EP0291373A1 - Rohrförmiger Stab für die Behandlung der Innenfläche eines Rohres - Google Patents

Rohrförmiger Stab für die Behandlung der Innenfläche eines Rohres Download PDF

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Publication number
EP0291373A1
EP0291373A1 EP88400998A EP88400998A EP0291373A1 EP 0291373 A1 EP0291373 A1 EP 0291373A1 EP 88400998 A EP88400998 A EP 88400998A EP 88400998 A EP88400998 A EP 88400998A EP 0291373 A1 EP0291373 A1 EP 0291373A1
Authority
EP
European Patent Office
Prior art keywords
rod
tube
piston
tubular
seal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88400998A
Other languages
English (en)
French (fr)
Other versions
EP0291373B1 (de
Inventor
Alain Vouzellaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Areva NP SAS
Original Assignee
Framatome SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Framatome SA filed Critical Framatome SA
Publication of EP0291373A1 publication Critical patent/EP0291373A1/de
Application granted granted Critical
Publication of EP0291373B1 publication Critical patent/EP0291373B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/002—Component parts or details of steam boilers specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for
    • F22B37/003—Maintenance, repairing or inspecting equipment positioned in or via the headers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/04—Tubes; Rings; Hollow bodies

Definitions

  • the invention relates to a tubular rod for treating the inner surface of a tube with a liquid supplied by the rod, comprising a sealing device arranged around the tubular body of the rod.
  • Rods of tubular shape are known which make it possible to establish a circulation of treatment liquid in contact with an area of a tube to be treated and, optionally, to bring an electric current to effect electrolysis of the liquid in this area.
  • such a rod can be used to produce a metallic coating such as nickel plating inside a tube.
  • Such treatment is very often carried out in an area of the tube located at the exit face of the tube plate, that is to say at a short distance from one of the inlets of the tube, this distance being less at one meter.
  • the treatment rods of the internal surface of the steam generator tubes must include sealing devices making it possible to isolate from adjacent areas, the part of the tube in which the treatment is carried out, to avoid electrolyte leakage from and else in this area.
  • Such treatment rods comprising sealing devices have been used quite commonly, for the treatment of areas of the tube located inside or in the vicinity of the tube plate.
  • the cane providing the treatment is maintained and centered in the tube to be treated by its base which comprises several centering elements which can be introduced into the tubes adjacent to the tube to be treated.
  • the base part of the cane also includes means for ensuring the distribution of fluid in the cane and in particular the fluid used for the treatment.
  • Such a treatment rod and the sealing device associated with it are of a complex structure and have many parts, so that it is difficult to ensure correct operation and that leaks may appear. liquid electrolyte at the ends of the area to be treated.
  • the object of the invention is therefore to propose a tubular rod for the treatment of the surface. interior of a tube by a liquid supplied by the cane comprising a sealing device arranged around the tubular body of the cane and making it possible to isolate a part of the interior surface of the tube extending along its length, with respect to the zones adjacent to the tube, this tubular rod having a simple structure and making it possible to ensure a very good seal against the liquid on either side of the zone to be treated.
  • the sealing device comprises two sets spaced along the length of the rod, each consisting of an annular piston mounted movable in the axial direction around the body of the rod, at least one flexible annular seal disposed around the body of the rod and interposed, in the axial direction, between one end of the piston and a radial support rim and a remote actuation means of the piston, for its displacement in the axial direction in one direction or in the 'other.
  • FIGS. 1, 2a and 2b there is shown a first embodiment of a nickel-plating rod 1 making it possible to coat the inside of a tube.
  • This nickel plating rod 1 is produced in entirely rigid form and comprises the rod itself 1a which is introduced into the tube and a distributor block 1b allowing the distribution of fluid in the rod, rigidly connected to one of the ends of the rod itself. said 1a.
  • Part 1a comprises a body 2 of tubular shape constituted by a set of envelopes and pieces of tubular shape such as 2a and 2b.
  • the sealing device of the rod comprises two sealing assemblies 5 and 6 arranged around the body 2 and spaced along the axial direction 4 of the rod 1a.
  • the body 2 has at its end a head 7 of profiled shape.
  • the rod 1a also comprises, above the distribution block 1b, a ring 9 slidably mounted on the external surface of the body 2 of the rod and which can be locked in axial position by means of a screw 8.
  • the ring 9 comes to bear on the entry face of the tube plate on which the end is flush inlet mite of the tube to be treated and makes it possible to adjust the length of the rod 1a introduced into the tube. This adjustment makes it possible to place the active area of the nickel-plating rod located between the sealing assemblies 5 and 6 in accordance with the area of the tube to be treated.
  • the distribution block 1b is internally machined to constitute a channel 10 for supplying the cane with electrolyte liquid and a channel 11 for recovering the electrolyte having circulated in the cane.
  • the channels 10 and 11 open onto the end face 12 of the block 1b at the level of fittings such as 13 allowing their junction with a flexible pipe.
  • the channel 10 communicates inside the block 1b, with the outer annular conduit 14 of the tubular body 2.
  • the annular conduit 14 opens to the exterior of the body 2, through an annular opening 15 located just above the assembly sealing 6 and limited by two parts with frustoconical surface 16 and 17.
  • the part 16 is integral with the tubular envelope 2b of the body 2 and the part 17, with a cuff 18 constituting the outer wall of the annular passage 14 and connected at its lower part to a thick sleeve 19 itself fixed to the distributor block 1b at its lower part. All of the envelopes and tubular parts 2a, 2b, 18 and 19 constitute the tubular body 2.
  • the envelopes 2a and 2b are pierced at their upper part, below the sealing assembly 5, by openings 21 placing in communication inside the tube 2a with the space between the active part of the rod 1a located between the sealing assemblies 5 and 6 and the inner surface of the tube 20 which is coated.
  • the electrolyte liquid sent into the annular passage 14 through the supply channel 10 flows the outside of the body 2 of the cane through the annular opening 15.
  • the liquid comes into contact with the interior surface of the tube over the entire length of the area to be treated, then is recovered inside the tube 2a by the openings 21.
  • the electrolyte liquid then returns through the central conduit formed by the tubular casing 2a, at the entrance to the channel 11.
  • the tubular casing 2b of the body 2 of the rod constituting the electrode is brought to a certain potential relative to the tube 20 thanks to an electrical connector 23 connected to the base of the distributor block 1b.
  • the electrolysis of the liquid flowing along the inner wall of the tube 20 is thus carried out in the treatment zone, which makes it possible to deposit a layer of nickel coating on the inner surface of the tube.
  • the sealing assemblies 5 and 6 of the nickel-plating rod 1 which will be described below make it possible to achieve perfect confinement of the electrolyte liquid and to avoid any leakage on either side of the zone of the tube to be coated.
  • the body 2 of the rod carries at its upper part an end piece 24 on which the head is fixed 7.
  • the piece 24 and the head 7 define between them an annular chamber 25 in which a piston 26 of annular shape is mounted movable in the direction of the axis 4 of the rod.
  • the piston 26 is mounted leaktight in the annular chamber 25 by means of segment seals 27.
  • the annular chamber 25 communicates with a channel 28 machined inside the end piece 24 and itself in communication with a directed tube 29 along the axis 4 of the rod and connected at its lower part, at the level of the distribution block 1b, to a nozzle 30 per putting to connect it, by a flexible pipe, to a compressed air supply means.
  • the sleeves 18 and 19 delimit between them an annular chamber 35 having as axis the axis 4 of the rod and enclosing a piston 36 mounted movably and sealed in the chamber 35 by means of segment seals 37.
  • the chamber 35 is supplied with compressed air via a duct 39 connected to a chamber formed in the distribution block 1b into which the nozzle 30 opens.
  • the pistons 26 and 36 can therefore be actuated simultaneously when the nozzle 30 is supplied with compressed air.
  • the piston 36 then comes to bear, by means of a plastic ring 41, on a flexible annular rubber seal 42 threaded on the external surface of the sleeve 18.
  • the sleeve 18 has an upper shoulder 43 constituting a radial rim support for the end of the annular seal 42 opposite the ring 41 and the piston 36.
  • the upward movement of the piston 36 under the effect of the compressed air produces compression and radial expansion of the seal 42 which then comes into tight contact with the interior surface of the tube 20.
  • the supply of compressed air to the nozzle 30 makes it possible to perfectly isolate the zone of the tube 20 in which the nickel-plating is carried out as described above.
  • FIG. 3 an alternative embodiment of the sealing devices 5 and 6 is seen, the corresponding elements in FIGS. 2a and 2b on the one hand and 3 on the other hand bearing the same references.
  • the end surfaces 45 and 46 of the pistons 26 and 36 respectively and the bearing surfaces 47 and 48 of the part 34 and of the sleeve 18 respectively have been chamfered, the chamfer surfaces opposite two to two being inclined in different directions.
  • the pistons 26 and 36 come into contact with the elastic seals 32 and 42 respectively, without the interposition of a plastic ring.
  • the annular pistons 26 and 36 whose ends are chamfered compress the elastic seals 32 and 42 which are retained by the chamfered shoulders 47 and 48. This produces compression of the elastic seals promoting a radial expansion of the central part of these elastic seals coming into contact with the tube 20.
  • the passage openings 15 and 21 of the electrolyte fluid have also been produced in a slightly different manner from the embodiment shown in FIGS. 2a and 2b.
  • the circulation of the electrolyte fluid from the conduit 14 and its return by the central part of the tubular body 2, around the air duct 29, is identical to what has been described with reference to Figures 2a and 2b.
  • the supply of electrolytic liquid to the cane is interrupted and the electrolytic liquid is recovered by the conduit 11 and the nozzle 13. If there remains debris or waste in the tube at l after the nickel plating operation, these are recovered via an upper cylindrical recess 50 and a conduit 51 machined in the distribution block 1b, the conduit 51 being in communication with a nozzle 52 d disposal of waste or debris.
  • a nickel-plating rod 1 is seen in the service position inside a tube 20 crimped in the tube plate 60 of a steam generator of a pressurized water nuclear reactor.
  • the steam generator comprises, below the inlet face 60a of the tube plate 60 on which the end of the tube 20 is flush, a water box 61 in which a manhole or manhole 62 is provided.
  • a carrier device 63 comprising an arm 64 at the end of which is fixed a carrier 65 to which is connected an end ring 66 of a flexible guide duct 67.
  • the device 63 of conventional type makes it possible to move the carrier 65 in order to bring it successively in coincidence with the inlet end of each of the tubes to be treated.
  • the nickel-plating rod 1 comprises a rigid end part 70 which can be produced like the part of the rigid rod described above and shown in FIGS. 2a and 2b and 3.
  • This part rigid comprises two sealing assemblies 75 and 76 whose structure and operation are identical to those of the sealing assemblies 5 and 6 described above.
  • the nickel-plating rod 71 shown in FIG. 4 also includes a distribution block 71b identical to the block 1b shown in FIG. 1.
  • This distribution block 71b is fixed on a support 73 located outside the water box 61, on which is fixed the end of the flexible guide duct 67 opposite the carrier 65 and the inlet of the tube.
  • the rigid part 70 of the nickel plating rod is connected to the distribution block 71b by a body 72 constituted by flexible coaxial conduits allowing the supply of fluid and electric current to the rigid part 70 of the nickel plating rod.
  • the device shown in FIG. 4 makes it possible to introduce a nickel-plating rod into a steam generator tube and to control the nickel-plating operation, from the outside of the water box.
  • the operations can be carried out by remote control of the carrier device 63, remote introduction into the desired position of the rod and control from the outside, at the distribution block 71b, of the operation of coating the tube.
  • nickel plating can be carried out in the straight part of the tube 20 at any height above the tube plate 60.
  • the nickel-plating rod comprises a body 82 of tubular shape constituted by a simple tube 83 secured at its upper part to an end piece 84 and connected at its lower part to a sheath 85 coaxial with the tube 83, located outside of the tube 83 and forming therewith an annular conduit 89 allowing the passage of the electrolyte liquid.
  • the tube 83 and the sheath 85 have for common axis the axis 4 which coincides with the axis of the tube, when the nickel-plating rod 80 is in the service position in the tube 20.
  • tube 83 and the sheath 85 can be replaced, over part of their length, from a place located below the sealing assembly 86, by flexible conduits connected to one from their ends to the rigid part of the body 82 of the rod 80 and at their other end to a fluid distribution block, not shown.
  • the embodiment using the flexible conduit makes it possible to introduce and control the nickel-plating rod, from the outside of the water box of a steam generator.
  • a profiled head 87 secured to a piston 88.
  • the seal between the head 87 and the part 84 is ensured by a seal 90.
  • a helical spring 91 is interposed between the part 84 forming part of the tubular body 82 of the rod and the piston 88.
  • the spring 91 applies the piston 88 to a first elastic annular seal 92a which itself transmits the pressure from the piston 88 to a second annular seal 92b, via a support spacer 93.
  • the second annular seal 92b is supported on a radial flange 94 of a sleeve 95 constituting the electrode of the nickel-plating rod 80.
  • the sleeve 95 mounted freely sliding around the tube 83 of the body 82 of the nickel-plating rod.
  • the lower part of the sleeve 95 comes to bear by a radial rim 96, on a first annular seal 97a which itself bears, by means of a spacer 98, on a second annular seal 97b bears on the end of the sheath 85 integral with the tube 83 of the body 82 of the rod.
  • the electrolyte liquid is introduced into the tube, outside the body 82 of the rod, through the annular conduit 89 communicating, at its upper end, with openings 100 passing through the electrode 95.
  • the electrolyte liquid circulates between the electrode 95 and the internal surface of the tube 20 before entering the openings 101 passing through the electrode 95 and the tube 83 of the body 82 of the nickel-plating rod.
  • the electrolyte liquid then returns through the interior of the tube 83, to the distribution block connected to the end, not shown, of the nickel-plating rod 80.
  • the nickel-plating rod 80 also comprises, along its axis 4, a compressed air supply duct 103 connected to the internal bore of the end piece 84 of the body 82, opening into a chamber 104 formed between the head 87 and the end of the part 84.
  • the chamber 104 is sealed using the gasket 90.
  • the nickel-plating rod 80 can then be moved inside the tube 20, for example to be extracted from this tube, the seals remaining in the non-expanded position as long as the compressed air pressure is maintained in the chamber 104.
  • the device shown in FIG. 5 is said to be positive security, since the action of the spring 91 makes it possible to automatically seal between the seals and the inner surface of the tube and it is necessary to exert pressure to decompress the joints and make them leave contact with the internal wall of the tube 20.
  • FIGS. 6 and 7 an embodiment of the lower part of a nickel-plating rod of the type shown in FIG. 5, that is to say with positive security, is seen.
  • the corresponding elements in Figures 5 on the one hand and 6 and 7 on the other hand have been designated by the same references.
  • the tube 83 of the tubular body 82 of the rod is connected, at its lower part, to a fitting 106 comprising a tip 107 with lug ensuring its assembly with the sheath 85.
  • the sheath 85 is itself integral, at its lower part, with a connector 108.
  • the two connectors 106 and 108 make it possible to connect the rigid part of the rod, at the level of the tubular parts 83 and 85, to flexible conduits 109 and 110, respectively.
  • the coaxial conduits 109 and 110 constitute a flexible conduit similar to the conduit 72 shown in FIG. 4 and are connected at their end opposite to the connectors 106 and 108, to the distribution block of the nickel-plating rod, not shown.
  • a flexible conduit 103 for supplying compressed air for unlocking the sealing devices of the positive security rod is fixed, by means of fingers 111, to the connector 106.
  • the electrolyte liquid is introduced into the rigid part of the rod, through the annular conduit 89 formed between the flexible conduits 109 and 110.
  • the electrolyte is collected at the central part of the tube 83, then in the interior space 105 of the conduit 109 .
  • the treatment rod according to the invention has the advantage of comprising a simple sealing device and extremely reliable operation.
  • This sealing device can be very easily controlled remotely and does not require significant modifications to the structure of the rod.
  • the treatment rod can be controlled remotely and does not require direct intervention in the vicinity of the tube to be treated.
  • the structure of the rod can be different and include rigid parts and successive flexible parts having lengths adapted to the shape and dimensions of the tubes to be treated.
  • the treatment rod according to the invention can be used not only for nickel plating or for other metallic coatings of the inner surface of a tube but also for treatments different from a coating such as pickling or electrolytic or chemical machining or other surface treatments requiring the interior surface of the tube to come into contact with a reactive liquid.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electroplating Methods And Accessories (AREA)
EP88400998A 1987-05-14 1988-04-22 Rohrförmiger Stab für die Behandlung der Innenfläche eines Rohres Expired - Lifetime EP0291373B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8706792 1987-05-14
FR8706792A FR2615207B1 (fr) 1987-05-14 1987-05-14 Canne tubulaire pour le traitement de la surface interieure d'un tube

Publications (2)

Publication Number Publication Date
EP0291373A1 true EP0291373A1 (de) 1988-11-17
EP0291373B1 EP0291373B1 (de) 1990-12-05

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ID=9351102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400998A Expired - Lifetime EP0291373B1 (de) 1987-05-14 1988-04-22 Rohrförmiger Stab für die Behandlung der Innenfläche eines Rohres

Country Status (6)

Country Link
US (1) US4849084A (de)
EP (1) EP0291373B1 (de)
DE (1) DE3861205D1 (de)
ES (1) ES2019462B3 (de)
FR (1) FR2615207B1 (de)
ZA (1) ZA883106B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0622810A1 (de) * 1993-04-29 1994-11-02 Framatome Verfahren und Einrichtung zur Wiederherstellung und zum Rissebildungsschutz der Innenwand eines Durchführungsrohrs im Druckgefässboden eines Druckwasserkernreaktors
CN104762651A (zh) * 2015-03-03 2015-07-08 吉林安德电化科技有限公司 结晶器的内表面电镀生产线及其电镀方法
WO2015114243A1 (fr) * 2014-01-28 2015-08-06 Gdf Suez Outil pour intervention sur la paroi d'une canalisation - méthode associée
WO2017084837A1 (de) * 2015-11-19 2017-05-26 Mahle International Gmbh Verfahren zum beschichten wenigstens einer an einem kolben vorgesehenen kolbennut mit einer schutzbeschichtung und beschichtungseinrichtung, insbesondere zur durchführung des verfahrens

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FR2652191B1 (fr) * 1989-09-15 1991-12-13 Framatome Sa Dispositif de mise en contact d'un liquide de traitement avec une zone de la surface interieure d'un tube et procede de mise en place de ce dispositif dans le tube.
EP0597428B1 (de) * 1992-11-09 1997-07-30 Canon Kabushiki Kaisha Anodisierungsapparat mit einer Trägervorrichtung für das zu behandelnde Substrat
FR2707303B1 (fr) * 1993-07-08 1995-09-22 Framatome Sa Procédé et dispositif d'usinage électrochimique de matériaux métalliques et notamment de la surface interne de traversées de fond de cuve d'un réacteur nucléaire.
US5507923A (en) * 1993-11-09 1996-04-16 Stouse; Henry J. Method and apparatus for electrolytic polishing of tubular products
US5516415A (en) * 1993-11-16 1996-05-14 Ontario Hydro Process and apparatus for in situ electroforming a structural layer of metal bonded to an internal wall of a metal tube
US5695621A (en) * 1996-07-31 1997-12-09 Framatome Technologies, Inc. Resonating electroplating anode and process
US6200439B1 (en) * 1998-11-05 2001-03-13 General Electric Company Tool for electrochemical machining
US6547950B1 (en) * 2000-02-02 2003-04-15 Therma Corporation, Inc. Cathode rinsing station and method
US6523615B2 (en) 2000-03-31 2003-02-25 John Gandy Corporation Electropolishing method for oil field tubular goods and drill pipe
US20060163075A1 (en) * 2002-06-21 2006-07-27 Wenlin Zhang Method and apparatus for downhole pipe or casing repair
US8101050B2 (en) * 2006-06-20 2012-01-24 Vetco Gray Inc. System, method, and apparatus for continuous electroplating of elongated workpieces
GB2476405B (en) * 2006-06-20 2012-01-11 Vetco Gray Inc Apparatus for continuous electroplating of elongated workpieces
DE102011100100A1 (de) * 2011-04-29 2012-10-31 Air Liquide Deutschland Gmbh Verfahren zum Behandeln einer Leitungskomponente
RU2704778C1 (ru) * 2016-03-03 2019-10-30 Ниппон Стил Корпорейшн Устройство электроосаждения
KR102032296B1 (ko) * 2017-11-01 2019-10-15 두산중공업 주식회사 가확관부 및 밀봉용접부 전기도금 정비장치, 이를 포함하는 정비시스템, 및 이를 운용하는 방법

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US2970950A (en) * 1958-01-22 1961-02-07 Benteler Corp Method and apparatus for the continuous galvanization of the inner surface of tubes
EP0167513A1 (de) * 1984-05-11 1986-01-08 N.V. Verenigde Energiebedrijven Van Het Scheldeland (Ebes) Verfahren zum Reparieren der Rohre eines Dampferzeugers

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FR2565323B1 (fr) * 1984-05-30 1986-10-17 Framatome Sa Procede de protection contre la corrosion d'un tube de generateur de vapeur et dispositif pour la mise en oeuvre de ce procede

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US2970950A (en) * 1958-01-22 1961-02-07 Benteler Corp Method and apparatus for the continuous galvanization of the inner surface of tubes
EP0167513A1 (de) * 1984-05-11 1986-01-08 N.V. Verenigde Energiebedrijven Van Het Scheldeland (Ebes) Verfahren zum Reparieren der Rohre eines Dampferzeugers

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704678A1 (fr) * 1993-04-29 1994-11-04 Framatome Sa Procédé et dispositif de réparation et de protection contre la fissuration de la paroi interne d'un tube de traversée du fond de la cuve d'un réacteur nucléaire à eau sous pression.
US5544209A (en) * 1993-04-29 1996-08-06 Framatome Process for repairing and protecting from cracking the inner wall of a tube for penetrating the bottom head of a pressurized-water nuclear reactor vessel
EP0622810A1 (de) * 1993-04-29 1994-11-02 Framatome Verfahren und Einrichtung zur Wiederherstellung und zum Rissebildungsschutz der Innenwand eines Durchführungsrohrs im Druckgefässboden eines Druckwasserkernreaktors
US10605397B2 (en) 2014-01-28 2020-03-31 Engie Tool for working on the wall of a pipe and related method
WO2015114243A1 (fr) * 2014-01-28 2015-08-06 Gdf Suez Outil pour intervention sur la paroi d'une canalisation - méthode associée
CN106164558A (zh) * 2014-01-28 2016-11-23 能源集团 用于在管壁上作业的工具以及相关方法
US10605396B2 (en) 2014-01-28 2020-03-31 Engie Tool for working on the wall of a pipe and related method
US10215323B2 (en) 2014-01-28 2019-02-26 Engie Tool for working on the wall of a pipe and related method
EP3099967B1 (de) 2014-01-28 2020-01-08 Grtgaz Werkzeug zur bearbeitung der wand eines rohres und entsprechendes verfahren
CN106164558B (zh) * 2014-01-28 2020-03-03 能源集团 用于在管壁上作业的工具以及相关方法
RU2717177C2 (ru) * 2014-01-28 2020-03-18 Анжи Инструмент для работы на стенке трубопровода и соответствующий способ
CN104762651A (zh) * 2015-03-03 2015-07-08 吉林安德电化科技有限公司 结晶器的内表面电镀生产线及其电镀方法
WO2017084837A1 (de) * 2015-11-19 2017-05-26 Mahle International Gmbh Verfahren zum beschichten wenigstens einer an einem kolben vorgesehenen kolbennut mit einer schutzbeschichtung und beschichtungseinrichtung, insbesondere zur durchführung des verfahrens

Also Published As

Publication number Publication date
DE3861205D1 (de) 1991-01-17
EP0291373B1 (de) 1990-12-05
FR2615207B1 (fr) 1991-11-22
FR2615207A1 (fr) 1988-11-18
US4849084A (en) 1989-07-18
ZA883106B (en) 1989-01-25
ES2019462B3 (es) 1991-06-16

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