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1. WO2008108263 - SCREW JOINT FOR STEEL PIPE

Publication Number WO/2008/108263
Publication Date 12.09.2008
International Application No. PCT/JP2008/053492
International Filing Date 28.02.2008
IPC
F16L 15/04 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
15Screw-threaded joints; Forms of screw-threads for such joints
04with additional sealings
C10M 101/02 2006.1
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
101Lubricating compositions characterised by the base-material being a mineral or fatty oil
02Petroleum fractions
C10M 103/02 2006.1
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
103Lubricating compositions characterised by the base-material being an inorganic material
02Carbon; Graphite
C10M 159/06 2006.1
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
159Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
02Natural products
06Waxes, e.g. ozocerite, ceresine, petrolatum or slack-wax
C10M 159/24 2006.1
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
159Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
12Reaction products
20Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
24containing sulfonic radicals
C23C 26/00 2006.1
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
26Coating not provided for in groups C23C2/-C23C24/87
CPC
C10M 111/04
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
111Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
04at least one of them being a macromolecular organic compound
C10M 169/042
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
169Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
04Mixtures of base-materials and additives
042the additives being compounds of unknown or incompletely defined constitution only
C10M 2201/0413
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
2201Inorganic compounds or elements as ingredients in lubricant compositions
04Elements
041Carbon; Graphite; Carbon black
0413used as base material
C10M 2201/0423
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
2201Inorganic compounds or elements as ingredients in lubricant compositions
04Elements
041Carbon; Graphite; Carbon black
042halogenated, i.e. graphite fluoride
0423used as base material
C10M 2203/1006
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
2203Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
10Petroleum or coal fractions, e.g. tars, solvents, bitumen
1006used as base material
C10M 2205/143
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
2205Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
14Synthetic waxes, e.g. polythene waxes
143used as base material
Applicants
  • 住友金属工業株式会社 SUMITOMO METAL INDUSTRIES, LTD. [JP]/[JP] (AllExceptUS)
  • バローレック・マネスマン・オイル・アンド・ガス・フランス VALLOUREC MANNESMANN OIL & GAS FRANCE [FR]/[FR] (AllExceptUS)
  • 木本 雅也 KIMOTO, Masanari [JP]/[JP] (UsOnly)
  • 後藤 邦夫 GOTO, Kunio [JP]/[JP] (UsOnly)
  • 高橋 克 TAKAHASHI, Masaru [JP]/[JP] (UsOnly)
  • 福井 国博 FUKUI, Kunihiro [JP]/[JP] (UsOnly)
  • 永作 重夫 NAGASAKU, Shigeo [JP]/[JP] (UsOnly)
  • 今井 竜一 IMAI, Ryuichi [JP]/[JP] (UsOnly)
  • 大西 滋夫 ONISHI, Shigeo [JP]/[JP] (UsOnly)
  • 池上 弘明 IKEGAMI, Hiroaki [JP]/[JP] (UsOnly)
Inventors
  • 木本 雅也 KIMOTO, Masanari
  • 後藤 邦夫 GOTO, Kunio
  • 高橋 克 TAKAHASHI, Masaru
  • 福井 国博 FUKUI, Kunihiro
  • 永作 重夫 NAGASAKU, Shigeo
  • 今井 竜一 IMAI, Ryuichi
  • 大西 滋夫 ONISHI, Shigeo
  • 池上 弘明 IKEGAMI, Hiroaki
Agents
  • 広瀬 章一 HIROSE, Shoichi
Priority Data
2007-05290502.03.2007JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) SCREW JOINT FOR STEEL PIPE
(FR) JOINT À VIS POUR TUYAU EN ACIER
(JA) 鋼管用ねじ継手
Abstract
(EN) A screw joint for steel pipe of pin/box type having contact surfaces (30) including a threaded part and an unthreaded metal contact part is improved with respect to the leakage resistance, galling resistance and corrosion resistance, especially that to crevice corrosion. The contact surface of at least one of the pin and the box is covered with a first plating layer (34) of Cu-Zn alloy or Cu-Zn-M1 alloy (M1 is at least one selected from among Sn, Bi and In). The first plating layer on its downside and upside may be provided with a lower layer (32) consisting of Ni plating layer (32a) and/or Cu plating layer (32b) (one or both of the layers) and an upper layer of Sn-M2 alloy (M2 is at least one element selected from among Bi, In, Ni, Zn and Cu) plating layer (36). The plating layers may be overlaid with a lubricant coating (38) selected from among a solid lubricant coating (38a) and a viscous liquid or semisolid lubricant coating (38b).
(FR) L'invention concerne un joint à vis pour tuyau en acier, de type partie mâle/partie femelle et ayant des surfaces de contact (30) comprenant une partie filetée et une partie à contact métallique non filetée, lequel joint à vis est amélioré en ce qui concerne la résistance aux fuites, la résistance au grippage et la résistance à la corrosion, notamment la corrosion caverneuse. La surface de contact de la partie mâle et de la partie femelle est recouverte d'une première couche de plaquage (34) d'alliage Cu-Zn ou d'alliage Cu-Zn-M1 (M1 étant au moins un élément choisi dans le groupe constitué par Sn, Bi et In). La première couche de plaquage, sur son côté inférieur et son côté supérieur, peut comporter une couche inférieure (32) consistant en une couche de plaquage de Ni (32a) et/ou une couche de plaquage de Cu (32b) (l'une des couches ou les deux) et en une couche supérieure d'une couche de plaquage d'alliage Sn-M2 (36) (M2 est au moins un élément choisi dans le groupe constitué par Bi, In, Ni, Zn et Cu). Les couches de plaquage peuvent être revêtues d'un revêtement lubrifiant (38) choisi dans le groupe constitué par un revêtement lubrifiant solide (38a) et un revêtement lubrifiant visqueux liquide ou semi-solide (38b).
(JA)  ねじ部とねじ無し金属接触部とを含む接触表面30を備えたピン/ボックス型の鋼管用ねじ継手の耐漏れ性、耐ゴーリング性、及び特に隙間腐食に対する耐食性を改善する。ピンとボックスの少なくとも一方の接触表面がCu-Zn合金又はCu-Zn-M1合金(M1は、Sn、Bi及びInから選ばれた1種又は2種以上)からなる第1のめっき層34で被覆される。Niめっき層32a及び/又はCuめっき層32bの一方又は両方からなる下層32、及びSn-M2合金(M2はBi、In、Ni、Zn、及びCuから選ばれた1種又は2種以上の元素)めっき層36からなる上層を第1めっき層の下及び上に形成してもよい。めっき層の上には固体潤滑被膜38aと粘稠液体又は半固体潤滑被膜38bを潤滑皮膜38として形成することができる。
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