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    Gas-tight joint for pipe linings and risers
    1.
    发明授权
    Gas-tight joint for pipe linings and risers 失效
    管内衬和立管气密接头

    公开(公告)号：US4969671A

    公开(公告)日：1990-11-13

    申请号：US538688

    申请日：1990-06-15

    申请人： Heinz Gross ,  Friedrich-Otto Koch ,  Matthias Lang ,  Adolf Peeck ,  Hans Spliethoff ,  Wolfgang Venema ,  Jurgen Duisberg ,  Robert Scholl

    发明人： Heinz Gross ,  Friedrich-Otto Koch ,  Matthias Lang ,  Adolf Peeck ,  Hans Spliethoff ,  Wolfgang Venema ,  Jurgen Duisberg ,  Robert Scholl

    IPC分类号： E21B17/042 ,  E21B17/08 ,  F16L15/04 ,  F16L15/06

    CPC分类号： F16L15/003 ,  E21B17/042 ,  E21B17/08 ,  F16L15/04 ,  Y10S285/91

    摘要： A gas-tight joint for pipe linings and risers inside a bore, consisting of a neck with an outside thread and of a matching collar with an inside thread, with a groove in the vicinity of the thread on the collar and/or of the thread on the neck to accommodate a deformable gasket that, when the joint is screwed tight, is demarcated and deformed by the base of the groove in the neck and/or in the collar and by the contour of the thread on the other component. The cross-sectional area demarcated by the base of the groove in the neck and/or collar and by the contour of the thread on the other component once the two components have been screwed together remains constant along the groove and is equal to or larger than the cross-sectional area of the deformable gasket before the components are screwed together.

    摘要翻译： 用于管内衬和立管内部的气密接头，由具有外螺纹的颈部和具有内螺纹的匹配套环组成，在颈圈和/或螺纹上的螺纹附近具有凹槽 在颈部以容纳可变形垫圈，当接头拧紧时，由颈部和/或套环中的凹槽的基部和另一部件上的线的轮廓划分并变形。 一旦两个部件已经拧紧在一起，在颈部和/或轴环中的槽的基部和另一个部件上的螺纹的轮廓划分的横截面面积沿着凹槽保持恒定，并且等于或大于 在将部件拧紧在一起之前，可变形垫片的横截面积。

    Multi-layer helical seam steel pipe
    2.
    发明授权
    Multi-layer helical seam steel pipe 失效
    多层螺旋缝钢管

    公开(公告)号：US4688319A

    公开(公告)日：1987-08-25

    申请号：US652206

    申请日：1984-09-20

    申请人： Heinz Gross ,  Friedrich-Otto Koch ,  Adolf Peeck ,  Werner Wennemann

    发明人： Heinz Gross ,  Friedrich-Otto Koch ,  Adolf Peeck ,  Werner Wennemann

    IPC分类号： F16L9/08 ,  B21C37/06 ,  B21C37/12 ,  B21D39/04 ,  F16L9/16 ,  B21D39/00 ,  B23P11/02 ,  F16L9/14

    CPC分类号： F16L9/16 ,  B21C37/06 ,  B21C37/123 ,  B21D39/04 ,  Y10T29/49911 ,  Y10T29/4994

    摘要： A method for production of a multi-layer gap-less steel pipe. An inner pipe and an outer pipe are formed from thermomechanically rolled steel strip with high notched bar impact strength by welding. The individual helical welding seam steel pipes of about the same lengths are matched with a difference of less than about one percent between the outer diameter of the inner pipe and the inner diameter of the outer pipe. The matched inner pipe is inserted into the outer pipe and the pipes are mechanically expanded with diameter control to a preset outer diameter of the multi-layer steel pipe. The resulting multi-layer steel pipe has the inner pipe disposed under compression and the outer pipe layer disposed under stress. The presence of a compression stress in the inner pipe provides a means opposed to hydrogen sulfide stress corrosion. The advantages of the helical welding seam steel pipes can be combined such as economic production, advantages relating to crack formation and crack propagation stopping, and the availability of high internal pressure loads upon use of thin, economic steel strip of different yield strength.

    摘要翻译： 一种生产多层无缝钢管的方法。 内管和外管由通过焊接的高切口棒冲击强度的热机械轧制钢带形成。 大致相同长度的单个螺旋焊缝钢管与内管的外径和外管的内径之间的差小于约1％。 将匹配的内管插入外管，并将管道机械膨胀，直径控制到多层钢管的预设外径。 得到的多层钢管的内管配置在压缩状态，外管层处于应力状态。 在内管中存在压缩应力，提供了与硫化氢应力腐蚀相反的手段。 螺旋焊缝钢管的优点可以结合经济生产，与裂纹形成和裂纹扩展停止有关的优点，以及使用具有不同屈服强度的薄经济钢带的高内压载荷的可用性。

    Multi-layer helical seam steel pipe
    3.
    发明授权
    Multi-layer helical seam steel pipe 失效
    多层螺旋缝钢管

    公开(公告)号：US4823847A

    公开(公告)日：1989-04-25

    申请号：US416478

    申请日：1982-09-10

    申请人： Heinz Grosse ,  Friedrich-Otto Koch ,  Adolf Peeck ,  Werner Wennemann

    发明人： Heinz Grosse ,  Friedrich-Otto Koch ,  Adolf Peeck ,  Werner Wennemann

    IPC分类号： F16L9/08 ,  B21C37/06 ,  B21C37/12 ,  B21D39/04 ,  F16L9/16 ,  F16L9/14

    CPC分类号： F16L9/16 ,  B21C37/06 ,  B21C37/123 ,  B21D39/04 ,  Y10T29/49911 ,  Y10T29/4994

    摘要： A method for production of a multi-layer gap-less steel pipe. An inner pipe and an outer pipe are formed from thermomechanically rolled steel strip with high notched bar impact strength by welding. The individual helical welding seam steel pipes of about the same lengths are matched with a difference of less than about one percent between the outer diameter of the inner pipe and the inner diameter of the outer pipe. The matched inner pipe is inserted into the outer pipe and the pipes are mechanically expanded with diameter control to a preset outer diameter of the multi-layer steel pipe. The resulting multi-layer steel pipe has the inner pipe disposed under compression and the outer pipe layer disposed under stress. The presence of a compression stress in the inner pipe provides a means opposed to hydrogen sulfide stress corrosion. The advantages of the helical welding seam steel pipes can be combined such as economic production, advantages relating to crack formation and crack propagation stopping, and the availability of high internal pressure loads upon use of thin, economic steel strip of different yield strength.

    摘要翻译： 一种生产多层无缝钢管的方法。 内管和外管由通过焊接的高切口棒冲击强度的热机械轧制钢带形成。 大致相同长度的单个螺旋焊缝钢管与内管的外径和外管的内径之间的差小于约1％。 将匹配的内管插入外管，并将管道机械膨胀，直径控制到多层钢管的预设外径。 得到的多层钢管的内管配置在压缩状态，外管层处于应力状态。 在内管中存在压缩应力，提供了与硫化氢应力腐蚀相反的手段。 螺旋焊缝钢管的优点可以结合经济生产，与裂纹形成和裂纹扩展停止有关的优点，以及使用具有不同屈服强度的薄经济钢带的高内压载荷。