten metal M and the measurement of temperature on the basis of the light emitted from the molten metal M having the floating material S on its surface and a cylindrical member 100 for transmitting the light emitted from the molten metal M to the measuring device 11. The cylindrical member 100 keeps one end immersed in the molten metal M and the other end connected to the measuring device 11 and has a reflecting surface 110a for reflecting the light emitted from the molten metal M to the inner surface side. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过提高用于测量其表面上具有浮动材料的熔融金属的熔融金属测量装置中的照明比来提高测量精度。解决方案：熔融金属测量装置10包括用于根据从具有浮动材料的熔融金属M发射的光进行熔融金属M的成分分析和温度测量的测量装置11 S的圆筒部件100以及将从熔融金属M发射的光透射到测量装置11的圆筒部件100.圆筒部件100将一端浸渍在熔融金属M中，另一端与测量装置11连接，用于将从熔融金属M发射的光反射到内表面的反射表面110a。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2007146218A Steel manufacturing process, computer program, computer-readable storage medium and apparatus 有权
标题翻译：钢铁制造工艺，计算机程序，计算机可读存储介质和设备
公开(公告)号：JP2007146218A
公开(公告)日：2007-06-14
申请号：JP2005341275
申请日：2005-11-25
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KITAGAWA ITSURO , OHASHI WATARU , HARADA TOSHIYA , SAITO TOSHIAKI , ETO ICHIRO , KITAGUCHI HISATSUGU
IPC分类号： C21C5/30 , C21C5/28 , C21C5/52 , C22B1/248
CPC分类号： Y02P10/214 , Y02P10/216 , Y02P10/234
摘要： PROBLEM TO BE SOLVED: To provide a steel manufacturing process using preheated scrap, which controls the fluctuation of heat balance in a smelting furnace, by controlling the fluctuation of a temperature of and reducing an oxidized amount of the preheated scrap. SOLUTION: The steel manufacturing process comprises the steps of; preheating the scrap containing iron; charging a raw steel material containing the preheated scrap and molten pig iron into the smelting furnace; and supplying an oxygen-containing gas into the smelting furnace to smelt the molten steel. The steel manufacturing process also comprises the steps of: using a scrap which has been worked so as to reduce its specific surface area, as a scrap to be preheated; calculating the heat balance between amounts of input heat and output heat from and to the smelting furnace on the basis of a pre-calculated target temperature of the molten steel; and adjusting the amounts of input heat and output heat from and to the smelting furnace so that they can be equal to each other, by adjusting at least any one of a blending ratio of the preheated scrap, a preheating temperature of the preheated scrap and a charge amount of an external coolant. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过控制预热废料的温度波动和减少氧化量，提供一种使用预热废料控制冶炼炉热平衡波动的钢制造工艺。解决方案：钢铁制造过程包括以下步骤：预热含铁废料; 将含有预热废料和熔融生铁的生钢材料装入冶炼炉; 并向冶炼炉供给含氧气体以熔炼钢水。钢的制造过程还包括以下步骤：使用已经加工以减小其比表面积的废料作为待预热的废料; 基于钢水的预先计算的目标温度计算来自熔化炉的输入热量和输出热量之间的热平衡; 并且通过调节预热的废料的共混比，预热的废料的预热温度和预热废料的预热温度中的至少一种来调节来自熔化炉的输入热量和输出热量，使得它们可以彼此相等外部冷却液的充电量。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2010031338A Method for operating converter 有权
标题翻译：操作转换器的方法
公开(公告)号：JP2010031338A
公开(公告)日：2010-02-12
申请号：JP2008196900
申请日：2008-07-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： NAITO KENICHIRO , ASAHARA AKIFUMI , KITAGAWA ITSURO , SHINNO SHUICHI , KUMAKURA MASANORI
IPC分类号： C21C5/30 , C21C5/35 , C21C5/46
摘要： PROBLEM TO BE SOLVED: To provide a maintenance management method for inexpensively maintaining improvement of unbalanced refractory wearing and the good metal sticking, in order to stably perform operations with high productivity in long service life of a converter, in a converter blowing. SOLUTION: A method for operating the converter includes using a plurality of lances which are different in at least one or more among inner-diameter, number, pitch circle diameter and spouting angle of the nozzle chip part of the lance used for top blowing, while exchanging them when blowing is performed in a top-blowing or top and bottom-blowing converter. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种维护管理方法，用于廉价地维持不平衡耐火材料磨损的改善和良好的金属粘附，以便在转炉吹制中稳定地实现转炉的使用寿命长的高生产率的操作。解决方案：一种用于操作转炉的方法，包括：使用上述喷枪的喷嘴芯片部分的内径，数量，节圆直径和喷射角度中的至少一个以上不同的多个喷枪在吹风或顶吹和底吹转炉中进行吹风的同时进行吹风。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2009132544A Method for producing slag 有权
标题翻译：生产滑石的方法
公开(公告)号：JP2009132544A
公开(公告)日：2009-06-18
申请号：JP2007307845
申请日：2007-11-28
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ASAHARA AKIFUMI , KITAGAWA ITSURO , NAITO KENICHIRO , MATSUO MITSUTAKA
IPC分类号： C04B5/00 , C21C1/02 , C21C5/28
摘要： PROBLEM TO BE SOLVED: To provide a method for separating and recovering slag having high content of a CP phase by phase-separating the CP phase and FeO phase in the slag and further separating and recovering the slag consisting essentially of remaining FeO phase as an iron source.
SOLUTION: The method for producing the slag includes: a first step of dephosphorizing molten iron to obtain slag in which the ratio of CaO to P
2 O
5 by concentration is expressed by CaO/P
2 O
5 ≤5; a second step of cooling the slag at ≤5 °C/min average cooling rate in a temperature ranging from a temperature at which the slag is started to be solidified to a temperature at which the whole slag is solidified to solidify and crystallizing 3CaO-P
2 O
5 phase and/or 4CaO-P
2 O
5 phase (CP phase) in the slag after the solidification; and a third step of separating the slag pulverized after the second step into the slag consisting essentially of the CP phase and the slag consisting essentially of FeO to recover the slag consisting essentially of the CP phase.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过在炉渣中分相CP相和FeO相来分离和回收具有高CP含量的炉渣的方法，并进一步分离和回收基本上由剩余的FeO相组成的炉渣作为铁源。解决方案：炉渣的制造方法包括：使铁水脱磷，得到CaO与P 2 O 5 的比例通过浓度由CaO / P 2 5 ≤5表示; 在从炉渣开始固化的温度到整个炉渣固化的温度下，以≤5℃/ min的平均冷却速率冷却炉渣的第二步骤，使3CaO-P 炉渣中的 2 5 相和/或4CaO-P 2 5 相（CP相）固化; 以及第三步骤，将在第二步骤中粉碎的炉渣分离成基本上由CP相组成的炉渣和基本上由FeO组成的炉渣，以回收基本上由CP相组成的炉渣。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008292170A Method and probe for laser induced fluorescence analysis 有权
标题翻译：激光诱导荧光分析的方法与探索
公开(公告)号：JP2008292170A
公开(公告)日：2008-12-04
申请号：JP2007135055
申请日：2007-05-22
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KONDO HIROYUKI , ASAHARA AKIFUMI , KITAGAWA ITSURO , MATSUO MITSUTAKA , WASHISU SATOSHI , FURUKAWA MIKITO
IPC分类号： G01N21/64 , G01N21/63
摘要： PROBLEM TO BE SOLVED: To provide a laser induced fluorescence analysis method and a laser induced fluorescence analysis probe for heightening the reproducibility of analysis values by correcting variations in the light intensity of laser induced fluorescence due to a selected pumped laser beam irradiating a sample.
SOLUTION: The laser induced fluorescence analysis probe is provided in the probe with a light intensity detector 1 for detecting the light intensity of laser induced fluorescence and a light intensity detector 2 for detecting the light intensity of part of a selected pumped laser beam. The light intensity F of fluorescence and the variable light intensity L' of the selective pumped laser beam are measured to correct the concentration of elements to be analyzed by a ratio of light intensity F/L' and determine the concentration in the laser induced fluorescence analysis method and the laser induced fluorescence analysis probe. It is possible to stably, continuously determine the concentration of components without being affected by energy variations of the selective pumped laser beam irradiating the sample.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供激光诱导荧光分析方法和激光诱导荧光分析探针，用于通过校正激光诱导荧光的光强度的变化，从而提高分析值的再现性样品。解决方案：激光诱导荧光分析探针在探针中提供有用于检测激光诱导荧光的光强度的光强度检测器1和用于检测所选择的泵浦激光束的一部分的光强度的光强度检测器2 。测量荧光的光强度F和选择性泵浦激光束的可变光强度L'，以通过光强度F / L'的比率校正要分析的元素的浓度，并确定激光诱导荧光分析中的浓度方法和激光诱导荧光分析探针。可以稳定地连续地确定组分的浓度，而不受受照射样品的选择性泵浦激光束的能量变化的影响。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2008280552A High-strength steel sheet, and welded structure 有权
标题翻译：高强度钢板和焊接结构
公开(公告)号：JP2008280552A
公开(公告)日：2008-11-20
申请号：JP2007123291
申请日：2007-05-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KITAGAWA ITSURO , OHASHI WATARU , TANAHASHI HIROYUKI
IPC分类号： C22C38/00 , B23K9/23 , B23K103/04 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To provide a high-strength steel sheet showing superior workability and softening resistance at a weld heat-affected zone in the case of a comparatively low heat-input amount, and to provide a welded structure using the steel sheet. SOLUTION: The high-strength steel sheet includes, by mass%, 0.02 to 0.08% C, 0.05 to 0.5% Si, 0.5 to 2.5% Mn, 0.005% or less S, 0.010% or less Al, 0.0020 to 0.0060% N, by mass ppm, one or both of 5 to 30 ppm Mg and 10 to 30 ppm Ca, by mass%, Ti in a range that satisfies a predetermined expression, further two or more elements of Nb, V, B and Ta in a range that satisfies another predetermined expression, and the balance Fe with other unavoidable elements. The weld heat-affected zone includes particles with an average particle size of r nm (where r≤1,000) in an amount of ρ' pieces/cm 3 by number density, which is calculated according to a predetermined expression. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供在热输入量相对较低的情况下在焊接热影响区显示优异的加工性和耐软化性的高强度钢板，并且提供使用钢的焊接结构片。解决方案：高强度钢板以质量％计含有0.02〜0.08％的C，0.05〜0.5％的Si，0.5〜2.5％的Mn，0.005％以下的S，0.010％以下的Al，0.0020〜0.0060 ％N，质量ppm，满足预定表达式的范围内的5〜30ppm的Mg和10〜30ppm的Ca，质量％，Ti中的一种或两种，还有两种以上的Nb，V，B和Ta的元素在满足另一预定表达式的范围内，余量为Fe与其它不可避免的元素。焊接热影响区域包括平均粒径为r nm（r≤1,000）的颗粒，其数量密度按照ρ'/ cm 3 / SP>的数量，根据预定的表达。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008266751A Molten steel refining method 有权
标题翻译：铸钢精炼方法
公开(公告)号：JP2008266751A
公开(公告)日：2008-11-06
申请号：JP2007114064
申请日：2007-04-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KITAGAWA ITSURO , KONDO HIROYUKI , MATSUO MITSUTAKA , ASAHARA AKIFUMI , WASHISU SATOSHI , FURUKAWA MIKITO
IPC分类号： C21C7/00 , C21C7/068 , C21C7/10 , G01N21/64 , G01N21/71
摘要： PROBLEM TO BE SOLVED: To provide a molten steel refining method for use in a vacuum-decarburizing refining of extra-low carbon steel by using a real-time monitoring technique, by which the extra-low carbon steel can be highly accurately and efficiently obtained by increasing content control accuracy for the target carbon concentration and shortening treating time while restraining a probe and gas cost.
SOLUTION: The method is provided for carburizing the molten steel to the extra-low carbon range of ≤100 ppm while continuously monitoring the carbon concentration in the molten steel by a vacuum decarburizing treatment, the molten steel refining method has a process for determining the continuous monitoring starting time of the carbon concentration in the molten steel and a process for determining the completing time of the decarburizing treatment by performing the continuous monitoring of the carbon concentration in the molten steel from the starting time.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：为了提供一种用于超低碳钢真空脱碳精炼的钢水精炼方法，通过使用实时监测技术，超低碳钢可以高精度地并且通过提高目标碳浓度的含量控制精度和缩短处理时间而有效地获得，同时抑制探针和气体成本。解决方案：该方法用于将钢水渗碳至≤100ppm的超低碳范围，同时通过真空脱碳处理连续监测钢水中的碳浓度，该钢水精炼方法具有确定钢水中碳浓度的连续监测开始时间，以及从开始时间开始连续监测钢水中的碳浓度，确定脱碳处理完成时间的处理。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2010018827A Vessel for melting and refining of steelmaking slag 有权
标题翻译：用于冶炼和精炼钢管的船舶
公开(公告)号：JP2010018827A
公开(公告)日：2010-01-28
申请号：JP2008179059
申请日：2008-07-09
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： HIRATA HIROSHI , NAKAJIMA JUNJI , KITAGAWA ITSURO , ASAHARA AKIFUMI
IPC分类号： C21C1/02 , C04B5/00 , C21C5/28 , F27D15/00
摘要： PROBLEM TO BE SOLVED: To restrain production of CO gas caused by the reaction of carbon in granulated iron, to improve strength of slag after melting and refining processing, to reduce unit consumption of fuel in melting and refining processing and to increase the recovery quantity of metals, by devising the structure of a vessel for melting and refining of steelmaking slag used as a reaction vessel, in the melting and refining processing of the steelmaking slag. SOLUTION: The bottom part in the vessel 10 for melting and refining of the steelmaking slag is provided with at least one or more of inclined surfaces 11 for settling the granulated iron M dispersed in the steelmaking slag S and a granulated iron storing part 13 which is disposed at least at one or more positions on the low position side of the inclined surfaces 11 and stores the settled granular iron M. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题为了抑制由造粒铁中碳的反应引起的CO气体的生成，为了提高熔融精炼加工后的渣的强度，可以降低熔融精炼加工中的燃料的单位消耗量，在炼钢渣的熔化和精炼加工中，通过设计用于熔炼和精炼作为反应容器的炼钢渣的结构的金属的回收量。解决方案：用于熔炼和精炼炼钢渣的容器10的底部设置有至少一个或多个倾斜表面11，用于沉淀分散在炼钢渣S中的粒状铁M和颗粒铁储存部分至少设置在倾斜面11的低位侧的一个或多个位置，并存放沉降的粒状铁M.版权所有（C）2010，JPO＆INPIT

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