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公开(公告)号：US20140175069A1
公开(公告)日：2014-06-26
申请号：US14113652
申请日：2011-04-28
IPC分类号： B23K26/24
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.
摘要翻译： 提供一种在高产率下有效地制造高品质的激光焊接钢管的方法，同时防止发生底部填充。 具体而言，使用在开口管（钢带的表面）的上表面上具有0.3mm以上的点直径的多个激光束进行焊接，多个激光束被配置为使得光点长度 在钢带的表面上垂直于焊接线延伸的多个激光束的光点长度为0.5mm以上，并且使得多个激光束在焊接线方向上的光点中心之间的距离 落在5毫米以内。
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公开(公告)号：US20140124481A1
公开(公告)日：2014-05-08
申请号：US14004271
申请日：2011-04-28
申请人： Koji Yano , Hiroyuki Sumi , Kenji Oi
发明人： Koji Yano , Hiroyuki Sumi , Kenji Oi
CPC分类号： B23K26/282 , B21C37/08 , B23K26/0608 , B23K26/262 , B23K26/32 , B23K2103/04 , B23K2103/50
摘要： A method of manufacturing a laser welded steel pipe by forming a steel strip into a cylindrical open pipe and performing laser welding on edges that includes: 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 with in-focus spot diameters exceeding 0.3 mm; emitting leading and trailing laser beams 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; 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.
摘要翻译： 一种激光焊接钢管的制造方法，其特征在于，将钢带形成为圆筒状的开口管，并在边缘进行激光焊接，所述边缘包括：从所述开口管的上表面侧沿着边缘发射两束激光，所述两束激光束 透射通过不同的光纤，焦点光点直径超过0.3 mm; 发射前导和后退的激光束，每个激光束朝向相对于垂直于所述开放管的上表面的方向以入射角进行焊接的方向倾斜; 将前导激光束的入射角设定为大于后退激光束的入射角; 并且将开启管的背面上的前导激光束的中心点与后方激光束的中心点之间的间隔设定为1mm以上。
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公开(公告)号：US08993920B2
公开(公告)日：2015-03-31
申请号：US12933241
申请日：2009-03-30
IPC分类号： B23K26/242 , B23K26/26 , B21C37/08 , B23K13/04
CPC分类号： F16L9/02 , B21C37/0811 , B23K13/046 , B23K26/262 , B23K2101/06 , B23K2103/04 , B23K2103/05
摘要： 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, and excess weld metal of the seam on the outer and inner sides 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： 钢带形成为圆筒，使得钢带的相对端彼此面对，同时连续输送钢带。 通过用挤压辊施加压力，通过用高能量密度束照射相对端，使相对端在整个厚度上熔融。 通过接合相对端形成接缝，并且通过切割来除去所获得的焊接钢管的外侧和内侧上的接缝的过量焊缝金属。 然后，通过在焊接钢管的内侧，从表面的深度为0.5mm以上的区域和接缝的宽度的两倍以上的宽度重熔和固化区域来形成修补接缝，并且 另外，接缝的中心线与修补缝的中心线重合。
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公开(公告)号：US08604382B2
公开(公告)日：2013-12-10
申请号：US12999001
申请日：2009-06-22
申请人： Koji Yano , Kenji Oi , Masahito Suzuki , Toshifumi Kodama , Shigeto Sakashita
发明人： Koji Yano , Kenji Oi , Masahito Suzuki , Toshifumi Kodama , Shigeto Sakashita
IPC分类号： B23K26/00
CPC分类号： B23K26/262 , B23K26/03 , B23K26/032 , B23K26/348 , B23K2101/06 , B23K2101/10 , B23K2103/04
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. 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.
摘要翻译： 提供了一种制造激光焊接钢管的方法，其中准确地评估了激光焊接的状态，并且使用该评估来改变焊接条件，使得可以以高产率制造激光焊接钢管 稳定的方式。 从外表面的侧面照射纵向边缘的激光束的照射点从开放管的内表面侧监测，然后用激光束进行焊接条件 如果发现任何钥匙孔从开口管的内表面渗透出来，则被评估为保持不变，或者如果没有发现钥匙孔渗透到开放管的内表面，则被修改。
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公开(公告)号：US20110100965A1
公开(公告)日：2011-05-05
申请号：US12999001
申请日：2009-06-22
申请人： Koji Yano , Kenji Oi , Masahito Suzuki , Toshifumi Kodama , Shigeto Sakashita
发明人： Koji Yano , Kenji Oi , Masahito Suzuki , Toshifumi Kodama , Shigeto Sakashita
IPC分类号： B23K26/00
CPC分类号： B23K26/262 , B23K26/03 , B23K26/032 , B23K26/348 , B23K2101/06 , B23K2101/10 , B23K2103/04
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. 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.
摘要翻译： 提供了一种制造激光焊接钢管的方法，其中准确地评估了激光焊接的状态，并且使用该评估来改变焊接条件，使得可以以高产率制造激光焊接钢管 稳定的方式。 从外表面的侧面照射纵向边缘的激光束的照射点从开放管的内表面的侧面监测，然后用激光束进行焊接条件 如果发现任何钥匙孔从开口管的内表面渗透出来，则被评估为保持不变，或者如果没有发现钥匙孔渗透到开放管的内表面，则被修改。
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公开(公告)号：US09364921B2
公开(公告)日：2016-06-14
申请号：US14004271
申请日：2011-04-28
申请人： Koji Yano , Hiroyuki Sumi , Kenji Oi
发明人： Koji Yano , Hiroyuki Sumi , Kenji Oi
IPC分类号： B23K26/262 , B23K26/28 , B21C37/08 , B23K26/06 , B23K26/32
CPC分类号： B23K26/282 , B21C37/08 , B23K26/0608 , B23K26/262 , B23K26/32 , B23K2103/04 , B23K2103/50
摘要： A method of manufacturing a laser welded steel pipe by forming a steel strip into a cylindrical open pipe and performing laser welding on edges that includes: 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 with in-focus spot diameters exceeding 0.3 mm; emitting leading and trailing laser beams 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; 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.
摘要翻译： 一种激光焊接钢管的制造方法，其特征在于，将钢带形成为圆筒状的开口管，并在边缘进行激光焊接，所述边缘包括：从所述开口管的上表面侧沿着边缘发射两束激光，所述两束激光束 透射通过不同的光纤，焦点光点直径超过0.3 mm; 发射前导和后退的激光束，每个激光束朝向相对于垂直于所述开放管的上表面的方向以入射角进行焊接的方向倾斜; 将前导激光束的入射角设定为大于后退激光束的入射角; 并且将开启管的背面上的前导激光束的中心点与后方激光束的中心点之间的间隔设定为1mm以上。
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7.发明申请WELDED STEEL PIPE JOINED WITH HIGH-ENERGY-DENSITY BEAM AND METHOD FOR PRODUCING THE SAME 有权用高能量光束接合的焊接钢管及其制造方法公开(公告)号：US20110023990A1
公开(公告)日：2011-02-03
申请号：US12933241
申请日：2009-03-30
CPC分类号： F16L9/02 , B21C37/0811 , B23K13/046 , B23K26/262 , B23K2101/06 , B23K2103/04 , B23K2103/05
摘要： 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, and excess weld metal of the seam on the outer and inner sides 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： 钢带形成为圆筒，使得钢带的相对端彼此面对，同时连续输送钢带。 通过用挤压辊施加压力，通过用高能量密度束照射相对端，使相对端在整个厚度上熔融。 通过接合相对端形成接缝，并且通过切割来除去所获得的焊接钢管的外侧和内侧上的接缝的过量焊缝金属。 然后，通过在焊接钢管的内侧，从表面的深度为0.5mm以上的区域和接缝的宽度的两倍以上的宽度重熔和固化区域来形成修补接缝，并且 另外，接缝的中心线与修补缝的中心线重合。
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公开(公告)号：US09266195B2
公开(公告)日：2016-02-23
申请号：US14008177
申请日：2011-04-28
申请人： Koji Yano , Hiroyuki Sumi
发明人： Koji Yano , Hiroyuki Sumi
CPC分类号： B23K26/32 , B23K26/0608 , B23K26/26 , B23K2103/04 , B23K2103/05 , B23K2103/50
摘要： A laser welding method includes emitting two laser beams along a weld line from an upper surface side of a workpiece, the two laser beams being transmitted through different optical fibers and having in-focus spot diameters of 0.3 mm or larger; 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 workpiece, the leading laser beam being ahead of the trailing laser beam on the upper surface of the workpiece in the direction in which welding proceeds, the trailing laser beam being behind the leading laser beam; and setting the incident angle of the leading laser beam to be larger than the incident angle of the trailing laser beam.
摘要翻译： 激光焊接方法包括沿着焊接线从工件的上表面侧发射两束激光束，两束激光束透过不同的光纤并具有0.3mm以上的焦点直径; 发射激光束，使得两个激光束的前导激光束和两个激光束的后退激光束各自朝着焊接相对于垂直于上表面的方向以入射角进行的方向倾斜 所述工件，所述前导激光束在所述工件的上表面上在所述焊接进行方向上位于所述尾部激光束之前，所述后激光束位于所述激光束的后面; 并且将前导激光束的入射角设定为大于后激光束的入射角。
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公开(公告)号：US08633865B2
公开(公告)日：2014-01-21
申请号：US13016264
申请日：2011-01-28
申请人： Tetsuya Miyagawa , Koji Yano
发明人： Tetsuya Miyagawa , Koji Yano
IPC分类号： H01Q1/42
摘要： This disclosure provides a radome to be installed on an emission face side of an antenna, which includes an outer wall having a side cross-section formed in a substantially semi-circular shape to include the antenna therein, and an inner wall arranged between the outer wall and the antenna, and formed in a shape to substantially conform to the outer wall. A gap between the outer wall and the inner wall is wider near both ends on the circumference of the substantially semi-circular shape than at a substantially midpoint on the circumference of the substantially semi-circular shape.
摘要翻译： 本公开内容提供了一种天线罩，其安装在天线的发射面侧，该天线罩包括具有形成为大致半圆形状的侧面截面的外壁，以在其中包括天线，以及设置在外部 壁和天线，并且形成为基本上符合外壁的形状。 外壁和内壁之间的间隙在基本上半圆形的圆周上的两端附近比在大致半圆形的圆周上的大致中点处更宽。
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公开(公告)号：US20110248902A1
公开(公告)日：2011-10-13
申请号：US13016264
申请日：2011-01-28
申请人： Tetsuya Miyagawa , Koji Yano
发明人： Tetsuya Miyagawa , Koji Yano
IPC分类号： H01Q1/42
摘要： This disclosure provides a radome to be installed on an emission face side of an antenna, which includes an outer wall having a side cross-section formed in a substantially semi-circular shape to include the antenna therein, and an inner wall arranged between the outer wall and the antenna, and formed in a shape to substantially conform to the outer wall. A gap between the outer wall and the inner wall is wider near both ends on the circumference of the substantially semi-circular shape than at a substantially midpoint on the circumference of the substantially semi-circular shape.
摘要翻译： 本公开内容提供了一种天线罩，其安装在天线的发射面侧，该天线罩包括具有形成为大致半圆形状的侧面截面的外壁，以在其中包括天线，以及设置在外部 壁和天线，并且形成为基本上符合外壁的形状。 外壁和内壁之间的间隙在基本上半圆形的圆周上的两端附近比在大致半圆形的圆周上的大致中点处更宽。
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