Compressible pipe spacer used in welding
    171.
    发明授权
    Compressible pipe spacer used in welding 失效
    用于焊接的可压缩管道隔板

    公开(公告)号:US6059320A

    公开(公告)日:2000-05-09

    申请号:US301193

    申请日:1999-04-28

    Inventor: Goodwin A. Lycan

    Abstract: A split, ring-shaped pipe spacer used to maintain separation between a pipe and a fitting shoulder during welding. The spacer has pairs of yieldable offset segments. The two segments of each pair bulge from the spacer body in opposite directions to maintain proper spacing between the pipe and fitting during welding. The opposing offset segments also permit bi-directional insertion of the spacer into the fitting, position the spacer body out of contact with both the pipe and the fitting, and minute and distribute the stress imparted to the spacer when forming the segments during manufacturing. The spacer ends forming the split in the spacer have a tongue-in-groove shape to accommodate circumferential expansion of the spacer under compression of the pipe.

    Abstract translation: 用于在焊接期间保持管和配件肩之间的分离的分开的环形管间隔件。 间隔物具有成对的可屈曲偏移段。 每对的两个部分沿相反的方向从间隔件主体凸出,以在焊接期间保持管和配件之间的适当间隔。 相对的偏移段还允许将间隔件双向插入配件中,使间隔件主体与管和配件脱离接触,并且在制造过程中形成段时分配施加到间隔件的应力。 在间隔件中形成裂缝的间隔件端部具有舌形槽形状,以适应管道压缩时间隔件的周向膨胀。

    Device for cutting circular openings in pipe, vessels, and flat material
    173.
    发明授权
    Device for cutting circular openings in pipe, vessels, and flat material 失效
    用于切割管,容器和扁平材料中的圆形开口的装置

    公开(公告)号:US6022506A

    公开(公告)日:2000-02-08

    申请号:US275828

    申请日:1999-03-25

    CPC classification number: B23K7/107 B23K2201/06

    Abstract: A circle cutting device that is particularly useful for cutting openings through pipe and round vessels and may also be utilized for cutting circular openings through flat material. The device utilizes a conventional oxygen acetylene cutting torch or plasma cutter and also may be angled to provide a means for bevel cutting circular openings at a desired angle. The device is portable and easily used in field operations by a craftsman.

    Abstract translation: 一种圆切割装置,其特别适用于通过管和圆形容器切割开口,并且还可用于通过扁平材料切割圆形开口。 该装置使用常规的氧乙炔切割割枪或等离子切割机,并且还可以成角度以提供用于以期望的角度斜切圆形开口的装置。 该设备是便携式的,并且易于由工匠在现场操作中使用。

    Method of forming seamed metal tube
    174.
    发明授权
    Method of forming seamed metal tube 失效
    形成缝合金属管的方法

    公开(公告)号:US6018859A

    公开(公告)日:2000-02-01

    申请号:US89761

    申请日:1998-06-03

    Abstract: The method of forming a seamed metal tube having a metal coating of this invention includes applying a metal coating to the upper face of a metal strip prior to welding. The strip is then formed into an open seam tube and welded, preferably in a non-oxidizing atmosphere with the seam preferably located in the lower portion of the tube. Finally, at least a lower portion of said tube is reheated with the seam located in the lower portion of the tube, thereby causing the metal coating to flow downwardly over the seam, coating the seam. In one embodiment, the strip is preformed into an arcuate shape and coated, wherein the metal coating increases in thickness toward the lateral strip edges, such that the coating will flow over the seam following welding. The inside coated seamed tube may also be immersed in a galvanizing or metal coating bath to coat the outside of the tube. In a preferred embodiment, the inside and outside coatings comprise substantially the same metal and a single galvanizing bath apparatus is used to coat the inside and outside surfaces of the seamed tube. In another embodiment, the coating on the inner surface of the seamed tube has a melting temperature substantially below the melting temperature of the metal strip, but higher than the melting temperature of the outside metal coating. In another embodiment, a lance is provided having a free end which extends through the adjacent lateral edges of a tube-shaped strip and a nozzle which applies metal coating material over the seam. A control loop is also disclosed for improved reflow of the metal coating over the seam.

    Abstract translation: 形成具有本发明的金属涂层的缝合金属管的方法包括在焊接之前将金属涂层施加到金属带的上表面。 然后将带材形成为开缝管并优选在非氧化性气氛中焊接,其中接缝优选位于管的下部。 最后,所述管的至少下部部分被再次加热,其中接缝位于管的下部,从而使金属涂层向下流过接缝,涂覆接缝。 在一个实施例中,条带被预成形为弓形并且被涂覆,其中金属涂层朝向横向条边缘增加厚度,使得涂层将在焊接之后流过焊缝。 内部涂覆的缝合管也可以浸入镀锌或金属涂层浴中以涂覆管的外部。 在优选实施例中,内外涂层包括基本上相同的金属,并且使用单个镀锌浴装置来涂覆缝合管的内表面和外表面。 在另一个实施方案中,缝合管的内表面上的涂层的熔融温度基本上低于金属带的熔融温度,但高于外部金属涂层的熔融温度。 在另一个实施例中,提供了一种具有自由端的喷枪,该自由端延伸穿过管状条的相邻侧边缘,以及在接缝上施加金属涂层材料的喷嘴。 还公开了一种用于改善接缝上的金属涂层的回流的控制回路。

    Method of welding the ends of pipe together using dual welding wires
    175.
    发明授权
    Method of welding the ends of pipe together using dual welding wires 失效
    使用双焊丝将管端部焊接在一起的方法

    公开(公告)号:US5981906A

    公开(公告)日:1999-11-09

    申请号:US936883

    申请日:1997-09-25

    CPC classification number: B23K9/0286 B23K2201/06

    Abstract: A new system for welding sections of pipe together to form a long, continuous pipeline. A welding bug is mounted on a guide track which goes around the circumference of the pipe. The welding bug is provided with a wire feeder, a motor to drive the wire feeder, and driving motor for driving the bug around the track. One may vary the speed of the bug and the wire feeder while the bug is continuously driven around the track. The welding head on the welding bug is powered by a surface-tension-transfer power source. The initial or root pass is made external of the pipe. In one embodiment there is a dual welding wire feeder for driving two welding wires simultaneously at the same speed.

    Abstract translation: 一种用于将管道部分焊接在一起以形成长而连续的管道的新系统。 焊接错误安装在围绕管道圆周的导轨上。 焊接缺陷提供有送丝机,用于驱动送丝机的马达,以及用于驱动马达围绕轨道驱动的马达。 当错误持续地围绕轨道驱动时,可以改变错误和送丝器的速度。 焊接头上的焊接头由表面张力传递电源供电。 初始或根部通过管道外部。 在一个实施例中,存在用于以相同速度同时驱动两根焊丝的双焊丝馈线。

    Compressible pipe spacer used in welding
    176.
    发明授权
    Compressible pipe spacer used in welding 失效
    用于焊接的可压缩管道隔板

    公开(公告)号:US5915737A

    公开(公告)日:1999-06-29

    申请号:US896409

    申请日:1997-07-18

    Inventor: Goodwin A. Lycan

    Abstract: A split, ring-shaped pipe spacer used to maintain separation between a pipe and a fitting shoulder during welding. The spacer has pairs of yieldable offset segments. The two segments of each pair bulge from the spacer body in opposite directions to maintain proper spacing between the pipe and fitting during welding. The opposing offset segments also permit bidirectional insertion of the spacer into the fitting, position the spacer body out of contact with both the pipe and the fitting, and minute and distribute the stress imparted to the spacer when forming the segments during manufacturing. The spacer ends forming the split in the spacer have a tongue-in-groove shape to accommodate circumferential expansion of the spacer under compression of the pipe.

    Abstract translation: 用于在焊接期间保持管和配件肩之间的分离的分开的环形管间隔件。 间隔物具有成对的可屈曲偏移段。 每对的两个部分沿相反的方向从间隔件主体凸出,以在焊接期间保持管和配件之间的适当间隔。 相对的偏移段还允许间隔件双向插入配件中,使间隔件主体与管和配件脱离接触,并且在制造过程中形成段时分配施加到间隔件的应力。 在间隔件中形成裂缝的间隔件端部具有舌形槽形状,以适应管道压缩时间隔件的周向膨胀。

    Welded rod fitting damper manufacture
    177.
    发明授权
    Welded rod fitting damper manufacture 失效
    焊接杆安装阻尼器制造

    公开(公告)号:US5896960A

    公开(公告)日:1999-04-27

    申请号:US917259

    申请日:1997-08-25

    Abstract: A method of manufacturing a suspension damper with a welded rod fitting includes attaching a piston rod to a piston assembly. The piston assembly with the attached piston rod is inserted into a tube so that the piston rod extends from the tube. Hydraulic fluid is added to the tube either before or after the piston assembly is inserted. A rod guide assembly is slidingly received over the piston rod and is secured to the tube. An end fitting is secured in a weld fixture. The tube, containing hydraulic fluid, the piston assembly, the secured rod guide and the extending piston rod is positioned so that the piston rod abuts the end fitting. An electrical current is passed through the end fitting and the piston rod. The piston rod is moved away from the end fitting forming a gap as the electrical current is passing through the end fitting and the piston rod so that an arc is established across the gap to weld the end fitting to the piston rod.

    Abstract translation: 制造具有焊接杆配件的悬挂阻尼器的方法包括将活塞杆附接到活塞组件。 具有附接的活塞杆的活塞组件插入管中,使得活塞杆从管延伸。 在活塞组件插入之前或之后,将液压流体加入管中。 杆导向组件滑动地容纳在活塞杆上并固定到管上。 端部接头固定在焊接夹具中。 包含液压流体的管,活塞组件,固定杆导向件和延伸活塞杆定位成使得活塞杆邻接端部配件。 电流通过端部配件和活塞杆。 当电流通过端部配件和活塞杆时,活塞杆远离端部配件移动,形成间隙,使得跨越间隙建立电弧以将端部接头焊接到活塞杆。

    Clamping apparatus for an electrofusion joint
    178.
    发明授权
    Clamping apparatus for an electrofusion joint 失效
    电熔接头夹紧装置

    公开(公告)号:US5895543A

    公开(公告)日:1999-04-20

    申请号:US59232

    申请日:1998-04-13

    Inventor: Terry L. Stiles

    Abstract: A clamping apparatus for use in clamping a fitting to a pipe or other fitting. The apparatus may be used without supporting the outer surface of the pipe on the opposite side of the fitting, and in the case of a buried pipe, only a portion of the pipe needs to be excavated. The apparatus comprises a clamping plate for engaging an outer surface of the fitting with an adjusting stem threadingly engaged with the clamping plate. A locking bar is pivotally and rotatably attached to an end of the adjusting stem. A weight differential between long and short ends of said locking bar and a cable are used to pivot the locking bar between a first position thereof wherein the locking bar and a portion of the stem may be inserted through aligned openings in the fitting and pipe and a second position. In the second position, the clamping bar may be clampingly engaged with an inner surface of the pipe by rotation of the adjusting stem which also results in the clamping plate being clampingly engaged with an outer surface of the fitting. A lock nut locks the apparatus in the clamping position. The fitting may then be permanently attached to the pipe, such as by an electrofusion process, after which the apparatus may be unclamped and removed. A method of attaching a fitting to a pipe using the apparatus is also disclosed.

    Abstract translation: 用于将配件夹紧到管道或其他配件的夹紧装置。 可以使用该装置而不在配件的相对侧上支撑管的外表面,并且在埋管的情况下,仅需要挖掘一部分管。 该装置包括用于使配件的外表面与夹紧板螺纹接合的调节杆接合的夹板。 锁定杆可枢转地并可旋转地附接到调节杆的端部。 所述锁定杆的长端和短端之间的重量差异和电缆用于在其第一位置之间枢转锁定杆,其中锁定杆和杆的一部分可以穿过配件和管中的对准的开口插入, 第二名 在第二位置,通过调节杆的旋转,夹紧杆可以与管的内表面夹紧接合,这也导致夹板与配件的外表面夹紧接合。 锁紧螺母将设备锁定在夹紧位置。 然后可以将配件永久地附接到管道,例如通过电熔过程,之后可以将设备松开并移除。 还公开了使用该装置将配件附接到管道的方法。

    Pipe fitting apparatus
    179.
    发明授权
    Pipe fitting apparatus 失效
    管件装置

    公开(公告)号:US5895035A

    公开(公告)日:1999-04-20

    申请号:US858869

    申请日:1997-05-19

    Applicant: C. Barton Bley

    Inventor: C. Barton Bley

    Abstract: A pipe fitting apparatus for holding a pair of pipe fittings together such that the pipe fittings may be welded. The apparatus is designed for use by a single operator. The apparatus comprises a pair of handles interconnected by a conventional locking toggle apparatus and having first and second clamping jaws extending from the handles such that the first and second clamping jaws may be clampingly engaged with a first pipe fitting. A lower support extends from one of said clamping jaws and provides adjustable support for a lower portion of a second pipe fitting adjacent to the first pipe fitting. An upper support provides supporting engagement for a distal upper end of the second pipe fitting and includes an arm holder attached to one of the clamping jaws and a support arm slidably connected to the arm holder and which may be locked in a supporting position. The arm holder provides pivotation of the support arm in two axes so that the support arm may be moved as necessary to accommodate different sizes and shapes of fittings.

    Abstract translation: 管配件装置,用于将一对管件保持在一起,使得管件可以被焊接。 该设备设计用于单个操作员使用。 该装置包括一对手柄,其通过常规的锁定肘节装置互连,并具有从把手延伸的第一和第二夹爪,使得第一和第二夹爪可以与第一管接头夹紧接合。 下支撑件从所述夹爪中的一个延伸,并且为邻近第一管配件的第二管件的下部提供可调节的支撑。 上支撑件为第二管配件的远端上端提供支撑接合,并且包括附接到一个夹爪的臂保持件和可滑动地连接到臂保持器并且可锁定在支撑位置的支撑臂。 臂支架提供支撑臂在两个轴线上的枢转,使得支撑臂可以根据需要移动以适应不同尺寸和形状的配件。

    Method and apparatus for maintaining seam alignment in seam welded tubes
    180.
    发明授权
    Method and apparatus for maintaining seam alignment in seam welded tubes 失效
    用于在缝焊管中保持焊缝对准的方法和装置

    公开(公告)号:US5868299A

    公开(公告)日:1999-02-09

    申请号:US851326

    申请日:1997-05-05

    CPC classification number: B23K37/0533 B23K2201/06

    Abstract: The invention comprises a method and apparatus for maintaining seam alignment in seam welded tubes comprising the tube being formed to be advanced through a shaping station after seam welding and prior to the cooling of tube wherein the tube is preformed to commence to assume at least two continuously extending flat shaped surfaces parallel with the continuous seam and contacting the preformed tube subsequent to the cooling to maintain alignment of the weld seam.

    Abstract translation: 本发明包括一种用于在缝焊管中保持焊缝对准的方法和装置,其包括在缝焊之后并且在管的冷却之前被形成为前进通过成型台的管,其中管被预成型以开始呈现至少两个连续 延伸平直的表面与连续的接缝平行,并在冷却之后接触预制管,以保持焊缝的对准。

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