发明名称 |
MALE ELEMENT FOR A SEALED THREADED TUBULAR CONNECTION |
摘要 |
<p>A male element for a sealed threaded tubular connection. Before tapered reduction swaging of an end region of a tube and machining in the region of a tapered male threading and a male lip to obtain a male tubular element for makeup into a female tubular element to form a sealed threaded tubular connection after diametrical expansion, the tube is shaped over a portion of its length to produce a cylindrical internal surface that connects via a chamfer to the cylindrical internal surface of the lip obtained subsequently by machining, the radius of the first surface being greater than the radius of the second surface.</p> |
申请公布号 |
EP1787052(B1) |
申请公布日期 |
2014.04.30 |
申请号 |
EP20050801541 |
申请日期 |
2005.09.08 |
申请人 |
VALLOUREC OIL AND GAS FRANCE |
发明人 |
FONTAINE, LUDOVIC;DUQUESNE, BENOIT;MOLINS, GREGORY |
分类号 |
F16L15/06 |
主分类号 |
F16L15/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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