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公开(公告)号:CA2563213A1
公开(公告)日:2005-10-20
申请号:CA2563213
申请日:2005-04-05
Applicant: SUMITOMO METAL IND
Inventor: MINAMI JUNICHI , OGAWA YASUHIRO , IMAI RYUICHI , GOTO KUNIO
IPC: 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 , F16L15/00 , F16L15/08
Abstract: A threaded joint for steel pipe that without causing any adverse influence o n human health and environment, permits repeated fastening/unfastening of threaded joint and excels in anti-seizing property, corrosion resistance and airtightness. There is provided a threaded joint for steel pipe composed of a pin and a box, having at at least one side a threaded portion or nonthreaded metal contact portion furnished with a solid lubricant coating comprising a binder, copper powder and at least one lubricating powder selected from amon g graphite, mica, calcium carbonate and kaolin.
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公开(公告)号:PL372766A1
公开(公告)日:2005-08-08
申请号:PL37276603
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
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公开(公告)号:AR039942A1
公开(公告)日:2005-03-09
申请号:ARP030101943
申请日:2003-05-30
Applicant: VALLOUREC MANNESMANN OIL & GAS , SUMITOMO METAL IND
Inventor: MATSUMOTO KEISHI , GOTO KUNIO , ANRAKU TOSHIRO , NAGASAKU SHIGEO , YAMAMOTO HIDEO
IPC: F16L15/04 , C10M177/00 , F16L15/00 , F16L15/06
Abstract: Se describe una unión roscada para tubos de acero, la cual comprende un enchufe 1 y una caja 2, cada uno con una superficie de contacto que comprende una porción roscada 3 ó 4 y una porción metálica de contacto no roscada 8, la cual está provista con propiedades mejoradas anti-agarrotamiento mediante la formación de un recubrimiento lubricante que tiene una función de auto-reparación por lubricación líquida y gratitud disminuida. El recubrimiento lubricante es (1) un recubrimiento que comprende una capa lubricante inferior que se encuentra en forma líquida a una temperatura entre más de 0°C y menos de 40°C, y una capa de lubricante superior la cual se encuentra en forma sólida a 40°C, o (2) un recubrimiento que es semi-sólido o sólido a 40°C y que está formado por una mezcla que comprende un aceite lubricante el cual se encuentra en forma líquida a temperaturas entre más de 0°C y menos de 40°C y una cera que se encuentra en forma sólida a 40°C, habiendo sido preferiblemente calentada dicha mezcla de manera de licuar la cera y disolver entre sí la cera y el aceite lubricante.
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公开(公告)号:BR0311510A
公开(公告)日:2005-02-22
申请号:BR0311510
申请日:2003-05-29
Applicant: SUMITOMO METAL IND , VALLOUREC MANNESANN OIL & GAS
Inventor: MATSUMOTO KEISHI , GOTO KUNIO , ANRAKU TOSHIRO , NAGASAKU SHIGEO , YAMAMOTO HIDEO
IPC: F16L15/04 , C10M177/00 , F16L15/00 , F16L15/06
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公开(公告)号:BR0207618A
公开(公告)日:2004-03-09
申请号:BR0207618
申请日:2002-02-21
Applicant: SUMITOMO METAL IND
Inventor: IZAWA MAZARU , GOTO KUNIO
Abstract: A chemical conversion treatment liquid which can stably form a phosphate-type chemical conversion film on a steel material for a joint portion of an oil well steel pipe containing 0.5 - 13% Cr is developed. Using a chemical conversion treatment liquid to which a prescribed amount of potassium is added, a chemical conversion film containing a prescribed amount of potassium compounds and having a prescribed thickness can be formed on the threaded surface of a joint portion of an oil well steel pipe.
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公开(公告)号:AU2003241890A1
公开(公告)日:2003-12-19
申请号:AU2003241890
申请日:2003-05-29
Applicant: SUMITOMO METAL IND
Inventor: MATSUMOTO KEISHI , GOTO KUNIO , ANRAKU TOSHIRO , NAGASAKU SHIGEO , YAMAMOTO HIDEO
IPC: F16L15/04 , C10M177/00 , F16L15/00 , F16L15/06
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公开(公告)号:NO20150563A
公开(公告)日:2003-12-10
申请号:NO20150563
申请日:2015-05-07
Applicant: SUMITOMO METAL IND , VALLOUREC MANNESMANN OIL & GAS
Inventor: GOTO KUNIO
IPC: C10M111/04 , C10M177/00 , C23C24/08 , E21B17/042 , F16L15/00 , F16L15/04 , F16L58/18
CPC classification number: E21B17/042 , C10M111/04 , C10M177/00 , C10M2201/0413 , C10M2201/0613 , C10M2201/0623 , C10M2201/0653 , C10M2201/0663 , C10M2201/0803 , C10M2201/084 , C10M2209/1003 , C10M2209/1013 , C10M2217/0443 , C10N2230/06 , C10N2240/22 , C10N2250/08 , C10N2250/121 , C10N2270/00 , C10N2280/00 , C23C24/08 , F16L15/00 , F16L15/001 , F16L15/004 , F16L58/182 , Y10T428/139 , Y10T428/1393 , Y10T428/31529 , Y10T428/31678
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公开(公告)号:NO20033344D0
公开(公告)日:2003-07-24
申请号:NO20033344
申请日:2003-07-24
Applicant: SUMITOMO METAL IND
Inventor: GOTO KUNIO , ANRAKU TOSHIRO
IPC: C10M103/00 , E21B17/042 , C10M103/02 , C10M103/06 , C10M105/72 , C10M105/74 , C10M107/38 , C10M143/02 , C10M145/20 , C10M145/24 , C10M149/18 , C10M151/04 , C10M155/00 , C10M155/02 , C10M159/20 , C10M159/22 , C10M159/24 , C10N10/02 , C10N10/04 , C10N10/06 , C10N10/08 , C10N10/12 , C10N10/14 , C10N20/00 , C10N30/06 , C10N30/12 , C10N40/00 , C10N50/02 , C10N50/08 , F16L15/00 , F16L15/04 , F16L58/08 , F16L58/18 , F16L
Abstract: In a threaded joint for steel pipes comprising a pin and a box capable of mating with each other, the pin having an externally threaded portion and an unthreaded metal contact portion as a mating surface, and the box having an internally threaded portion and an unthreaded metal contact portion as a mating surface, the mating surface of at least one of the pin and the box is coated with a lower porous zinc or zinc alloy layer by blast plating and with an upper coating which is either a solid lubricating coating (comprising a lubricating powder in an organic or in organic binder) or a liquid, heavy metal powder-free coating (e.g., a liquid coating based on a highly basic organic acid metal salt such as a highly basic metal sulfonate). The threaded joint exhibits improved galling resistance, rust-preventing properties, and gas tightness even after exposure to a high temperature and makes it possible to perform repeated fastening (make-up) and loosening (break-out) in a high-temperature oil well without application of a compound grease containing a heavy metal powder.
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公开(公告)号:CA2608043A1
公开(公告)日:2002-10-24
申请号:CA2608043
申请日:2002-04-11
Applicant: SUMITOMO METAL IND
Inventor: NAKASUJI KAZUYUKI , NAGASAKU SHIGEO , ANRAKU TOSHIRO , MATSUMOTO KEISHI , GOTO KUNIO
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
Abstract: A threaded joint for steel pipe formed on 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 galling resistance and an airtightness without applying compound grease threreto, wherein a solid lubricating film formed with lubricating powder (e.g., molybdenum disulfide) and organic or inorganic binder is formed on the contact surface of at least one of the pin and the box, the ratio of area occupied by the secondary particles of 15 to 60 µm 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 (e.g., 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 the binder of 0.01 to 0.5, whereby, particulary, the galling resistance at high temperatures can be improved.
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公开(公告)号:NO342784B1
公开(公告)日:2018-08-06
申请号:NO20073204
申请日:2007-06-25
Inventor: GOTO KUNIO , IMAI RYUICHI , OGAWA YASUHIRO , TAKANASHI KAORU
Abstract: En gjenget skjøt for stålrør omfatter en bolt (1) og en boks (2) som hver har et gjenget parti (3a eller 3b) og et ugjenget metall-til-metall-kontaktparti (4a eller 4b) som kontaktoverflater som kontakter hverandre når skjøten er festet. Kontaktoverflatene (3a og 4a og/eller 3b og 4b) til minst én av bolten (1) og boksen (2) er belagt med et nedre lag av et fast smørende belegg som inneholder et fast smørende pulver (f.eks. molybden-disulfid, wolfram-disulfid eller grafitt) og et bindemiddel (f.eks. et epoksy eller annet organisk harpiks) og et øvre lag av et fast korrosjonsbeskyttende belegg formet av et organisk harpiks som ikke inneholder faste partikler.
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