ES345336A1 - Method of joining two tubular elements formed of non-weldable metals and joint obtained - Google Patents

Method of joining two tubular elements formed of non-weldable metals and joint obtained

Info

Publication number
ES345336A1
ES345336A1 ES345336A ES345336A ES345336A1 ES 345336 A1 ES345336 A1 ES 345336A1 ES 345336 A ES345336 A ES 345336A ES 345336 A ES345336 A ES 345336A ES 345336 A1 ES345336 A1 ES 345336A1
Authority
ES
Spain
Prior art keywords
tube
brazing
alloy
expanded
joining
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.)
Expired
Application number
ES345336A
Other languages
Spanish (es)
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of ES345336A1 publication Critical patent/ES345336A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/007—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints specially adapted for joining pipes of dissimilar materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/002—Soldering by means of induction heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/08—Soldered joints
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C13/00—Pressure vessels; Containment vessels; Containment in general
    • G21C13/02—Details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Arc Welding In General (AREA)

Abstract

A method of joining the ends of tubes 1, 2 of non-weldable metals comprises assembling the ends with an interposed strip of a brazing alloy (not shown), expanding the end of the inner tube 1 within that of the outer tube 2 and heating the tube-ends to the welding temperature of the brazing alloy. In the example, the inner tube 1 is of zirconium alloy and the outer of stainless-steel. Annular grooves 6, a screw thread or longitudinal grooves may be machined in a conical surface on the inner or outer tube before the tubes are assembled with a force-fit. The tube-ends are then surrounded by a collar 10 and the inner end expanded by an expander 7 (right-hand side of Fig. 1). A brazing wire (9), Fig. 2 (not shown), is placed in a recess 8 before or after force fitting or after tubeexpansion. Before heating the assembly in an induction furnace to melt the brazing alloy and relieve the stress in the expanded tube, a solid or annular core (12, Fig. 2), e.g. of stainlesssteel, is inserted in the assembly to bear against the expanded zone of the inner tube during heating. The brazing metal may be a silver alloy containing 5% aluminium, which melts at 880 C.
ES345336A 1966-10-14 1967-09-22 Method of joining two tubular elements formed of non-weldable metals and joint obtained Expired ES345336A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR80091A FR1525045A (en) 1966-10-14 1966-10-14 Method of joining two tubular elements made of non-weldable materials and the resulting junction

Publications (1)

Publication Number Publication Date
ES345336A1 true ES345336A1 (en) 1969-01-01

Family

ID=8619180

Family Applications (1)

Application Number Title Priority Date Filing Date
ES345336A Expired ES345336A1 (en) 1966-10-14 1967-09-22 Method of joining two tubular elements formed of non-weldable metals and joint obtained

Country Status (6)

Country Link
BE (1) BE703153A (en)
CH (1) CH479835A (en)
ES (1) ES345336A1 (en)
FR (1) FR1525045A (en)
GB (1) GB1137310A (en)
LU (1) LU54602A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2429640A1 (en) * 1978-06-29 1980-01-25 Cebal Cold pressure welding of two concentric metal tubes - esp. welding an aluminium outlet valve cup in the neck of an aluminium aerosol can
US4530527A (en) * 1981-09-21 1985-07-23 Boart International Limited Connection of drill tubes
FR2528336B1 (en) * 1982-06-15 1986-03-07 Allinquant J G METHOD FOR ASSEMBLING CONCENTRIC TUBULAR PARTS, PARTICULARLY APPLICABLE TO ASSEMBLING SHOCK ABSORBER TUBES WITH THEIR FIXING FITTINGS AND TUBULAR PARTS THUS ASSEMBLED
US6604763B1 (en) 1998-12-07 2003-08-12 Shell Oil Company Expandable connector
CA2306656C (en) * 1999-04-26 2006-06-06 Shell Internationale Research Maatschappij B.V. Expandable connector for borehole tubes
FR2979886B1 (en) * 2011-09-09 2014-05-09 Faurecia Interieur Ind DASHBOARD TRAIN COMPRISING AT LEAST TWO STRINGS FIXED TO ONE OTHER BY WELDING
ES2823164T3 (en) * 2016-07-01 2021-05-06 Sandvik Intellectual Property Bimetallic tube and manufacturing process of a bimetallic tube
CN112475754A (en) * 2020-10-30 2021-03-12 哈尔滨哈飞航空工业有限责任公司 Accurate inner mold positioning device for large-size cylindrical thin-walled part

Also Published As

Publication number Publication date
LU54602A1 (en) 1967-12-05
GB1137310A (en) 1968-12-18
BE703153A (en) 1968-01-15
FR1525045A (en) 1968-05-17
CH479835A (en) 1969-10-15

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