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1. 发明专利

JP2005279768A Flux cored wire for welding and weld joint for steel structure 审中-公开
标题翻译：用于焊接和焊接接头的钢丝绳用于钢结构
公开(公告)号：JP2005279768A
公开(公告)日：2005-10-13
申请号：JP2004101564
申请日：2004-03-30
申请人： Jfe Steel Kk , Jfeスチール株式会社 , National Institute For Materials Science , Nippon Welding Rod Kk , 日本ウエルディング・ロッド株式会社 , 独立行政法人物質・材料研究機構
发明人： NAKAMURA TERUMI , HIRAOKA KAZUO , HAYAKAWA NAOYA , SAITO TEIICHIRO , ITO TADASHI , YOSHIDA MASAYA , MORIKAGE YASUSHI , KUBO TAKAHIRO , YASUDA KOICHI
IPC分类号： B23K9/173 , B23K9/00 , B23K9/23 , B23K35/30 , B23K35/368 , B23K103/04 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To enhance crack resistance and weldability of stainless steel and also to improve fatigue strength and crack resistance in manufacturing a large structure such as a ship and a bridge by lowering martensitic transformation temperature of weld metal and reducing or eliminating residual tensile stress.
SOLUTION: In the flux cored wire in which a flux powder is filled inside a tubular metallic jacket made of stainless steel, the flux cored wire to use is designed to contain 6.5-25 mass % flux powder in the wire weight, wherein the quantity of metallic powder in the flux powder is 0.3-10 mass % in the wire weight, and wherein 3.5-15 mass % metal other than the powder in the wire weight is contained together with the flux powder inside the metallic jacket.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提高不锈钢的抗裂纹性和焊接性，并且通过降低焊接金属的马氏体相变温度并减少或消除来制造诸如船舶和桥梁等大型结构的疲劳强度和抗裂纹性，残余拉伸应力。解决方案：在焊剂粉末填充在由不锈钢制成的管状金属护套内的药芯焊丝中，使用的药芯焊丝被设计为含有6.5-25质量％的焊丝重量的助焊剂粉末，其中焊剂粉末中的金属粉末的量在线重量为0.3〜10质量％，其中除了金属丝重量以外的粉末中含有3.5-15质量％的金属以及金属护套内的焊剂粉末。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005028372A Welding material and welded joint for steel structure 审中-公开
标题翻译：焊接材料和焊接接头钢结构
公开(公告)号：JP2005028372A
公开(公告)日：2005-02-03
申请号：JP2003193638
申请日：2003-07-08
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： B23K9/173 , B23K9/23 , B23K35/30
摘要： PROBLEM TO BE SOLVED: To provide a welding material which improves fatigue strength of a welded joint and toughness of a weld metal compatibly without the occurrence of weld cracks.
SOLUTION: The welding material, which is used for the welded joint of a steel structure manufactured by welding a steel material, is made to a flux cored wire. The composition of a deposit metal formed with the welding material is composed of ≤0.20 mass% of C, 6.0-21.0 mass% of Cr, 4.0-20.0 mass% of Ni, ≤5.0 mass% of Si, ≤10.0 mass% of Mn, ≤0.020 mass% of P, 0.010 mass% of S, ≤4.0 mass% of Mo, ≤3.0 mass% of Nb, ≤0.5 mass% of Ca, the balance Fe and an inevitable component.
COPYRIGHT: (C)2005,JPO&NCIPI
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和焊接金属的韧性的焊接材料，而不会发生焊缝裂纹。解决方案：将用于焊接钢材的钢结构的焊接接头所使用的焊接材料制成药芯焊丝。由焊接材料形成的沉积金属的组成由C：0.20质量％，Cr：6.0-21.0质量％，Ni：4.0〜20.0质量％，Si：5.0质量％，Mn：1.0质量％，P：0.020质量％，S：4.0质量％，Nb：3.0质量％，Ca：0.5质量％，Fe：不可避免成分。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004025304A Weld joint and welding material for steel structure 有权
公开(公告)号：JP2004025304A
公开(公告)日：2004-01-29
申请号：JP2003073969
申请日：2003-03-18
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 , AMANO KENICHI , HIRAOKA KAZUO , HAYAKAWA NAOYA
IPC分类号： B23K31/00 , B23K9/00 , B23K35/30
摘要： PROBLEM TO BE SOLVED: To provide a weld joint and a welding material for a steel structur in which improvement of fatigue strength in the weld joint and improvement of toughness in the welding metal are compatible with each other without causing weld cracks.
SOLUTION: In the weld joint for the steel structure which is manufactured by welding steel materials, the martensitic transformation starting temperature is set at not higher than 200°C and not lower than 50°C for the welding metal of the weld joint, and also the retained austenite quantity in the welding metal is made not less than 5 volume % and not more than 70 volume %.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2005279767A Lime-based covered electrode, welding method and welded joint 审中-公开
标题翻译：基于极限覆盖电极，焊接方法和焊接接头
公开(公告)号：JP2005279767A
公开(公告)日：2005-10-13
申请号：JP2004101563
申请日：2004-03-30
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Kawatetsu Techno Res Corp , National Institute For Materials Science , Nippon Welding Rod Kk , 川鉄テクノリサーチ株式会社 , 日本ウエルディング・ロッド株式会社 , 独立行政法人物質・材料研究機構
发明人： HAYAKAWA NAOYA , SATO HIROTERU , HIRAOKA KAZUO , NAKAMURA TERUMI , MORIKAGE YASUSHI , KUBO TAKAHIRO , YASUDA KOICHI , SAITO TEIICHIRO , ITO TADASHI , YOSHIDA MASAYA
IPC分类号： B23K9/23 , B23K35/365 , B23K103/04 , C22C38/00 , C22C38/40 , C22C38/48
摘要： PROBLEM TO BE SOLVED: To obtain an excellently shaped weld bead even in a state as-welded, to improve soundness of a welded joint by suppressing occurrence of welding defects such as lack of fusion without performing grinding, and also to greatly enhance fatigue strength of a welded joint through a smooth weld bead and suppressed undercut.
SOLUTION: A covered electrode is used in which an alloy core wire is coated with a coating flux in which CaF
2 has such a particle distribution that the amount of particles of 30 mass% and the mass ratio (CaCO
3 /CaF
2 ) of CaCO
3 to CaF
2 is 0.4-7.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了获得即使在焊接状态下的良好的形状的焊缝，通过抑制焊接缺陷的发生（如不进行研磨）也可以提高焊接接头的良好性，并且还大大提高焊接接头通过光滑焊缝的疲劳强度和抑制底切。
解决方案：使用覆盖电极，其中合金芯线涂覆有涂层焊剂，其中CaF 2 具有这样的颗粒分布，使得<105μm的颗粒的数量≤30 质量％，105-1,680μm的颗粒的量为> 30质量％，CaCO 3的质量比（CaCO 3 / CaF 2 SB>至CaF 2 为0.4-7。版权所有（C）2006，JPO＆NCIPI

5. 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

6. 发明专利

JP2006272377A Submerged arc welding method of steel material 有权
标题翻译：钢材的电弧焊接方法
公开(公告)号：JP2006272377A
公开(公告)日：2006-10-12
申请号：JP2005093181
申请日：2005-03-28
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： HAYAKAWA NAOYA , SAKAGUCHI SHUICHI
IPC分类号： B23K9/18 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To provide a submerged arc welding method of steel materials, a method that can reduce welding heat input while securing usual penetration and that can also suppress degradation of toughness in a welding heat-affected zone. SOLUTION: In performing submerged arc welding on steel materials using multiple electrodes of two or more electrodes, the electric current of the first electrode is set at ≥800A and the current density at 180-400A/mm 2 . It is desirable that a DC power source is used for the feeding to the first electrode and/or a distance between the centers of wires of the adjacent electrodes is ≤25 mm at a position on the surface of the steel materials, and that an electrode angle α 1 is α 1 =-10 to 10° in the first electrode W 1 and is α 1 =α i-1 +(5 to 20°) in each electrode W i from the second electrode onward, where α i-1 is the electrode angle of the immediately preceding electrode W i-1 . COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供钢材的埋弧焊接方法，可以在确保通常的穿透的同时减少焊接热输入并且还可以抑制焊接热影响区域的韧性劣化的方法。
解决方案：在使用两个或多个电极的多个电极的钢材上进行埋弧焊时，第一电极的电流设定在≥800A，电流密度为180-400A / mm 2 < SP>。希望在钢材表面的位置使用直流电源来供给第一电极和/或相邻电极的电线中心之间的距离≤25mm，并且电极角度α 1 在第一电极W 1 中为α 1 = -10〜10°，α 1 =α i-1 +（5〜20°）在每个电极W i 中，其中α i-1 前一个电极W i-1 的电极角度。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2008000761A Submerged arc welding method 有权
标题翻译：电弧焊接方法
公开(公告)号：JP2008000761A
公开(公告)日：2008-01-10
申请号：JP2006169999
申请日：2006-06-20
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： SAKAGUCHI SHUICHI , HAYAKAWA NAOYA , KIYOTO YASUMITSU , AOKI MASAHIRO , HASE KAORU , NISHIYAMA SHIGEKI , ISHIZAKI YOSHIHITO
IPC分类号： B23K9/18 , B23K35/30 , B23K35/362 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To provide a submerged arc welding method by which weld metal which is excellent in toughness is stably obtained. SOLUTION: By using a welding flux containing 0.1-1 mass% B 2 O 3 and a welding wire containing 10-160 ppm% B and taking the value expressing B 2 O 3 in the welding flux in terms of B as [B] F and B in the welding wire as [B] W , the submerged arc welding is performed within the range where the value of [B] W /[B] F is 0.04-0.40. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够稳定地获得韧性优异的焊接金属的埋弧焊接方法。
解决方案：使用含有0.1-1质量％B 2 O 3 的焊剂和含有10-160ppm％B的焊丝，并获得表达以B为例[B] F 的焊剂中的B 2 O 3 而焊丝中的B为[B] W ，在[B] W / [B] F 的值为0.04-0.40的范围内进行埋弧焊。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007260684A Multiple electrode submerged arc welding method of thick steel plate 审中-公开
标题翻译：多层电极浸没式钢板焊接方法
公开(公告)号：JP2007260684A
公开(公告)日：2007-10-11
申请号：JP2006085326
申请日：2006-03-27
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： HAYAKAWA NAOYA , SAKAGUCHI SHUICHI , KAWABATA FUMIMARU
IPC分类号： B23K9/18 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To provide a submerged arc welding method of a thick steel plate, a method by which a high quality weld zone with little weld defects can be obtained by effectively reducing welding heat input while securing a conventional penetration depth.
SOLUTION: In multiple electrode submerged arc welding method using three or more electrodes, a wire having a diameter ≤3.2 mm is used as a first and a second electrode, of which a flux cored wire is applied at least to the first electrode. Also, a DC constant voltage regulated power unit is used for the supply of electricity to the first electrode, with a current density of ≥130 A/mm
2 at a current ≥700 A. Meantime, an AC power unit is used for the supply of electricity to the second electrode, with welding performed under the conditions of a current density of ≥95 A/mm
2 .
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供厚钢板的埋弧焊接方法，通过在确保常规的穿透深度的同时有效地减少焊接热输入，可以获得具有很小焊接缺陷的高质量焊接区域的方法。解决方案：在使用三个或更多个电极的多电极埋弧焊接方法中，使用直径≤3.2mm的线作为第一和第二电极，其中药芯焊丝至少施加到第一电极。而且，直流恒定电压调节功率单元用于向第一电极供电，电流密度≥130A/ mm 2 在当前≥700A。同时，AC 功率单元用于向第二电极供电，在电流密度≥95A/ mm 2 的条件下进行焊接。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2004276117A Super-thick welded member obtained by multi-layer submerged arc welding 有权
公开(公告)号：JP2004276117A
公开(公告)日：2004-10-07
申请号：JP2004154369
申请日：2004-05-25
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： HAYAKAWA NAOYA , TOKUHISA MASAAKI
IPC分类号： B23K9/18 , B23K9/095 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To provide a super-thick welded member obtained by a multi-layer submerged arc welding, in which the development of hot cracks, the defective fusion in the inner part of a beveling and the insufficient reinforcement of weld, etc., in the case of welding the super-thick steel plate at a large inlet heat, are effectively prevented.
SOLUTION: In the case of joining the super-thick steel plate with the multi-layer submerged-arc welding having large inlet heat, the welding metal of the second passing is not brought into contact with the steel plate to be welded.
COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2008240096A High strength welded steel pipe having weld metal excellent in low temperature crack resistance, and its manufacturing method 有权
标题翻译：具有低温耐腐蚀性的焊接金属的高强度焊接钢管及其制造方法
公开(公告)号：JP2008240096A
公开(公告)日：2008-10-09
申请号：JP2007084399
申请日：2007-03-28
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： HAYAKAWA NAOYA , SAKAGUCHI SHUICHI , KAWABATA FUMIMARU , OKATSU MITSUHIRO , OTA MAKOTO , NISHIYAMA SHIGEKI , NAGATANI KAORU , ISHIZAKI KEITO
IPC分类号： C22C38/00 , B21C37/08 , B23K9/18 , B23K9/23 , B23K35/30 , B23K101/06 , B23K103/04 , C22C38/58
CPC分类号： C22C38/02 , B23K35/0266 , B23K35/0272 , B23K35/3066 , C22C38/04 , C22C38/08 , C22C38/12 , F16L13/02 , Y10T428/12292 , Y10T428/12965 , Y10T428/12972
摘要： PROBLEM TO BE SOLVED: To provide high strength steel pipe of ≥800 MPa in tensile strength having weld metal excellent in low temperature crack resistance and low-temperature toughness. SOLUTION: The high strength welded steel pipe is manufactured by performing submerged arc welding for every one layer on both sides of an inner surface and an outer surface, in which the tensile strength of the base metal and weld metal of the welded steel pipe are ≥800 MPa and the weld metal contains 0.04 to 0.09 mass% C, 0.32 to 0.50 mass% Si, 1.4 to 2.0 mass% n, COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的低温抗裂性和低温韧性的焊接金属的抗张强度≥800MPa的高强度钢管。解决方案：高强度焊接钢管是通过对内表面和外表面两侧的每一层进行浸没电弧焊，其中焊接钢的母材和焊接金属的拉伸强度管子≥800MPa，焊接金属含有C：0.04〜0.09质量％，Si：0.32〜0.50质量％，n：1.4〜2.0质量％，Cu：0.5质量％以下，Ni：0.9〜≤2.2质量％，0.04〜1.5质量％％o，<0.5质量％Cr和<0.2质量％V由余量Fe和不可避免的杂质组成，CS值= 5.1 + 1.4 [Mc] - [Ni] -0.6 [Mn] - 焊接金属部件的36.3 [C]在内表面侧和外表面侧都满足≥0。版权所有（C）2009，JPO＆INPIT

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