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1. 发明专利

JP2006289421A Welded joint for steel structure, and method for manufacturing welded joint 有权
标题翻译：钢结构焊接接头及制造焊接接头的方法
公开(公告)号：JP2006289421A
公开(公告)日：2006-10-26
申请号：JP2005113027
申请日：2005-04-11
申请人： Ishikawajima Harima Heavy Ind Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , Kawasaki Heavy Ind Ltd , Kobe Steel Ltd , 川崎重工業株式会社 , 株式会社神戸製鋼所 , 石川島播磨重工業株式会社
发明人： MORIKAGE YASUSHI , KUBO TAKAHIRO , YASUDA KOICHI , KURIHARA MASAYOSHI , AMANO KENICHI , MATSUSHITA YUKINOBU , MARUYAMA TOSHIHARU , WATANABE HIROHISA , SUZUKI MASAMICHI , NAKANISHI YASUMASA , YUKI MASAHIRO , YAMAOKA HIROTO , INOSE KOTARO , KIJI NOBORU , KIMIKADO YASUHIRO , NAKAJIMA MASAHITO
IPC分类号： B23K35/30 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a welded joint for a steel structure, which welded joint has improved welding deformation resistance and can be welded by an ordinary welding method, and further to provide a method for manufacturing the welded joint.
SOLUTION: In the welded joint for the steel structure, a welding metal contains 0.20 mass% or less of C, 4.0 to 9.0 mass% of Cr, 0.3 to 7.0 mass% of Ni, 1.0 mass% or less of Si, 2.0 mass% or less of Mn, 0.020 mass% or less of P, and 0.010 mass% or less of S, and the welding metal has a martensitic transformation temperature of 360 to 550°C.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于钢结构的焊接接头，该焊接接头具有改进的耐焊变形性，并且可以通过普通焊接方法进行焊接，并且还提供一种用于制造焊接接头的方法。＆lt;解决方案＆gt;在钢结构用焊接接头中，焊接金属含有C：0.20质量％以下，Cr：4.0〜9.0质量％，Ni：0.3〜7.0质量％，Si：1.0质量％以下， Mn的2.0质量％以下，P：0.020质量％以下，S：0.010质量％以下，焊接金属的马氏体相变温度为360〜550℃。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006231340A Joining structure and joining method 审中-公开
标题翻译：接合结构和接合方法
公开(公告)号：JP2006231340A
公开(公告)日：2006-09-07
申请号：JP2005045294
申请日：2005-02-22
申请人： Ishikawajima Harima Heavy Ind Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , 石川島播磨重工業株式会社
发明人： NAKANISHI YASUMASA , YUKI MASAHIRO , YAMAOKA HIROTO , INOSE KOTARO , KIJI NOBORU , MORIKAGE YASUSHI , YASUDA KOICHI , KUBO TAKAHIRO
IPC分类号： B23K31/00 , B23K9/00 , B23K9/02 , B23K103/04 , E01D21/00 , E04B1/58
摘要： PROBLEM TO BE SOLVED: To provide a joining structure capable of excellently joining girder members with each other by using a high-strength bolt joint.
SOLUTION: The joining structure comprises a splice plate abutted on each side face of a first girder member 10 and a second girder member 10, and a bolt member 4 to couple each of the first and second girder members with the splice plate 3. An end face of the first girder member and an end face of the second girder member are welded to each other by using a predetermined welding material. A weld metal 5 generated by the welding generates a martensitic transformation in the cooling process after the welding. The state of the weld metal when the martensitic transformation is started is defined as a first state, and the state of the weld metal cooled to the room temperature is defined as a second state. The material composition of the weld metal is set so that the expansion or contraction in the second state to that in the first state of the weld metal is below a predetermined permissible value.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过使用高强度螺栓接头来提供能够将梁连接件彼此良好地接合的接合结构。解决方案：接合结构包括接合在第一梁构件10和第二梁构件10的每个侧面上的接合板和用于将第一和第二梁构件中的每一个与接合板3联接的螺栓构件4 第一梁构件的端面和第二梁构件的端面通过使用预定的焊接材料彼此焊接。通过焊接生成的焊接金属5在焊接后的冷却工序中产生马氏体相变。将马氏体相变开始时的焊接金属的状态定义为第一状态，将冷却至室温的焊接金属的状态定义为第二状态。焊接金属的材料成分被设定为使得第二状态的膨胀或收缩与焊接金属的第一状态的膨胀或收缩低于预定的允许值。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2006231339A Repairing method of structure and repairing structure 审中-公开
标题翻译：结构和维修结构修复方法
公开(公告)号：JP2006231339A
公开(公告)日：2006-09-07
申请号：JP2005045293
申请日：2005-02-22
申请人： Ishikawajima Harima Heavy Ind Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , 石川島播磨重工業株式会社
发明人： NAKANISHI YASUMASA , YUKI MASAHIRO , YAMAOKA HIROTO , INOSE KOTARO , KIJI NOBORU , MORIKAGE YASUSHI , YASUDA KOICHI , KUBO TAKAHIRO
IPC分类号： B23K31/00 , B23K9/04 , B23P6/00
摘要： PROBLEM TO BE SOLVED: To provide a repairing method capable of excellently repairing a structure and maintaining the strength thereof.
SOLUTION: The repairing method comprises a first step of removing an area to be repaired of a structure, and a second step of repairing the structure by welding a predetermined welding material to a removed area. A weld metal generated by the welding generates a martensitic transformation in a cooling process after the welding. The state of the weld metal when the martensitic transformation is started is defined as a first state, and the state of the weld metal cooled to the room temperature is defined as a second state. The material composition of the weld metal is set so that the expansion or contraction in the second state to that in the first state of the weld metal is below a predetermined permissible value.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够极好地修复结构并保持其强度的修复方法。解决方案：修复方法包括去除要修复的结构的区域的第一步骤，以及通过将预定焊接材料焊接到去除区域来修复结构的第二步骤。通过焊接产生的焊接金属在焊接后的冷却过程中产生马氏体相变。将马氏体相变开始时的焊接金属的状态定义为第一状态，将冷却至室温的焊接金属的状态定义为第二状态。焊接金属的材料成分被设定为使得第二状态的膨胀或收缩与焊接金属的第一状态的膨胀或收缩低于预定的允许值。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006231338A Repairing method and repairing structure of rivet joint 审中-公开
标题翻译：修复方法和修复结构的RIVET接头
公开(公告)号：JP2006231338A
公开(公告)日：2006-09-07
申请号：JP2005045292
申请日：2005-02-22
申请人： Ishikawajima Harima Heavy Ind Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , 石川島播磨重工業株式会社
发明人： NAKANISHI YASUMASA , YUKI MASAHIRO , YAMAOKA HIROTO , INOSE KOTARO , KIJI NOBORU , MORIKAGE YASUSHI , YASUDA KOICHI , KUBO TAKAHIRO
IPC分类号： B23K31/00 , B23K35/30 , E04B1/24 , E04B1/58 , E04G23/02 , F16B5/04 , F16B11/00
摘要： PROBLEM TO BE SOLVED: To provide a rivet joint repairing method capable of repairing a rivet joint with excellent workability, and enhancing the quality of the repaired rivet joint.
SOLUTION: In the repairing method of a rivet joint T to join girder members having a flange part 1 and a web part 2 to each other, the rivet joint T has a splice plate 3 to be abutted on at least any one of the flange part 1 and the web part 2, and a rivet 4 arranged at a hole formed in the splice plate 3, and an end of the splice plate 3 is welded to the flange part 1 or the web part 2 with the rivet 4 being mounted.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够修复铆接接头的铆接接头修补方法，具有优异的可加工性，并且提高修复的铆钉接头的质量。解决方案：在铆接接头T的修理方法中，将具有凸缘部分1和腹板部分2的梁构件彼此连接，铆接接头T具有接合板3，凸缘部分1和腹板部分2以及布置在接合板3中形成的孔的铆钉4，并且接合板3的端部焊接到凸缘部分1或腹板部分2，铆钉4是安装。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2007197777A High-strength steel material superior in ductile-crack initiation resistance and fatigue-crack propagation resistance, and manufacturing method therefor 有权
标题翻译：高强度钢材料在破裂起爆电阻和疲劳裂纹扩展电阻及其制造方法中的应用
公开(公告)号：JP2007197777A
公开(公告)日：2007-08-09
申请号：JP2006018329
申请日：2006-01-27
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： SADASUE TERUKI , IKI SATOSHI , KUBO TAKAHIRO
IPC分类号： C22C38/00 , B21B1/38 , B21B3/00 , C21D8/02 , C22C38/04 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high-strength steel material for a structure, which is used in various welded structures and is superior in fatigue-crack propagation resistance and ductile-crack initiation resistance even when having repeatedly received a load, and to provide a manufacturing method therefor.
SOLUTION: This steel material comprises, by mass%, 0.03-0.30% C, 0.01-0.50% Si, 0.5-2.0% Mn, 0.05% or less P, 0.02% or less S, one or more of 1.0% or less Cu, 2.0% or less Ni, 1.0% or less Cr, 1.0% or less Mo, 0.1% or less Nb, 0.1% or less V, 0.1% or less Ti and 0.005% or less B, as needed, and the balance Fe with unavoidable impurities; and has a metallographic structure that is a bainitic structure, a martensitic structure or a structure mixed thereof, which includes carbides, nitrides or carbonitrides with a maximum size of 0.5 μm or smaller in lath, and that includes ferrite with a grain size of 4 μm to 50 μm in an amount of 10% to 40% by an area fraction.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于各种焊接结构的结构的高强度钢材，并且即使当重复接收到负载时，也具有优异的耐疲劳裂纹扩展性和延性抗裂开始电阻，并提供其制造方法。解决方案：该钢材以质量％计含有0.03-0.30％C，0.01-0.50％Si，0.5-2.0％Mn，0.05％或更少P，0.02％或更少S，1.0％或更少的Cu，2.0％以下的Ni，1.0％以下的Cr，1.0％以下的Mo，0.1％以下的Nb，0.1％以下的V，0.1％以下的Ti，0.005％以下的B，根据需要，以及余量Fe与不可避免的杂质; 并且具有贝氏体结构，马氏体组织或其混合结构的金相组织，其包括板条中最大尺寸为0.5μm或更小的碳化物，氮化物或碳氮化物，并且包括粒径为4μm的铁素体至50μm，面积分数为10％至40％。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007039795A Method for producing high strength steel having excellent fatigue crack propagation resistance and toughness 审中-公开
标题翻译：生产具有优异的疲劳裂纹扩展电阻和韧性的高强度钢的方法
公开(公告)号：JP2007039795A
公开(公告)日：2007-02-15
申请号：JP2006176059
申请日：2006-06-27
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： SADASUE TERUKI , IKI SATOSHI , KUBO TAKAHIRO
IPC分类号： C21D8/02 , B21B3/00 , C22C38/00 , C22C38/04 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a steel for structural use used for various welded structures such as vessels, marine structures, bridges, construction equipment, buildings and tanks, and exhibiting satisfactory fatigue crack propagation resistance even when being subjected to a repeated load.
SOLUTION: A steel having a composition comprising, by mass, C of 0.02 to 0.25%, Si of 0.01 to 0.50%, Mn of 0.5 to 2.0%, P of ≤0.05% and S of ≤0.02% S, and, if required, comprising one or more kinds selected from Cu, Ni, Cr, Mo, Nb, V, Ti and B, and the balance Fe with inevitable impurities is heated at 900 to 1,300°C, is thereafter subjected to rolling at a cumulative draft of ≥50% at an Ar
3 point or above, is immediately subjected to accelerated cooling from an Ar
3 point or above at a cooling rate of ≥5°C/s, is subsequently subjected to cooling in the temperature range of an Ms point+200°C to an Ms point-100°C at a cooling rate of 1 point or below at a temperature rising rate of ≥1°C/s, so as to obtain a mixed microstructure essentially consisting of bainite and martensite.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于制造用于各种焊接结构如船舶，船舶结构，桥梁，施工设备，建筑物和水箱的结构用钢的方法，并且即使当经受重复加载。＆lt; P＆gt;解决方案：一种组合物，其组成包括质量分数为0.02〜0.25％的Si，0.01〜0.50％的Si，0.5〜2.0％的Mn，≤0.05％的P，≤0.02％的S，S 如果需要，包括选自Cu，Ni，Cr，Mo，Nb，V，Ti和B中的一种或多种，余量为不可避免的杂质的Fe在900至1300℃下加热，然后在在Ar 3 点以上的累积通气量≥50％，以≥5℃的冷却速度立即从Ar 3 点进行加速冷却 / s，随后在Ms点+ 200℃至Ms点-100℃的温度范围内，以<4℃/ s的冷却速度≥2秒进行冷却，然后进行加速冷却 ≤200℃，冷却速度≥5℃/秒，并且以≥1℃/ s的升温速度立即重新加热至Ac 1 点以下，因此以获得基本上由贝氏体和马氏体组成的混合微观结构。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2005262258A Welding material 审中-公开
标题翻译：焊接材料
公开(公告)号：JP2005262258A
公开(公告)日：2005-09-29
申请号：JP2004077024
申请日：2004-03-17
申请人： Jfe Steel Kk , Jfeスチール株式会社 , National Institute For Materials Science , 独立行政法人物質・材料研究機構
发明人： MORIKAGE YASUSHI , YASUDA KOICHI , KUBO TAKAHIRO , HIRAOKA KAZUO , HAYAKAWA NAOYA , NAKAMURA TERUMI
IPC分类号： B23K35/30 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a welding material which makes an improvement in the fatigue strength of a welded joint without the occurrence of the break of welding and an improvement in the toughness of weld metal compatible with each other.
SOLUTION: The welding material comprises a flux wire utilized for the welded joint for the steel structure manufactured by welding the low-alloy steel products. The deposited metal formed by the welding material contains ≤0.20mass% C,
摘要翻译：要解决的问题：提供一种能够提高焊接接头的疲劳强度的焊接材料，而不发生焊接断裂和提高彼此相容的焊接金属的韧性。
解决方案：焊接材料包括用于通过焊接低合金钢产品制造的钢结构焊接接头的焊剂丝。由焊接材料形成的沉积金属含有≤0.20质量％的C，<6.0质量％的Cr，≥4.0〜≤25.0质量％的Ni，≤5.0质量％的Si。 ≤10.0质量％Mn，≤0.015质量％P，≤0.007质量％S，≤3.0质量％Nb，进一步含有≤4.0质量％Mo和≤0.5质量％Ca中的至少一种，并且由余量的沉积金属铁和不可避免的杂质。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2005240177A Method for manufacturing steel material having uniform strength in sheet thickness direction and superior fatigue-crack propagation resistance 有权
标题翻译：在厚度方向和超级疲劳裂纹扩展电阻下制造具有均匀强度的钢材的方法
公开(公告)号：JP2005240177A
公开(公告)日：2005-09-08
申请号：JP2005021547
申请日：2005-01-28
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： SADASUE TERUKI , IKI SATOSHI , KUBO TAKAHIRO
IPC分类号： C21D8/02 , C22C38/00 , C22C38/04 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a steel material having uniform strength in a sheet thickness direction and superior fatigue-crack propagation resistance.
SOLUTION: This steel material comprises, by mass%, 0.02-0.20% C, 0.01-0.50% Si, 0.5-2.0% Mn, 0.05% or less P, 0.02% or less S, one or more among 1.0% or less Cu, 2.0% or less Ni, 1.0% or less Cr, 1.0% or less Mo, 0.1% or less Nb, 0.1% or less V, 0.1% or less Ti and 0.005% or less B, as needed, and the balance substantially Fe, while satisfying Pcm defined by the following expression so as to be 0.25 or less: Pcm = C+Si/30+(Mn+Cu+Cr)/20+Ni/60+Mo/15+V/10+5B, (wherein elements not to be added are considered to be zero). The method for manufacturing the steel sheet comprises heating the steel material to 1,000 to 1,300°C; then rolling it at 900°C or higher with a cumulative rolling reduction of 50% or higher; and then immediately acceleration-cooling it from an Ar3 point or higher to 650°C or lower at a cooling rate of 1/Pcm to 6/Pcm (°C/s).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种在板厚方向上具有均匀强度的钢材的制造方法和优异的耐疲劳裂纹扩展性。解决方案：该钢材以质量％计含有0.02-0.20％C，0.01-0.50％Si，0.5-2.0％Mn，0.05％以下P，0.02％以下S，1.0％以上，或更少的Cu，2.0％以下的Ni，1.0％以下的Cr，1.0％以下的Mo，0.1％以下的Nb，0.1％以下的V，0.1％以下的Ti，0.005％以下的B，根据需要，以及余量基本上为Fe，同时满足以下表达式所定义的Pcm为0.25以下：Pcm = C + Si / 30 +（Mn + Cu + Cr）/ 20 + Ni / 60 + Mo / 15 + V / 10 + 5B，（其中不添加的元素被认为是零）。钢板的制造方法包括将钢材加热至1000〜1300℃; 然后以900℃以上的压缩率进行轧制，累积压下率为50％以上; 然后立即以1 / Pcm至6 / Pcm（℃/ s）的冷却速度将Ar 3点以上的速度加速冷却至650℃以下。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2008137024A Welded joint having excellent fatigue strength 有权
标题翻译：焊接接头具有优异的疲劳强度
公开(公告)号：JP2008137024A
公开(公告)日：2008-06-19
申请号：JP2006323986
申请日：2006-11-30
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： ISHIGAMI ATSUSHI , KAWABATA FUMIMARU , KUBO TAKAHIRO , HANDA TSUNEHISA
IPC分类号： B23K9/23 , B23K9/02 , B23K31/00 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To provide a welded joint having excellent fatigue strength equivalent to that of a flat and smooth material even if a stress concentration factor K
t at the toe of an excess metal is larger than 1.0.
SOLUTION: In an arc welding joint of structural steel, the stress concentration factor K
t at the toe of the excess metal formed on the joint is set so as to satisfy the following conditions, 1.0 t ≤1.5, and further the average hardness H
WM of the welded metal, the hardness H
B at the toe of the excess metal, and the lowest hardness H
min at a heat-affected zone are set so as to satisfy required relations.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使在过量金属的脚趾处的应力集中因子K 较大时，提供具有与平坦且平滑的材料相当的疲劳强度的优异的焊接接头比1.0。解决方案：在结构钢的电弧焊接头中，形成在接头上的过量金属的脚趾处的应力集中系数K 设定为满足以下条件：1.0 < 另外焊接金属的平均硬度H WM ，过量金属的趾部的硬度H B 并且设定热影响区域的最低硬度H min 以满足所需的关系。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007332588A U-rib steel floor slab 有权
标题翻译： U-RIB钢地板
公开(公告)号：JP2007332588A
公开(公告)日：2007-12-27
申请号：JP2006163273
申请日：2006-06-13
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KURIHARA YASUYUKI , KUBO TAKAHIRO , IKI SATOSHI
IPC分类号： E01D19/12
摘要： PROBLEM TO BE SOLVED: To provide a U-rib steel floor slab which is constituted by welding a U-rib to an undersurface of a deck plate, and which can accurately prevent the appearance of a deck penetrating crack penetrating the deck plate.
SOLUTION: A groove 13 with predetermined dimensions is preprovided on the side of the inner surface of the leading end of the U-rib 12a. The U-rib steel floor slab is manufactured by welding the U-rib 12a to the deck plate 11a from the outside of a closed-cross-section space which is formed of the deck plate 11a and the U-rib 12a.
COPYRIGHT: (C)2008,JPO&INPIT

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