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1. 发明专利

JP2012092422A Thick steel plate excellent in toughness of weld heat-affected zone 有权
标题翻译：厚钢板优良的焊接热影响区域
公开(公告)号：JP2012092422A
公开(公告)日：2012-05-17
申请号：JP2011044075
申请日：2011-03-01
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： IBANO AKIRA , HATANO HITOSHI , NAKO HIDENORI , SHIMAMOTO MASAKI , DEURA TETSUSHI , SUGITANI TAKASHI , OKAZAKI YOSHIOMI
IPC分类号： C22C38/00 , C21C7/04 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate excellent in toughness of a weld heat-affected zone in which HAZ toughness is excellent when giving high heat input welding, a low yield ratio can be realized, and further, which can also assure favorable base material toughness.SOLUTION: The thick steel plate satisfies a predetermined chemical composition, includes an oxide which satisfies that in a constituent element except oxygen Ti>10%, Al
摘要翻译：要解决的问题：为了提供在给予高热输入焊接时HAZ韧性优异的焊接热影响区域的韧性优异的厚钢板，可以实现低屈服比，并且还可以也保证了良好的基材韧性。解决方案：厚钢板满足预定的化学组成，包括除氧Ti> 10％以外的构成元素中的氧化物，Al <20％，5％ 6 件/ mm 2个具有至多100nm的等价圆直径的含氮氮化物的2 。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011117057A Thick steel plate having superior toughness at weld heat-affected zone and superior uniformity of strength 有权
标题翻译：在焊接热影响区域具有超级韧性的厚钢板和超强度的强度均匀性
公开(公告)号：JP2011117057A
公开(公告)日：2011-06-16
申请号：JP2009277694
申请日：2009-12-07
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAKO HIDENORI , OKAZAKI YOSHIOMI , DEURA TETSUSHI , SUGITANI TAKASHI
IPC分类号： C22C38/00 , C21C7/04 , C21D8/02 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate which can enhance not only an average value of toughness in HAZ but also the minimum value even when high-heat input welding has been conducted and also has a superior uniformity of strength properties in the sheet thickness direction.
SOLUTION: This thick steel plate satisfies a predetermined chemical component composition and includes oxides in which constituent elements except oxygen are, by mass%, 10% 2 or more, and the oxides which have circle-equivalent diameters of 2 μm or more are 100 pieces/mm
2 or less. When hardness in a t/4 position is defined as Hvq and hardness in a t/2 position is defined as Hvh, a value H determined by expression of (Hvq-Hvh)/Hvq is 0.07 or less.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种厚钢板，即使在进行高热输入焊接时也不仅能够增强HAZ的韧性的平均值，而且还能够提高最小值，并且还具有优异的强度特性均匀性在片材厚度方向上。
解决方案：该厚钢板满足预定的化学成分组成，其中除氧之外的构成元素为10％ 2 以下。当t / 4位置的硬度被定义为Hvq，t / 2位置的硬度定义为Hvh时，由（Hvq-Hvh）/ Hvq的表达式确定的值H为0.07以下。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2014058734A Thick steel plate excellent in toughness of heat affected zone 有权
标题翻译：厚钢板优质热处理区域
公开(公告)号：JP2014058734A
公开(公告)日：2014-04-03
申请号：JP2012205840
申请日：2012-09-19
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAKO HIDENORI , HATANO HITOSHI , OKAZAKI YOSHIOMI , IBANO AKIRA , DEURA TETSUSHI , SHIMAMOTO MASAKI , SUGITANI TAKASHI , KIMURA SEI , SATO SHINSUKE
IPC分类号： C22C38/00 , C21C7/04 , C21D8/02 , C22C38/14 , C22C38/58
CPC分类号： C22C38/58 , C21D8/0226 , C21D2211/004 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/44 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate excellent in toughness of a heat affected zone capable of improving an average value and a minimum value of HAZ toughness even when a high heat input welding is performed.SOLUTION: A thick steel plate satisfies the prescribed chemical composition constitution and contains oxide of which constituent elements other than oxygen satisfy, by mass%, 2%
摘要翻译：要解决的问题：提供即使在进行高热输入焊接的情况下也能够提高HAZ韧性的平均值和最小值的热影响区域的韧性优异的厚钢板。解决方案：厚钢板满足化学组成构成，其含有氧以外的构成成分的氧化物以质量％计含有2％

4. 发明专利

JP2013237902A Dust recycle method 有权
标题翻译： DUST RECYCLE方法
公开(公告)号：JP2013237902A
公开(公告)日：2013-11-28
申请号：JP2012111898
申请日：2012-05-15
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： TSUSHIMA TAKU , SUGITANI TAKASHI , SAWAYAMA MUNEYOSHI
IPC分类号： C21C5/38
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a dust recycle method in which dust produced in a decarbonizing treatment can be reused to the utmost in a decarbonizing furnace while suppressing the zinc content in molten steel obtained and the amount of lead eluted from slag produced in a decarbonizing treatment.SOLUTION: In a dust recycle method, the amount of particulate dust X (kg/t) charged into a decarbonizing furnace satisfies the following formula (1): X≤(172-100B)/A and formula (2): X≤(6.34-100b+0.0292c-0.708d)/a. In the formula (1), A represents the zinc concentration (mass%) in the particulate dust; and B represents the amount of zinc (kg/t) contained in raw materials other than the particulate dust charged into the decarbonizing furnace. In the formula (2), (a) represents the lead concentration (mass%) in the particulate dust; (b) represents the amount of lead (kg/t) contained in raw materials other than the particulate dust charged into the decarbonizing furnace; (c) represents the amount of slag (kg/t) produced in the decarbonizing furnace; and (d) represents the basicity of the slag.
摘要翻译：要解决的问题：提供一种粉尘再循环方法，其中在脱碳炉中最大程度地重新使用脱碳处理中产生的粉尘，同时抑制所获得的钢水中的锌含量和从脱碳生成的炉渣中洗脱的铅的量处理。解决方案：在粉尘循环方法中，装入脱碳炉中的粉尘X（kg / t）的量满足下式（1）：X≤（172-100B）/ A和式（2）：X ≤（6.34-100b + 0.0292c-0.708d）/ a。在式（1）中，A表示颗粒状粉尘中的锌浓度（质量％）; B表示除了装入脱碳炉内的粉尘以外的原料中所含的锌（kg / t）。式（2）中，（a）表示颗粒状粉尘中的铅浓度（质量％）。（b）表示除了装入脱碳炉内的微粒尘埃以外的原料中含有的铅（kg / t）（c）表示脱碳炉中产生的炉渣量（kg / t）和（d）表示炉渣的碱度。

5. 发明专利

JP2011241461A Thick steel plate excellent in toughness of weld heat-affected zone 审中-公开
标题翻译：厚钢板优良的焊接热影响区域
公开(公告)号：JP2011241461A
公开(公告)日：2011-12-01
申请号：JP2010116485
申请日：2010-05-20
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： IBANO AKIRA , OKAZAKI YOSHIOMI , NAKO HIDENORI , DEURA TETSUSHI , SUGITANI TAKASHI
IPC分类号： C22C38/00 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate which is excellent in HAZ (Heat-Affected Zone) toughness when welding is performed under such a condition that the input heat is ≥100 kJ/mm, and at the same time, exhibits a low yield ratio (e.g., 80% or less) and good base material toughness in a high strength region of ≥590 MPa.SOLUTION: In the thick steel plate, the contents of C, Si, Mn, P, S, Al, Ti, Ca, N, REM and Zr are adjusted. The thick steel plate contains >10% of Ti, 5% and 5% and 5% and
摘要翻译：要解决的问题：为了提供在输入热≥100kJ/ mm的条件下进行焊接时HAZ（受热影响区域）韧性优异的厚钢板，同时在≥590MPa的高强度区域中显示低屈服比（例如，80％以下）和良好的基材韧性。
解决方案：在厚钢板中，调节C，Si，Mn，P，S，Al，Ti，Ca，N，REM和Zr的含量。厚钢板含有> 10％的Ti，<20％的Al，> 5％和<40％的Ca，并且还含有> 5％和<50％的REM和/或> 5％和<40％ Zr，各自基于存在于钢中的每种氧化物中除氧之外的构成元素的总和。在钢中，满足Al /（REM + Zr）<0.7并且当量圆的直径<2μm的氧化物的氧化物每1mm <300mm×SP POS =“POST”> 2 ，并且满足关系且具有≥2μm的当量圆的直径的氧化物每1mm 2 ≤100。此外，调节存在于钢中的含Ti的氮化物的颗粒数。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2011127220A Method for manufacturing steel member excellent in toughness at weld heat-affected zone 审中-公开
标题翻译：在焊接热影响区域制造韧性优良的钢构件的方法
公开(公告)号：JP2011127220A
公开(公告)日：2011-06-30
申请号：JP2010224302
申请日：2010-10-01
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： SUGITANI TAKASHI , DEURA TETSUSHI , OKAZAKI YOSHIOMI , NAKO HIDENORI , OTA HIROMI
IPC分类号： C21C7/04 , C21C7/06 , C21C7/10 , C22C38/00 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a steel member excellent in toughness at HAZ (heat-affected zone), even in the case of performing a large heat-input welding having ≥50kJ/mm heat inputting amount.
SOLUTION: In the method for manufacturing the steel member composed of, by mass, 0.02-0.15% C, ≤0.5% Si, ≤2.5% Mn, ≤0.03% P, ≤0.02% S, ≤0.05% Al, 0.005-0.10% Ti, 0.0005-0.050% Zr, 0.0003-0.015% REM, 0.0003-0.010% Ca, ≤0.010% N, 0.0005-0.010% O and the balance Fe with inevitable impurities, dissolved oxygen quantity Q
Of in the molten steel before adding Zr is adjusted to be in the range of 0.0005-0.01 mass% and thereafter, Zr is added, wherein the dissolved oxygen quantity Q
Of and added Zr quantity Q
Zr satisfy the formula (1): log Q
Zr +2log Q
Of ≤-7.50.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使在进行≥50kJ/ mm的热输入量的大的热输入焊接的情况下，提供一种制造HAZ（热影响区）的韧性优异的钢构件的方法。解决方案：在质量分数为0.02-0.15％，≤0.5％Si，≤2.5％Mn，≤0.03％P，≤0.02％S，≤0.05％Al的钢构件的制造方法中， 0.005-0.10％Ti，0.0005-0.050％Zr，0.0003-0.015％REM，0.0003-0.010％Ca，≤0.010％N，0.0005-0.010％O，余量为不可避免的杂质，溶解氧量Q 添加Zr之前的钢水中的调整在0.0005〜0.01质量％的范围内，然后添加Zr，其中溶解氧量Q 并添加Zr量Q Zr 满足式（1）：≤-7.50的log Q SB + 2log Q SB。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010024523A Steel having excellent toughness in weld-heat affected zone 有权
标题翻译：在焊接热影响区域具有优异韧性的钢
公开(公告)号：JP2010024523A
公开(公告)日：2010-02-04
申请号：JP2008189909
申请日：2008-07-23
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： SUGITANI TAKASHI , DEURA TETSUSHI , SUGIMURA TOMOKO , OKAZAKI YOSHIOMI , NAKO HIDENORI , OTA HIROMI
IPC分类号： C22C38/00 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel which is extremely excellent in the toughness in an HAZ by suitably adjusting a chemical componential composition, thus dispersing suitable composite oxide into the steel structure, and further, dispersing TiN which does not dissipate even by heat upon welding. SOLUTION: The steel has a composition comprising 0.02 to 0.10% C, ≤0.5% (excluding 0%) Si, 1.0 to 2.0% Mn, ≤0.03% (excluding 0%) P, ≤0.02% (excluding 0%) S, ≤0.05% (excluding 0%) Al, 0.005 to 0.10% Ti, 0.001 to 0.007% REM, 0.001 to 0.050% Zr, 0.002 to 0.010% N, 0.001 to 0.010% Ca and 0.0010 to 0.015% O, respectively, and in which A value regulated by prescribed relational formula lies in the range of 500 to 6,000. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过适当地调整化学成分组成，从而将合适的复合氧化物分散到钢结构体中，并且进一步分散不均匀分散的TiN，从而提供HAZ中韧性极好的钢通过焊接加热。钢的组成为：含有0.02〜0.10％C，≤0.5％（不含0％）Si，1.0〜2.0％Mn，≤0.03％（不含0％）P，≤0.02％（不含0％）S，≤0.05％（不含0％）Al，0.005〜0.10％Ti，0.001〜0.007％REM，0.001〜0.050％Zr，0.002〜0.010％N，0.001〜0.010％Ca和0.0010〜0.015％O ，其中以规定关系式调节的A值在500至6000之间。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2014185364A Steel material excellent in toughness of welded heat affected zone 有权
标题翻译：钢材质量优于焊接热影响区
公开(公告)号：JP2014185364A
公开(公告)日：2014-10-02
申请号：JP2013060452
申请日：2013-03-22
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： SUGITANI TAKASHI , SHIMAMOTO MASAKI , NAKO HIDENORI , KIMURA SEI , SATO SHINSUKE
IPC分类号： C22C38/00 , C22C38/14 , C22C38/58
CPC分类号： C22C38/00 , C21D8/0226 , C21D9/46 , C21D2211/004 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel material excellent in toughness of a welded heat affected zone in high heat input welding.SOLUTION: A steel satisfying a given chemical component composition comprises a complex oxide containing REM, Zr, Ti, Al, Ca and S, where an oxide having a circle-equivalent diameter of over 3 μm is 5.0 per 1 mmfor the complex oxide, the complex oxide number satisfying the formula (1) is 100/mmfor a complex oxide having a circle-equivalent diameter of 0.1 to 3 μm, and the average composition of complex oxides having 0.1 to 3 μm satisfying the formula (1) is: AlO: 20% or less, TiO: 3 to 20%, ZrO: 5 to 50%, REM oxide: 5 to 50%, CaO: 5 to 50%, and S: 1 to 15%. Formula (1): 0.008≤(1/d)×{mass%S/(mass%CaO+mass%REMO)}≤0.289, (where d is a circle-equivalent diameter of individual complex oxide and 0.1 to 3 μm).
摘要翻译：要解决的问题：提供在高热输入焊接中焊接热影响区的韧性优异的钢材。解决方案：满足给定化学成分组成的钢包含含有REM，Zr，Ti，Al，Ca和 S中，对于复合氧化物，当圆当量直径超过3μm的氧化物为5.0时，满足式（1）的复合氧化物数为100 / mm，对于当量圆直径为0.1〜 3μm，并且满足式（1）的0.1〜3μm的复合氧化物的平均组成为：AlO：20％以下，TiO：3〜20％，ZrO：5〜50％，REM氧化物：5〜50 ％，CaO：5〜50％，S：1〜15％。式（1）：0.008≤（1 / d）×{质量％S /（质量％CaO +质量％REMO）}≤0.289（其中d为各复合氧化物的当量圆直径，0.1〜3μm）。

9. 发明专利

JP2014173140A Method for recycling converter dust, and blast furnace raw material 审中-公开
标题翻译：回收除尘器和BLAST FURNACE原料的方法
公开(公告)号：JP2014173140A
公开(公告)日：2014-09-22
申请号：JP2013047071
申请日：2013-03-08
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： SUGITANI TAKASHI , MAEDA KENTARO , SAWAYAMA MUNEYOSHI
IPC分类号： C21C5/38 , C21B5/00 , C21C5/30 , C22B1/244 , C22B7/02 , C22B19/30
CPC分类号： Y02P10/232 , Y02P10/234
摘要： PROBLEM TO BE SOLVED: To provide a method for recycling converter dust, in which the converter dust, that is obtained by using zinc-containing dust as an iron source and generated by blowing, can be recovered easily and surely as a blast furnace raw material.SOLUTION: The method for recycling converter dust, which is generated by blowing oxygen into an iron source containing no galvanized scrap substantially, comprises the steps of: agglomerating dust containing iron and zinc; charging the agglomerated dust in a converter before blowing is started; and recovering the converter dust to be generated after blowing is started. The average volume B of the agglomerated dust is 1-70 cm. When a ratio Y(%) of the supplied oxygen amount q(Nm) to the total oxygen amount Q(Nm) to be supplied by the blowing is smaller than Y1 or larger than Y2, only the converter dust is recovered by the blast furnace raw material. Y1=2.78×B-2.68 and Y2=3.14×B+46.61.
摘要翻译：要解决的问题：提供一种回收转炉粉尘的方法，其中通过使用含锌粉尘作为铁源并通过吹制而产生的转炉灰尘可以容易且可靠地回收为高炉原料解决方案：通过将氧气吹入不含镀锌废料的铁源中产生的转炉灰尘回收方法，包括以下步骤：将含铁和锌的灰尘聚集; 在吹塑之前对转炉中的附聚灰尘进行充电; 并回收在吹制之后产生的转炉灰尘。附聚粉尘的平均体积B为1-70cm。当供给的氧量q（Nm）与通过吹送供给的总氧量Q（Nm）的比率Y（％）小于Y1或大于Y2时，只有转炉灰尘被高炉回收原材料。 Y1 = 2.78×B-2.68，Y2 = 3.14×B + 46.61。

10. 发明专利

JP2014173139A Method for recycling converter dust, and blast furnace raw material 审中-公开
标题翻译：回收除尘器和BLAST FURNACE原料的方法
公开(公告)号：JP2014173139A
公开(公告)日：2014-09-22
申请号：JP2013047069
申请日：2013-03-08
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： SUGITANI TAKASHI , MAEDA KENTARO , SAWAYAMA MUNEYOSHI
IPC分类号： C22B7/02 , C21C5/38 , F27D17/00
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a method for recycling converter dust, in which the converter dust, that is obtained by using zinc-containing dust as an iron source and generated by blowing, can be recovered easily and surely as a blast furnace raw material.SOLUTION: The method for recycling converter dust comprises steps of: agglomerating dust containing iron and zinc; recovering the converter dust to be generated after blowing is started; and charging the agglomerated dust in the converter after blowing is started. At the step of recovering the converter dust, a ratio (%) of the supplied oxygen amount to the total oxygen amount to be supplied by blowing is smaller than Z1 which is shown by the following expression, or larger than Z2, which is also shown by the following expression. Z1=12.1+1.39×B+q1/Q×74.8 and Z2=50.5+1.61×B+q2/Q×34.5 (in which q1 is the supplied oxygen amount when charge of the agglomerated dust is started; q2 is the supplied oxygen amount when the charge of the agglomerated dust is completed at the step of charging the agglomerated dust in the converter after blowing is started.
摘要翻译：要解决的问题：提供一种回收转炉粉尘的方法，其中通过使用含锌粉尘作为铁源并通过吹制而产生的转炉灰尘可以容易且可靠地回收为高炉原料。解决方案：回收转炉粉尘的方法包括以下步骤：将含铁和锌的灰尘聚集; 回收开始吹制后产生的转炉灰尘; 并且在开始之后开始对转炉中的附聚灰尘进行充电。在回收转炉粉尘的步骤中，供给的氧量与通过吹送供给的总氧量的比例（％）小于由下式表示的Z1或大于Z2的Z1，其也示出通过以下表达式。 Z1 = 12.1 + 1.39×B + q1 / Q×74.8，Z2 = 50.5 + 1.61×B + q2 / Q×34.5（其中q1是开始附聚灰尘的充填时的供给氧量; q2是供给的氧在开始吹入之后，在转炉内的附聚灰尘的充填步骤完成附聚灰尘的充电量时，

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