Flexible, high temperature superconductive cables

• US 5,143,897 A
• Filed: 02/12/1991
• Issued: 09/01/1992
• Est. Priority Date: 02/27/1990
• Status: Expired due to Fees

• Current Assignee: kabelmetal electro GmbH (Quattroduedue SpA)
• Original Assignee: kabelmetal electro GmbH (Quattroduedue SpA)
• Inventors: Ziemek, Gerhard B., Mitrochin, Valerij A., Svalov, Grigorij, Peshkov, Izyaslav G., Sytnikov, Victor E.
• Primary Examiner(s): Gorski, Joseph M.
• Application Number:
  US07/653,894
• Time in Patent Office: 567 Days
• Field of Search: 29/599, 505/1, 505/917, 505/921, 505/928, 505/929, 505/930, 228/147, 228/151, 228/155, 228/173.5, 228/173.4
• US Class Current: 505/431
• CPC Class Codes: H10N 60/0801 Manufacture or treatment of filaments or composite wires
• CPC Class Codes: H10N 60/203 comprising high-Tc ceramic materials
• CPC Class Codes: Y10T 29/49014 Superconductor

Abstract

Method of manufacturing a flexible, high temperature superconductive cable by longitudinally imbedding a ceramic oxide material in a band source material, and then compressing same to form an elongated flat band, which in turn is deformed into a hollow tubular member whose longitudinal edges are welded before such member is corrugated. Further, there is disclosed a flexible, high temperature superconductive cable including a corrugated metallic wall having imbedded therein at least one superconductor of ceramic oxide material extending continuously therethrough.

Claims

1. A method of manufacturing a flexible, high temperature superconductive cable, comprising the steps of:

longitudinally imbedding a ceramic oxide material having high temperature, superconductive characteristics in a band source member of metallic material thereby encasing longitudinal surfaces of said ceramic oxide material in said metallic material;

compressing by a rolling process said band source member and said encased ceramic oxide material into an elongated flat band with the length of said encased ceramic oxide material being extended to the length of said elongated flat band and forming a high temperature superconductor therethrough;

deforming by longitudinal drawing and shaping said elongated flat band into a hollow tubular member;

welding longitudinal adjacent edges of said hollow tubular member; and

corrugating said welded, hollow tubular member.

2. Method in accordance with claim 1 wherein said imbedding step includes inserting said ceramic oxide material into a longitudinal central aperture in said band source member.

3. Method in accordance with claim 1, wherein said imbedding step includes inserting said ceramic oxide material into a plurality of parallel bores in said band source member.

4. Method in accordance with claim 1, wherein said imbedding step includes inserting said ceramic oxide material into a plurality of longitudinal extending grooves;

said band source material compromising a base member of metallic material that includes said plurality of longitudinally extending grooves, and a plate of metallic material that covers said plurality of grooves and is fixedly attached to said base member.

5. Method in accordance with claim 1, wherein said imbedding step includes inserting said ceramic oxide material into spaces between a pair of metallic strips and a plurality of thin metallic wires;

said band source member comprising a base member of metallic material, said plurality of thin metallic wires positioned in longitudinal alignment on one surface of said base member, said pair of metallic strips positioned on opposite sides of said plurality of thin metallic wires, and a metallic plate positioned upon said plurality of thin metallic wires to enclose said ceramic oxide material.

6. Method in accordance with claim 1 wherein said imbedding step includes inserting said ceramic oxide material into central apertures of a plurality of metallic tubes;

said band source member comprising said plurality of metallic tubes aligned with each other in a metallic casing.