发明名称 |
THREADED JOINT FOR STEEL PIPES. |
摘要 |
<p>A threaded joint for steel pipes comprises a pin (1) and a box (2) each having a threaded portion (3a or 3b) and an unthreaded metal-to-metal contact portion (4a or 4b) as contact surfaces which contact each other when the joint is fastened. The contact surfaces (3a and 4a and/or 3b and 4b) of at least one of the pin (1) and the box (2) are coated with a lower layer of a solid lubricating coating containing a solid lubricating powder (e.g., molybdenum disulfide, tungsten disulfide, or graphite) and a binder (e.g., an epoxy or other organic resin) and an upper layer of a solid corrosion protective coating formed by an organic resin which does not contain solid particles.</p> |
申请公布号 |
MX2007008518(A) |
申请公布日期 |
2007.08.14 |
申请号 |
MX20070008518 |
申请日期 |
2006.01.11 |
申请人 |
SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
RYUICHI IMAI;KUNIO GOTO;KAORU TAKANASHI;YASUHIRO OGAWA |
分类号 |
F16L15/04;C23C24/04;F16B33/06 |
主分类号 |
F16L15/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|