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1. 发明专利

JP2011240395A Continuous casting equipment and continuous casting method 有权
标题翻译：连续铸造设备和连续铸造方法
公开(公告)号：JP2011240395A
公开(公告)日：2011-12-01
申请号：JP2010117228
申请日：2010-05-21
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJI TAKEHIKO , UEJIMA YOSHIYUKI , YAMAMURA HIDEAKI , MIZOGUCHI TOSHIAKI , KANEKO TETSUYA , MIKI DAISUKE
IPC分类号： B22D11/10 , B22D11/04 , B22D11/11
摘要： PROBLEM TO BE SOLVED: To provide a method for suppressing the flowing-out itself of air bubbles inside a molten steel flow which is discharged from the discharging hole of an immersing nozzle into a casting mold, in continuous casting equipment in which an electromagnetic brake is used.SOLUTION: The immersing nozzle 10 for discharging the molten steel from a tundish 3 from the discharging holes 11, 11 which are formed on the side face in the width direction of the casting mold is composed of an injection part 10a and a body part 10b. In the upper part from the upper edge of the discharging hole 11 inside the body part 10b, an air bubble recovering part S in which at least the length L in the width direction of the casting mold is larger than the inside diameter D at the lower end of the injection hole 5d of a sliding gate 5 is formed, and they are 1.5D≤L≤4D. The inside of the air bubble recovering part S is at constant positive pressure by Ar gas which is supplied from a gas supplying part 31.
摘要翻译：要解决的问题：提供一种抑制从浸渍喷嘴的排出孔排出到铸模中的钢水流内的气泡自身流出的方法，在连续铸造设备中，使用电磁制动器。解决方案：用于从中间包3从形成在铸模的宽度方向上的侧面上的排出孔11,11排出钢水的浸渍喷嘴10由注射部分10a和主体第10b部分。在主体部10b内的排出孔11的上边缘的上部，设置有至少在铸模的宽度方向上的长度L比下侧的内径D大的气泡回收部S 形成滑动门5的喷射孔5d的端部，它们为1.5D≤L≤4D。气体回收部S的内部由从气体供给部31供给的Ar气体处于恒定的正压。（C）2012，JPO＆INPIT

2. 发明专利

JP2005059012A Manufacturing method of raw material for thixocasting ferrous alloy 有权
标题翻译：用于硫化合金的原料的制造方法
公开(公告)号：JP2005059012A
公开(公告)日：2005-03-10
申请号：JP2003207296
申请日：2003-08-12
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YAMAMURA HIDEAKI , OHASHI WATARU
IPC分类号： B22D11/00 , B22D11/055 , B22D11/059 , B22D11/108 , B22D11/11 , B22D11/12 , B22D11/126
摘要： PROBLEM TO BE SOLVED: To inexpensively and efficiently manufacture a raw material for thixocasting and to provide a method for manufacturing a casting with excellent quality by using the raw material.
SOLUTION: The method is characterized in that a cast slab for the thixocasting is manufactured by casting molten iron having a composition of white cast iron by using a continuous casting machine with a water-cooling copper mold. In this case, it is preferable that the overheating degree of the molten metal to be continuously casted is set at ≤50°C and the white cast iron has a composition satisfying (%C)≤4.3-1.3×(%Si) and C≥1.7% by mass%.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了低成本且高效地制造用于触媒的原料，并且通过使用原料提供具有优良品质的铸件的制造方法。解决方案：该方法的特征在于，通过使用具有水冷铜模的连续铸造机，通过铸造具有白铸铁的组成的铁水来制造用于触媒的铸造板坯。在这种情况下，连续铸造的熔融金属的过热度优选为≤50℃，白铸铁的组成满足（％C）≤4.3-1.3×（％Si），C ≥1.7质量％。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004322140A Continuous casting method for steel 有权
公开(公告)号：JP2004322140A
公开(公告)日：2004-11-18
申请号：JP2003119275
申请日：2003-04-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KAJITANI TOSHIYUKI , KIMURA YOSHIAKI , YAMAMURA HIDEAKI , YAMADA WATARU , TANAKA SHIGENORI
IPC分类号： B22D11/10 , B22D11/00 , B22D11/108 , B22D11/18
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method for steel by which press cracking is prevented to further improve sheet workability. SOLUTION: The continuous casting method for steel is characterized in that argon gas is blown into a poured stream of molten steel from a tundish 1 to a casting mold 5, that a continuous casting powder is used having a viscosity η of 8 poises or higher at 1,300°C, and that blowing quantity V Ar of argon gas (liter/min) into the poured stream of the molten steel is within the range of the expression, V Ar ≤0.3×η+0.5. In addition, the casting speed v C (m/min) is within the range of the expression, v C ≤(0.0527×2×60×S×η)/(W×T) (where W is a slab width (m), T is a slab thickness (m), and S is a discharge port cross section (m 2 ) of a submerged nozzle). COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2012197506A High strength steel sheet excellent in stretch flange formability and bendability and ingot method of molten steel 有权
标题翻译：高强度钢板高强度法兰刚性和弯曲性和钢铁方法
公开(公告)号：JP2012197506A
公开(公告)日：2012-10-18
申请号：JP2012007785
申请日：2012-01-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YAMAMOTO KENICHI , YAMAMURA HIDEAKI , TAKAHASHI YUZO , KONO OSAMU , KUME KOSUKE , HAJI JUNJI , SUWA YOSHIHIRO
IPC分类号： C22C38/00 , C21C7/04 , C21D9/46 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high strength steel sheet excellent in stretch flange formability and bendability.SOLUTION: The high strength steel sheet excellent in stretch flange formability and bendability includes in the steel sheet, a spherical inclusion consisting of a composite inclusion including different inclusion phases of first and second inclusion phases, which then are: the first inclusion phase containing one or at least two of Ce, La, Nd, and Pr, further containing Ca, and containing one or two from O and S; and the second inclusion phase containing at least two of Mn, Si, Ti, and Al in addition. The spherical inclusion forms one spherical combined inclusion in which the size of the circle equivalent diameter is 0.5-5 μm, the number of proportion of the inclusion is at least 50%, and the number density of the inclusion of over 5 μm is less than 10 pieces/mm.
摘要翻译：要解决的问题：提供拉伸凸缘成形性和弯曲性优异的高强度钢板。解决方案：拉伸凸缘成型性和弯曲性优异的高强度钢板在钢板中包括由包含第一和第二夹杂相的不同夹杂相的复合夹杂物构成的球形夹杂物，其为：第一夹杂相含有Ce，La，Nd和Pr中的一种或至少两种，进一步含有Ca，并且含有一个或两个O和S; 并且另外包含Mn，Si，Ti和Al中的至少两种的第二夹层相。球形夹杂物形成一个球形组合夹杂物，其中圆当量直径的大小为0.5-5μm，夹杂物的比例数至少为50％，并且包含超过5μm的数量密度小于 10件/ mm 2 。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012067330A Method for manufacturing non-oriented electromagnetic hot-rolled steel strip having high magnetic flux density 有权
标题翻译：制造具有高磁导率密度的非定向电磁热轧钢带的方法
公开(公告)号：JP2012067330A
公开(公告)日：2012-04-05
申请号：JP2010210707
申请日：2010-09-21
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KAWAMATA RYUTARO , KUBOTA TAKESHI , YAMAMURA HIDEAKI , MIYAZAKI MASAFUMI
IPC分类号： C21D8/12 , C22C38/00 , C22C38/14 , C22C38/60 , H01F1/147 , H01F1/16 , H01F27/245
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a non-oriented electromagnetic hot-rolled steel strip capable of inexpensively obtaining high magnetic flux density.SOLUTION: In this method for manufacturing a non-oriented electromagnetic hot-rolled steel strip, molten steel containing, by mass in the steel, 0.1-4.0% of Si, 0.1-2.0% of Mn, 0.03-0.1% of P, ≤2.5% of Al, ≤0.004% of C, ≤0.003% of S, ≤0.003% of N and ≤0.005% of Ti and having a residual part comprising Fe and unavoidable impurities is continuously cast into a thin cast piece having a sheet thickness of 20-100 mm, hot rolling is successively applied thereto to set the sheet thickness to 0.4-2 mm. In the method for manufacturing a non-oriented electromagnetic hot-rolled steel strip, the hot-rolling start temperature FOT of the thin cast piece after the continuous casting and the hot-rolling ending temperature FT are set to 650°C≤FOT≤850°C and 550°C≤FT≤800°C, respectively.
摘要翻译：解决的问题：提供一种能够廉价地获得高磁通密度的无取向电磁热轧钢带的制造方法。解决方案：在这种无取向电磁热轧钢带的制造方法中，钢中含有0.1〜4.0％的Si，0.1〜2.0％的Mn，0.03〜0.1％的Mn， Al，Al，≤0.004％，S≤0.003％，N≤0.003％，Ti≤0.005％，含有Fe和不可避免的杂质的残留部分，连续铸造成具有板厚为20〜100mm，依次进行热轧，将板厚设定为0.4〜2mm。在无取向电磁热轧钢带的制造方法中，连续铸造后的薄铸件的热轧开始温度FOT和热轧结束温度FT设定为650℃≤FOT≤850 ℃和550℃≤FT≤800℃。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2010270377A High-strength low-specific-gravity steel sheet superior in ductility, workability and toughness, and method for manufacturing the same 有权
标题翻译：高强度，低特异性，高强度，高可靠性和韧性的高强度钢板及其制造方法
公开(公告)号：JP2010270377A
公开(公告)日：2010-12-02
申请号：JP2009124661
申请日：2009-05-22
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OKA MASAHARU , FUJITA NOBUHIRO , TAKAHASHI MANABU , YAMAMURA HIDEAKI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high-strength low-specific-gravity steel sheet superior in ductility, workability and toughness, and to provide a method for manufacturing the same. SOLUTION: The high-strength low-specific gravity steel sheet superior in ductility, workability and toughness includes, by mass, more than 0.1-0.5% C, less than 0.2% Si, more than 0.2-3.0% Mn, 3.0-10.0% Al, 0.003-0.01% N, more than 0.1-1.0% Ti so that the elements satisfy 0.2 COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供优异的延展性，可加工性和韧性的高强度低比重钢板，并提供其制造方法。解决方案：延展性，加工性和韧性优异的高强度低比重钢包括质量大于0.1-0.5％C，小于0.2％Si，大于0.2-3.0％的Mn，3.0 -10.0％Al，0.003-0.01％N，大于0.1-1.0％Ti，使元素满足0.2

7. 发明专利

JP2010131635A Die-cast molding method for iron and die-cast molded body 审中-公开
标题翻译：用于铸铁和模铸体的模具铸造方法
公开(公告)号：JP2010131635A
公开(公告)日：2010-06-17
申请号：JP2008310099
申请日：2008-12-04
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YAMAMURA HIDEAKI , AZUMA YOSHIAKI , OHASHI WATARU
IPC分类号： B22D17/00 , B22D11/00 , B22D17/32 , C22C37/00
摘要： PROBLEM TO BE SOLVED: To provide a die-cast molding method, even in a molded body having a thin part, which can obtain satisfactory mechanical properties and the other properties, and to provide a die-cast molded body obtained thereby.
SOLUTION: In the method where the slab of white cast iron obtained by casting molten iron having a componential composition satisfying [%C] 1.7 and [%Si]
摘要翻译：要解决的问题：即使在具有能够获得令人满意的机械性能和其它性能的薄部分的成型体中，也提供了一种压铸成型方法，并且提供了由此获得的压铸模制体。解决方案：在通过铸造具有满足[％C] <4.3-1.3×[％Si]，[％C]> 1.7和[％Si]的组成成分的铁水获得的白铸铁坯料的方法中，通过使用水冷铜模的连续铸造机将<2.0加热至固液共存状态，然后将其加入到压铸装置中，并根据形状在所需的模制体中的截面积的最小部分的最小部分内的模具中的填充速度被调节; 其中，[％C]表示铁水中C的浓度（质量％）; 和[％Si]表示铁水中Si的浓度（质量％）。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2010110765A Continuous casting apparatus for steel 有权
标题翻译：连续铸钢装置
公开(公告)号：JP2010110765A
公开(公告)日：2010-05-20
申请号：JP2008282981
申请日：2008-11-04
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJI TAKEHIKO , YAMAMURA HIDEAKI , UMETSU KENJI
IPC分类号： B22D11/04 , B22D11/10 , B22D11/11 , B22D11/115
CPC分类号： B22D11/115 , B22D11/043
摘要： PROBLEM TO BE SOLVED: To reduce Ar gas bubbles included in the slab to be continuously cast and to improve the quality of the slab.
SOLUTION: The continuous casting apparatus 1 has: a die 2 provided with a pair of long side walls 2a and a pair of short side walls 2b; and an immersion nozzle 6 discharging molten steel 8 to the inside of the die 2. A curved part 5 curved to the side of a box 4a made of stainless steel is formed at the upper center of the inner side face of a copper plate 3a in each long side wall 2a. The curved part 5 is formed so as to be confronted with the immersion nozzle 6. The outer side face of the copper plate 3a of each long side wall 2a is formed so as to be a flat face. The inside of the box 4a made of stainless steel of each long side wall 2a is provided with an electromagnetic stirring device 20 stirring the molten metal 8 at the upper part in the die 2. The lower part of the electromagnetic stirring device 20 is provided with an electromagnetic braking device applying a d.c. magnetic field having a uniform magnetic flux density distribution uniform in the width direction of the die 2 to the thickness direction of the die 2.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：减少连续铸造的板坯中包含的Ar气泡并提高板坯的质量。解决方案：连续铸造设备1具有：设置有一对长侧壁2a和一对短侧壁2b的模具2; 以及将钢水8排出到模具2的内部的浸渍喷嘴6.在铜板3a的内侧面的上侧的中央形成有弯曲到不锈钢制的箱体4a侧的弯曲部5，每个长侧壁2a。弯曲部分5形成为与浸入式喷嘴6相对。每个长侧壁2a的铜板3a的外侧面形成为平坦的面。每个长侧壁2a由不锈钢制成的箱体4a的内部设置有电磁搅拌装置20，搅拌模具2上部的熔融金属8.电磁搅拌装置20的下部设有应用dc的电磁制动装置具有在模具2的宽度方向上相对于模具2的厚度方向均匀的磁通密度分布的磁场。（C）2010，JPO＆INPIT

9. 发明专利

JP2009299137A High strength steel sheet having excellent stretch flange formability and fatigue property, and method for refining molten metal thereof 有权
标题翻译：具有优异的拉伸法兰形状和疲劳性能的高强度钢板以及用于精炼其金属的方法
公开(公告)号：JP2009299137A
公开(公告)日：2009-12-24
申请号：JP2008155655
申请日：2008-06-13
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YAMAMOTO KENICHI , SASAI KATSUHIRO , YAMAMURA HIDEAKI , HARADA HIROSHI , KAWASAKI KAORU
IPC分类号： C22C38/00 , C21C7/00 , C21C7/04 , C21D9/46 , C22C38/14 , C22C38/38
CPC分类号： C21C7/0006 , C21C7/06 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/14 , Y10T428/1266
摘要： PROBLEM TO BE SOLVED: To provide a high fatigue property-low yield ratio high strength steel sheet having excellent stretch flange formability. SOLUTION: The high strength steel sheet having excellent stretch flange formability and fatigue properties has a composition containing, by mass, 0.03 to 0.20% C, 0.08 to 1.5% Si, 1.0 to 3.0% Mn, ≤0.05% P, 0.0005 to 0.02% S, 0.0005 to 0.01% N, ≤0.01% acid soluble Al, 0.08 to 0.2% acid soluble Ti and one or two kinds selected from Ce and La by 0.0005 to 0.04% in total, and, in which, by a mass base, a (Ce+La)/acid soluble Al ratio is ≥0.1, also, a (Ce+La)/S ratio is 0.4 to 50, and the balance iron with inevitable impurities, and the number density of inclusions with a circle equivalent diameter of ≤2 μm present in the steel sheet is ≥15 pieces/mm 2 . COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的拉伸凸缘成形性的高疲劳性能低屈服比的高强度钢板。解决方案：具有优异的拉伸凸缘成形性和疲劳性能的高强度钢板具有质量分数为0.03〜0.20％的C，0.08〜1.5％的Si，1.0〜3.0％的Mn，≤0.05％的P，0.0005 至0.02％S，0.0005〜0.01％N，≤0.01％酸溶性Al，0.08〜0.2％酸溶性Ti和选自Ce和La中的一种或两种，总计为0.0005〜0.04％，其中，质量碱，（Ce + La）/酸溶性Al比≥0.1，a（Ce + La）/ S比为0.4〜50，余量为铁和不可避免的杂质，含有存在于钢板中的圆当量直径≤2μm≥15个/ mm 2 。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2008264791A Mold powder for continuously casting steel and continuous casting method 有权
标题翻译：连续铸钢和连续铸造方法的模具粉末
公开(公告)号：JP2008264791A
公开(公告)日：2008-11-06
申请号：JP2007107058
申请日：2007-04-16
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YAMAMURA HIDEAKI , KAJITANI TOSHIYUKI , HARADA KOJI , OHASHI WATARU
IPC分类号： B22D11/108 , B22D11/00 , C21C7/076
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide mold powder for continuously casting a steel with which while securing difficulty to enclosure into the steel as high-viscosity powder having ≥0.8 Pa s viscosity at 1300°C, the mold powder has excellent lubrication and a high-grade product having no powder defect can be obtained without obstructing the productivity. SOLUTION: The mold powder for continuously casting the steel is the one, containing at least one of Al and Ti; 0.9-1.2 CaO/SiO 2 mass ratio; ≤38 mass% CaO; 10-35 mass% SiO 2 ; 7-25 mass% Al 2 O 3 ; 3-10 mass% Na 2 O and substantially containing no MgO; and ≥0.8 Pa s viscosity at 1300°C. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于连续铸造钢的模具粉末，在1300℃下具有≥0.8Pa·s粘度的高粘度粉末的同时确保难以包围钢的模具粉末具有优异的润滑和可以获得没有粉末缺陷的高级产品，而不会妨碍生产率。
解决方案：用于连续铸造钢的模具粉末是含有Al和Ti中的至少一种的模具粉末; 0.9-1.2 CaO / SiO 2 ; 7-25质量％Al 2 3 ; 3-10质量％Na 2 SBO，基本上不含MgO; 在1300℃时粘度≥0.8Pa。版权所有（C）2009，JPO＆INPIT

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