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61. 发明公开

EP3308895A4 MULTI-ELECTRODE SUBMERGED ARC WELDING METHOD, WELDED JOINT, AND METHOD FOR MANUFACTURING SAME 有权
公开(公告)号：EP3308895A4
公开(公告)日：2018-07-11
申请号：EP16807126
申请日：2016-06-08
申请人： JFE STEEL CORP
发明人： KOZUKI SHOHEI , HAYAKAWA NAOYA , OI KENJI
IPC分类号： B23K9/18 , B23K9/095
CPC分类号： B23K9/18 , B23K9/095 , B23K9/184 , B23K9/188
摘要： A multi-electrode submerged arc welding method using a plurality of electrodes is provided. For each of a second electrode to an nth electrode except a first electrode that is a front electrode in a welding direction where n is an integer of 2 or more: a welding power supply capable of controlling a waveform of a welding current is used; and when a maximum value of an electromagnetic force F i acting on an arc column at a wire tip of an ith electrode during welding is denoted by F imax in N/m, an average value of the electromagnetic force F i is denoted by F iave in N/m, and a standard deviation of the electromagnetic force F i is denoted by Ã Fi in N/m, welding is performed so that F imax, F iave , and Ã Fi satisfy relationships in Expressions (1) and (2).

62. 发明公开

EP2786830A4 SUBMERGED ARC WELDING METHOD FOR STEEL SHEETS 有权
标题翻译： UP焊接工艺钢板
公开(公告)号：EP2786830A4
公开(公告)日：2016-04-20
申请号：EP12853275
申请日：2012-11-28
申请人： JFE STEEL CORP
发明人： ISHIGAMI ATSUSHI , HAYAKAWA NAOYA , YANO KOJI
IPC分类号： B23K9/18 , B23K33/00
CPC分类号： B23K9/188 , B23K33/006 , B23K2201/06 , B23K2203/04
摘要： The present invention provides a submerged arc welding method capable of an attempt to enhance toughness of a welded zone with low heat input and an attempt to decrease a weld reinforcement height by suppressing excessive melting of a wire, and capable of achieving a deep depth of penetration and a wide bead width. In the submerged arc welding method, a first electrode at the head in a welding direction has a wire diameter of 2.0 to 3.2 mm and a current density of 145 A/mm 2 or more, second and subsequent electrodes are arranged behind the first electrode in a line, and a groove formed in a steel plate has a two-step groove shape satisfying ¸ B

63. 发明公开

EP2786829A4 SUBMERGED ARC WELDING METHOD FOR STEEL SHEETS 有权
标题翻译： UP焊接工艺钢板
公开(公告)号：EP2786829A4
公开(公告)日：2015-07-15
申请号：EP12853232
申请日：2012-11-28
申请人： JFE STEEL CORP
发明人： ISHIGAMI ATSUSHI , HAYAKAWA NAOYA , YANO KOJI
IPC分类号： B23K9/18
CPC分类号： B23K9/188 , B23K9/23 , B23K33/006 , B23K2201/06 , B23K2203/04

64. 发明公开

EP2402106A4 COMPLEX METHOD OF WELDING INCOMBINATION OF GAS-SHIELD ARK WELDING WITH SUBMERGED ARK WELDING 有权
标题翻译： KOMPLEXES SCHWEISSVERFAHREN MIT EINER KOMNBINATION AUS SCHUTZGASSCHWISSEN UND UP SCHWEISSEN
公开(公告)号：EP2402106A4
公开(公告)日：2015-02-11
申请号：EP10746369
申请日：2010-02-25
申请人： JFE STEEL CORP
发明人： HAYAKAWA NAOYA , OI KENJI , ISHIGAMI ATSUSHI , SHIMADA KENJI , ODAKA MASAHIRO
IPC分类号： B23K9/16 , B23K9/025 , B23K9/09 , B23K9/173 , B23K9/18 , B23K28/02 , B23K33/00 , B23K103/04
CPC分类号： B23K9/1735 , B23K9/025 , B23K9/09 , B23K9/188 , B23K28/02 , B23K33/004 , B23K2201/18 , B23K2203/04

65. 发明公开

EP3162489A4 METHOD OF BUTT WELDING STEEL PLATES AND BUTT WELD JOINT OF STEEL PLATES 有权
标题翻译： VERFAHREN ZUM STUMPFSCHWEISSEN VON STAHLPLATTEN UND STUMPFSCHWEISSNAHT VON STAHLPLATTEN
公开(公告)号：EP3162489A4
公开(公告)日：2017-06-07
申请号：EP15814944
申请日：2015-06-25
申请人： JFE STEEL CORP
发明人： KOZUKI SHOHEI , HAYAKAWA NAOYA , OI KENJI
IPC分类号： B23K28/02 , B23K9/18 , B23K26/21 , C22C38/00 , C22C38/14
CPC分类号： B23K9/18 , B23K26/21 , B23K28/02 , C22C38/00 , C22C38/14
摘要： A method of butt welding steel plates includes: butting two steel plates (1) together, to form a Y groove having an opening portion (2) in an upper part and a root face portion (3) in a lower part; joining the two steel plates at the opening portion (2) of the Y groove by submerged arc welding, to form submerged arc weld metal (4) whose Ti content is 0.030 mass% to 0.100 mass%, B content is 0.0030 mass% to 0.0080 mass%, and [%Al]/[%O] is in a range of 0.5 to 1.2 where [%Al] is Al content in mass% and [%O] is O content in mass%; and joining the two steel plates at the root face portion (3) of the Y groove by laser welding, to form laser weld metal (5) so that the laser weld metal (5) enters into the submerged arc weld metal (4).
摘要翻译：一种对接焊接钢板的方法，包括：将两块钢板（1）对接在一起，以形成在上部具有开口部分（2）并在下部具有根部面部分（3）的Y槽; 通过埋弧焊接在Y槽的开口部（2）接合两块钢板，从而形成Ti含量为0.030质量％〜0.100质量％的埋弧焊金属（4），B含量为0.0030质量％〜0.0080质量％质量％，[％Al] / [％O]为0.5〜1.2，其中[％Al]为Al含量以质量％计，[％O]以质量％计为O含量。并且通过激光焊接在Y槽的根部面部分（3）处接合两个钢板以形成激光焊接金属（5），使得激光焊接金属（5）进入埋弧焊接金属（4）。

66. 发明公开

EP3162489A1 METHOD OF BUTT WELDING STEEL PLATES AND BUTT WELD JOINT OF STEEL PLATES 有权
标题翻译： VERFAHREN ZUM STUMPFSCHWEISSEN VON STAHLPLATTEN UND STUMPFSCHWEISSNAHT VON STAHLPLATTEN
公开(公告)号：EP3162489A1
公开(公告)日：2017-05-03
申请号：EP15814944
申请日：2015-06-25
申请人： JFE STEEL CORP
发明人： KOZUKI SHOHEI , HAYAKAWA NAOYA , OI KENJI
IPC分类号： B23K28/02 , B23K9/18 , B23K26/21 , C22C38/00 , C22C38/14
CPC分类号： B23K9/18 , B23K26/21 , B23K28/02 , C22C38/00 , C22C38/14
摘要： A method of butt welding steel plates includes: butting two steel plates (1) together, to form a Y groove having an opening portion (2) in an upper part and a root face portion (3) in a lower part; joining the two steel plates at the opening portion (2) of the Y groove by submerged arc welding, to form submerged arc weld metal (4) whose Ti content is 0.030 mass% to 0.100 mass%, B content is 0.0030 mass% to 0.0080 mass%, and [%Al]/[%O] is in a range of 0.5 to 1.2 where [%Al] is Al content in mass% and [%O] is O content in mass%; and joining the two steel plates at the root face portion (3) of the Y groove by laser welding, to form laser weld metal (5) so that the laser weld metal (5) enters into the submerged arc weld metal (4).
摘要翻译：对接钢板的方法包括：将两个钢板（1）对接在一起，形成在上部具有开口部分（2）的Y槽和下部的根部部分（3）; 通过埋弧焊在Y槽的开口部（2）接合两个钢板，形成Ti含量为0.030质量％〜0.100质量％的浸没电弧焊接金属（4），B含量为0.0030质量％〜0.0080 质量％，[％Al] / [％O]在0.5〜1.2的范围内，其中[％Al]为Al质量％，[％O]为O质量％并且通过激光焊接在Y槽的根部部分（3）处接合两个钢板，以形成激光焊接金属（5），使得激光焊接金属（5）进入埋弧焊接金属（4）。

67. 发明公开

EP2883643A4 SUBMERGED ARC WELDING METHOD, WELD JOINT FORMED BY THE WELDING METHOD, AND STEEL PIPE OR TUBE HAVING THE WELD JOINT 有权
标题翻译： IN IN与焊接这种焊接形焊接与钢管粉末焊接
公开(公告)号：EP2883643A4
公开(公告)日：2016-05-04
申请号：EP13828082
申请日：2013-05-24
申请人： JFE STEEL CORP
发明人： KOZUKI SHOHEI , ISHIGAMI ATSUSHI , HAYAKAWA NAOYA
IPC分类号： B23K9/18 , B23K33/00
CPC分类号： B23K33/004 , B23K9/18

68. 发明公开

EP2436472A4 SUBMERGED ARC WELDING METHOD FOR STEEL PLATE 有权
标题翻译： UP焊接工艺钢板
公开(公告)号：EP2436472A4
公开(公告)日：2015-05-27
申请号：EP09845247
申请日：2009-09-04
申请人： JFE STEEL CORP
发明人： ISHIGAMI ATSUSHI , OI KENJI , HAYAKAWA NAOYA
IPC分类号： B23K9/18 , B23K9/025 , B23K101/06
CPC分类号： B23K9/18 , B23K9/0253 , B23K33/006 , B23K2201/06 , B23K2201/10 , B23K2203/04
摘要： Provided is a submerged arc welding method for a steel plate which is preferably used in making and welding a large diameter pipe such as a UOE steel pipe or a spiral steel pipe. As specific means, in welding the steel plate from an internal surface or an external surface by a submerged arc welding, welding condition is set such that, a cross-sectional area of internal weld metal S 1 and a cross-sectional area of external weld metal S 2 satisfy the formula (1), the formula (2), and the formula (3), that is, 0.40‰¤(S1+S2)/t 2 ‰¤0.80 ...... (1), S 1 /t 2 ‰¤0.35 ...... (2), and S 2 /t 2 ‰¤0.45 ...... (3), wherein t: a plate thickness of the steel plate (mm), S 1 : a cross-sectional area of the internal weld metal (mm 2 ) excluding the cross-sectional area of a portion of the internal weld metal overlapping with the external weld metal after external welding, and S 2 : a cross-sectional area of the external weld metal (mm 2 ).

69. 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

70. 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

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