专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2792447A4 LASER WELDING POSITION-DETECTING DEVICE AND WELDING POSITION-DETECTING METHOD 失效
标题翻译：设备技术LASERSCHWEISSUNGSPOSITION用于检测LASERSCHWEISSUNGSPOSITION检测和方法
公开(公告)号：EP2792447A4
公开(公告)日：2016-05-04
申请号：EP12857094
申请日：2012-12-07
申请人： JFE STEEL CORP
发明人： KODAMA TOSHIFUMI , YANO KOJI , SUZUKI MASAHITO
IPC分类号： B23K26/20 , B23K26/00 , G01B11/00
CPC分类号： B23K26/032 , B23K26/042 , B23K26/044 , B23K26/262 , B23K2201/06 , B23K2203/04 , G06T7/269 , G06T2207/10016 , G06T2207/10048 , G06T2207/30136 , G06T2207/30152
摘要： A welding position detecting apparatus for laser beam welding according to the present invention includes an imaging device (5) that captures, at a predetermined time interval, images of an irradiated portion (4) of a welded steel pipe (1) irradiated with a welding laser beam (3), and a surrounding area thereof, of the welding material; an image processing device (6) that identifies a position of the irradiated portion (4) irradiated with the welding laser beam (3) by performing image processing calculating, from two or more images acquired by the imaging device (5), a direction and an amount of parallel movement of points in the images; and a display device (7) that displays the position of the irradiated portion irradiated with the welding laser beam, the position being identified by the image processing device (6).

2. 发明公开

EP2823927A4 WELDING TORCH FOR FIRST ELECTRODE FOR MULTI-ELECTRODE SUBMERGED ARC WELDING AND WELDING METHOD USING SAME 有权
标题翻译：用于第一电极的焊接燃烧器，用于以多种电极进行不规则焊接以及焊接工艺
公开(公告)号：EP2823927A4
公开(公告)日：2015-07-29
申请号：EP13757053
申请日：2013-03-07
申请人： JFE STEEL CORP
发明人： YOKOTA TOMOYUKI , HAYAKAWA NAOYA , KAWAI KEIJI , YANO KOJI
IPC分类号： B23K9/18 , B23K9/12 , B23K9/26 , B23K9/28 , B23K35/02
CPC分类号： B23K9/282 , B23K9/123 , B23K9/188 , B23K9/26 , B23K35/0266 , B23K2201/04 , B23K2201/06
摘要： The present invention provides a welding technology that allows stable welding even if a thin wire is used as a leading electrode in multiple-electrode submerged arc welding, particularly if welding is performed under welding conditions involving high wire feeding speed, or even if a flux-cored wire is used in which large winding remains after straightening. Provided are a welding torch, for use with a leading electrode in multiple-electrode submerged arc welding, that includes a contact tip, a connector for a power cable, a tube-shaped conductor disposed therebetween, and means for insulating the tube-shaped conductor from an electrode wire, and a multiple-electrode submerged arc welding method using such a welding torch.

3. 发明公开

EP2692475A4 LASER WELDING METHOD 有权
公开(公告)号：EP2692475A4
公开(公告)日：2015-07-15
申请号：EP11862667
申请日：2011-04-28
申请人： JFE STEEL CORP
发明人： YANO KOJI , SUMI HIROYUKI
IPC分类号： B23K26/20 , B23K26/04 , B23K26/08
CPC分类号： B23K26/32 , B23K26/0608 , B23K26/26 , B23K2203/04 , B23K2203/05 , B23K2203/50

4. 发明公开

EP2258493A4 WELDED STEEL PIPE WELDED WITH A HIGH ENERGY DENSITY BEAM, AND A MANUFACTURING METHOD THEREFOR 有权
标题翻译：与用于生产高能量密度焊接钢管和处理JET
公开(公告)号：EP2258493A4
公开(公告)日：2013-12-25
申请号：EP09727339
申请日：2009-03-30
申请人： JFE STEEL CORP
发明人： YANO KOJI , OI KENJI
IPC分类号： B21C37/30 , B21C37/08 , B23K13/04 , B23K26/20 , B23K26/26 , B23K31/00 , B23K37/08
CPC分类号： F16L9/02 , B21C37/0811 , B23K13/046 , B23K26/262 , B23K2201/06 , B23K2203/04 , B23K2203/05
摘要： Provided are a welded steel pipe that is joined with a high-energy-density beam so that there are no welding defects in the seam, and a method for efficiently producing the welded steel pipe. Specifically, a steel strip is formed into a cylinder so that opposite ends of the steel strip face each other, while continuously conveying the steel strip, the opposite ends are melted across the entire thickness by irradiating the opposite ends with a high-energy-density beam while applying a pressure with squeeze rolls, a seam is formed by joining the opposite ends, excess weld metal of the seam on the outer side and the inner side of the obtained welded steel pipe is removed by cutting, a repaired seam is then formed by remelting and solidifying a region on the inner side of the welded steel pipe, the region having a depth of 0.5 mm or more from the surface and a width of double or more the width of the seam, and in addition, the center line of the seam is made to coincide with the center line of the repaired seam.
摘要翻译：本发明提供一种焊接钢管并接合用高密度能量束，从而thatthere是在接缝没有焊接缺陷，以及用于有效地生产焊接钢管的方法。具体而言，钢带形成为圆筒所以做了钢带的相对端通过用高能量密度照射两端面对海誓山盟，同时连续输送钢带，相对端在整个厚度熔融束，同时施加与挤压辊压力，接缝是通过将相对的端部形成的，在外侧，将得到的焊接钢管的内侧的接缝的过量的焊接金属被通过切割除去，一个接缝修补然后形成通过对焊接钢管的内侧再熔化并固化的区域中，具有0.5mm以上从表面的深度和接缝的双或更多宽度的宽度，此外，中心线的区域接缝被制成与所述接缝修补部的中心线一致。

5. 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

6. 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

7. 发明公开

EP2692476A4 METHOD FOR PRODUCING LASER-WELDED STEEL TUBE 有权
标题翻译：生产激光焊接钢管的方法
公开(公告)号：EP2692476A4
公开(公告)日：2015-07-15
申请号：EP11862698
申请日：2011-04-28
申请人： JFE STEEL CORP
发明人： YANO KOJI , SUMI HIROYUKI , OI KENJI
IPC分类号： B23K26/20 , B21C37/08 , B23K26/00 , B23K26/04 , B23K26/067
CPC分类号： B23K26/282 , B21C37/08 , B23K26/0608 , B23K26/262 , B23K26/32 , B23K2203/04 , B23K2203/50
摘要： Provided is a method of stably manufacturing a laser welded steel pipe having a high quality weld portion at a high yield ratio by laser welding while a typical problem of the laser welding of frequent occurrence of undercut or underfill is solved. Specifically, a method of manufacturing a laser welded steel pipe by forming a steel strip into a cylindrical open pipe with forming rolls and performing laser welding on edges of the open pipe by emitting a laser beam while pressing the edges with squeeze rolls, the laser welding including: emitting two laser beams along the edges from an upper surface side of the open pipe, the two laser beams being transmitted through different optical fibers and having in-focus spot diameters exceeding 0.3 mm; emitting the laser beams such that a leading laser beam of the two laser beams and a trailing laser beam of the two laser beams are each inclined toward a direction in which welding proceeds at an incident angle with respect to a direction perpendicular to an upper surface of the open pipe, the leading laser beam being ahead of the trailing laser beam on the upper surface of the open pipe in the direction in which welding proceeds, the trailing laser beam being behind the leading laser beam; setting the incident angle of the leading laser beam to be larger than the incident angle of the trailing laser beam; and setting a gap between a center point of the leading laser beam and a center point of the trailing laser beam on a back surface of the open pipe to 1 mm or larger.

8. 发明公开

EP2322312A4 METHOD FOR MANUFACTURING LASER-WELDED STEEL PIPE 审中-公开
标题翻译：用于生产激光焊接钢管
公开(公告)号：EP2322312A4
公开(公告)日：2015-05-27
申请号：EP09770280
申请日：2009-06-22
申请人： JFE STEEL CORP
发明人： YANO KOJI , OI KENJI , SUZUKI MASAHITO , KODAMA TOSHIFUMI , SAKASHITA SHIGETO
IPC分类号： B23K26/26 , B23K26/03 , B23K101/06
CPC分类号： B23K26/1429 , B23K26/03 , B23K26/032 , B23K26/262 , B23K2201/06 , B23K2201/10 , B23K2203/04
摘要： There is provided a method for manufacturing a laser welded steel pipe in which the status of laser welding is accurately assessed, and the assessment is used to modify welding conditions, so that laser welded steel pipes can be manufactured at a high yield rate and in a stable manner. More specifically, irradiation point(s) of laser beam(s), with which the longitudinal edges are irradiated from the side of the outer surface, are monitored from the side of the inner surface of an open pipe, and then conditions of welding with the laser beam(s) are assessed to be kept unchanged if any keyhole is found penetrating out of the inner surface of the open pipe, or modified if no keyhole is found penetrating out of the inner surface of the open pipe, so that welding can be performed with any keyhole penetrating from the outer surface to the inner surface of the open pipe captured at any irradiation point of the laser beam(s) .

9. 发明公开

EP2703112A4 METHOD FOR PRODUCING LASER WELDED STEEL PIPE 有权
标题翻译：用于生产激光焊接钢管
公开(公告)号：EP2703112A4
公开(公告)日：2014-11-05
申请号：EP11864197
申请日：2011-04-28
申请人： JFE STEEL CORP
发明人： YANO KOJI , OI KENJI
IPC分类号： B23K26/20 , B21C37/08 , B23K26/00 , B23K26/04 , B23K26/067 , B23K26/24 , B23K26/26
CPC分类号： B23K26/262 , B21C37/08 , B23K26/0608
摘要： Provided is a method of efficiently manufacturing a high-quality laser welded steel pipe at a high yield ratio while occurrence of underfill is prevented. Specifically, welding is performed using multiple laser beams each having a spot diameter of 0.3 mm or larger on an upper surface of an open pipe (a surface of a steel strip), the plurality of laser beams being arranged such that the sum of spot lengths of the plurality of laser beams, the spot lengths extending perpendicularly to a welding line, on the surface of the steel strip is 0.5 mm or larger and such that a distance between spot centers of the plurality of laser beams in a direction of the welding line falls within 5 mm.

10. 发明专利

IN4066CHN2014A SUBMERGED ARC WELDING METHOD FOR STEEL SHEETS 未知
公开(公告)号：IN4066CHN2014A
公开(公告)日：2015-10-23
申请号：IN4066CHN2014
申请日：2014-05-30
申请人： JFE STEEL CORP
发明人： ISHIGAMI ATSUSHI , HAYAKAWA NAOYA , YANO KOJI
IPC分类号： B23K9/18
摘要： Provided is a submerged arc welding method enables: welds with high toughness to be provided with low input heat; deep penetration; and a wide bead width to be sufficiently obtained in the welding of thick materials such that the welding speed is not more than 3 m/minute. The wire diameter of a first electrode at the head in the welding direction is established at 3.9 to 4.1 mm. Two electrodes are positioned on both sides of a weld line at the tail end in the welding direction. Wire tip positions of the two electrodes on the surface of a steel sheet are positioned on the same line which is perpendicular to the weld line and the distance (W) (mm) between the wire tip positions and the weld line is established at 5 to 20 mm.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式