公开(公告)号：WO2006075774A8

公开(公告)日：2006-09-21

申请号：PCT/JP2006300661

申请日：2006-01-11

Applicant: SUMITOMO METAL IND ,  IMAI RYUICHI ,  GOTO KUNIO ,  TAKANASHI KAORU ,  OGAWA YASUHIRO

Inventor： IMAI RYUICHI ,  GOTO KUNIO ,  TAKANASHI KAORU ,  OGAWA YASUHIRO

IPC: F16L15/04 ,  C23C24/04 ,  F16B33/06

CPC classification number: C10M125/02 ,  C10M125/22 ,  C10M2201/041 ,  C10M2201/065 ,  C10M2201/066 ,  C10N2240/22 ,  C10N2250/18 ,  C23C28/00 ,  C23C28/321 ,  C23C28/322 ,  C23C28/3225 ,  C23C28/324 ,  C23C28/34 ,  C23C28/345 ,  C23C28/347 ,  E21B17/042 ,  E21B17/08 ,  F16B33/008 ,  F16B33/06 ,  F16L15/004 ,  F16L58/182

Abstract: 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.

Abstract translation: 一种用于钢管的螺纹接头包括一个销钉（1）和一个盒子（2），每个销钉具有一个螺纹部分（3a或3b）和一个无螺纹金属 - 金属接触部分（4a或4b）作为彼此接触的接触表面 当关节被系紧时。 销（1）和盒（2）中的至少一个的接触表面（3a和4a和/或3b和4b）涂覆有含固体润滑粉末（例如钼 二硫化钨，二硫化钨或石墨）和粘合剂（例如环氧树脂或其它有机树脂）以及由不含固体颗粒的有机树脂形成的固体防腐蚀涂层的上层。

公开(公告)号：EP2128506A4

公开(公告)日：2011-05-11

申请号：EP08720987

申请日：2008-02-28

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： KIMOTO MASANARI ,  GOTO KUNIO ,  TAKAHASHI MASARU ,  FUKUI KUNIHIRO ,  NAGASAKU SHIGEO ,  IMAI RYUICHI ,  ONISHI SHIGEO ,  IKEGAMI HIROAKI

IPC: F16L15/04 ,  C10M101/02 ,  C10M103/02 ,  C10M159/06 ,  C10M159/24 ,  C10N10/04 ,  C10N30/06 ,  C10N40/00 ,  C10N50/08 ,  C23C26/00 ,  C25D3/58 ,  C25D5/12 ,  C25D7/00 ,  C25D7/04

CPC classification number: C23C28/00 ,  C10M111/04 ,  C10M169/042 ,  C10M2201/0413 ,  C10M2201/0423 ,  C10M2203/1006 ,  C10M2205/143 ,  C10M2205/163 ,  C10M2209/1003 ,  C10M2219/046 ,  C10N2240/22 ,  C10N2250/14 ,  C10N2250/18 ,  C23C28/021 ,  C23C28/023 ,  C23C30/00 ,  C25D5/10 ,  C25D5/12 ,  C25D5/36 ,  C25D7/10 ,  E21B17/042 ,  F16L15/001 ,  F16L15/08 ,  F16L58/182 ,  C10N2210/02

Abstract: A pin-box type threaded joint for steel tubes having a contact surface (30) including a threaded portion and a nonthreaded metal-to-metal contact portion has improved leak resistance, galling resistance, and corrosion resistance particularly to crevice corrosion. The contact surface of at least one of the pin and the box is coated with a first plating layer (34) made of a Cu-Zn alloy or a Cu-Zn-M1 alloy (wherein M1 is at least one element selected from Sn, Bi, and In). Optionally, an undercoat (32) of one or both of a Ni plating layer (32a) and a Cu plating layer (32b) and an overcoat of a Sn-M2 alloy plating layer (36) (wherein M2 is one or more elements selected from Bi, In, Ni, Zn, and Cu) may be formed below and above the first layer, respectively. A solid lubricating coating (38a) and a viscous liquid or semisolid lubricating coating (38b) may also be formed atop the plating layer as a lubricating coating (38).

公开(公告)号：EP1844255A4

公开(公告)日：2008-05-21

申请号：EP06700861

申请日：2006-01-11

Applicant: SUMITOMO METAL IND

Inventor： IMAI RYUICHI ,  GOTO KUNIO ,  TAKANASHI KAORU ,  OGAWA YASUHIRO

IPC: F16L15/04 ,  C23C24/04 ,  F16B33/06

CPC classification number: C10M125/02 ,  C10M125/22 ,  C10M2201/041 ,  C10M2201/065 ,  C10M2201/066 ,  C10N2240/22 ,  C10N2250/18 ,  C23C28/00 ,  C23C28/321 ,  C23C28/322 ,  C23C28/3225 ,  C23C28/324 ,  C23C28/34 ,  C23C28/345 ,  C23C28/347 ,  E21B17/042 ,  E21B17/08 ,  F16B33/008 ,  F16B33/06 ,  F16L15/004 ,  F16L58/182

Abstract: 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.

公开(公告)号：EP1378698A4

公开(公告)日：2007-10-03

申请号：EP02717104

申请日：2002-04-11

Applicant: SUMITOMO METAL IND

Inventor： GOTO KUNIO ,  MATSUMOTO KEISHI ,  NAKASUJI KAZUYUKI ,  ANRAKU TOSHIRO ,  NAGASAKU SHIGEO

IPC: F16L15/00 ,  C10M103/02 ,  C10M103/04 ,  C10M103/06 ,  C10M107/38 ,  C23C24/08 ,  C23C26/00 ,  C23C28/00 ,  C23C30/00 ,  E21B17/042 ,  F16L15/04 ,  F16L58/10 ,  F16L58/18

CPC classification number: C23C28/00 ,  C10M103/02 ,  C10M103/04 ,  C10M103/06 ,  C10M107/38 ,  C10M2201/0413 ,  C10M2201/053 ,  C10M2201/0613 ,  C10M2201/0653 ,  C10M2201/0663 ,  C10M2213/0623 ,  C10N2220/082 ,  C10N2250/121 ,  C10N2250/14 ,  C23C24/08 ,  C23C26/00 ,  C23C28/321 ,  C23C28/3225 ,  C23C28/345 ,  C23C30/00 ,  E21B17/042 ,  F16L15/001 ,  F16L15/004 ,  F16L58/1027 ,  F16L58/182

Abstract: A threaded joint for steel pipe formed of a pin and a box having a contact surface including threaded parts and a non-threaded metal contact part and capable of stably assuring a seizure resistance and an airtightness without applying compound grease thereto, wherein a solid lubricating film formed with lubricating powder (example: molybdenum disulfide) and organic or inorganic binder is formed on the contact surface of at least one of the pin and box, the ratio of the area occupied by the secondary particles of 15 to 60νm in equi-area equivalent diameter of the lubricating powder in the cross section of the solid lubricating film in thickness direction is 5 to 90%, and fiber-like filler (example: inorganic substance whisker) in addition to the lubricating powder is mixed into the solid lubricating film at the mass ratio of the fiber-like filler to binder of 0.01 to 0.5, whereby, particularly, the seizure resistance at high temperatures can be improved.

公开(公告)号：EP1411288A4

公开(公告)日：2006-08-02

申请号：EP02747701

申请日：2002-07-19

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： ANRAKU TOSHIRO ,  GOTO KUNIO ,  MATSUMOTO KEISHI ,  NAGASAKU SHIGEO

IPC: C10M171/00 ,  F16L15/04 ,  C10M109/02 ,  C10M159/24 ,  C10M169/04 ,  C23C4/04 ,  C25D15/02 ,  F16L15/00

CPC classification number: F16L15/001 ,  C10M109/02 ,  C10M159/24 ,  C10M169/045 ,  C10M171/00 ,  C10M2201/041 ,  C10M2201/062 ,  C10M2201/066 ,  C10M2203/1006 ,  C10M2209/1013 ,  C10M2217/0443 ,  C10M2219/046 ,  C10M2219/0463 ,  C10N2220/084 ,  C10N2240/00 ,  C10N2250/121 ,  C10N2250/14 ,  C10N2250/141 ,  C10N2280/00 ,  F16L58/182

Abstract: Metal-sealable threaded joint for steel tube capable of being tightened and loosened repeatedly without applying liquid lubricant containing heavy metal powder thereon, comprising a pin and a box each having a contact surface containing a screw part and a screw-less metal contact part.

公开(公告)号：EP2414718A4

公开(公告)日：2012-11-28

申请号：EP10758929

申请日：2010-03-31

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： KURANISHI TAKAO ,  GOTO KUNIO ,  MATSUMOTO KEISHI

IPC: C23C22/83 ,  C09D123/02 ,  C10M169/04 ,  C10N20/06 ,  C10N50/08 ,  C10N80/00 ,  E21B17/042

CPC classification number: C23C22/83 ,  C09D123/02 ,  C10M169/04 ,  C10M2201/041 ,  C10M2203/10 ,  C10M2205/0225 ,  C10M2209/0625 ,  C10N2220/082 ,  C10N2230/06 ,  C10N2250/08 ,  C10N2250/18 ,  C10N2280/00 ,  E21B17/042

Abstract: A solid lubricating coating formed on a contact surface of a threaded joint for pipes has a matrix of a lubricating oil-containing polymer. The lubricating oil-containing polymer has either a uniform composition or a gradient composition in which the concentration of lubricating oil decreases towards the contact surface and in which there is substantially no lubricating oil in the vicinity of the contact surface.

公开(公告)号：EP1736697A4

公开(公告)日：2012-05-02

申请号：EP05728760

申请日：2005-04-05

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： GOTO KUNIO ,  IMAI RYUICHI ,  OGAWA YASUHIRO ,  MINAMI JUNICHI

IPC: F16L15/00 ,  F16L15/04 ,  C10M103/00 ,  C10M103/02 ,  C10M103/04 ,  C10M103/06 ,  C10M125/00 ,  C10M145/20 ,  C10M149/18 ,  C10N10/02 ,  C10N10/04 ,  C10N40/00 ,  C10N50/08 ,  C10N80/00 ,  E21B17/00 ,  E21B17/042 ,  F16L15/08 ,  F16L58/18

CPC classification number: C10M103/00 ,  C10M125/00 ,  C10M2201/041 ,  C10M2201/05 ,  C10M2201/062 ,  C10M2201/066 ,  C10M2201/103 ,  C10N2240/00 ,  C10N2250/08 ,  C10N2280/00 ,  E21B17/006 ,  E21B17/042 ,  F16L15/001 ,  F16L15/006 ,  F16L15/08 ,  F16L58/182

公开(公告)号：EP1864048A4

公开(公告)日：2011-03-30

申请号：EP06731115

申请日：2006-03-29

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： IMAI RYUICHI ,  GOTO KUNIO

IPC: F16L15/04

CPC classification number: C10M177/00 ,  C10M111/04 ,  C10M2201/0413 ,  C10M2201/0623 ,  C10M2201/1053 ,  C10M2205/163 ,  C10M2207/0285 ,  C10M2207/2623 ,  C10M2209/0845 ,  C10M2209/1045 ,  C10M2219/0463 ,  C10N2210/02 ,  C10N2240/22 ,  C10N2250/10 ,  C10N2250/121 ,  C10N2250/14 ,  C10N2270/00 ,  C10N2280/00 ,  E21B17/042 ,  F16L15/004 ,  F16L58/182

公开(公告)号：EP1548346A4

公开(公告)日：2007-01-24

申请号：EP03733146

申请日：2003-05-29

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： MATSUMOTO KEISHI ,  GOTO KUNIO ,  ANRAKU TOSHIRO ,  NAGASAKU SHIGEO ,  YAMAMOTO HIDEO

IPC: F16L15/04 ,  C10M177/00 ,  F16L15/00 ,  F16L15/06

CPC classification number: C10M177/00 ,  C10M2201/062 ,  C10M2201/0623 ,  C10M2201/103 ,  C10M2201/1033 ,  C10M2203/10 ,  C10M2203/1006 ,  C10M2205/16 ,  C10M2207/0285 ,  C10M2207/2623 ,  C10M2207/281 ,  C10M2207/2815 ,  C10M2219/046 ,  C10M2219/0463 ,  C10N2240/22 ,  C10N2250/10 ,  C10N2250/14 ,  E21B17/042 ,  F16L15/004 ,  F16L58/182 ,  Y10T428/1393

Abstract: A screw joint for steel pipe, comprising pin (1) provided with a contact surface, which has screw portion (3) or (4) and nonthreaded metal contact portion (8), and box (2), wherein a lubricant coating exhibiting self-repair capability through liquid lubrication and having its surface tackiness restricted is formed on the contact surface of at least one of the pin and box so as to attain an enhancement of seizure resistance. This lubricant coating is either (1) a lubricant coating comprising a lubricant layer in liquid form at 0 to 40ºC and, superimposed thereon, a lubricant layer in solid form at 40ºC or (2) a lubricant coating in solid or semisolid form at 40ºC comprising a mixture of lubricant oil in liquid form at 0 to 40ºC and wax in solid form at 40ºC (preferably a mixture obtained by liquefying the wax after mixing in advance and effecting mutual dissolution of the lubricant oil and wax).

公开(公告)号：EP2438099A4

公开(公告)日：2012-11-28

申请号：EP10783485

申请日：2010-06-01

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS ,  CHUGOKU MARINE PAINTS

Inventor： NAGAREO TOMOMITSU ,  KAMEDA YOSHINORI ,  MATSUMOTO KEISHI ,  KAMIMURA TAKAYUKI ,  TAKAHASHI MASARU ,  GOTO KUNIO ,  IMAI RYUICHI

IPC: C08F290/06 ,  C08F265/06 ,  C09D5/08 ,  C09D163/10 ,  C09D167/07 ,  C09D175/16 ,  F16L15/04 ,  F16L58/04

CPC classification number: F16L15/001 ,  C08F290/06 ,  C09D5/086 ,  C09D175/16 ,  Y10T428/31692 ,  C08F222/1006 ,  C08F220/12 ,  C08F230/02