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    METHOD AND APPARATUS FOR MANUFACTURING UOE STEEL PIPE
    231.
    发明公开
    METHOD AND APPARATUS FOR MANUFACTURING UOE STEEL PIPE 审中-公开
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES UOE-STAHLROHRS

    公开(公告)号：EP2554286A4

    公开(公告)日：2017-06-14

    申请号：EP11759587

    申请日：2011-03-25

    Applicant: NIPPON STEEL & SUMITOMO METAL CORP

    Inventor： WATANABE YASUSHI

    IPC: B21C37/08 ,  B21C37/083 ,  B21C51/00 ,  B23K31/00

    CPC classification number: B23K26/282 ,  B21C37/0826 ,  B21C51/00 ,  B23K31/027 ,  B23K33/006 ,  B23K2201/10 ,  B23K2203/04 ,  G01B11/245 ,  G01B11/2522 ,  Y10T29/49826

    Abstract: It is determined whether or not the shape of a bevel formed in an edge part of a blank steel plate of a UOE steel pipe by an edge planer is normal, and when needed, the need for modifying the shape of the bevel is quickly outputted to the operator. When a UOE steel pipe 30 is manufactured by subjecting a thick plate 7 provided with bevels 8a and 8b in edge parts 7a and 7b to C-pressing, U-pressing, and O-pressing to be formed into an open pipe 13, and butting and welding the bevels 8a and 8b of the open pipe 13 together, the shape of the bevels 8a and 8b of the thick plate 7 is measured prior to the C-pressing by the bevel-shape measurement device 6, and determination is made based on the measurement result whether there is a need for modifying the shape of the bevels 8a and 8b of the thick plate 7 before the C-pressing is started.

    Abstract translation: 判断利用平面铣刀在UOE钢管的空白钢板的端部形成的斜面的形状是否正常，在需要时，是否需要将斜面的形状变更为 运营商。 当UOE钢管30通过在边缘部分7a和7b中对设置有斜面8a和8b的厚板7进行C压，U压和O压以形成开口管13以及对接 并将开口管13的斜面8a和8b焊接在一起，在由斜角形状测量装置6进行C压之前测量厚板7的斜面8a和8b的形状，并基于 测量结果是否需要在C压制开始之前改变厚板7的斜面8a和8b的形状。

    LASER CONTROLLED INTERNAL WELDING MACHINE FOR PIPELINES
    234.
    发明公开
    LASER CONTROLLED INTERNAL WELDING MACHINE FOR PIPELINES 审中-公开
    LASERGESTEUERTE INTERNE SCHWEISSMASCHINEFÜRROHRLEITUNGEN

    公开(公告)号：EP2999569A1

    公开(公告)日：2016-03-30

    申请号：EP14800710.7

    申请日：2014-05-22

    Applicant: CRC-Evans Pipeline International, Inc.

    Inventor： RAJAGOPALAN, Shankar ,  MALLICK, Siddharth ,  BOUCHE, Jose C.

    IPC: B23K37/053

    CPC classification number: B23K9/0284 ,  B23K9/0286 ,  B23K9/0956 ,  B23K9/1274 ,  B23K37/0276 ,  B23K37/0531 ,  B23K37/0533 ,  B23K2201/10

    Abstract: The present invention is directed to a system for welding together segments of a pipeline. The system includes an external alignment mechanism for externally supporting and manipulating the orientation of pipe segments in order to align relative segments. The system also includes an internal welding mechanism for applying a weld to an interior face joint of the two abutted pipe segments. The internal welding mechanism including a torch for applying a weld, a laser for tracking the weld profile and guiding an articulating head of the torch, and a camera for visually inspecting the weld after the weld is applied.

    Abstract translation: 本发明涉及一种将管道的段焊接在一起的系统。 该系统包括用于外部支撑和操纵管段的取向以便对准相对段的外部对准机构。 该系统还包括用于将焊缝施加到两个邻接的管段的内表面接头的内部焊接机构。 内部焊接机构包括用于施加焊接的焊炬，用于跟踪焊接轮廓的激光器和引导焊炬的铰接头，以及用于在施加焊接之后目视检查焊缝的照相机。

    PIPELINE AND MANUFACTURING METHOD THEREOF
    235.
    发明公开
    PIPELINE AND MANUFACTURING METHOD THEREOF 有权
    ROHRLEITUNG UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP2808415A4

    公开(公告)日：2016-01-13

    申请号：EP13740715

    申请日：2013-01-28

    Applicant: NIPPON STEEL & SUMITOMO METAL CORP

    Inventor： NAGATA YUKINOBU ,  TSURU EIJI ,  SHINOHARA YASUHIRO

    IPC: C22C38/14 ,  B23K9/028 ,  B23K31/02 ,  B23K101/10 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  F16L13/02 ,  F16L13/04

    CPC classification number: B23K31/02 ,  B23K2201/10 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  F16L13/02 ,  F16L13/04 ,  Y10T428/12

    Abstract: A pipeline is a pipeline having plural weld zones in which ends of plural steel pipes are joined by welding, the plural steel pipes are produced from plural charges of molten steel having one or more steel compositions; yield point elongation is not present on a stress-strain curve obtained when stress is applied in a longitudinal direction of each of the steel pipes; a thickness of each of the steel pipes t (mm) and an average pipe outside-diameter D (mm) satisfy t/D×100‰¤6; and in the plurality of the weld zones, ”YS which is a yield strength difference between one steel pipe and the other steel pipe that are welded to each other (MPa), and YR representing a yield ratio that is a ratio of the yield strength to tensile strength of a pipe having a lower yield strength out of the one steel pipe and the other steel pipe, satisfy ”YS‰¤-1.75×YR+230.

    Abstract translation: 管道是具有多个焊接区域的管道，其中多个钢管的端部通过焊接接合，多个钢管由具有一种或多种钢组合物的钢水的多个电荷产生; 在每个钢管的纵向施加应力时获得的应力 - 应变曲线上不存在屈服点伸长率; 每个钢管t（mm）和平均管外径D（mm）的厚度满足t / D×100‰¤6; 并且在多个焊接区域中，作为彼此焊接的一个钢管和另一个钢管之间的屈服强度差的YS（MPa），YR表示作为屈服强度 对于一个钢管和另一个钢管中具有较低屈服强度的管的拉伸强度满足“YS‰¬-1.75×YR + 230”。

    METHOD FOR PRODUCING PLASMA-SHIELDED ELECTRIC RESISTANCE WELDED STEEL PIPE
    237.
    发明公开
    METHOD FOR PRODUCING PLASMA-SHIELDED ELECTRIC RESISTANCE WELDED STEEL PIPE 有权
    生产等离子屏蔽电阻焊钢管的方法

    公开(公告)号：EP2891537A1

    公开(公告)日：2015-07-08

    申请号：EP12883858.8

    申请日：2012-08-31

    Applicant: Nippon Steel & Sumitomo Metal Corporation

    Inventor： HAMATANI, Hideki ,  WATANABE, Fuminori ,  TSUKAKOSHI, Kazumoto ,  MIZUHASHI, Nobuo ,  ASANO, Takuya ,  MIURA, Takao ,  MOTOYOSHI, Takashi ,  YAMAMOTO, Kazuto ,  TANAKA, Kimiharu

    IPC: B23K13/06

    CPC classification number: B23K13/06 ,  B23K11/0006 ,  B23K11/0873 ,  B23K11/36 ,  B23K13/046 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2203/04

    Abstract: To utilize electric resistance welded steel pipes as high-grade steel pipes such as oil well pipes, the qualities of the electric resistance welded steel pipes, in particular, the components of a plasma operating gas in plasma-shielded welding were fundamentally reexamined to reduce penetrator defects. As a result, an effect achieved by adding no or a minor amount of hydrogen, said effect having been ignored by conventional findings, was newly discovered and an optimum plasma operating gas composition was successfully obtained. Provided is a method for producing a plasma-shielded electric resistance welded steel pipe, said method comprising, in shaping a steel sheet into a pipe and welding end faces thereof, applying a voltage to a plasma operating gas that is supplied between a cathode and an anode of a plasma gun to generate a plasma and then shielding the vicinity of a weld part by the plasma, characterized in that the components of the plasma operating gas comprise, in terms of vol%, 70-90% inclusive of N 2 and the balance being Ar and inevitable impurities. Also provided is a method for producing a plasma-shielded electric resistance welded steel pipe, characterized in that the plasma operating gas contains 1 vol% or less of H 2 .

    Abstract translation: 为了将电阻焊钢管用作油井管等高级钢管，基本上重新检查了电阻焊钢管的质量，特别是等离子体保护焊接中的等离子体操作气体的成分，以减少穿透器 缺陷。 结果，新发现了通过添加无或少量氢而获得的效果，所述效果已被常规发现忽略，并且成功获得了最佳等离子体操作气体组成。 本发明提供一种等离子体保护电阻焊钢管的制造方法，其特征在于，在将钢板成形为管状并对其端面进行焊接时，对供给到阴极与阴极之间的等离子体工作气体施加电压 等离子体枪的阳极以产生等离子体，然后通过等离子体屏蔽焊接部分的附近，其特征在于，等离子体工作气体的组分按体积％计包含70-90％（包括N2）和余量 是Ar和不可避免的杂质。 还提供一种等离子体保护电阻焊钢管的制造方法，其特征在于，等离子体工作气体含有1体积％以下的H 2。

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