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1. 发明专利

JP2012193456A Desulfurizing agent and method for desulfurizing molten iron 有权
标题翻译：脱硫剂和用于脱硫铁的方法
公开(公告)号：JP2012193456A
公开(公告)日：2012-10-11
申请号：JP2012135332
申请日：2012-06-15
申请人： Jfe Steel Corp , Jfe Mineral Co Ltd , Jfeスチール株式会社 , Jfeミネラル株式会社
发明人： HINO YUTA , NABESHIMA SEIJI , KUSAMA TOMONORI , YAMAGUCHI ATSUSHI
IPC分类号： C21C1/02 , C21B3/04 , C21C7/064
CPC分类号： Y02W30/542
摘要： PROBLEM TO BE SOLVED: To provide a desulfurizing agent which can be produced comparatively simply and, can desulfurize molten iron at high efficiency even without containing fluorine.SOLUTION: The desulfurizing agent is produced by mixing a powder lime made mainly of CaO with a solid powder material that is obtained by solidifying a slag produced as a by-product when producing molten iron in a blast furnace and pulverizing it thereafter. In this case, the mixing mass ratio of the solid powder material to the lime (blending quantity of solid powder material (mass%)/blending quantity of lime (mass%)) is ≥0.05 and ≤1.0, the average grain size of the solid powder material is less than 15 μm, and the basicity of the desulfurizing agent ((mass% CaO)/(mass% SiO)) is 3.5 or more, thereby improving further desulfurization efficiency.
摘要翻译：要解决的问题：提供一种相对简单的生产的脱硫剂，即使不含氟也能以高效率对铁水进行脱硫。解决方案：脱硫剂通过将主要由CaO制成的粉末石灰与通过在高炉中制造铁水时将作为副产物生成的炉渣固化而获得的固体粉末材料混合并将其粉碎来制备。在这种情况下，固体粉末材料与石灰的混合质量比（固体粉末材料的混合量（质量％）/石灰混合量（质量％））为≥0.05和≤1.0，平均粒径为固体粉末材料小于15μm，脱硫剂的碱度（（质量％CaO）/（质量％SiO 2 ））为3.5以上，进一步提高脱硫效率。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2009249697A Desulfurizing agent and method for desulphurizing molten iron 审中-公开
标题翻译：脱硫剂和用于硫化铁的方法
公开(公告)号：JP2009249697A
公开(公告)日：2009-10-29
申请号：JP2008100408
申请日：2008-04-08
申请人： Jfe Mineral Co Ltd , Jfe Steel Corp , Jfeスチール株式会社 , Jfeミネラル株式会社
发明人： IWAASA MAKI , HINO YUTA , OYAMA TOMOJI , NABESHIMA SEIJI , SUZUKI TAKESHI , KUSAMA TOMONORI
IPC分类号： C21C1/02 , C21C7/04 , C21C7/064 , C21C7/072 , C21C7/076
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a desulfurizing agent having CaO as the main component with which the agent can be manufactured with comparatively simple method and even in the case of being the molten iron at the low temperature of ≤1300°C, the desulfurization can be highly efficiently performed. SOLUTION: The desulfurizing agent contains CaO-containing powdery material containing CaO as the main component and CaF 2 , and a solid powdery material which mainly contains Al 2 O 3 and SiO 2 , and solidifies after pre-melting. In this case, it is desirable to use ≥5 mass% to ≤[100-10X]mass% [wherein X is CaF 2 content (mass%) of in the CaO-containing powdery material] of the blending ratio of the above solid powdery material or to use a blast furnace slag generated as a by-product when the molten iron is produced in the blast furnace as the solid powdery material. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种以相对简单的方法制备具有CaO作为主要成分的脱硫剂，即使在低于≤1300℃的铁水的情况下，可以高效率地进行脱硫。解决方案：脱硫剂含有含有CaO作为主要成分的CaO的粉末状材料，CaF 2 ，以及主要含有Al 2 O 3的固体粉末材料， SB> 3 和SiO 2 ，并在预熔化后固化。在这种情况下，优选使用≥5质量％〜≤[100-10×]质量％[其中，X是含CaO粉末材料中的CaF 2 含量（质量％）] 上述固体粉末材料的混合比例，或者当在高炉中生产作为固体粉末材料的铁水时，使用作为副产物产生的高炉矿渣。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2008231495A Method for manufacturing desulfurizing agent 有权
标题翻译：制造脱硫剂的方法
公开(公告)号：JP2008231495A
公开(公告)日：2008-10-02
申请号：JP2007071930
申请日：2007-03-20
申请人： Jfe Mineral Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , Jfeミネラル株式会社
发明人： KUSAMA TOMONORI , YAMAGUCHI ATSUSHI , HINO YUTA , NABESHIMA SEIJI
IPC分类号： C21C1/02 , C21C7/064 , C21C7/076
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a desufurizing agent which can be comparatively easily manufactured, which enables desulfurization of molten iron with high efficiency, even when no fluorine is contained, and does not cause environmental damage. SOLUTION: In the method for manufacturing the desulfurizing agent which contains powdery lime having CaO as a main component and a powdery material after being melted which mainly contains Al 2 O 3 and SiO 2 and is solidified after being melted in advance, the above powdery lime and the above powdery material after being melted are mixed. The above mixing treatment is performed by using a high speed stirring and mixing machine incorporating stirring blades, or can be performed by simultaneously pulverizing the above lime and the above powdery material after being melted. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决问题的方案：即使不含氟，也可以提供一种可以相对容易地制造能够高效率地进行铁水脱硫的脱硫剂的制造方法，不会造成环境破坏。解决方案：在含有以CaO为主要成分的粉状石灰和熔融后主要含有Al O 3 和SiO 2 ，并在预先熔融之后固化，将上述粉状石灰和熔融后的上述粉末材料混合。上述混合处理通过使用包含搅拌叶片的高速搅拌和混合机进行，或者可以在熔融之后同时粉碎上述石灰和上述粉末状材料。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008031537A CaO-BASED DESULFURIZING AGENT AND METHOD FOR DESULFURIZING MOLTEN IRON 有权
标题翻译：基于CaO的脱硫剂和用于脱硫铁的方法
公开(公告)号：JP2008031537A
公开(公告)日：2008-02-14
申请号：JP2006208042
申请日：2006-07-31
申请人： Jfe Mineral Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , Jfeミネラル株式会社
发明人： HINO YUTA , NAKAI YOSHIE , SUMI IKUHIRO , NABESHIMA SEIJI , KUSAMA TOMONORI , NAKAYAMA NOBUTAKA , YAMAGUCHI ATSUSHI
IPC分类号： C21C1/02 , C21C7/04 , C21C7/064 , C21C7/072 , C21C7/076
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a CaO-based desulfurizing agent which can be inexpensively manufactured and capable of high efficient desulfurizing treatment, and having improved wettability with molten iron. SOLUTION: In the CaO-based desulfurizing agent having the CaO particles as the main component, carbonaceous particles having the carbon as the main component and ≤5 μm average particle diameter are mixed with the above CaO particles. The desulfurizing efficiency can further be improved by using ≤1 μm average particle diameter carbonaceous particles and ≥10 μm average particle diameter CaO particles and ≥1 mass% blending ratio of the carbonaceous particles. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种可廉价制造且能够高效脱硫处理并且具有改善的铁水润湿性的CaO系脱硫剂。解决方案：以CaO粒子为主要成分的CaO系脱硫剂中，以碳为主成分且≤5μm平均粒径的碳粒子与上述CaO粒子混合。通过使用≤1μm平均粒径碳质颗粒和≥10μm平均粒径的CaO颗粒和≥1质量％的碳质颗粒的混合比，可以进一步提高脱硫效率。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2008231494A Desulfurizing agent and method for desulfurizing molten iron 有权
标题翻译：脱硫剂和用于脱硫铁的方法
公开(公告)号：JP2008231494A
公开(公告)日：2008-10-02
申请号：JP2007071929
申请日：2007-03-20
申请人： Jfe Mineral Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , Jfeミネラル株式会社
发明人： HINO YUTA , NABESHIMA SEIJI , KUSAMA TOMONORI , YAMAGUCHI ATSUSHI
IPC分类号： C21C1/02 , C21C7/04 , C21C7/06 , C21C7/064 , C21C7/072 , C21C7/076
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a desufurizing agent which can be produced comparatively simply and, can desulfurize molten iron at high efficiency, even without containing fluorine. SOLUTION: The desulfurizing agent for solving the above problem contains powdery lime having CaO as the main component and a solid-powdery material which mainly contains Al 2 O 3 and SiO 2 and solidifies after previously melting. In this case, the desulfurized efficiency is further improved by making the blending mass ratio of the solid powdery material and the lime (the blending amount of the solid powdery material (mass%)/ the blending amount of the lime) to be 0.05-1.0, and the average grain diameter of the solid powdery material to be ≤15 μm and the basicity (mass% CaO/mass% SiO 2 ) of the desulfurizing agent to be ≥3.5. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：为了提供可以相对简单地制备的脱硫剂，并且即使不含氟也可以高效率地脱硫铁水。解决方案：用于解决上述问题的脱硫剂包含以CaO为主要成分的粉状石灰和主要含有Al 2 3 的固体粉末材料， SiO 2 ，并在预先熔融后固化。在这种情况下，通过使固体粉末材料和石灰的混合质量比（固体粉末材料的配合量（质量％）/石灰的配合量）为0.05〜1.0，进一步提高脱硫效率，固体粉末材料的平均粒径≤15μm，脱硫剂的碱度（质量％CaO /质量％SiO 2 ）≥3.5。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008031538A METHOD FOR MANUFACTURING CaO-BASED DESULFURIZING AGENT 有权
标题翻译：制造CaO基脱硫剂的方法
公开(公告)号：JP2008031538A
公开(公告)日：2008-02-14
申请号：JP2006208043
申请日：2006-07-31
申请人： Jfe Mineral Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , Jfeミネラル株式会社
发明人： KUSAMA TOMONORI , NAKAYAMA NOBUTAKA , YAMAGUCHI ATSUSHI , HINO YUTA , NAKAI YOSHIE , SUMI IKUHIRO , NABESHIMA SEIJI
IPC分类号： C21C1/02 , C21C7/04 , C21C7/06 , C21C7/064 , C21C7/076
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a method for simply and stably manufacturing CaO-based desulfurizing agent at a low cost which can obtain the high efficient desulfurizing treatment and improves the wettability with molten iron. SOLUTION: In the method for manufacturing the CaO-based desulfurizing agent having CaO particles as the main component and carbonaceous particles adhering to the surfaces of the CaO particles; the CaO particles are mixed with the carbonaceous particles having carbon as a main component and ≤5μm average particle diameter, and the carbonaceous particles are made to adhere to the surface of the CaO particles. In this case, the average particle diameter of the carbonaceous particles is ≤1μm and a brightness index L* value is ≤30 with a calorimeter of the CaO particles after mixing the CaO particles with the carbonaceous particles and then, the CaO-based desulfurizing agent having higher efficiency can stably be manufactured. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够以低成本简单稳定地制造CaO类脱硫剂的方法，其可以获得高效脱硫处理并提高铁水的润湿性。解决方案：在以CaO粒子为主要成分的CaO类脱硫剂的制造方法和附着在CaO粒子表面的碳质粒子的制造方法中，将CaO粒子与以碳为主成分且≤5μm平均粒径的碳质粒子混合，使碳质粒子附着于CaO粒子的表面。在这种情况下，CaO粒子与碳质粒子混合后的CaO粒子的量热计，碳粒子的平均粒径≤1μm，亮度指数L *值≤30，然后，CaO系脱硫剂可以稳定地制造具有更高效率的。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2015051442A 連続鋳造用鋳型及び鋼の連続鋳造方法有权
标题翻译：连续铸造模具和连续铸钢方法
公开(公告)号：JP2015051442A
公开(公告)日：2015-03-19
申请号：JP2013184530
申请日：2013-09-06
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： IWATA NAOMICHI , NABESHIMA SEIJI , ARAMAKI NORICHIKA , TSUTSUMI KOICHI , MIKI YUJI
IPC分类号： B22D11/04 , B22D11/059
摘要：【課題】凝固初期の凝固シェルの不均一冷却、並びに、包晶反応を伴う中炭素鋼でのδ鉄からγ鉄への変態に起因する凝固シェル厚みの不均一による表面割れを防止することのできる連続鋳造用鋳型を提供する。【解決手段】本発明の連続鋳造用鋳型1は、メニスカスよりも上方の任意の位置から、下記の(1)式を満足する距離L0以上メニスカスよりも下方の位置までの内壁面の範囲に、銅の熱伝導率に対してその熱伝導率を20%以下とするセラミックスが円形凹溝2の内部に充填されて形成された、直径2〜10mmの複数個の低熱伝導セラミックス充填部3をそれぞれ独立して有する。但し、(1)式において、L0は、メニスカスからの距離(mm)、Vcは、定常鋳造時の鋳片引き抜き速度(m/min)である。L0=2?Vc?1000/60 …(1)【選択図】図2
摘要翻译：要解决的问题：提供一种连续铸造模具，其能够防止由初始凝固阶段的凝固壳体的冷却不均匀引起的凝固壳体的表面裂纹，以及从中碳的δ-铁转变为γ铁的不均匀厚度伴随包晶反应的钢。解决方案：连续铸造模具1包括多个低导热陶瓷填充部分3，每个低导热陶瓷填充部分3的直径为2-10mm，并且通过填充圆形凹槽的内部彼此独立地形成 2具有相对于铜的20％或更少导热率的陶瓷，在内壁表面上的从弯月面之上的可选位置到位于弯月面下方一个位置的区域内，更满足下面的表达式（1）。表达式（1）由L = 2×Vc×1000/60表示，条件是在稳定铸造时间下，Lis与弯月面的距离（mm）和Vc是铸造件拔出速度（m / min）。

8. 发明专利

JP2014208378A 鋼の連続鋳造方法有权
标题翻译：连续铸钢的方法
公开(公告)号：JP2014208378A
公开(公告)日：2014-11-06
申请号：JP2014055517
申请日：2014-03-18
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： TSUTSUMI KOICHI , MURAI TAKESHI , NABESHIMA SEIJI , MAENO MITSUHIKO , NISHIHARA KOSUKE , MIKI YUJI
IPC分类号： B22D11/124 , B22D11/00 , B22D11/22 , C22C38/00 , C22C38/06 , C22C38/58
CPC分类号： B22D11/00 , B22D11/12 , B22D11/22 , C22C38/00 , C22C38/06 , C22C38/58
摘要：【課題】鋼の連続鋳造において、特に鋳片引き抜き後の曲げ矯正点付近での表面割れの発生を防止するための手法について提案する。【解決手段】溶鋼を鋳型に装入し、該鋳型から直接鋳片を引き抜く連続鋳造方法であって、前記鋳型の直下から曲げ矯正点に至る前において、前記鋳片の表層部を、前記溶鋼のAr3点より低くかつAr1点より高い温度域まで冷却してAc1点以上の温度に復熱させることを2回以上繰り返したのち、前記溶鋼のAc3点以上の温度まで復熱させる。【選択図】図2
摘要翻译：要解决的问题：提供一种特别用于在连续铸造钢中拉制铸坯后在弯曲校正点附近产生表面裂纹的方法。解决方案：在加入钢水的连续铸造方法中在铸造板坯从铸模的正下方到达弯曲修正点之前，将铸造模具直接从铸模中拉出，将铸造板坯的表面层部分冷却到温度范围的循环低于Arpoint并且高于钢水的Ar点，并且将铸造板坯的热量恢复到等于或高于Arpoint的温度重复两次或更多次，然后将铸造板坯的热量回收到温度等于或高于钢水的Ar点。

9. 发明专利

JP2013111603A Method of evaluating mold powder in continuous casting and continuous casting method using the same 审中-公开
标题翻译：使用连续铸造评估模具粉末的方法和连续铸造方法
公开(公告)号：JP2013111603A
公开(公告)日：2013-06-10
申请号：JP2011259332
申请日：2011-11-28
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ITO YOICHI , NABESHIMA SEIJI
IPC分类号： B22D11/16 , B22D11/108 , C21C7/076
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a method of evaluating mold powder in continuous casting that attains appropriate continuous casting by finding out vivid change of mold powder during long-term operation, and to provide a continuous casting method using the same.SOLUTION: The thermocouple 2 temperature of a thermocouple buried 5-15 mm deep from the surface on a molten steel side of a mold copper plate is used at a position 200-350 mm below a meniscus position in the mold copper plate, thereby obtaining the temperature gradient ΔT_between an average thermocouple temperature T_for past 10 seconds from present time and a present thermocouple temperature T_that is represented by the following formula. When the temperature gradient ΔT_is ΔT_>10 (°C/sec) at a frequency of 0.05 times/min or more, a mold powder is evaluated abnormal.ΔT_=(T_-T_)/Δt (where Δt is sampling time (sec)).
摘要翻译：要解决的问题：提供一种在连续铸造中评价模具粉末的方法，其通过在长期运行中发现模具粉末的变化而获得适当的连续铸造，并提供使用该模具粉末的连续铸造方法。
解决方案：在模具铜板的弯液面位置以下200-350mm的位置使用从模具铜板的钢水侧的表面埋深5-15mm的热电偶的热电偶2的温度，从而获得当前时间过去10秒的平均热电偶温度T_ TC10 之间的温度梯度ΔT_ TC 和当前热电偶温度 T_ TC ，由以下公式表示。当温度梯度ΔT_ TC 以0.05次/分钟的频率为ΔT_ TC > 10（℃/秒）时，更多地，模具粉末被评估为异常.ΔT_ TC =（T_ TC10 -T_ TC ）/Δt（其中Δt是采样时间（秒））。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2012157872A Casting mold for continuous casting of steel and continuous casting method of steel 有权
标题翻译：铸钢连续铸造铸造模具和钢连续铸造方法
公开(公告)号：JP2012157872A
公开(公告)日：2012-08-23
申请号：JP2011017556
申请日：2011-01-31
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ITOYAMA SEIJI , NABESHIMA SEIJI , NISHIMURA TAKASHI , TANAKA YOSHIYUKI , ISHIKAWA AYUMI , ISAKI KENTA
IPC分类号： B22D11/16 , B22D11/04
摘要： PROBLEM TO BE SOLVED: To provide a casting mold for continuous casting which has small casting speed dependence and superior operation flexibility, capable of effectively suppressing air gap generation between the casting mold and a solidification shell even when casting speed is changed in a range of about two times, and thereby internal cracking under a surface layer of a corner part of the cast slab and longitudinal crack caused by the internal cracking are effectively prevented, in the casting mold for continuously casting a steel cast slab in which ratio of long side length to short side length of the cast slab is 1-2.SOLUTION: In the casting mold for steel cast slab, the ratio of the long side length to the short side length of the cast slab is 1-2, and an inclined plane wherein a facing interval is gradually narrowed toward a cast slab extracting direction is provided on the inner surface of the casting mold. The internal surface of a short side 3 of the casting mold is formed by two inclined planes of a first inclined plane 8 of the upper side and a second inclined plane 9 of the lower side, and the inner surface of the long side of the casting mold is formed by one inclined plane. A taper value of the first inclined plane is larger than a taper value of the second inclined plane, and further, a taper value of the inner surface of the long side is smaller than the taper value of the first inclined plane.
摘要翻译：要解决的问题：为了提供一种铸造速度依赖性和优异的操作灵活性的连续铸造用铸模，能够有效地抑制铸模和固化壳之间的气隙的产生，即使铸造速度发生变化在铸造板的角部的表面层和内部裂纹引起的纵向裂纹的内部开裂的范围为2倍左右，在连铸铸钢件的铸造模具中，铸造板坯的长度短边长度为1-2。解决方案：在铸钢板坯的铸造模具中，铸坯的长边长度与短边长度的比例为1-2，其中面向间隔逐渐变窄的铸造板坯的倾斜面提取方向设置在铸模的内表面上。铸模的短边3的内表面由上侧的第一倾斜面8和下侧的第二倾斜面9的两个倾斜平面形成，铸件的长边的内表面模具由一个倾斜平面形成。第一倾斜面的锥度值大于第二倾斜面的锥度值，长边的内表面的锥度值小于第一倾斜面的锥度值。版权所有（C）2012，JPO＆INPIT

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