发明申请
- 专利标题: THREADED JOINT FOR PIPES
- 专利标题(中): 螺纹连接管
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申请号: US14929629申请日: 2015-11-02
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公开(公告)号: US20160230119A1公开(公告)日: 2016-08-11
- 发明人: Kunio GOTO , Takayuki KAMIMURA , Masaru TAKAHASHI , Keishi MATSUMOTO , Michihiko IWAMOTO , Ryuichi IMAI , Stephanie RAI
- 申请人: NIPPON STEEL & SUMITOMO METAL CORPORATION , VALLOUREC MANNESMANN OIL AND GAS FRANCE
- 优先权: JP2007-313378 20071204; JP2008-268817 20081017
- 主分类号: C10M169/04
- IPC分类号: C10M169/04 ; F16L15/00 ; E21B17/08 ; C10M101/02 ; C10M147/02 ; C10M125/26 ; C10M125/18 ; C10M145/14 ; C10M129/70 ; F16L58/18 ; C10M125/10
摘要:
In a threaded joint for pipes constituted by a pin and a box, each having a contact surface comprising a threaded portion and an unthreaded metal contact portion, the contact surface of the pin has a solid corrosion protective, preferably transparent coating based on a UV-curable resin and the contact surface of the box has a solid lubricating coating having plastic or viscoplastic rheological behavior which is preferably formed by the hot melt technique from a composition comprising a thermoplastic polymer, a wax, a metal soap, a corrosion inhibitor, a water-insoluble liquid resin, and a solid lubricant.
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