COMBINATION WELDING METHOD OF SIMULTANEOUSLY PERFORMING TUNGSTEN ARC WELDING AND SUBMERGED ARC WELDING
    41.
    发明申请
    COMBINATION WELDING METHOD OF SIMULTANEOUSLY PERFORMING TUNGSTEN ARC WELDING AND SUBMERGED ARC WELDING 审中-公开
    同时进行钨焊和焊接弧焊的组合焊接方法

    公开(公告)号:US20150283641A1

    公开(公告)日:2015-10-08

    申请号:US14499403

    申请日:2014-09-29

    发明人: Byeong-Kwen KIM

    IPC分类号: B23K11/00 F16L9/17 F16L9/02

    摘要: There is provided a combination welding method performed by leading with a tungsten arc welding method and following with a submerged arc welding method by keeping a predetermined separation distance from the tungsten arc weld zone. According to the combination welding method of the present invention, the occurrence of bending of a steel pipe is reduced and a welding time is shortened since the inside welding and the outside welding are simultaneously performed by keeping the predetermined separation distance. In addition, since the outside welding is performed before a fusion area temperature is below an A1 transformation point after the inside welding, the bending of the steel pipe is properly controlled after the welding and therefore straightening time in a post-process is shortened.

    摘要翻译: 提供了一种通过以钨电弧焊接方法前进并通过与钨电弧焊接区域保持预定间隔距离的埋弧焊接方法进行的组合焊接方法。 根据本发明的组合焊接方法,通过保持规定的间隔距离同时进行内侧焊接和外部焊接,钢管的弯曲发生减少,焊接时间缩短。 此外,由于在内部焊接之后在熔融区域温度低于A1相变点之前进行外部焊接,因此在焊接之后适当地控制钢管的弯曲,因此缩短后期处理的矫直时间。

    Shear increasing system
    42.
    发明授权
    Shear increasing system 有权
    剪切增加系统

    公开(公告)号:US09145999B2

    公开(公告)日:2015-09-29

    申请号:US12994932

    申请日:2009-05-28

    IPC分类号: F16L9/14 F16L59/02

    摘要: A piping system employs a friction layer of windings, beads or pellets placed between insulation layers and/or on the outermost layer, that being the insulation layer if no jacket is employed or the jacket if it is employed. The windings, beads or pellets are wrapped or applied while the layer is uncured or warm so as to embed themselves into the surface and create a uneven, bumpy or undulating surface. The resulting product increases friction both internally and externally to better restrain or inhibit pipe movement in underground, marine, or subsea applications or provide restraint to the surrounding environment (earth, concrete, etc.).

    摘要翻译: 管道系统使用放置在绝缘层之间和/或最外层上的绕组,珠粒或丸粒的摩擦层,如果不使用护套,则为绝缘层,如果使用护套,则使用绝缘层。 绕组,珠或颗粒被包裹或施加,同时层未固化或加热,以便将其自身嵌入表面并产生不均匀,颠簸或起伏的表面。 所产生的产品增加了内部和外部的摩擦,以更好地抑制或抑制地下,海洋或海底应用中的管道运动,或者限制周围环境(地球,混凝土等)。

    Method for producing a steel pipe using a high energy density beam
    46.
    发明授权
    Method for producing a steel pipe using a high energy density beam 有权
    使用高能量密度束的钢管的制造方法

    公开(公告)号:US08993920B2

    公开(公告)日:2015-03-31

    申请号:US12933241

    申请日:2009-03-30

    申请人: Koji Yano Kenji Oi

    发明人: Koji Yano Kenji Oi

    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。

    Lead-free high temperature/pressure piping components and methods of use
    47.
    发明授权
    Lead-free high temperature/pressure piping components and methods of use 有权
    无铅高温/高压管道组件及使用方法

    公开(公告)号:US08991787B2

    公开(公告)日:2015-03-31

    申请号:US13796447

    申请日:2013-03-12

    申请人: NIBCO Inc.

    IPC分类号: F16K25/00 F17D1/00

    摘要: A piping component for controlling the flow of high-temperature fluids that includes a piping body having an inlet end and an outlet end, including methods of operating such components within a piping system. The piping body may be sized for fluids operating at temperatures from approximately 350° F. up to approximately 500° F., and 650° F. The piping body may also be sized for high-temperature fluids (e.g., steam) operating at pressures of up to approximately 400 psi, and 600 psi. In addition, the piping body is made from a silicon-copper alloy consisting essentially of less than 16% zinc, less than 0.25% lead, less than 0.25% bismuth, 2 to 6% silicon and a balance of copper (by weight).

    摘要翻译: 一种用于控制高温流体流动的管道部件,其包括具有入口端和出口端的管道主体,包括在管道系统内操作这些部件的方法。 管道主体的尺寸适用于在约350°F至约500°F和650°F的温度下操作的流体。管道主体还可以适用于在压力下操作的高温流体(例如蒸汽) 高达约400psi,和600psi。 另外,管道主体由基本上由小于16%的锌,小于0.25%的铅,小于0.25%的铋,2至6%的硅和余量的铜(重量)组成的硅 - 铜合金制成。

    METHOD AND APPARATUS FOR MANUFACTURING INTERLOCKING PIPE
    48.
    发明申请
    METHOD AND APPARATUS FOR MANUFACTURING INTERLOCKING PIPE 有权
    制造互锁管的方法和装置

    公开(公告)号:US20150040372A1

    公开(公告)日:2015-02-12

    申请号:US14385958

    申请日:2013-02-28

    IPC分类号: F16L9/22 F16L9/02

    摘要: The present invention provides a method and an apparatus for manufacturing an interlocking pipe obtained by easily and precisely shaping a pipe with a circular cross section or with the edges of the cross section nearly forming a circle in a non-loose manner, so as to provide excellent machining performance when the interlocking pipe is cut off and provide excellent operation efficiency for the apparatus itself. A metal band plate is helically wound onto a core member with a circular cross section or with the edges of the cross section nearly forming a circle. Clamping device is freely assembled at a front end of the code member in a detachable and switchable manner, and synchronously rotate in accordance with instructions from a main computing-controlling member, so as to prevent the metal band plate from being loosened, thereby to manufacture the interlocking pipe efficiently.

    摘要翻译: 本发明提供了一种用于制造互锁管的方法和装置,其通过以非松散的方式容易且精确地成形具有圆形横截面的管或者横截面几乎形成圆的边缘,从而提供 当联锁管被切断时具有优异的加工性能,并为设备本身提供优异的操作效率。 金属带板螺旋缠绕在具有圆形横截面的芯构件上或者横截面的边缘几乎形成一个圆形。 夹紧装置以可拆卸和可切换的方式自由组装在代码构件的前端,并且根据来自主计算控制构件的指令同步旋转,以防止金属带板松动,从而制造 联锁管有效。

    Stress Corrosion Cracking Resistant, Austenitic Steel Components and Weld Seams
    49.
    发明申请
    Stress Corrosion Cracking Resistant, Austenitic Steel Components and Weld Seams 审中-公开
    应力腐蚀开裂,奥氏体钢部件和焊缝

    公开(公告)号:US20140377485A1

    公开(公告)日:2014-12-25

    申请号:US14312865

    申请日:2014-06-24

    IPC分类号: B21D31/00 F16L9/02 B23K31/02

    摘要: A method for achieving a higher stress corrosion cracking resistance for steel components of corrosion resistant, austenitic steel having an outer oxide layer, especially a chromium oxide layer, especially steel components in the form of steel sheets, steel pipes or steel rods, as well as for weld seams connecting austenitic steel components, wherein the increased stress corrosion cracking resistance is achieved by introducing compressive stresses into an outer layer of the steel component covered outwardly by the oxide layer, respectively into an outer layer of the weld seam, wherein the compressive stresses are introduced by areal pressure exertion on the respective outer layer.

    摘要翻译: 具有外部氧化物层,特别是氧化铬层的耐腐蚀奥氏体钢的钢部件,特别是钢板,钢管或钢棒形式的钢部件的高应力腐蚀开裂性的方法,以及 用于连接奥氏体钢部件的焊缝,其中增加的应力腐蚀开裂性是通过将压缩应力引入到由氧化物层向外覆盖的钢部件的外层中分别进入焊缝的外层来实现的,其中压缩应力 通过在相应的外层上的面压力来引入。