公开(公告)号：JP2013237103A

公开(公告)日：2013-11-28

申请号：JP2013086189

申请日：2013-04-17

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： ISHIGAMI ATSUSHI ,  HAYAKAWA NAOYA ,  YANO HIROSHI

IPC: B23K9/18 ,  B23K9/00

Abstract: PROBLEM TO BE SOLVED: To provide a multi-electrode submerged arc welding method capable of controlling a bead width without considerably changing welding conditions and electrode arrangement, of increasing the bead width to prevent surface defects, such as undercut, and of forming beads in an excellent shape evenly on both sides of the weld line.SOLUTION: An N-th electrode arranged at the backmost part in the welding progress direction and an (N-1)th electrode arranged immediately before the N-th electrode are arranged on both the left side and the right side of the weld line; a distance between a wire tip end position and the weld line on the steel sheet surface of the N-th electrode and a distance between the wire tip end position and the weld line on the steel sheet surface of the (N-1)th electrode are both set within a range between 5 and 15 mm, and an electrode-to-electrode distance in the welding progress direction of the N-th electrode and the (N-1)th electrode is set within a range between 0 and 20 mm; and at the same time, a phase difference θbetween an (N-2)th electrode arranged immediately before the (N-1)th electrode and the (N-1)th electrode, a phase difference θbetween the (N-1)th electrode and the N-th electrode, and a phase difference θbetween the (N-2)th electrode and the N-th electrode are all set within a range between 60 and 300°.

Abstract translation: 要解决的问题：为了提供能够控制焊道宽度而不显着改变焊接条件和电极布置的多电极埋弧焊接方法，增加焊道宽度以防止诸如底切的表面缺陷和在 在焊接线的两侧均匀地形成良好的形状。解决方案：布置在焊接进行方向最后部分的第N电极和布置在第N电极之前的第（N-1）电极布置在两个 焊缝左侧和右侧; 第N-N电极的钢板表面上的焊丝前端位置与焊接线之间的距离以及第（N-1）个电极的钢板表面上的焊丝前端位置与焊接线之间的距离 均设定在5〜15mm的范围内，并且在第N电极和第（N-1）电极的焊接进行方向上的电极间距离设定在0〜20mm的范围内 ; 在第（N-1）电极之间配置的第（N-2）电极与第（N-1）电极之间的相位差与相位差之间的相位差 -1）电极和第N电极以及第（N-2）电极和第N电极之间的相位差和总和都设定在60和300°之间的范围内。

公开(公告)号：JP2013111642A

公开(公告)日：2013-06-10

申请号：JP2011262798

申请日：2011-11-30

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： KOZUKI TADAHEI ,  YOKOTA TOMOYUKI ,  HAYAKAWA NAOYA

IPC: B23K31/00 ,  B21C37/08 ,  B23K9/18 ,  G01N33/20

Abstract: PROBLEM TO BE SOLVED: To evaluate a low-temperature crack of a seam weld zone without using a high-strength UOE steel pipe itself.SOLUTION: A test piece 1 for welding evaluation test is formed by butt-joining two flat plates 2a, 2b formed using the same material as the high-strength UOE steel pipe, and includes a butt joint simulation part 2 having grooves 7, 8 formed on both surfaces 2c, 2d along a linear butt connection region, and restriction plates 3, 4 in a flat-plate shape provided on one surface 2c of the butt joint simulation part 2 in such a way that the restriction plates 3, 4 are parallel to a formation direction of the groove 7 on the surface 2c.

Abstract translation: 要解决的问题：不使用高强度UOE钢管本身来评估缝焊区域的低温裂纹。 解决方案：用于焊接评估试验的试件1通过使用与高强度UOE钢管相同的材料形成的两个平板2a，2b对接而形成，并且包括具有凹槽7的对接模拟部件2 8，沿直线对接连接区域形成在两个表面2c，2d上，以及设置在对接模拟部件2的一个表面2c上的平板形状的限制板3,4，使得限制板3， 4平行于表面2c上的凹槽7的形成方向。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2011067871A

公开(公告)日：2011-04-07

申请号：JP2010241478

申请日：2010-10-27

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： HAYAKAWA NAOYA ,  IHARA KOICHI ,  YASUDA KOICHI

IPC: B23K35/30 ,  B23K9/025 ,  B23K9/18 ,  B23K9/23 ,  B23K35/362 ,  B23K101/06 ,  C21D9/08 ,  C21D9/50 ,  C22C38/00 ,  C22C38/58

Abstract: PROBLEM TO BE SOLVED: To provide a tube stock for high strength thick-walled welded bend tube having superior toughness at low temperature for an entire portion of welded metal which is as-welded, or as induction-hardened, or subjected to heat treatment, namely, induction hardening and tempering or tempering.
SOLUTION: In the contents of the welded metal, amounts of Ti, V, Al, O, N, B and Ni, in particular, satisfy the following component ranges and equations (1) and (2). Ti: 30 to 400 ppm, V: 20 to 500 ppm, Al: 20 to 500 ppm, O:500 ppm or less, N: 80 ppm or less, B: 3 to 60 ppm and Ni: 3.0 mass% or less, [N]-0.087[Ti]-0.03[V]-9≤0...(1) and 0.17≤[B]/G≤2.5...(2) wherein, G=0.15[O]-0.113[Al]-0.0345[Ti]+1.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种用于高温厚壁焊接弯曲管的管材，其在低温下具有优异的韧性，用于焊接金属的整个部分，或被感应淬火或经受 热处理，即感应淬火和回火或回火。 解决方案：在焊接金属的含量中，Ti，V，Al，O，N，B和Ni的含量特别满足下列组分范围和式（1）和（2）。 Ti：30〜400ppm，V：20〜500ppm，Al：20〜500ppm，O：500ppm以下，N：80ppm以下，B：3〜60ppm，Ni：3.0质量％ [N] -0.087 [Ti] -0.03 [V]-9≤0...（1）和0.17≤[B]/G≤2.5...（2）其中，G = 0.15 [O] -0.113 [ 人] -0.0345钛[Ti] +1。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010274275A

公开(公告)日：2010-12-09

申请号：JP2009127170

申请日：2009-05-27

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： ISHIGAMI ATSUSHI ,  HAYAKAWA NAOYA ,  OI KENJI

IPC: B23K9/18 ,  B21C37/08 ,  B23K9/025 ,  B23K9/032 ,  B23K101/06 ,  B23K103/04

Abstract: PROBLEM TO BE SOLVED: To provide a submerged arc welding method for a steel material which is favorably used for the pipe-making welding of a steel pipe of large diameter such as a UOE steel pipe and a spiral steel pipe. SOLUTION: When performing the submerged arc welding for a steel material from inner and outer sides, the welding condition is set so that the inner surface weld metal sectional area S 1 and the outer surface weld meal sectional area S 2 satisfy inequalities (1), (2), (3). (1) 0.40≤(S 1 +S 2 )/t 2 ≤0.80; (2) S 1 /t 2 ≤0.35; and (3) S 2 /t 2 ≤0.45; wherein t denotes the thickness (mm) of the steel material; S 1 denotes the inner surface weld metal sectional area (mm 2 ), except that of a portion overlapping an outer surface weld metal after the welding of the outer side; and S 2 denotes the outer surface weld metal sectional area (mm 2 ). COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种有利地用于诸如UOE钢管和螺旋钢管的大直径钢管的制管焊接的钢材的埋弧焊接方法。

解决方案：当从内侧和外侧进行钢材的埋弧焊时，设定焊接条件使得内表面焊接金属截面积S 1 和外表面焊粉 截面积S 2 满足不等式（1），（2），（3）。 （1）0.40≤（S 1 S 2 ）/ t 2 ≤0.80; （2）S 1 / t 2 ≤0.35; 和（3）S 2 / t 2 ≤0.45; 其中t表示钢材的厚度（mm）; S 1 表示内表面焊接金属截面积（mm 2 ），除了在外侧焊接之后与外表面焊接金属重叠的部分; S 2 表示外表面焊接金属截面积（mm 2 ）。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2014193482A

公开(公告)日：2014-10-09

申请号：JP2014027311

申请日：2014-02-17

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： SUMI HIROYUKI ,  HAYAKAWA NAOYA

IPC: B23K25/00 ,  B23K37/06 ,  C22C38/00 ,  C22C38/04

Abstract: PROBLEM TO BE SOLVED: To provide an electroslag welding method capable of improving the toughness of a weld metal and also of inhibiting variation of toughness when bonding a diaphragm to the inside of a box column composed of four skin plates by electroslag welding.SOLUTION: There is provided an electroslag welding method for bonding a diaphragm 2 to the inside of a box column composed of four skin plates 1. The electroslag welding is conducted by: providing a clearance between the upper face of the skin plate 1 and the lower face of the diaphragm 2; contacting the backing strips 3 on the facing two sides of the diaphragm 2; contacting the lower face of the backing strip 3 on the upper face of the skin plate 1; and contacting on the upper face of the skin plate 1 between the backing strips 3, the lower face of a thin steel sheet which contains 0.10 mass% or less of C, 0.008 mass% or less of N, and has a thickness of 1 to 5 mm.

Abstract translation: 要解决的问题：提供一种能够提高焊接金属的韧性的电渣焊接方法，以及通过电渣焊将膜片粘合到由四个表皮板组成的箱形柱的内部时，抑制韧性变化。解决方案：有 提供了一种用于将隔膜2接合到由四个皮肤板1组成的箱形柱的内部的电渣焊接方法。电渣焊接通过以下方式进行：在皮肤板1的上表面和 隔膜2; 在隔膜2的相对的两侧接触背衬条3; 使背板3的下表面接触皮肤板1的上表面; 并且在背衬条3之间的表皮板1的上表面上接触，所述背衬条3是含有0.10质量％以下的C，0.008质量％以下的N的薄钢板的下表面，其厚度为1〜 5毫米。

公开(公告)号：JP2013126677A

公开(公告)日：2013-06-27

申请号：JP2011276735

申请日：2011-12-19

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： MURAKAMI YOSHIAKI ,  HAYAKAWA NAOYA ,  YANO HIROSHI ,  ENDO SHIGERU

IPC: B23K35/30 ,  B23K35/368 ,  C22C38/00 ,  C22C38/06

Abstract: PROBLEM TO BE SOLVED: To provide a flux-cored wire that is used for welding by a multi-electrode SAW (submerged arc welding) method with three or more electrodes, which is applied to secure HAZ (heat affected zone) toughness, and that is excellent in economic productivity.SOLUTION: The flux-cored wire is used for multi-electrode submerged arc welding where three or more electrodes are used, and has a wire diameter of 3.2 mm or less. The flux-cored wire for submerged arc welding contains, by mass% with respective to the total mass of the wire, 0.04-0.22% C, 0.1-0.6% Si, 1.0-3.0% Mn, 4.0-10.0% Ni, 3.0% or less Mo, 0.01-0.25% Ti, 0.01-0.5% REM, and the balance Fe with inevitable impurities in the total of a steel shell and/or a filler flux, wherein a filling factor of the filler flux relative to the total mass of the wire is 10-40 mass%.

Abstract translation: 要解决的问题：提供一种用于通过具有三个或更多个电极的多电极SAW（埋弧焊））焊接用的药芯焊丝，其用于确保HAZ（热影响区）韧性 ，经济生产力优秀。 解决方案：药芯焊丝用于使用三个或更多个电极的多电极埋弧焊，线径为3.2mm或更小。 用于埋弧焊的药芯焊丝以质量％计，以电线总质量计含有0.04-0.22％C，0.1-0.6％Si，1.0-3.0％Mn，4.0-10.0％Ni，3.0％ 或更少的Mo，0.01-0.25％Ti，0.01-0.5％REM，余量为Fe与钢壳和/或填料助熔剂总量中不可避免的杂质，其中填料助熔剂相对于总质量的填充因子 的电线为10-40质量％。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013123711A

公开(公告)日：2013-06-24

申请号：JP2011271795

申请日：2011-12-13

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： MURAKAMI YOSHIAKI ,  HAYAKAWA NAOYA ,  YANO HIROSHI ,  ENDO SHIGERU

IPC: B23K35/368 ,  B23K9/025 ,  B23K9/18

Abstract: PROBLEM TO BE SOLVED: To provide a flux cored wire for submerged arc welding capable of extremely effectively reducing the amount of diffusible hydrogen in a welding metal and a multi-electrode submerged arc welding method using the same.SOLUTION: The flux cored wire for submerged arc welding is a wire containing flux for use in submerged arc welding, and the flux filled in the wire has a composition containing 0.1 mass% or more and less than 10 mass% of a powdered fluorine compound whose melting point is 1,000°C or less.

Abstract translation: 要解决的问题：提供一种能够非常有效地减少焊接金属中的扩散氢的量的潜埋电弧焊的药芯焊丝以及使用其的多电极埋弧焊接法。 解决方案：埋弧焊用药芯焊丝是一种用于埋弧焊的焊丝，焊丝中填充的焊剂含有0.1质量％以上且小于10质量％的粉末状 氟化合物，其熔点为1000℃以下。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013111611A

公开(公告)日：2013-06-10

申请号：JP2011260277

申请日：2011-11-29

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： ISHIGAMI ATSUSHI ,  HAYAKAWA NAOYA ,  YANO HIROSHI

IPC: B23K9/18

Abstract: PROBLEM TO BE SOLVED: To provide a multi-electrode submerged arc welding method, which enhances toughness of a welded part without increasing the amount of wire to be melted with low heat input and can obtain a deep penetration and a wide bead width.SOLUTION: The diameter of a wire of a first electrode at the leading head in welding proceeding direction is determined to 2.0 to 3.2 mm, two electrodes are provided on both sides of a welding line at the tail end of the welding proceeding direction, the position of the wire tip on the surface of the steel sheets of the two electrodes is arranged on the same line that is perpendicular to the welding line, the distance W (mm) between the position of the wire tip and the welding line is determined to 5 to 20 mm, and the distance M (mm) between the welding line and the position where the vertical line vertically drawn from the center of the top end of a contact tip intersects the surface of the steel sheet satisfies M≥W.

Abstract translation: 要解决的问题：提供一种多电极埋弧焊接方法，其不会增加焊接部件的韧性，而不会在低热输入下增加待熔化的焊丝的数量，并且可以获得深度穿透和宽的焊道宽度 。 解决方案：焊接前进方向的前端头部的第一电极的线的直径为2.0〜3.2mm，在焊接行进方向的尾端的焊接线的两侧设置两个电极 电线尖端在两电极的钢板表面上的位置配置在与焊接线垂直的同一条线上，线尖位置与焊接线之间的距离W（mm）为 确定为5〜20mm，并且焊接线与从触头的顶端的中心垂直拉拔的垂直线与钢板的表面相交的位置之间的距离M（mm）满足M≥W。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2011212691A

公开(公告)日：2011-10-27

申请号：JP2010080572

申请日：2010-03-31

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： MURAKAMI YOSHIAKI ,  OI KENJI ,  HAYAKAWA NAOYA

IPC: B23K35/368 ,  B23K9/18 ,  B23K35/30 ,  B23K35/362 ,  C22C38/00 ,  C22C38/06

Abstract: PROBLEM TO BE SOLVED: To provide a flux-cored welding wire which is suitably used for small diameter multiple electrodes submerged arc welding of 3 or more electrodes, has a diameter of 3.2 mm or less, and is excellent in low temperature toughness of a welded metal.SOLUTION: The flux-cored welding wire has the diameter of 3.2 mm or less, and the total of a steel-made shell and a flux component comprises, in wire total mass%, 0.04-0.22% of C, 0.1-0.6% of Si, 1.0-3.0% of Mn, ≤10.0% (including 0%) of Ni, ≤3.0% (including 0%) of Mo, 0.1-1.0% of Mg, 0.01-0.25% of Ti, and 0.1-0.5% of REM, and further comprises as needed one or more of 0.1-0.5% of BO, ≤0.5% of Cu, ≤1.0% of Cr, ≤0.1% of V, ≤0.05% of Nb and the balance of Fe with unavoidable impurities. A mass ratio (filling rate) of a metal base flux component to a wire total mass is 10-40%.

Abstract translation: 要解决的问题：为了提供适用于3根以上电极的小直径多电极埋弧焊的药芯焊丝，其直径为3.2mm以下，焊接的低温韧性优异 金属。溶液：药芯焊丝的直径为3.2mm以下，钢制外壳和助焊剂成分的总和，以丝总质量％计，为0.04-0.22％C，0.1-0.6 ，1.0〜3.0％的Mn，≤10.0％（包括0％）的Ni，≤3.0％（包括0％）的Mo，0.1-1.0％的Mg，0.01-0.25％的Ti和0.1- 并且进一步根据需要添加0.1〜0.5％的BO，≤0.5％的Cu，≤1.0％的Cr，≤0.1％的V，≤0.05％的Nb和余量的Fe 不可避免的杂质。 金属基助焊剂成分与电线总质量的质量比（填充率）为10〜40％。

公开(公告)号：JP2011206828A

公开(公告)日：2011-10-20

申请号：JP2010078220

申请日：2010-03-30

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： MURAKAMI YOSHIAKI ,  OI KENJI ,  HAYAKAWA NAOYA

IPC: B23K35/368 ,  B21C37/06 ,  B23K9/025 ,  B23K9/18 ,  B23K35/30

Abstract: PROBLEM TO BE SOLVED: To provide a flux-cored welding wire with a diameter of ≤3.2 mm which is favorably used for fine diameter wire multiple electrode submerged arc welding with three or more electrodes and excellent in the low-temperature toughness of a welded metal.SOLUTION: The flux-cored welding wire has the wire entire composition containing by mass, 0.04-0.22% C, 0.1-0.6% Si, 1.0-3.0% Mn, 0.01-0.25% Ti, 0.01-0.5% REM, and further containing one or two kinds of ≤10.0% Ni, ≤3.0% Mo, and further containing 0.1-0.5% BOand ≤0.5% Cu as necessary, and the balance Fe with inevitable impurities, wherein the mass ratio (the filling ratio) of the metallic flux component to the entire wire mass is 10-40%.

Abstract translation: 要解决的问题：提供直径≤3.2mm的药芯焊丝，其有利地用于具有三个或更多个电极的细直径线多电极埋弧焊，并且焊接金属的低温韧性优异 解决方案：药芯焊丝的线整体组成为质量含量为0.04-0.22％，Si为0.1-0.6％，Mn为1.0-3.0％，Ti为0.01-0.25％，Ti为0.01-0.5％。 含有一种或两种≤10.0％Ni，≤3.0％Mo，并且根据需要还含有0.1-0.5％BO和≤0.5％Cu，余量为Fe与不可避免的杂质，其中， 整个线质量的金属助焊剂组分为10-40％。