TUBULAR OBJECT ULTRASONIC TEST DEVICE AND ULTRASONIC TEST METHOD
    21.
    发明公开
    TUBULAR OBJECT ULTRASONIC TEST DEVICE AND ULTRASONIC TEST METHOD 审中-公开
    ULTRASCHALLTESTVORRICHTUNGFÜRRÖHRENFÖRMIGESOBJEKT UND ULTRASCHALLTESTVERFAHREN

    公开(公告)号:EP2124045A4

    公开(公告)日:2014-12-03

    申请号:EP07744096

    申请日:2007-05-18

    Applicant: JFE STEEL CORP

    Abstract: 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.

    Abstract translation: 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 以及用于接收焊接面的反射波(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。

    内面樹脂ライニング薄肉鋼管およびその製造方法

    公开(公告)号:JP2019090517A

    公开(公告)日:2019-06-13

    申请号:JP2017221416

    申请日:2017-11-17

    Applicant: JFE STEEL CORP

    Abstract: 【課題】良好なねじ部(鋼管外面のねじ形状が規定のJIS形状であり、かつ鋼管内面の凹凸量が小さい)を備えた内面樹脂ライニング薄肉鋼管およびその製造方法を提供する。【解決手段】JIS G 3452の配管用炭素鋼管に対して、外径が同じで、厚さが100%未満78%以上であり、鋼管内面に樹脂ライニングを有し、鋼管端部に、鋼管外面にJIS B 0202またはJIS B 0203に基づくねじを有するねじ部を備え、前記ねじ部における鋼管内面の凹凸量が最大高さRzで200.0μm以下であることを特徴とする内面樹脂ライニング薄肉鋼管。【選択図】図1

    レーザ溶接良否判定装置及びレーザ溶接良否判定方法
    23.
    发明专利
    レーザ溶接良否判定装置及びレーザ溶接良否判定方法 有权
    激光焊接质量测定装置和激光焊接质量测定方法

    公开(公告)号:JP2015054343A

    公开(公告)日:2015-03-23

    申请号:JP2013189594

    申请日:2013-09-12

    Abstract: 【課題】レーザ溶接部において貫通溶接状態が維持されているか否かを検出してレーザ溶接状態の良否を判定することができるレーザ溶接良否判定装置及びレーザ溶接良否判定方法を提供すること。【解決手段】鋼帯1の両縁を突き合わせ、この突合せ部にレーザ光7を照射して溶接した溶接管のレーザ溶接部5の良否判定を行うレーザ溶接良否判定装置であって、レーザ溶接部5のレーザ溶接貫通側を連続して撮像する撮像部8と、撮像部8が撮像した画像からレーザ溶接貫通に伴う噴出部の特徴量を算出する特徴量算出部11と、連続して取得される前記画像の所定領域内の前記特徴量の値が所定継続時間以上、所定値以下となる場合にレーザ溶接部5の溶接不良が発生したと判定する溶接良否判定部12と、前記溶接不良の発生を含む溶接良否状態を表示出力する表示部13と、を備える。【選択図】図1

    Abstract translation: 要解决的问题:提供一种能够通过检测在激光焊接部件上是否保持穿透焊接状态来确定激光焊接状态的质量的激光焊接质量确定装置和激光焊接质量确定方法。解决方案:A 激光焊接质量确定装置,其通过使钢带1的两个边缘彼此抵接并且用激光束7照射抵接部来进行焊接的焊接管的激光焊接部5的质量确定,包括:成像部8 其连续地对激光焊接部5的激光焊接穿透侧进行成像; 特征量计算部11,其从由摄像部8拍摄的图像计算伴随着激光焊接穿透的喷射部的特征量; 焊接质量确定部分12,其确定当连续增加的图像的规定区域中的特征量的值在预定持续时间或更长时间内达到预定值或更小时,发生激光焊接部分5的焊接不良; 以及显示和输出包含焊接不良的焊接质量状态的显示部13。

    電縫管の超音波探傷装置及び方法ならびに品質保証方法
    24.
    发明专利
    電縫管の超音波探傷装置及び方法ならびに品質保証方法 有权
    用于超声波检测电阻焊管和质量保证方法的装置和方法

    公开(公告)号:JP2015004669A

    公开(公告)日:2015-01-08

    申请号:JP2014100257

    申请日:2014-05-14

    Abstract: 【課題】溶接シーム部に存在する欠陥からの反射に頼らずにシーム検出を行い精度良く探傷が可能な、電縫管の超音波探傷装置及び方法ならびに品質保証方法を提供することを課題とする。【解決手段】電縫管を溶接した後、ビード切削機、溶接シーム部を撮像するシーム検出部、および超音波探触子を備えたセンサヘッドの順で配置されたラインにおいて、センサヘッドの設置位置の直前または直後にビード切削幅に対するビード位置を検出するビード切削位置検出部を設置してビード位置を演算し、溶接シーム部の熱画像に基づきシーム位置を演算し、ビード切削位置検出部の設置位置までシーム位置が通過に要する遅延時間を演算し、これらに基づき、センサヘッドの移動量を算出してセンサヘッドを移動しながら溶接シーム部の欠陥を超音波探傷する。【選択図】図2

    Abstract translation: 要解决的问题:提供一种能够通过独立于存在于焊缝部分中的缺陷的反射进行接缝检测而能够精确地检测缺陷的电阻焊管的超声波探伤的装置和方法,并且提供 质量保证方法。解决方案:在焊接电焊焊接管之后,在其中设置有一个焊道切割机,用于成像焊缝部分的接缝检测单元和设置有超声波探头的传感器头的管线 通过在传感器头的安装位置正前方或刚好位于安装位置之后安装用于检测胎圈位置的胎圈切割位置检测单元来计算胎圈位置,在此基础上计算接缝位置 计算焊缝部分的热图像,并且计算通过到胎圈切割位置检测单元的安装位置的接缝位置所需的延迟时间。 基于这些结果,在通过计算传感器头的移动量来移动传感器头的同时进行焊缝部分的缺陷的超声波探伤。

    Heat-treatment method of electric resistance welded steel pipe
    25.
    发明专利
    Heat-treatment method of electric resistance welded steel pipe 有权
    电阻焊钢管热处理方法

    公开(公告)号:JP2009173985A

    公开(公告)日:2009-08-06

    申请号:JP2008012254

    申请日:2008-01-23

    CPC classification number: Y02P10/253

    Abstract: PROBLEM TO BE SOLVED: To overcome the difficulty of efficiently heating an electric resistance welded steel pipe across its entire wall thickness to a target temperature in a conventional heat-treatment (seam annealing) method of a welded part of the pipe. SOLUTION: A plurality of stands 15, each of which having induction coils 11a and 13a disposed at both inside and outside of the pipe 5, is disposed in a direction in which the pipe is passed, and the welded part is subjected to induction heating from both inside and outside of the pipe. At a stand between a first stand and a stand other than the last stand, the welded part is heated until the inside and outside temperatures of the welded part at the outlet side of the stand exceed an Ac 3 transformation temperature, and at the following stands, the welded part is heated so that the inside and outside temperatures of the welded part are kept at a prescribed temperature higher than the Curie point and that the center of thickness of the welded part reaches a target temperature. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:为了克服在管道的焊接部分的常规热处理(接缝退火)方法中将电阻焊钢管在其整个壁厚上有效加热到目标温度的难度。 解决方案:在管5的内部和外部设置有各自具有感应线圈11a和13a的多个支架15沿管道通过的方向设置,并且焊接部件经受 来自管内外的感应加热。 在第一支架和不同于最后一个支架之间的支架之间的支架上,加热焊接部件,直到在支架出口侧的焊接部件的内外温度超过Ac 3 转换 温度,并且在随后的台架上,焊接部件被加热,使得焊接部件的内部和外部温度保持在高于居里点的规定温度,并且焊接部件的厚度中心达到目标温度。 版权所有(C)2009,JPO&INPIT

    Method for manufacturing electric resistance welded tube excellent in buckling resistance
    26.
    发明专利
    Method for manufacturing electric resistance welded tube excellent in buckling resistance 有权
    电阻电阻优良的耐电弧焊接方法

    公开(公告)号:JP2009119479A

    公开(公告)日:2009-06-04

    申请号:JP2007293567

    申请日:2007-11-12

    Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an electric resistance welded tube that is excellent in buckling resistance and hard to be affected by buckling due to an earthquake or a frozen soil.
    SOLUTION: The uppermost point 12 of the groove bottom of the lower roll of each fin pass stand is positioned higher than an extension line 15A formed by extending, to the downstream side, a downhill 15 of the bottom position of a material that is just before a first fin pass stand, and is separated more upward from the extension line 15A as the uppermost point 12 goes further to rear stages. Further, a downhill of the outer peripheral bottom position of the material in a squeeze is preferably positioned on or above an extension line 15B formed by extending, to the downstream side, a downhill of the bottom position of the material just after a final fin pass stand.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种耐弯曲性优异并且难以受到地震或冻土的屈曲影响的电阻焊管的制造方法。 解决方案:每个翅片通过支架的下辊的凹槽底部的最上点12定位成高于延伸线15A,延伸线15A形成为延伸到下游侧的材料的底部位置的下坡15, 正好在第一个翅片通过支架之前,并且当最上点12进一步到后级时,从延长线15A向上分离。 此外,挤压材料的外周底部位置的下坡优选地位于延伸线15B的上方或上方,该延长线15B通过在最后的翅片通过之后向下游侧延伸材料的底部位置的下坡 站。 版权所有(C)2009,JPO&INPIT

    Manufacturing method of electric resistance welded tube excellent in buckling resistance property
    27.
    发明专利
    Manufacturing method of electric resistance welded tube excellent in buckling resistance property 审中-公开
    电阻焊管的制造方法优良的耐磨性能

    公开(公告)号:JP2009285708A

    公开(公告)日:2009-12-10

    申请号:JP2008142612

    申请日:2008-05-30

    Abstract: PROBLEM TO BE SOLVED: To solve a problem of not sufficiently improving buckling resistance property of an electric resistance welded tube by conventional technology.
    SOLUTION: In the manufacturing method of the electric resistance welded tube, a steel strip is roll formed while it is being passed, both abutted ends of the strip in a width direction are electric-resistance-welded to form a tube 10, heat treatment is applied to an electric resistance welded area, and then the tube is straightened. When straightening the tube, a rotary straightening machine 8 is used wherein distance between the stands of the rotary straightening machine is set to satisfy the range defined by a formula: L≠D×π×tanα×A, wherein L is the distance between the strands of the rotary straightening machine, D is the outer diameter of the tube, π is a circular ratio, α is the roll inclination angle of the rotary straightening machine, and A is a number within a range of (N/2)±0.025.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 解决的问题:通过现有技术来解决不能充分提高电阻焊接管的耐压特性的问题。 解决方案:在电阻焊管的制造方法中,钢带在通过时被轧制成形,并且宽度方向上的条带的邻接端被电阻焊以形成管10, 对电阻焊区域进行热处理,然后使管被拉直。 在使管矫直时,使用旋转矫正机8,其中旋转矫正机的立柱之间的距离设定为满足由下式定义的范围:L≠D×π×tanα×A,其中L是 旋转矫直机的线束,D是管的外径,π是圆周比,α是旋转矫直机的辊倾角,A是(N / 2)±0.025的范围内的数 。 版权所有(C)2010,JPO&INPIT

    Method for manufacturing electric resistance welded tube excellent in characteristic of weld zone
    28.
    发明专利
    Method for manufacturing electric resistance welded tube excellent in characteristic of weld zone 审中-公开
    焊接特性优良的电阻焊管制造方法

    公开(公告)号:JP2009119484A

    公开(公告)日:2009-06-04

    申请号:JP2007293855

    申请日:2007-11-13

    Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an electric resistance welded tube excellent in characteristics of a weld zone, in which excellent weld quality is maintained, by properly giving a tapered shape to the width direction end part of a strip material before electric resistance welding when manufacturing the electric resistance welded tube by abutting right and left end parts in the width direction of the strip material on each other and subjecting them to electric resistance welding.
    SOLUTION: After giving a tapered shape to the upper and/or lower face side of either of right and left end parts in the width direction of a strip material 20, electric resistance welding is conducted.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 解决的问题:提供一种制造焊接区特性优异的电阻焊管的方法,其中保持良好的焊接质量,通过适当地向带材的宽度方向端部提供锥形 在通过使带状材料的宽度方向上的左右端部彼此抵接并对其进行电阻焊接来制造电阻焊接管时,进行电阻焊接前的材料。 解决方案:在带材20的宽度方向上的左右端部中的任一个的上表面和/或下表面上形成锥形形状之后,进行电阻焊接。 版权所有(C)2009,JPO&INPIT

    Pipe end joint position detection apparatus of resin-coated pipe and method
    29.
    发明专利
    Pipe end joint position detection apparatus of resin-coated pipe and method 有权
    树脂涂层管和管道管接头位置检测装置

    公开(公告)号:JP2011043406A

    公开(公告)日:2011-03-03

    申请号:JP2009191773

    申请日:2009-08-21

    Abstract: PROBLEM TO BE SOLVED: To provide a pipe end joint position detection apparatus for correcting an error in a detection position due to the occurrence of a step generated in a joint position. SOLUTION: The pipe end joint position detection apparatus of a resin-coated pipe 3 comprises: an eddy current detector 1 for detecting the pipe end joint position 4 by using an eddy current after a resin is coated; a step quantity measurement instrument 2 for measuring the step quantity 5 generated at a pipe end before and after the pipe end joint position 4; and a correction calculator 8 for correcting a detection position signal of the pipe end joint position 4 only if a measurement result of the step quantity 5 is a fixed quantity or more. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于校正由于在关节位置产生的台阶的发生而导致的检测位置误差的管端关节位置检测装置。 < P>解决方案:树脂涂布管3的管端接头位置检测装置包括:涡流检测器1,用于在涂布树脂之后通过使用涡流来检测管端接头位置4; 用于测量在端部关节位置4之前和之后在管端产生的台阶数量5的步进量测量仪器2; 以及校正计算器8,用于仅在步数5的测量结果为固定量或更多时才校正管端接头位置4的检测位置信号。 版权所有(C)2011,JPO&INPIT

    Method for manufacturing laser-welded steel pipe
    30.
    发明专利
    Method for manufacturing laser-welded steel pipe 有权
    制造激光焊接钢管的方法

    公开(公告)号:JP2010029938A

    公开(公告)日:2010-02-12

    申请号:JP2009148610

    申请日:2009-06-23

    Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a laser-welded steel pipe stably in a high yield by highly and precisely determining a laser welding situation and by changing a welding condition on the basis of the determined result. SOLUTION: The irradiating region of a laser beam irradiated from an outer face side at an edge portion is monitored from the inner face side of an open pipe. When a key hole penetrating to the inner face side of the open pipe is observed, the welding condition of the laser beam is continuously kept. When the keyhole penetrating to the inner face side of the open pipe is not observed, the welding condition of the laser beam is changed. Thus, the welding operation is performed while the keyhole penetrating through the open pipe from the outer face side to the inner face side is formed in the irradiating region of the laser beam. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种通过高精度地确定激光焊接状况并且基于确定的结果改变焊接条件来以高产率稳定地制造激光焊接钢管的方法。 解决方案:从开口管的内表面侧监测从边缘部分的外表面侧照射的激光束的照射区域。 当观察到穿透开口管的内表面侧的键孔时,连续地保持激光束的焊接状态。 当没有观察到穿透开口管内表面的锁孔时,激光束的焊接条件发生变化。 因此,在激光束的照射区域中形成从外表面侧向内表面侧穿透开口管的锁孔,进行焊接作业。 版权所有(C)2010,JPO&INPIT

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