GB1322799A - Method of joining superconductors - Google Patents

Method of joining superconductors

Info

Publication number
GB1322799A
GB1322799A GB3490270A GB3490270A GB1322799A GB 1322799 A GB1322799 A GB 1322799A GB 3490270 A GB3490270 A GB 3490270A GB 3490270 A GB3490270 A GB 3490270A GB 1322799 A GB1322799 A GB 1322799A
Authority
GB
United Kingdom
Prior art keywords
superconductors
joined
joint
superconductive
copper
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
GB3490270A
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt 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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Publication of GB1322799A publication Critical patent/GB1322799A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
    • 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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/68—Connections to or between superconductive connectors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N60/00—Superconducting devices
    • H10N60/01—Manufacture or treatment
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N60/00—Superconducting devices
    • H10N60/80—Constructional details

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

1322799 Welding by pressure and fusion THOMSON-BRANDT 17 July 1970 [18 July 1969] 34902/70 Heading B3R [Also in Division H2] In making a superconductive joint having superconductive properties superconductors are joined together by metallurgical bonding and the joint is treated by cold working and heating to regenerate its superconductive properties. Superconductors clad with copper are stripped of the copper at their ends and the ends are joined by an electron or laser beam in a butt or lap joint. The fused zone is cold rolled or hammered and heat treated, e.g. in the case of NbTi heated at 400‹ C. for 20 hours to restore the superconductivity of the joint. The bared ends may alternatively be joined by placing them alongside one another in a tube of the same superconductive material as that of the ends to be joined and the assembly is compressed to effect cold welding. In another alternative an element 7, Fig. 1, of the same superconductive material as the ends 1, 2 is friction welded between the bared ends 1, 2 of the superconductors. Superconductors 8, 9, Fig. 2a, clad in copper 10, 11 and insulation 12 either single or multifilament, have their end faces pressed together for cold welding.
GB3490270A 1969-07-18 1970-07-17 Method of joining superconductors Expired GB1322799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6924591A FR2054506B1 (en) 1969-07-18 1969-07-18

Publications (1)

Publication Number Publication Date
GB1322799A true GB1322799A (en) 1973-07-11

Family

ID=9037689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3490270A Expired GB1322799A (en) 1969-07-18 1970-07-17 Method of joining superconductors

Country Status (6)

Country Link
BE (1) BE752920A (en)
CH (1) CH528160A (en)
DE (1) DE2033615A1 (en)
FR (1) FR2054506B1 (en)
GB (1) GB1322799A (en)
NL (1) NL173114C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082164A (en) * 1990-08-01 1992-01-21 General Electric Company Method of forming superconducting joint between superconducting tapes
EP0471165A2 (en) * 1990-08-17 1992-02-19 Neuromag Oy Reliable superconducting link for superconducting thin film components and a method for fabricating the contacts
US5109593A (en) * 1990-08-01 1992-05-05 General Electric Company Method of melt forming a superconducting joint between superconducting tapes
US5134040A (en) * 1990-08-01 1992-07-28 General Electric Company Melt formed superconducting joint between superconducting tapes
AU653983B2 (en) * 1991-02-25 1994-10-20 Sumitomo Electric Industries, Ltd. Junction between wires employing oxide superconductors and joining method therefor
US5358929A (en) * 1992-02-20 1994-10-25 Sumitomo Electric Industries, Ltd. Method of joining superconducting wire using oxide high-temperature superconductor
CN112589250A (en) * 2020-12-09 2021-04-02 中国科学院电工研究所 Method for preparing niobium and niobium-titanium wire superconducting joint by electron beam welding

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490439A (en) * 1984-03-22 1984-12-25 Magnetic Corporation Of America Superconductor with improved persistence characteristics
CN114799463A (en) * 2022-06-29 2022-07-29 华中科技大学 Welding device for nano-ohm high-temperature superconducting joint

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA907758A (en) * 1972-08-15 Imperial Metal Industries (Kynoch) Limited Superconductors
US3011255A (en) * 1958-05-06 1961-12-05 Copperweld Steel Co Method for joining clad rods and wires or the like

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082164A (en) * 1990-08-01 1992-01-21 General Electric Company Method of forming superconducting joint between superconducting tapes
US5109593A (en) * 1990-08-01 1992-05-05 General Electric Company Method of melt forming a superconducting joint between superconducting tapes
US5134040A (en) * 1990-08-01 1992-07-28 General Electric Company Melt formed superconducting joint between superconducting tapes
EP0471165A2 (en) * 1990-08-17 1992-02-19 Neuromag Oy Reliable superconducting link for superconducting thin film components and a method for fabricating the contacts
EP0471165A3 (en) * 1990-08-17 1992-03-04 Neuromag Oy Reliable superconducting link for superconducting thin film components and a method for fabricating the contacts
AU653983B2 (en) * 1991-02-25 1994-10-20 Sumitomo Electric Industries, Ltd. Junction between wires employing oxide superconductors and joining method therefor
US5358929A (en) * 1992-02-20 1994-10-25 Sumitomo Electric Industries, Ltd. Method of joining superconducting wire using oxide high-temperature superconductor
CN112589250A (en) * 2020-12-09 2021-04-02 中国科学院电工研究所 Method for preparing niobium and niobium-titanium wire superconducting joint by electron beam welding

Also Published As

Publication number Publication date
NL7010669A (en) 1971-01-20
BE752920A (en) 1971-01-04
NL173114C (en) 1983-12-01
FR2054506A1 (en) 1971-04-23
CH528160A (en) 1972-09-15
NL173114B (en) 1983-07-01
DE2033615A1 (en) 1971-02-04
FR2054506B1 (en) 1975-08-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years