发明名称 |
THREADED TUBULAR ELEMENT PROVIDED WITH A METALLIC ANTI-CORROSION AND ANTI-GALLING COATING |
摘要 |
The invention concerns a threaded portion of a tubular element for a threaded tubular connection hiving an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing surface on the peripheral surface, the first sealing surface being capable of producing metal-metal interference with a corresponding second sealing surface belonging to a complementary threaded portion of a tube. The threading and the first sealing surface are coated with a metallic anti-corrosion and anti-galling layer wherein zinc (Zn) is tie major element by weight. |
申请公布号 |
WO2016170031(A1) |
申请公布日期 |
2016.10.27 |
申请号 |
WO2016EP58847 |
申请日期 |
2016.04.21 |
申请人 |
VALLOUREC OIL AND GAS FRANCE;NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
VERLEENE, Arnaud;BAUDIN, Nicolas;VOGT, Cédric;JAAFAR, Adil |
分类号 |
C10M171/00;C10N10/02;C10N10/04;C10N10/12;C10N10/16;C10N40/34;C10N50/08;C10N70/00;C10N80/00;C23C28/00;E21B17/042;F16L57/00;F16L58/08 |
主分类号 |
C10M171/00 |
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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