公开(公告)号：MY141943A

公开(公告)日：2010-07-30

申请号：MYPI20015522

申请日：2001-12-04

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： GOTO KUNIO ,  NAGASAKU SHIGEO ,  YAMAMOTO HIDEO

IPC: C10M159/20 ,  C10M109/02 ,  C10M111/04 ,  C10M121/02 ,  C10M129/16 ,  C10M135/06 ,  C10M135/20 ,  C10M137/02 ,  C10M137/04 ,  C10M137/10 ,  C10M143/02 ,  C10M143/04 ,  C10M143/16 ,  C10M145/14 ,  C10M149/18 ,  C10M159/22 ,  C10M159/24 ,  C10M165/00 ,  C10M167/00 ,  C10M169/04 ,  C10N10/04 ,  C10N10/12 ,  C10N20/00 ,  C10N20/06 ,  C10N30/06 ,  C10N30/12 ,  C10N40/00 ,  C10N40/34 ,  C10N50/02 ,  E21B17/042 ,  F16L15/04

Abstract: A LUBRICATING COATING COMPOSITION IN WHICH AT LEAST ONE BASIC LUBRICANT SELECTED FROM A BASIC SULFONATE, A BASIC SALICYLATE, AND A BASIC PHENATE IS DISSOLVED IN A VOLATILE SOLVENT IS APPLIED TO THE FRICTIONAL SURFACE OF A BOX (1A) AND A PIN (2A) CONSTITUTING A THREADED JOINT FOR OIL WELL PIPES. THE COMPOSITION MAY FURTHER CONTAIN ONE OR MORE OF A THERMOPLASTIC RESIN POWDER, ANOTHER LUBRICANT, AND AN EXTREME PRESSURE AGENT. THE SURFACE ROUGHNESS OF THE FRICTIONAL SURFACES (12) PREFERABLY HAS AN RMAX IN THE RANGE OF 5-40 MICROMETERS.

公开(公告)号：RO121035B1

公开(公告)日：2006-11-30

申请号：RO200300489

申请日：2001-12-04

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： GOTO KUNIO ,  NAGASAKU SHIGEO ,  YAMAMOTO HIDEO

IPC: C10M111/04 ,  C10M109/02 ,  C10M121/02 ,  C10M129/16 ,  C10M135/06 ,  C10M135/20 ,  C10M137/02 ,  C10M137/04 ,  C10M137/10 ,  C10M143/02 ,  C10M143/04 ,  C10M143/16 ,  C10M145/14 ,  C10M149/18 ,  C10M159/20 ,  C10M159/22 ,  C10M159/24 ,  C10M165/00 ,  C10M167/00 ,  C10M169/04 ,  C10N10/04 ,  C10N10/12 ,  C10N20/00 ,  C10N20/06 ,  C10N30/06 ,  C10N30/12 ,  C10N40/00 ,  C10N40/34 ,  C10N50/02 ,  E21B17/042 ,  F16L15/04

Abstract: Invenţia se referă la o compoziţie de acoperire lubrifiantă, pentru ungerea unei îmbinări cu filet, şi la o metodă de ungere a unei îmbinări cu filet, care foloseşte această compoziţie. Compoziţia conform invenţiei este constituită, în procente în greutate, din: (A) 25...80% un solvent organic volatil şi (B) 75...20% cel puţin un component nevolatil, în care 100 de părţi în greutate, din componentul (B) nevolatil, constă, în principal, din 10...100 părţi în greutatedin cel puţin un lubrifiant ales dintre un sulfonat bazic, un salicilat bazic şi un fenat bazic, care este dizolvat, cel puţin parţial, în solventul (A), până la 30 părţi în greutate dintr-o răşină termoplastică, până la 90 părţi în greutate dintr-un lubrifiant, altul decât lubrifiantul bazic, şi până la 15 părţi în greutate dintr-un agent de presiune extremă.

公开(公告)号：CA2383894C

公开(公告)日：2006-01-24

申请号：CA2383894

申请日：2000-08-24

Applicant: SUMITOMO METAL IND

Inventor： YAMAMOTO HIDEO ,  NAKASUJI KAZUYUKI

IPC: F16L15/04 ,  C23C26/00 ,  C23C28/00 ,  C23C30/00 ,  E21B17/042 ,  F16L15/00 ,  F16L58/18

Abstract: A threaded joint for an oil well pipe, characterized as having a screw part and/or a metal-metal contacting part with no screws which have, formed thereon, 1) a lubricating coating of an inorganic polymer having a skeleton of M (metal atom)-O (oxygen) and containing a solid lubricating agent dispersed and incorporated therein, 2) a phosphate coating and the above lubricating coating of an inorganic polymer, 3) a Cu plating layer, and the above lubricating coating of an inorganic polymer or a lubricating coating of a resin containing a solid lubricating agent dispersed and incorporated therei n, or 4) the above lubricating coating of an inorganic polymer or the above lubricating coating of a resin, and a rust-inhibiting coating containing an alkali metal or alkaline earth metal salt of a carboxylic acid. The threaded joint for an oil well pipe can prevent the occurrence of galling in repeated make-up and break-out operations and at the same time secure high oil- tightness, with no use of a liquid lubricating agent such as a compounded grease.

公开(公告)号：CA2487361A1

公开(公告)日：2003-12-11

申请号：CA2487361

申请日：2003-05-29

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

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

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

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 b ox so as to attain an enhancement of seizure resistance. This lubricant coating is either (1) a lubricant coating comprising a lubricant layer in liquid for m at 0 to 40.ordm.C and, superimposed thereon, a lubricant layer in solid form at 40.ordm.C or (2) a lubricant coating in solid or semisolid form at 40.ordm.C comprising a mixture of lubricant oil in liquid form at 0 to 40.ordm.C and wax in solid form at 40.ordm.C (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：AR031897A1

公开(公告)日：2003-10-08

申请号：ARP010105637

申请日：2001-12-04

Applicant: VALLOUREC MANNESMANN OIL & GAS ,  SUMITOMO METAL IND

Inventor： GOTO KUNIO ,  NAGASAKU SIGEO ,  YAMAMOTO HIDEO

IPC: C10M109/02 ,  C10M111/04 ,  C10M121/02 ,  C10M129/16 ,  C10M135/06 ,  C10M135/20 ,  C10M137/02 ,  C10M137/04 ,  C10M137/10 ,  C10M143/02 ,  C10M143/04 ,  C10M143/16 ,  C10M145/14 ,  C10M149/18 ,  C10M159/20 ,  C10M159/22 ,  C10M159/24 ,  C10M165/00 ,  C10M167/00 ,  C10M169/04 ,  C10N10/04 ,  C10N10/12 ,  C10N20/00 ,  C10N20/06 ,  C10N30/06 ,  C10N30/12 ,  C10N40/00 ,  C10N40/34 ,  C10N50/02 ,  E21B17/042 ,  F16L15/04

Abstract: Composicion de recubrimiento lubricante en la cual al menos un lubricante básico seleccionado entre un sulfonato básico, un salicilato básico y un fenato básico es disuelto en un solvente base volátil, siendo aplicada a la superficie friccionante de una caja y un enchufe que constituyen una union roscada para un tubo para pozo petrolífero. La composicion puede contener además una o más resinas termoplásticas en polvo, otro lubricante, y un agente de extrema presion. La rugosidad superficial de las superficies friccionantes tiene preferiblemente un Rmax comprendido entre 5 y 40 micrometros.

公开(公告)号：AU6727100A

公开(公告)日：2001-03-26

申请号：AU6727100

申请日：2000-08-24

Applicant: SUMITOMO METAL IND

Inventor： YAMAMOTO HIDEO ,  NAKASUJI KAZUYUKI

IPC: C23C28/00 ,  C23C30/00 ,  E21B17/042 ,  F16L15/00 ,  F16L15/04 ,  F16L58/18 ,  C23C26/00

公开(公告)号：CA2383894A1

公开(公告)日：2001-03-08

申请号：CA2383894

申请日：2000-08-24

Applicant: SUMITOMO METAL IND

Inventor： NAKASUJI KAZUYUKI ,  YAMAMOTO HIDEO

IPC: C23C28/00 ,  C23C30/00 ,  E21B17/042 ,  F16L15/00 ,  F16L15/04 ,  F16L58/18 ,  C23C26/00

Abstract: A threaded joint for an oil well pipe, characterized as having a screw part and/or a metal-metal contacting part with no screws which have, formed thereon, 1) a lubricating coating of an inorganic polymer having a skeleton of M (metal atom)-O (oxygen) and containing a solid lubricating agent dispersed and incorporated therein, 2) a phosphate coating and the above lubricating coating of an inorganic polymer, 3) a Cu plating layer, and the above lubricating coating of an inorganic polymer or a lubricating coating of a resin containing a solid lubricating agent dispersed and incorporated therei n, or 4) the above lubricating coating of an inorganic polymer or the above lubricating coating of a resin, and a rust-inhibiting coating containing an alkali metal or alkaline earth metal salt of a carboxylic acid. The threaded joint for an oil well pipe can prevent the occurrence of galling in repeated make-up and break-out operations and at the same time secure high oil- tightness, with no use of a liquid lubricating agent such as a compounded grease.

公开(公告)号：DE69207860T2

公开(公告)日：1996-09-05

申请号：DE69207860

申请日：1992-11-04

Applicant: SUMITOMO METAL IND

Inventor： AZUMA SHIGEKI ,  KUSABA YOSHIAKI ,  MIYUKI HIDEAKI ,  YAMAMOTO HIDEO

IPC: C23C22/62 ,  B21B27/10 ,  B21B45/02 ,  C23C22/64 ,  C23C22/68

Abstract: A method for improving the resistance to surface roughening of tungsten-containing metallic articles such as cutting tools and hot mill rolls made of a cemented carbide or high-speed steel and extending the lifetime thereof. The method comprises treating a metallic article with an aqueous alkaline solution containing calcium ions and optionally tungstate ions having a pH greater than 8 so as to form a coating of calcium tungstate on the surface of the metallic article. In hot rolling with tungsten-containing rolls, the aqueous solution can be used as at least part of a cooling water to cool the rolls, thereby extending the period before roll replacement becomes necessary due to surface roughening and decreasing the frequency of roll dressing required during hot rolling.

公开(公告)号：ES2085534T3

公开(公告)日：1996-06-01

申请号：ES92118909

申请日：1992-11-04

Applicant: SUMITOMO METAL IND

Inventor： AZUMA SHIGEKI ,  KUSABA YOSHIAKI ,  MIYUKI HIDEAKI ,  YAMAMOTO HIDEO

IPC: C23C22/62 ,  B21B27/10 ,  B21B45/02 ,  C23C22/64 ,  C23C22/68

Abstract: A method for improving the resistance to surface roughening of tungsten-containing metallic articles such as cutting tools and hot mill rolls made of a cemented carbide or high-speed steel and extending the lifetime thereof. The method comprises treating a metallic article with an aqueous alkaline solution containing calcium ions and optionally tungstate ions having a pH greater than 8 so as to form a coating of calcium tungstate on the surface of the metallic article. In hot rolling with tungsten-containing rolls, the aqueous solution can be used as at least part of a cooling water to cool the rolls, thereby extending the period before roll replacement becomes necessary due to surface roughening and decreasing the frequency of roll dressing required during hot rolling.

公开(公告)号：ES2334658T3

公开(公告)日：2010-03-15

申请号：ES03733146

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

Abstract: Una unión roscada para conductos de acero que comprende una pieza macho (1) y una pieza hembra (2), teniendo cada una una superficie de contacto que incluye una parte roscada (3 ó 4) y una parte de contacto metálica no roscada (8) y que tiene un revestimiento de lubricación en la superficie de contacto de al menos una de la pieza macho (1) y la pieza hembra (2), caracterizada por que el revestimiento de lubricación comprende una capa de lubricante inferior que está en forma líquida en el intervalo de temperatura de superior a 0ºC e inferior a 40ºC y una capa de lubricante superior que está en forma sólida a 40ºC.