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1. 发明专利

JP2010095785A 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：JP2010095785A
公开(公告)日：2010-04-30
申请号：JP2008270098
申请日：2008-10-20
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： UEKI TOSHIYUKI
IPC分类号： C21C1/02 , C21C5/36
摘要： PROBLEM TO BE SOLVED: To provide a method for dephosphorizing molten iron by which low-phosphorus steel is produced without using fluorite. SOLUTION: The method includes removing phosphorus from molten iron by using a top and bottom-blown converter and feeding an oxygen source and a CaO source without using fluorite which is a slag formation accelerator. Under the condition that the ratio by mass% of CaO to SiO 2 obtained by analyzing the slag collected from the converter after the completion of dephosphorization blowing is 1.8 or more and 2.4 or less, the ratio of the firing point area formed on a molten iron bath surface by the oxygen blown from a top-blown lance to the molten iron bath surface area in the converter is set to 0.15 or more. It is preferable to use a powder CaO source having a particle size adjusted to 3 mm or less as the CaO source and blow it to the molten iron in the furnace from the top-blown lance. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种在不使用萤石的情况下生产低磷钢的铁水脱磷方法。解决方案：该方法包括通过使用顶吹转炉和底吹转炉从铁水中除去磷，并且不使用作为熔渣形成促进剂的萤石来供给氧源和CaO源。在脱磷完成后分析从转炉收集的炉渣获得的CaO与SiO 2 的质量％的比例为1.8以上且2.4以下的条件下，通过从顶吹喷枪吹出的氧在转炉中的铁水浴表面积在铁水浴表面上形成的点区域设定为0.15以上。优选使用粒径调整为3mm以下的粉末CaO源作为CaO源，并将其从顶吹喷枪吹入炉中的铁水。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2008101259A METHOD FOR PRODUCING MOLTEN STEEL CONTAINING Zr IN ADDITION TO Cr, AND METHOD FOR INHIBITING CLOGGING OF IMMERSED NOZZLE 审中-公开
标题翻译：用于生产含有添加到Zr中的Zr的钢的方法以及用于抑制静止喷嘴的分离的方法
公开(公告)号：JP2008101259A
公开(公告)日：2008-05-01
申请号：JP2006286588
申请日：2006-10-20
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： UEKI TOSHIYUKI
IPC分类号： C21C7/00 , B22D1/00 , B22D11/00 , B22D11/108 , B22D11/11 , B22D11/117 , C21C7/04 , C21C7/072 , C22C38/00 , C22C38/28
摘要： PROBLEM TO BE SOLVED: To continuously cast steel containing Zr in addition to Cr with high efficiency.
SOLUTION: This method for producing the molten steel containing Zr in addition to Cr, which contains 0.1 to 1.5 mass% Zr and 8 mass% or more Cr, comprises the steps of: adjusting the components in a process of reducing chrome oxide in a smelting furnace so that the molten steel after having been reduction-treated can satisfy [Al]≥0.15 mass% or [Si]≥0.8 mass%; tapping out the molten steel to a ladle; adding CaSi to the molten steel in the ladle while bubbling a gas with the use of an immersion lance made from a refractory; and then charging FeZr into the molten steel. Then, the molten steel containing Zr in addition to Cr can be inexpensively produced with high productivity, without discontinuing casting due to clogging in a nozzle during continuous casting and without deteriorating the cleanliness of the molten steel.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：待解决的问题：为了连续地以高效率对含有Zr的Zr进行连续铸造。解决方案：含有0.1〜1.5质量％的Zr和8质量％以上的Cr的Cr以外含有Zr的钢水的制造方法包括以下步骤：在还原氧化铬的工序中调整成分在熔融炉中，经还原处理后的钢水可以满足[Al]≥0.15质量％或[Si]≥0.8质量％将钢水拔出钢包; 在钢包中的钢水中加入CaSi，同时使用由耐火材料制成的浸渍喷枪鼓泡气体; 然后将FeZr装入钢水中。然后，除了Cr之外，含有Zr的钢水可以以高生产率低成本地生产，而在连续铸造期间由于喷嘴堵塞而不中断铸造，并且不会降低钢水的清洁度。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2005082826A Method and apparatus for raising molten steel temperature 有权
标题翻译：提高钢铁温度的方法和装置
公开(公告)号：JP2005082826A
公开(公告)日：2005-03-31
申请号：JP2003313495
申请日：2003-09-05
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： UEKI TOSHIYUKI , FUJIWARA KIYOTO
IPC分类号： C21C7/10 , C21C7/072
摘要： PROBLEM TO BE SOLVED: To provide a method for raising molten steel temperature by which the erosion of a side wall refractory of the vacuum vessel is suppressed in vacuum refining conducting top-blowing of oxygen gas into a vacuum vessel in an RH vacuum degassing apparatus.
SOLUTION: When oxygen gas top-blowing is conducted from a top-blowing lance, the central position of the firing point of oxygen is positioned at the riser tube side in the vacuum vessel. The central position of the firing point in the oxygen is preferably located at 0.5 to 0.9 in terms of the value of the ratio (r/rO) of the distance r from the side wall at the riser tube side of the vacuum vessel to the inner radius rO of the vacuum vessel. Further, as the top-blowing lance, a lance having a lance hole with a downward angle of 3 to 10° to the vertical direction at the tip part of the lance nozzle can be used.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种提高钢水温度的方法，通过该方法，在真空精炼中，真空精炼中，在RH真空中将氧气顶吹到真空容器中，可以抑制真空容器的侧壁耐火材料的侵蚀脱气装置解决方案：当从顶吹喷枪进行氧气顶吹时，氧气的点的中心位置位于真空容器中的提升管侧。燃烧点在氧中的中心位置优选以从真空容器的提升管侧的侧壁到内部的距离r的比值（r / r0）的值为0.5至0.9，真空容器的半径r0。此外，作为顶吹喷枪，可以使用在喷枪喷嘴的前端部具有向垂直方向下降3〜10度的喷枪孔的喷枪。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2008223047A Method for presuming molten steel component 有权
标题翻译：铸钢件组合方法
公开(公告)号：JP2008223047A
公开(公告)日：2008-09-25
申请号：JP2007058701
申请日：2007-03-08
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KATO AKIRA , TORII KOICHI , UEKI TOSHIYUKI
IPC分类号： C21C5/30 , C21C5/46 , G01N27/411 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a method for accurately presuming P concentration in molten steel, even in the case of being carbon concentration in the molten steel in the wide range, based on oxygen concentration in slag. SOLUTION: When decarburizing and dephosphorizing blowing for refining is performed till becoming ≤1.0 mass% carbon concentration and ≤0.030 mass% phosphorus concentration in the molten steel, the dephosphorized molten iron is used and the quantity of carry-out slag in before process is desirably set to ≤3 kg/t used molten iron, and the phosphorus concentration in the molten steel at the completing time of blowing is presumed by using the oxygen concentration in the slag. At that time, desirably, as the carbon concentration in the molten steel at the completing time of the blowing turns into high carbon concentration, the oxygen concentration in the slag enlarges the contribution of the influence affected to estimating value of the phosphorus concentration in molten steel. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种准确地推测钢水中的P浓度的方法，即使在基于炉渣中的氧浓度的大范围内的钢水中的碳浓度的情况下也是如此。解决方案：当进行精炼用脱碳脱磷，直至钢水中≤1.0质量％的碳浓度和≤0.030质量％的磷浓度为止时，使用脱磷酸铁和在前的排渣量处理优选设定为≤3kg/ t的铁水，通过使用炉渣中的氧浓度推定在吹制完成时的钢水中的磷浓度。那时，理想的是，随着吹炼完成时钢水中的碳浓度变成高碳浓度，炉渣中的氧浓度会增加对钢水中磷浓度估计值的影响的影响。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007046082A Method for charging scrap into converter 审中-公开
标题翻译：将SCRAP充入转换器的方法
公开(公告)号：JP2007046082A
公开(公告)日：2007-02-22
申请号：JP2005229615
申请日：2005-08-08
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： UEKI TOSHIYUKI
IPC分类号： C21C5/28 , C21C5/44
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To surely relax the shock from scrap in every time when the scrap is charged into a converter. SOLUTION: In the method for charging the scrap into the converter, previous to the charge of the scrap, auxiliary raw material used as flux is charged. In this way, eroding speed of a brick at the charging side of the scrap is reduced and the service life of the furnace body is improved and the improvement of the refractory cost is obtained. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：每次废料装入转炉时，都要放心废料的冲击。
解决方案：在将废料装入转炉的方法中，在废料装料之前，用作助焊剂的辅助原料进行充电。以这种方式，废料的充电侧的砖的侵蚀速度降低，并且炉体的使用寿命得到改善，并且获得耐火材料成本的提高。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2005214548A Refractory lining structure of converter and converter operating method 审中-公开
$Refractory lining structure of converter and converter operating method$
标题翻译：变频器和变频器工作方式的耐火衬里结构
公开(公告)号：JP2005214548A
公开(公告)日：2005-08-11
申请号：JP2004023849
申请日：2004-01-30
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KUBO YOSHIKAZU , UEKI TOSHIYUKI
IPC分类号： C04B35/043 , C21C5/32 , C21C5/44 , F27D1/04
摘要： PROBLEM TO BE SOLVED: To inhibit the erosion of a part where molten steel and slug are not kept into contact with each other, except for a steel bath part, even when an oxygen sending speed is increased and a strong oxidation atmosphere is formed in the converter. SOLUTION: Magnesia carbon bricks 2a having a content of C of 15 mass % or more are lined on a molten steel contact part 1a of the converter 1, magnesia carbon bricks 2b of a content of C of more than 11 mass % and less than 15 mass % are lined on a molten steel non-contact part 1b. The erosion of magnesia carbon bricks lined on the non-contact part with the molten steel can be effectively inhibited even in high-speed blowing under conditions that the oxygen sending speed is 3 Nm 3 /min steel ton or more, and a slug volume is 50 kg/ton or less. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：除了钢浴部分之外，为了抑制钢水和块状物彼此不接触的部分的侵蚀，即使当送氧速度增加并且强氧化气氛是在转换器中形成。解决方案：含量C为15质量％以上的氧化镁碳砖2a排列在转炉1的钢水接触部分1a上，C含量大于11质量％的氧化镁碳砖2b和小于15质量％的衬里衬在钢水非接触部分1b上。即使在送风速度为3 Nm 3 /分钟/分钟钢吨或以下的条件下即使在高速吹风中也能有效地抑制排出在与钢水接触的部分上的氧化镁碳砖的侵蚀更多的是，一个团块的体积是50公斤/吨或更少。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2010001536A 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：JP2010001536A
公开(公告)日：2010-01-07
申请号：JP2008161936
申请日：2008-06-20
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： UEKI TOSHIYUKI , KANBAYASHI TORU
IPC分类号： C21C1/02 , C21C5/35 , C21C5/36
摘要： PROBLEM TO BE SOLVED: To efficiently produce low-P steel without using a fluorite and without lowering the productivity. SOLUTION: A method for removing phosphorus from molten iron by using a top and bottom blown converter without using the fluorite is disclosed. A refining agent containing calcium-ferrite is used at least partly so that an actual basicity (a ratio between CaO mass% and SiO 2 mass% in slag) obtained by analyzing the slag after completing the dephosphorization blowing, becomes 1.8-2.6. The low P steel can be efficiently produced without using the fluorite and without lowering the productivity by using at least partly the refining agent containing calcium-ferrite so that the actual basicity becomes 1.8-2.6. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在不使用萤石的情况下有效地生产低P钢并且不降低生产率。解决方案：公开了一种通过使用不使用萤石的顶吹和底吹转炉从铁水中除去磷的方法。使用含有铁酸钙的精制剂至少部分地使用通过在完成脱磷吹塑之后分析渣而获得的实际碱度（炉渣中CaO质量％与SiO 2之间的比例 2 质量％），变成1.8-2.6。可以在不使用萤石的情况下有效地制造低P钢，并且至少部分地使用含有铁酸钙的精制剂，使得实际碱度变为1.8-2.6，而不降低生产率。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2009249723A 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：JP2009249723A
公开(公告)日：2009-10-29
申请号：JP2008102523
申请日：2008-04-10
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： UEKI TOSHIYUKI , KANBAYASHI TORU , HIRANO SHINICHIRO
IPC分类号： C21C5/36 , C21C1/02
摘要： PROBLEM TO BE SOLVED: To provide a molten iron-dephosphorizing method for efficiently producing low-phosphorus steel without using fluorite. SOLUTION: When dephosphorization-blowing is performed with oxygen source and refining agent and without using fluorite as a slag formation accelerator by using a top-bottom blowing converter, a slag composition is adjusted so that the slag basicity (CaO/SiO 2 ) is 1.80-2.40, (MnO) is 10.0-15.0 mass% and (T.Fe) is equal to or more than 8.0 mass% when finishing the dephosphorization-blowing. The dephosphorization-blowing may be performed using 2,600-4,000 watt/T bottom blowing stirring power and the refining agent may contain 2-4 kg/T Mn ore and ≥4 kg/T iron ore, and the refining agent may contain powdery CaO the grain diameter of which is adjusted to ≤3 mm grain diameter. The phosphrization-blowing may be performed while the powdery CaO is injected onto the molten iron in the furnace from the top-blowing lance. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：待解决的问题：提供一种不使用萤石来有效生产低磷钢的铁水脱磷方法。解决方案：当用氧源和精炼剂进行脱磷吹制，并且通过使用顶部底吹式转炉不使用萤石作为渣形成促进剂时，调整炉渣组成，使炉渣碱度（CaO / SiO < SB> 2 ）为1.80-2.40，（MnO）为10.0-15.0质量％，（T.Fe）为8.0质量％以上时进行脱磷吹制。脱磷吹制可以使用2,600-4,000瓦/吨底吹搅拌动力进行，精炼剂可以含有2-4公斤/吨锰矿和≥4千克/吨铁矿石，精炼剂可含有粉末状CaO 其粒径调整至≤3mm晶粒直径。可以在将粉末状CaO从顶吹喷枪注入炉中的铁水的同时进行磷酸化吹制。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2009091612A Method and apparatus for raising temperature of molten steel containing aluminum 有权
标题翻译：用于提高含铝钢的温度的方法和装置
公开(公告)号：JP2009091612A
公开(公告)日：2009-04-30
申请号：JP2007262301
申请日：2007-10-05
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KANBAYASHI TORU , TORII KOICHI , UEKI TOSHIYUKI , KATO AKIRA
IPC分类号： C21C7/10 , C21C7/072
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for raising the temperature of molten steel with which in a secondary refining using a vacuum-degassing apparatus, when the molten steel containing Al is raised to the temperature, uniform melting-loss of a brick can be made to be obtained.
SOLUTION: A top-blowing oxygen lance 1 at 3-10° angle to form the lance center axis and the center axis of a lance hole, and the temperature raising apparatus provided with a rotating mechanism for rotating this top-blowing oxygen lance around the center of the vertical direction as the axis, are used, and while rotating the above top-blowing oxygen lance around the center in the vertical direction as the center, the temperature of the molten steel containing Al, is raised by oxidizing Al in the molten steel 3. The melting-loss balance of side-wall brick can be adjusted, and the thickness of the brick can effectively be used.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种提高钢水温度的方法和装置，在使用真空脱气装置的二次精炼中，当含有Al的钢水升高到该温度时，可以获得砖的损失。解决方案：顶吹氧枪1以3-10°的角度形成喷枪中心轴和喷枪孔的中心轴线，升温装置设有旋转机构，用于旋转该顶吹氧气使用沿垂直方向的中心作为轴的喷枪，并且当沿着垂直方向的中心围绕中心旋转上述顶吹氧枪作为中心时，含有Al的钢水的温度通过氧化Al而升高可以调节侧壁砖的熔融平衡，可以有效地利用砖的厚度。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2006241519A Method for manufacturing steel sheet for magnetic shielding material 审中-公开
标题翻译：用于制造磁屏蔽材料的钢板的方法
公开(公告)号：JP2006241519A
公开(公告)日：2006-09-14
申请号：JP2005058933
申请日：2005-03-03
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： UEKI TOSHIYUKI
IPC分类号： C21C7/00 , C21C7/06 , C21C7/10 , C22C38/00 , C22C38/06 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To obtain necessary magnetic shielding characteristics and to improve productivity by enabling continuous casting.
SOLUTION: The manufacturing method comprises manufacturing a steel sheet for a magnetic shielding material having a chemical composition of steel containing, by mass%, ≤0.005% [C],
摘要翻译：要解决的问题：通过连续铸造获得必要的磁屏蔽特性和提高生产率。解决方案：制造方法包括制造具有质量％≤0.005％[℃]，<0.05％[Si]，0.10〜0.50％[Mn]的钢的化学组成的磁屏蔽材料用钢板 ]，≤0.020％[P]，≤0.010％[S]，≤0.003％溶胶[Al]，≤0.003％[N]，≤0.018％T. [O]，余量为Fe和不可避免的杂质，其中 RH处理后的溶解氧浓度限定为≤60ppm，优选将RH处理后的溶解氧浓度限定为≤40ppm。结果，可以制造具有优异的磁屏蔽特性，可加工性和变黑处理性的磁屏蔽材料用钢板。如果将RH处理后的溶解氧浓度限定为≤40ppm，则生产率的提高也成为可能。版权所有（C）2006，JPO＆NCIPI

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