Process for producing a strip-shaped, multi-core superconductor with high-Tc superconducting material and superconductor produced by this process

US6471785B1 · kind B1 · utility

Assignee

• Vácuumschmelze GmbH · DE

Inventors

• Bernhard Fischer · Wien, AT
• Helmut Helldoerfer · Nuremberg, DE
• Stefan Kautz · Langensendelbach, DE
• Jens Mueller · Stuttgart, DE
• Bernhard Roas · Heidenheim, DE

Key dates

• Filing date: Aug 25, 2000
• Grant date: Oct 29, 2002
• Expiry date: Aug 25, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49014
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A process is disclosed for producing a strip-shaped superconductor with several conductor cores made of a high-Tc superconducting material and surrounded by a normal conducting material. A conductor blank (2a) produced from a fabricated conductor should be rolled flat at least once. For that purpose, the conductor blank is fed into the gap (7) between two rollers (8, 9) of which the rolling surfaces (8a, 9a) describe a concave, at least approximately elliptical contour at least in the rolling region (8a). The strip-shaped multi-core conductor produced in this way advantageously contains superconducting cores made of a bi-cuprate embedded in an Ag matrix.