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    Ultrasonic flaw detection apparatus and ultrasonic flaw detection method for pipe
    4.
    发明授权
    Ultrasonic flaw detection apparatus and ultrasonic flaw detection method for pipe 有权
    超声波探伤仪及超声波探伤方法

    公开(公告)号：US08393217B2

    公开(公告)日：2013-03-12

    申请号：US12449744

    申请日：2007-05-18

    申请人： Yukinori Iizuka ,  Kazuhito Kenmochi ,  Hiroyasu Yokoyama ,  Tomohiro Inoue ,  Shigeto Sakashita

    发明人： Yukinori Iizuka ,  Kazuhito Kenmochi ,  Hiroyasu Yokoyama ,  Tomohiro Inoue ,  Shigeto Sakashita

    IPC分类号： G01N29/04

    CPC分类号： G01N29/12 ,  G01N29/043 ,  G01N29/262 ,  G01N2291/0289 ,  G01N2291/044 ,  G01N2291/106 ,  G01N2291/2634 ,  G01N2291/2675

    摘要： The present invention has a structure capable of detecting the scattered-type penetrator having oxides each with the size of several μm sparsely and widely dispersed. Specifically, the structure includes a wave transmission unit 6 for transmitting an ultrasonic wave to the welded surface of the welded portion 2 in a pipe axial direction of the pipe 1 such that the beam width of a transmission beam 8 is brought into a range from 0.5 mm to 2.5 mm, and a wave reception unit 7 for receiving at least a portion of the reflection wave (reception beam 9) at the welded surface. The wave transmission unit 6 and the wave reception unit 7 include transmission/reception units formed of different groups of transducer elements on at least one or more array probes 5 arranged in the circumferential direction of the pipe.

    摘要翻译： 本发明具有能够检测具有疏散且广泛分散的几μm的尺寸的氧化物的散射型穿透器的结构。 具体地，该结构包括：波导传输单元6，用于在管1的管轴方向上向焊接部2的焊接面发送超声波，使得透射束8的光束宽度为0.5 以及用于在焊接面处接收反射波（接收光束9）的至少一部分的波接收部7。 波发送单元6和波接收单元7包括在沿管的圆周方向布置的至少一个或多个阵列探针5上由不同组的换能器元件形成的发送/接收单元。

    Calibration of an ultrasonic flaw detector and quality control and production methods for a tubular body
    5.
    发明授权
    Calibration of an ultrasonic flaw detector and quality control and production methods for a tubular body 有权
    超声波探伤仪的校准和管状体的质量控制和生产方法

    公开(公告)号：US08266964B2

    公开(公告)日：2012-09-18

    申请号：US12528975

    申请日：2007-05-18

    申请人： Yukinori Iizuka ,  Kazuhito Kenmochi ,  Hiroyasu Yokoyama ,  Tomohiro Inoue ,  Shigeto Sakashita

    发明人： Yukinori Iizuka ,  Kazuhito Kenmochi ,  Hiroyasu Yokoyama ,  Tomohiro Inoue ,  Shigeto Sakashita

    IPC分类号： G01H3/14 ,  G01N29/48 ,  G01N19/08

    CPC分类号： G01N29/30 ,  G01N29/11 ,  G01N2291/02854 ,  G01N2291/0289 ,  G01N2291/044 ,  G01N2291/2675

    摘要： An ultrasonic flaw detection is performed to a welded portion 2 of a pipe body 1, a defect detection threshold value is determined based on the signal intensity difference between the total area of the defects existing in the region of an ultrasonic beam on a welded surface and an artificial defect, and a quality control of the pipe body is performed based on the defect detection threshold value. An equivalent defect diameter is determined from the defect density on the welded surface of the welded portion of the pipe body in a pipe axis direction and the area of the ultrasonic beam on the welded surface based on the total area of the defects existing in the region of the ultrasonic beam, and the defect detection threshold value is determined based on the equivalent defect diameter and the signal intensity difference of the artificial defect.

    摘要翻译： 对管体1的焊接部2进行超声波探伤，根据存在于焊接面上的超声波束区域的缺陷的总面积与信号强度的差异，确定缺陷检测阈值， 基于缺陷检测阈值进行人造缺陷和管体的质量控制。 根据存在于该区域中的缺陷的总面积，从管轴方向的管体的焊接面的焊接面的缺陷密度和焊接面上的超声波束的面积确定等效的缺陷直径 ，并且基于人造缺陷的等效缺陷直径和信号强度差来确定缺陷检测阈值。

    CALIBRATION METHOD OF ULTRASONIC FLAW DETECTION AND QUALITY CONTROL METHOD AND PRODUCTION METHOD OF TUBULAR BODY
    7.
    发明申请
    CALIBRATION METHOD OF ULTRASONIC FLAW DETECTION AND QUALITY CONTROL METHOD AND PRODUCTION METHOD OF TUBULAR BODY 有权
    超声波检测的校准方法和质量控制方法及管体的生产方法

    公开(公告)号：US20100107725A1

    公开(公告)日：2010-05-06

    申请号：US12528975

    申请日：2007-05-18

    申请人： Yukinori Iizuka ,  Kazuhito Kenmochi ,  Hiroyasu Yokoyama ,  Tomohiro Inoue ,  Shigeto Sakashita

    发明人： Yukinori Iizuka ,  Kazuhito Kenmochi ,  Hiroyasu Yokoyama ,  Tomohiro Inoue ,  Shigeto Sakashita

    IPC分类号： G01N29/04

    CPC分类号： G01N29/30 ,  G01N29/11 ,  G01N2291/02854 ,  G01N2291/0289 ,  G01N2291/044 ,  G01N2291/2675

    摘要： An ultrasonic flaw detection is performed to a welded portion 2 of a pipe body 1, a defect detection threshold value is determined based on the signal intensity difference between the total area of the defects existing in the region of an ultrasonic beam on a welded surface and an artificial defect, and a quality control of the pipe body is performed based on the defect detection threshold value. An equivalent defect diameter is determined from the defect density on the welded surface of the welded portion of the pipe body in a pipe axis direction and the area of the ultrasonic beam on the welded surface based on the total area of the defects existing in the region of the ultrasonic beam, and the defect detection threshold value is determined based on the equivalent defect diameter and the signal intensity difference of the artificial defect.

    摘要翻译： 对管体1的焊接部2进行超声波探伤，根据存在于焊接面上的超声波束区域的缺陷的总面积与信号强度的差异，确定缺陷检测阈值， 基于缺陷检测阈值进行人造缺陷和管体的质量控制。 根据存在于该区域中的缺陷的总面积，从管轴方向的管体的焊接面的焊接面的缺陷密度和焊接面上的超声波束的面积确定等效的缺陷直径 ，并且基于人造缺陷的等效缺陷直径和信号强度差来确定缺陷检测阈值。

    ULTRASONIC FLAW DETECTION APPARATUS AND ULTRASONIC FLAW DETECTION METHOD FOR PIPE
    8.
    发明申请
    ULTRASONIC FLAW DETECTION APPARATUS AND ULTRASONIC FLAW DETECTION METHOD FOR PIPE 有权
    超声波检测装置及超声波检测方法

    公开(公告)号：US20100101326A1

    公开(公告)日：2010-04-29

    申请号：US12449744

    申请日：2007-05-18

    申请人： Yukinori Iizuka ,  Kazuhito Kenmochi ,  Hiroyasu Yokoyama ,  Tomohiro Inoue ,  Shigeto Sakashita

    发明人： Yukinori Iizuka ,  Kazuhito Kenmochi ,  Hiroyasu Yokoyama ,  Tomohiro Inoue ,  Shigeto Sakashita

    IPC分类号： G01N29/04

    CPC分类号： G01N29/12 ,  G01N29/043 ,  G01N29/262 ,  G01N2291/0289 ,  G01N2291/044 ,  G01N2291/106 ,  G01N2291/2634 ,  G01N2291/2675

    摘要： The present invention has a structure capable of detecting the scattered-type penetrator having oxides each with the size of several μm sparsely and widely dispersed. Specifically, the structure includes a wave transmission unit 6 for transmitting an ultrasonic wave to the welded surface of the welded portion 2 in a pipe axial direction of the pipe 1 such that the beam width of a transmission beam 8 is brought into a range from 0.5 mm to 2.5 mm, and a wave reception unit 7 for receiving at least a portion of the reflection wave (reception beam 9) at the welded surface. The wave transmission unit 6 and the wave reception unit 7 include transmission/reception units formed of different groups of transducer elements on at least one or more array probes 5 arranged in the circumferential direction of the pipe.

    摘要翻译： 本发明具有能够检测具有疏散且广泛分散的几μm的尺寸的氧化物的散射型穿透器的结构。 具体地，该结构包括：波导传输单元6，用于在管1的管轴方向上向焊接部2的焊接面发送超声波，使得透射束8的光束宽度为0.5 以及用于在焊接面处接收反射波（接收光束9）的至少一部分的波接收部7。 波发送单元6和波接收单元7包括在沿管道的周向布置的至少一个或多个阵列探针5上由不同组的换能器元件形成的发送/接收单元。

    Method for manufacturing a laser welded steel pipe
    9.
    发明授权
    Method for manufacturing a laser welded steel pipe 有权
    激光焊接钢管制造方法

    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。

    METHOD FOR MANUFACTURING A LASER WELDED STEEL PIPE
    10.
    发明申请
    METHOD FOR MANUFACTURING A LASER WELDED STEEL PIPE 有权
    用于制造激光焊接钢管的方法

    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。