WELDING METHOD FOR SHELL AND TUBE
    2.
    发明申请
    WELDING METHOD FOR SHELL AND TUBE 有权
    壳和管的焊接方法

    公开(公告)号:US20160288240A1

    公开(公告)日:2016-10-06

    申请号:US15082099

    申请日:2016-03-28

    IPC分类号: B23K11/093

    摘要: A method for welding tubes to tube insertion holes formed through tube sheets of a shell and tube heat exchanger, including forming ring-shaped tube sheet grooves, spaced from the tube insertion holes by a designated distance in the outer circumferential direction, on one surface of the tube sheet at the shell side, inserting tube joint members, having a cylindrical shape with the same diameter as that of the tubes, into the tube insertion holes of the tube sheet, manufacturing ring wires by cutting a welding wire having a long length into pieces having a designated length and bending the pieces into a ring shape so as to be inserted into the outer circumferences of the tubes, inserting the ring wire into the outer circumference of one end of the tube, inserting the one end of the tube into the tube sheet in one direction such that the one end of the tube contacts one end of the tube joint member facing the one end of the tube and is located within the recessed distance range of the tube sheet groove, performing tube side welding by welding the other end of the tube joint member to the other surface of the tube sheet at the tube side, and performing shell side welding by inserting a welding torch into the tube joint member and thus welding the one end of the tube joint member, the one end of the tube and the joint part to the one surface of the tube sheet at the shell side using the ring wire as a filler metal.

    摘要翻译: 一种用于将管道焊接到管状插管孔的方法,该插管孔通过管壳式热交换器的管板形成,包括在管的一个表面上形成与管插入孔间隔一定距离的环形管板槽 在壳侧的管板,将具有与管直径相同的圆筒形的管接头部件插入管板的管插入孔中,通过将具有长长度的焊丝切割成制造环形线 具有指定长度并将片弯曲成环形以便插入管的外周的片,将环线插入管的一端的外周,将管的一端插入 管板在一个方向上使得管的一端接触管接头构件的面向管的一端的一端,并且位于管的凹入距离范围内 通过将管接头构件的另一端焊接到管侧的管板的另一个表面进行管侧焊接,并通过将焊炬插入管接头构件中进行壳侧焊接,从而焊接 管接头构件的一端,管的一端和接头部分使用环形线作为填充金属而在壳侧的一个表面。

    EXHAUST GAS PURIFICATION APPARATUS AND METHOD FOR INCREASING CORROSION RESISTANCE OF EXHAUST GAS PURIFICATION APPARATUS
    3.
    发明申请
    EXHAUST GAS PURIFICATION APPARATUS AND METHOD FOR INCREASING CORROSION RESISTANCE OF EXHAUST GAS PURIFICATION APPARATUS 审中-公开
    排气净化装置和排气净化装置耐腐蚀性的方法

    公开(公告)号:US20140260204A1

    公开(公告)日:2014-09-18

    申请号:US14292688

    申请日:2014-05-30

    发明人: Satoshi SUGIYAMA

    IPC分类号: F01N3/20

    摘要: An exhaust gas purification apparatus includes a SCR converter selectively reducing and purifying NOx in exhaust gas upon being supplied with ammonia generated from urea aqueous solution and an injection nozzle injection-supplying the urea aqueous solution on exhaust gas upstream side of the SCR converter. At least a part of an exhaust pipe located between the injection nozzle and the SCR converter has a double-pipe structure including inner and outer pipes, each having a welded portion, and the welded portion of the outer pipe was welded from an inside of the outer pipe. Thus, the outer pipe has fine welded portion on an inner peripheral surface where a welding temperature is high and the coarse welded portion on an outer peripheral surface where the welding temperature is low, resulting in an ordered atomic arrangement and thus improved corrosion resistance of the inner peripheral surface, which may be exposed to ammonia.

    摘要翻译: 废气净化装置包括:SCR转炉,其在供给由尿素水溶液产生的氨的废气中选择性地还原和净化NOx;以及喷射喷嘴,将所述尿素水溶液注入到所述SCR转炉的废气上游侧。 位于注射喷嘴和SCR转炉之间的排气管的至少一部分具有包括内管和外管的双管结构,每个具有焊接部分,并且外管的焊接部分从 外管。 因此,外管在焊接温度高的内周面上具有良好的焊接部分和焊接温度低的外周面上的粗糙焊接部分,导致有序的原子排列,从而提高了耐腐蚀性 内周表面,其可能暴露于氨。

    Preserving apparatus for welded joint portion and preserving method therefor
    5.
    发明授权
    Preserving apparatus for welded joint portion and preserving method therefor 有权
    焊接接头部分保存装置及其保存方法

    公开(公告)号:US08450631B2

    公开(公告)日:2013-05-28

    申请号:US12296546

    申请日:2006-04-11

    申请人: Seiichi Sato

    发明人: Seiichi Sato

    IPC分类号: B23K9/04 B23K9/173 B23K15/06

    摘要: A preserving apparatus for preserving welded joint portions 7, 8 by deposit welding on the inner surface of the welded joint portions 7, 8, in which a nozzle 4 and a pipe 5 supported under water are joined, the apparatus having: a seal member 9 that is disposed in front and behind the welded joint portions 7, 8 to be deposit welded within the nozzle 4 and pipe 5, and serves to demarcate and form a closed operation area A within the nozzle 4 and pipe 5; water drainage means 12 for draining the inside of the operation area A demarcated and formed by the seal member 9 and obtaining a gas atmosphere therein; and welding means 13 for deposit welding on the inner surface of the welded joint portions 7, 8 within the operation area A in which the gas atmosphere has been created.

    摘要翻译: 一种保存装置,用于通过在焊接接头部分7,8的内表面上通过沉积焊接来保持焊接接头部分7,8,其中喷嘴4和支撑在水下的管道5接合,该设备具有:密封部件9 设置在焊接接头部分7,8的前面和后面,以在喷嘴4和管道5中沉积焊接,并用于在喷嘴4和管道5内划定并形成封闭的操作区域A. 排水装置12,用于排出由密封构件9划分并形成的操作区域A的内部,并在其中获得气体气氛; 以及在已经形成气体气氛的操作区域A中的焊接接头部分7,8的内表面上的用于沉积焊接的焊接装置13。

    Hybrid laser arc welding system and method for railroad tank car fabrication
    6.
    发明授权
    Hybrid laser arc welding system and method for railroad tank car fabrication 有权
    混合式激光焊接系统及其制作方法

    公开(公告)号:US08324527B2

    公开(公告)日:2012-12-04

    申请号:US12817539

    申请日:2010-06-17

    IPC分类号: B23K26/00 B23K9/00 B23K33/00

    摘要: A system for welding a tub of a railroad tank car includes a manipulator boom adapted to move with respect to the interior surface of the tank shell. A hybrid laser arc welding head mounted to the manipulator. A supplemental gas metal arc welding head includes dual wires of welding material and is mounted to the manipulator adjacent to the hybrid laser arc welding head. An inductive heating coil is mounted adjacent to the supplemental gas metal arc welding head. The hybrid laser arc welding head welds a seam of the railroad tank car shell with the supplemental gas metal arc welding head following to generally complete filling of a resulting weld joint with welding metal. The supplemental gas metal arc welding head is followed with the inductive heating coil to provide heat to normalize the resulting weld joint.

    摘要翻译: 用于焊接铁路车厢的桶的系统包括适于相对于罐壳的内表面移动的操纵臂。 安装在机械手上的混合激光电弧焊头。 辅助气体金属电弧焊头包括焊接材料的双线,并且安装在与混合式激光电弧焊接头相邻的操纵器上。 感应加热线圈安装在辅助气体金属电弧焊头附近。 混合式激光焊接头用补充气体金属电弧焊头焊接铁路罐车壳的接缝,一般用焊接金属填充所得的焊接接头。 补充气体金属电弧焊头后跟感应加热线圈,以提供热量以使所得到的焊接接头标准化。

    Pipe/Connector Weld Joint, and Methods of Welding Same

    公开(公告)号:US20080264908A1

    公开(公告)日:2008-10-30

    申请号:US12168335

    申请日:2008-07-07

    IPC分类号: B23K31/02

    摘要: The present invention is directed to a method for welding a pipe section and a connector, wherein each of the pipe and connector have inner and outer beveled surfaces and the joint is comprised of an angular alignment land. In one embodiment, an outer beveled surface on the pipe and an inner beveled surface on the connector cooperate to define the angular alignment land. In yet another illustrative embodiment, the inner beveled surface of the connector and the outer beveled surface of the pipe have a bevel angle of approximately 30 degrees, while the outer beveled surface of the connector and the inner beveled surface of the pipe have a beveled angle of approximately 45 degrees.

    Pipe/connector weld joint, and methods of welding same
    8.
    发明申请
    Pipe/connector weld joint, and methods of welding same 有权
    管/连接器焊接接头及其焊接方法

    公开(公告)号:US20060191874A1

    公开(公告)日:2006-08-31

    申请号:US10546348

    申请日:2004-07-20

    申请人: Richard Holdren

    发明人: Richard Holdren

    IPC分类号: B23K9/00

    摘要: The present invention is directed to a pipe section (220) and a connector (400) that are adapted to be welded together, wherein each of the pipe and connector have inner and outer beveled surfaces and the joint is comprised of an angular alignment land (60). In one embodiment, an outer beveled surface on the pipe and an inner beveled surface on the connector cooperate to define the angular alignment land (60). In yet another illustrative embodiment, the inner beveled surface of the connector and the outer beveled surface of the pipe have a bevel angle of approximately 30 degrees, while the outer beveled surface of the connector and the inner beveled surface of the pipe have a beveled angle of approximately 45 degrees.

    摘要翻译: 本发明涉及适于焊接在一起的管段(220)和连接器(400),其中管和连接器中的每一个具有内和外斜面,并且接头包括角度对准区域 60)。 在一个实施例中,管上的外斜面和连接器上的内斜面表示配合以限定角度对准平台(60)。 在另一个说明性实施例中,连接器的内斜面和管的外斜面具有大约30度的斜角,而连接器的外斜面和管的内倾斜表面具有斜角 约45度。

    Device for welding inside a tube of small diameter
    9.
    发明授权
    Device for welding inside a tube of small diameter 失效
    用于在小直径管内焊接的装置

    公开(公告)号:US4821943A

    公开(公告)日:1989-04-18

    申请号:US215972

    申请日:1988-07-07

    摘要: The drive mechanism for driving the welding head (17) in rotation in the tube is arranged in a motor casing (18) inserted between first and second sections (16a, 16b) of a flexible tubing. The translational movements of the welding head (17) for positioning it in the tube (3) are provided by the sections (16a) of the flexible tubing. The transmission of rotation between the drive mechanism and the welding head (17) is provided by a flexible transmission member arranged in the second section (16b) of the flexible tubing. The device is intended in particular for welding a small repair liner at any height in a steam generator tube of a pressurized-water nuclear reactor.

    摘要翻译: 用于在管中旋转的用于驱动焊接头(17)的驱动机构布置在插入柔性管的第一和第二部分(16a,16b)之间的马达壳体(18)中。 用于将其定位在管(3)中的焊接头(17)的平移运动由柔性管的部分(16a)提供。 驱动机构和焊接头(17)之间的旋转传递由布置在柔性管的第二部分(16b)中的柔性传动部件提供。 该装置特别用于在加压水核反应堆的蒸汽发生器管中的任何高度处焊接小修理衬里。

    Bearing connector for rotary tool
    10.
    发明授权
    Bearing connector for rotary tool 失效
    旋转工具轴承接头

    公开(公告)号:US4804817A

    公开(公告)日:1989-02-14

    申请号:US28997

    申请日:1987-03-23

    申请人: Mark A. Overbay

    发明人: Mark A. Overbay

    IPC分类号: B23K9/028 B23K9/32 B23K9/24

    CPC分类号: B23K9/0284 B23K9/323

    摘要: A tool having a rotating hollow electrode is provided power through a rotary electrical connection in the form of ball bearings and conductive lubricant, with a fixed hollow power supply fitting mounted in and insulated from a housing structure journaled in the bearings. Gas for welding is supplied through the hollow fitting and electrode which are in fluid communication.