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    Fatigue Resistant Coiled Tubing
    3.
    发明申请
    Fatigue Resistant Coiled Tubing 有权
    耐疲劳卷管

    公开(公告)号：US20140262337A1

    公开(公告)日：2014-09-18

    申请号：US13804790

    申请日：2013-03-14

    申请人： TENARIS CONNECTIONS LIMITED

    发明人： Sebastian Cravero ,  Martin Valdez ,  Jorge Mitre ,  Hugo Alejandro Emst ,  Ricardo Schifini Gladchtein

    IPC分类号： F16L9/02 ,  E21B19/22 ,  B23K31/02

    CPC分类号： B23K31/027 ,  B21C37/0826 ,  B21C47/247 ,  B23K31/02 ,  B23K2101/16 ,  E21B19/22 ,  F16L9/02 ,  F16L9/16

    摘要： The disclosed manufacture method for a length of tubing can produce a length of fatigue resistant tubing that has relatively high fatigue resistance and relatively low strip-to-strip welding length. The Fatigue resistance is calculated from experimental settings with controlled parameters and/or simulations reproducing similar material properties and loading conditions. A high fatigue resistance means certain product characteristics (e.g., low plasticization, low hydrostatic stress levels and free of imperfections welds) can be retained with an adequate bias weld design at low values after a specific test number of cyclic loading. The relatively low strip-to-strip welding length is an advantage for reducing probabilities of having cracks initiated and/or propagated at weld locations, where imperfections and localized differences of mechanical properties commonly cause failure. Low strip-to-strip welding length can also reduce the costs for welding.

    摘要翻译： 所公开的一段管道的制造方法可以产生一段长度的抗疲劳管材，其具有相对较高的耐疲劳性能和相对较低的条带焊接长度。 疲劳阻力由具有受控参数和/或再现相似材料性能和负载条件的模拟的实验设置计算。 高耐疲劳性意味着在具有特定试验次数的循环载荷之后，可以用适当的偏压焊接设计将特定的产品特性（例如，低增塑，低静水压应力水平和无缺陷焊缝）保持在较低的值。 相对较低的条带焊接长度对于减少在焊接位置处引发和/或传播的裂纹的概率是有利的，其中机械性能的缺陷和局部差异通常导致故障。 低的条带焊接长度也可以降低焊接成本。

    Continuous length of coilable tubing
    7.
    发明授权
    Continuous length of coilable tubing 失效
    可连续管线长度

    公开(公告)号：US5191911A

    公开(公告)日：1993-03-09

    申请号：US825838

    申请日：1992-01-28

    申请人： Jon D. Dubois

    发明人： Jon D. Dubois

    IPC分类号： B21C37/08 ,  B21C37/083 ,  B23K31/02

    CPC分类号： B23K31/027 ,  B21C37/08 ,  B21C37/0826 ,  B21C37/083 ,  Y10T137/6929

    摘要： A system for making a long length of seam-welded tubing from shorter lengths of flat metal strip which are spliced end-to-end and formed into tubular form and seam-welded. Adjoining ends of two successive lengths of the strip are trimmed at supplementary angles, one of which is an acute angle. The trimmed ends are abutted and welded, preferably with weldment extending beyond each such end. All surfaces of the weld are finished to match the dimensions of the strip. The tubing, along with the welded joints, is heat treated as the tubing is formed to produce a product substantially free of internal surface roughness along the splice welds.

    摘要翻译： 一种用于从较短长度的扁平金属条制造长度长的缝焊管道的系统，它们端对端地接合并形成管形并且被缝焊。 带的两个连续长度的相邻端部以辅助角度修剪，其中一个是锐角。 修剪的端部被邻接和焊接，优选地具有延伸超过每个这样的端部的焊件。 焊缝的所有表面都完成，以匹配条带的尺寸。 管道与焊接接头一起被热​​处理，因为管道被形成以产生沿着接合焊缝基本上没有内表面粗糙度的产品。