DE3730766C2 - Process for the continuous production of a superconductor in a reelable design - Google Patents
Process for the continuous production of a superconductor in a reelable designInfo
- Publication number
- DE3730766C2 DE3730766C2 DE3730766A DE3730766A DE3730766C2 DE 3730766 C2 DE3730766 C2 DE 3730766C2 DE 3730766 A DE3730766 A DE 3730766A DE 3730766 A DE3730766 A DE 3730766A DE 3730766 C2 DE3730766 C2 DE 3730766C2
- Authority
- DE
- Germany
- Prior art keywords
- strand
- superconductor
- mixed oxide
- particles
- silver
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 9
- 239000002887 superconductor Substances 0.000 title claims description 9
- 238000010924 continuous production Methods 0.000 title claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- H10N60/20—Permanent superconducting devices
- H10N60/203—Permanent superconducting devices comprising high-Tc ceramic materials
-
- 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
- H10N60/0268—Manufacture or treatment of devices comprising copper oxide
-
- 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
- H10N60/0268—Manufacture or treatment of devices comprising copper oxide
- H10N60/0801—Manufacture or treatment of filaments or composite wires
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
Gegenstand des Hauptpatentes ist ein Verfahren zur kontinuierlichen Herstellung eines Supraleiters in trommelbarer Ausführung für elektrische Kabel und Leitungen aus einer inneren supraleitfähigen Seele und einer äußeren Hülle aus einem längsnahtgeschweißten Metallband. Das längseinlaufende Metallband wird zu einer rohrförmigen Hülle geformt und auf die Bandinnenfläche werden die Teilchen eines Mischoxids aufgebracht und anschließend die Bandkanten dicht verschlossen sowie das so gebildete Rohr im Querschnitt reduziert. Mit der Querschnittsreduzierung erfolgt eine mechanische Verdichtung der pulver- bis granulatförmigen Teilchen des Mischoxids.The main patent is a procedure for continuous production of a superconductor in reelable version for electrical cables and Lines from an inner superconducting soul and an outer shell made of a longitudinally welded Metal strap. The longitudinally running metal band becomes one tubular shell shaped and onto the inner surface of the band the particles of a mixed oxide are applied and then tightly closed the band edges and that tube thus formed is reduced in cross section. With the The cross-section is reduced mechanically Compression of the powdery to granular particles of Mixed oxide.
Eine vorteilhafte Variante hierzu besteht darin, daß die Teilchen des Mischoxids zunächst durch Pressen oder Extrusion unter Zuhilfenahme eines Bindemittels fortlaufend zu einem Strang verdichtet werden, daß dieser Strang anschließend von einem längseinlaufend zum Rohr geformten Metallband umschlossen wird, dessen Kanten miteinander verschweißt werden, und daß schließlich die nunmehr dichte Hülle auf den Strang heruntergezogen wird, wobei vor, während oder nach der Umhüllung eine Temperaturbehandlung des verdichteten Stranges erfolgt. Die Temperaturbehandlung wird in beiden Fällen vorteilhaft in Bereichen zwischen 850 Grad C und 1650 Grad C, vorzugsweise zwischen 1000 Grad C und 1500 Grad C vorgenommen. An advantageous variant of this is that the Particles of the mixed oxide first by pressing or Extrusion using a binder be continuously compressed into a strand that this Then run from one end to the pipe shaped metal band is wrapped, the edges of which are welded together, and that finally the now tight cover is pulled down on the strand, being before, during or after the wrapping Heat treatment of the compacted strand takes place. The heat treatment is used in both cases advantageous in areas between 850 degrees C and 1650 Degree C, preferably between 1000 degrees C and 1500 degrees C. performed.
Die vorliegende Erfindung sieht eine Verbesserung des Gegenstandes nach dem Hauptpatent vor. Sie besteht darin, daß das Metallband aus Silber oder einer Silberlegierung besteht. Diese Maßnahme ist von besonderer Bedeutung dann, wenn die Mischoxide zur Erzielung der Supraleitfähigkeit einem Temperaturbehandlungsprozeß in Gegenwart von Sauerstoff unterworfen werden müssen und sie aus fertigungstechnischen Gründen nach außen bereits vorher durch eine metallische Hülle abzukapseln sind.The present invention provides an improvement in Subject after the main patent. It is that the metal band made of silver or a silver alloy consists. This measure is of particular importance then when the mixed oxides to achieve the Superconductivity in a temperature treatment process Must be subjected to the presence of oxygen and they already exist externally for manufacturing reasons must be encapsulated beforehand by a metallic shell.
Bereits in der Veröffentlichung von S. Jih et al "High Tc Superconductors - composite vire fabrication" in App Phys. Letter 51 (3) vom 20. Juli 1987 (S. 203, 204) ist die Verwendung von Silber als Hüllmaterial für supraleitende Drähte diskutiert.In the publication by S. Jih et al "High T c Superconductors - composite vire fabrication" in App Phys. Letter 51 (3) dated July 20, 1987 (pp. 203, 204) discusses the use of silver as a sheathing material for superconducting wires.
Die Erfindung sei an Hand der in den Fig. 1 und 2 dargestellten Ausführungsbeispiele näher erläutert.The invention will be explained in more detail using the exemplary embodiments shown in FIGS. 1 and 2.
Die dargestellte Ausführungsform der Erfindung zeigt in der Fig. 1 eine Anlage zur Herstellung eines Supraleiters, in der Fig. 2 den Supraleiter selbst.The illustrated embodiment of the invention shows in FIG. 1 a system for producing a superconductor, in FIG. 2 the superconductor itself.
Von dem auf dem Wickelbock 1 gelagerten Bandvorrat 2 wird z. B. ein Silberband 3 über eine Umlenkvorrichtung 4, ggf. auch in Form einer Bandreinigung, der Maschinenanlage 5 zugeführt. Im Bereich dieser Anlage wird das Silberband 3 mittels nicht dargestellter und an sich bekannter Formwerkzeuge, wie versetzt angeordnete Rollen oder Walzen, in die Rohrform 6 gebracht. In das nach oben noch offene Rohr 6 wird mittels der Fördereinrichtung 7 das pulverförmige Mischoxid 8 eingebracht. Dieses Pulver wurde z. B. dadurch hergestellt, daß ein aus einem Mischoxid auf Basis La - Sr - Cu - O, Ba - Pb - Bi - O, Ba - La - Cu - O, Y - Ba - Cu - O oder dergl. gepreßter und wärmebehandelter Strang erneut in die Pulverform überführt wurde. Im weiteren Durchlauf durch die Maschinenanlage 5 werden mittels der Schweißvorrichtung 9 die Bandkanten des Rohres 6 dicht verschweißt und das Rohr 6 beim Durchlaufen durch das Kalibrierwerkzeug 10 zunächst im Querschnitt reduziert. In einer oder mehreren Stufen kann dann das mit dem Mischoxid 8 gefüllte bzw. das Mischoxid enthaltende Rohr 6 mit Hilfe weiterer Kalibriervorrichtungen 11 im Querschnitt soweit reduziert werden, bis die Teilchen des im Rohr 6 befindlichen Mischoxids 8 ausreichend verdichtet sind. Ggf. kann sich hieran noch einmal eine Warmbehandlung, etwa in Form eines Glühprozesses und zweckmäßig unter Sauerstoffeinwirkung, anschließen.From the stored on the winding frame 1 tape supply 2 z. B. a silver band 3 via a deflection device 4 , optionally also in the form of a band cleaning, the machine system 5 . In the area of this system, the silver band 3 is brought into the tube shape 6 by means of shaping tools, not shown, which are known per se, such as staggered rolls or rollers. The pulverulent mixed oxide 8 is introduced into the tube 6 , which is still open at the top, by means of the conveying device 7 . This powder was e.g. B. manufactured in that a from a mixed oxide based on La - Sr - Cu - O, Ba - Pb - Bi - O, Ba - La - Cu - O, Y - Ba - Cu - O or the like. Extruded and heat-treated strand was again converted into the powder form. In the further passage through the machine system 5 , the strip edges of the tube 6 are tightly welded by means of the welding device 9 and the tube 6 is initially reduced in cross section when it passes through the calibration tool 10 . In one or more stages, the tube 6 filled with the mixed oxide 8 or containing the mixed oxide can be reduced in cross-section with the aid of further calibration devices 11 until the particles of the mixed oxide 8 in the tube 6 are sufficiently compressed. Possibly. This can be followed by a heat treatment, for example in the form of an annealing process and expediently under the influence of oxygen.
Als Ergebnis dieses Verfahrens zeigt die Fig. 2 in gegenüber der Fig. 1 vergrößertem Maßstab einen Querschnitt durch einen erfindungsgemäßen Supraleiter, bei dem die aus dem Mischoxid 8 bestehende Seele von dem metallischen Rohr 6 aus Silber bzw. einer entsprechenden Ag-Legierung dicht umschlossen ist.As a result of this method, FIG. 2 shows, on an enlarged scale compared to FIG. 1, a cross section through a superconductor according to the invention, in which the core consisting of the mixed oxide 8 is tightly enclosed by the metallic tube 6 made of silver or a corresponding Ag alloy .
Claims (4)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3716815A DE3716815C2 (en) | 1987-05-20 | 1987-05-20 | Process for the continuous production of a superconductor |
DE3730766A DE3730766C2 (en) | 1987-05-20 | 1987-09-12 | Process for the continuous production of a superconductor in a reelable design |
FR888806643A FR2615651B1 (en) | 1987-05-20 | 1988-05-18 | SUPERCONDUCTOR THAT CAN BE WOUND AROUND A DRUM AND MANUFACTURING METHOD |
JP63122177A JPS63308810A (en) | 1987-05-20 | 1988-05-20 | Superconductor which can be taken up by winding and manufacture of the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3716815A DE3716815C2 (en) | 1987-05-20 | 1987-05-20 | Process for the continuous production of a superconductor |
DE3730766A DE3730766C2 (en) | 1987-05-20 | 1987-09-12 | Process for the continuous production of a superconductor in a reelable design |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3730766A1 DE3730766A1 (en) | 1989-03-23 |
DE3730766C2 true DE3730766C2 (en) | 1998-05-20 |
Family
ID=25855771
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3716815A Expired - Fee Related DE3716815C2 (en) | 1987-05-20 | 1987-05-20 | Process for the continuous production of a superconductor |
DE3730766A Expired - Fee Related DE3730766C2 (en) | 1987-05-20 | 1987-09-12 | Process for the continuous production of a superconductor in a reelable design |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3716815A Expired - Fee Related DE3716815C2 (en) | 1987-05-20 | 1987-05-20 | Process for the continuous production of a superconductor |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS63308810A (en) |
DE (2) | DE3716815C2 (en) |
FR (1) | FR2615651B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0285108B1 (en) * | 1987-03-31 | 1993-09-15 | Sumitomo Electric Industries Limited | Method of producing superconducting wire |
JP2592842B2 (en) * | 1987-07-03 | 1997-03-19 | 株式会社東芝 | Method for manufacturing compound superconducting wire |
DE3731266A1 (en) * | 1987-09-17 | 1989-04-06 | Kernforschungsz Karlsruhe | COVER MATERIAL FOR SUPRAL-CONDUCTING WIRE |
JP2775946B2 (en) * | 1989-12-28 | 1998-07-16 | 住友電気工業株式会社 | Manufacturing method of oxide superconducting wire |
EP0704862B1 (en) * | 1994-09-30 | 2003-01-22 | Canon Kabushiki Kaisha | Method of manufacturing a superconducting wire |
DE19727343A1 (en) * | 1996-07-11 | 1998-01-15 | Alsthom Cge Alcatel | High current carrying capacity superconductive layer production |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2108635A1 (en) * | 1971-02-24 | 1972-08-31 | Kabel Metallwerke Ghh | Process for the continuous production of an elongated superconductor |
DE3019980C2 (en) * | 1980-05-24 | 1983-03-24 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Process for the production of superconducting wires from multifilaments containing niobium and aluminum, surrounded by copper or copper alloy |
US4629515A (en) * | 1981-04-30 | 1986-12-16 | Mitsubishi Denki Kabushiki Kaisha | Superconductive materials and process for the production thereof |
CA1338396C (en) * | 1987-02-05 | 1996-06-18 | Kazuo Sawada | Process for manufacturing a superconducting wire of compound oxide-type ceramics |
DE3851070T3 (en) * | 1987-02-28 | 2006-12-28 | Sumitomo Electric Industries, Ltd. | Process for producing an oxide compound superconductor thread. |
EP0503746B1 (en) * | 1987-03-13 | 1997-05-14 | Kabushiki Kaisha Toshiba | Superconducting wire and method of manufacturing the same |
EP0283312A3 (en) * | 1987-03-20 | 1990-09-26 | Fujikura Ltd. | Method of producing a superconducting wire and a superconducting wire produced according to the same |
EP0285108B1 (en) * | 1987-03-31 | 1993-09-15 | Sumitomo Electric Industries Limited | Method of producing superconducting wire |
US4952554A (en) * | 1987-04-01 | 1990-08-28 | At&T Bell Laboratories | Apparatus and systems comprising a clad superconductive oxide body, and method for producing such body |
JP2583499B2 (en) * | 1987-04-09 | 1997-02-19 | 株式会社フジクラ | Superconducting wire manufacturing method |
JP2558686B2 (en) * | 1987-04-09 | 1996-11-27 | 株式会社フジクラ | Superconducting wire manufacturing method |
JPS63264820A (en) * | 1987-04-22 | 1988-11-01 | Nippon Steel Corp | Continuous manufacture of superconductive wire |
JP2592838B2 (en) * | 1987-05-08 | 1997-03-19 | 株式会社東芝 | Method for manufacturing compound superconducting wire |
JPS63292523A (en) * | 1987-05-26 | 1988-11-29 | Hitachi Cable Ltd | Manufacture of superconductor cable |
-
1987
- 1987-05-20 DE DE3716815A patent/DE3716815C2/en not_active Expired - Fee Related
- 1987-09-12 DE DE3730766A patent/DE3730766C2/en not_active Expired - Fee Related
-
1988
- 1988-05-18 FR FR888806643A patent/FR2615651B1/en not_active Expired - Fee Related
- 1988-05-20 JP JP63122177A patent/JPS63308810A/en active Pending
Non-Patent Citations (1)
Title |
---|
JIN, S. et al.: "High T¶c¶ superconductors - com- posite wire fabrication" in: Appl.Phys.Lett., 51 (3), 20. Juli 87, S. 203 * |
Also Published As
Publication number | Publication date |
---|---|
DE3730766A1 (en) | 1989-03-23 |
FR2615651B1 (en) | 1994-03-04 |
JPS63308810A (en) | 1988-12-16 |
DE3716815C2 (en) | 1997-07-31 |
DE3716815A1 (en) | 1988-12-08 |
FR2615651A1 (en) | 1988-11-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE68905980T2 (en) | HIGH-STRENGTH SUPER-CONDUCTIVE WIRES AND CABLES WITH HIGH CURRENT DENSITY AND METHOD FOR THE PRODUCTION THEREOF. | |
DE2515342C3 (en) | Welding wire and process for its manufacture | |
EP0503525B1 (en) | Method for producing superconducting wires | |
DE2104600C3 (en) | Electrical conductor for superconducting windings or switching sections, and method for producing such a conductor | |
DE3730766C2 (en) | Process for the continuous production of a superconductor in a reelable design | |
DE4228067A1 (en) | METHOD FOR PRODUCING A SUPERCONDUCTING WIRE | |
DE3401808A1 (en) | METHOD FOR PRODUCING AL-STABILIZED SUPRAL LADDERS | |
DE69217681T2 (en) | Superconducting wire with superconducting oxide material | |
DE69013818T2 (en) | Process for the production of a contact wire covered with conductive copper made of steel. | |
DE4006094A1 (en) | HIGH TEMPERATURE SUPER LADDER MADE OF A CORRUGATED METAL TUBE | |
DE1239380B (en) | Method for manufacturing a high-frequency submarine cable | |
DE69110328T2 (en) | Thallium oxide superconductor and process for its production. | |
EP0715772B1 (en) | Process for drawing wire-like superconductors | |
DE2052462B2 (en) | Process for the continuous production of copper-clad aluminum wires | |
DE2626384B2 (en) | Ribbon-shaped superconductor | |
CH620543A5 (en) | ||
DE19828954C2 (en) | Process for producing a band-shaped multicore superconductor with high-T¶c¶ superconductor material and device for carrying out the process | |
DE19620825C1 (en) | High temperature superconductive composite conductor production | |
DE19752863C1 (en) | Method of manufacturing high temp. (high-Tc) superconducting compound wires | |
DE4104421A1 (en) | Superconducting composite with improved mechanical properties | |
DE3034427A1 (en) | METHOD FOR PRODUCING MINERALLY INSULATED ELECTRIC CABLES | |
DE3042588C2 (en) | Process for the production of a powder wire | |
DE2829517C2 (en) | Filled welding wire and process for its manufacture | |
DE1945641B2 (en) | Method of manufacturing a large unit length superconductor | |
DE2054392A1 (en) | Process for the manufacture of a stabilized superconductor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AF | Is addition to no. |
Ref country code: DE Ref document number: 3716815 Format of ref document f/p: P |
|
8110 | Request for examination paragraph 44 | ||
8176 | Proceedings suspended because of application no: |
Ref document number: 3716815 Country of ref document: DE Format of ref document f/p: P |
|
8178 | Suspension cancelled | ||
AF | Is addition to no. |
Ref country code: DE Ref document number: 3716815 Format of ref document f/p: P |
|
AF | Is addition to no. |
Ref country code: DE Ref document number: 3716815 Format of ref document f/p: P |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8340 | Patent of addition ceased/non-payment of fee of main patent |