公开(公告)号：EP1310719B1

公开(公告)日：2005-05-11

申请号：EP01938561.6

申请日：2001-06-08

申请人： SUMITOMO METAL INDUSTRIES, LTD. ,  VALLOUREC MANNESMANN OIL & GAS FRANCE

发明人： NAGASAKU, Shigeo ,  MAEDA, Jun ,  SUMITANI, Katsutoshi, c/o Sumitomo Metal Ind., Ltd

IPC分类号： F16L15/06

CPC分类号： F16L15/001 ,  F16L15/006

摘要： A pipe joint, comprising a shape having a stub side clearance (C) of 0.5-1.0 mm, a stub side thread angle ( theta ) of 15-60, the top and bottom faces of a thread positioned parallel with an axis, and a radius (R) at a male thread stub side corner of 1.0-1.25 mm, wherein a pin part having a tapered male screw formed in the end part outer peripheral surface of a tube is threaded with a box part having a tapered female screw threaded with the tapered male screw formed in the end part inner peripheral surface of the tube or a short tube, the taper of the incomplete thread part of the pin part being desirable to be 0.96-0.90 times the reference taper of the complete thread part.

摘要翻译： 1.一种管接头，其特征在于，具有短轴侧间隙（C）为0.5〜1.0mm，短轴侧线角θ为15°〜60°的形状，与轴平行的线的上下表面， 其特征在于，在管的端部外周面形成有具有锥形外螺纹的销部，在外螺纹的短轴方向上的外径半径（R）为1.0〜1.25mm， 锥形外螺纹形成在管的端部内周表面或短管中，销部分的不完全螺纹部分的锥度希望是整个螺纹部分的基准锥度的0.96-0.90倍。

公开(公告)号：EP1310719A1

公开(公告)日：2003-05-14

申请号：EP01938561.6

申请日：2001-06-08

申请人： SUMITOMO METAL INDUSTRIES, LTD. ,  VALLOUREC MANNESMANN OIL & GAS FRANCE

发明人： NAGASAKU, Shigeo ,  MAEDA, Jun ,  SUMITANI, Katsutoshi, c/o Sumitomo Metal Ind., Ltd

IPC分类号： F16L15/06

CPC分类号： F16L15/001 ,  F16L15/006

摘要： A pipe joint formed by screwing a pin portion having a tapered male thread formed on the outer peripheral surface of the end of a pipe into a box portion having a tapered female thread formed on the inner peripheral surface of the end of a pipe or a short pipe so as to threadingly engage with the tapered male thread, the pipe joint having the following shape:
   clearance C between thread stab flanks: 0.5 - 1.0 mm
   thread stab flank angle θ: 15 - 60 degrees
   thread crest surfaces and    thread root surfaces: parallel to the pipe axis
   radius R of stab flank corner    portions of male thread: 1.0 - 1.25 mm
In addition, the taper of the incomplete thread portion of the pin portion is preferably 0.96 - 0.90 times the nominal taper of the complete thread portion.

摘要翻译： 将在管端部的外周面上形成的具有锥形外螺纹的销部拧入形成在管端部的内周面上的具有锥形阴螺纹的箱部或短管 以便与锥形外螺纹螺纹啮合，该管接头具有以下形状：螺纹牙侧之间的间隙C：0.5-1.0mm螺纹牙侧角θ：15-60度螺纹牙顶表面和螺纹牙根表面：平行 与外螺纹的刺​​头牙侧角部的管轴半径R之比为1.0-1.25mm。此外，销部分的不完整螺纹部分的锥度优选为完整螺纹部分的标称锥度的0.96-0.90倍。