Finished conductor arrangement for an NB3SN superconductor wire and method for producing a subelement for an NB3SN superconductor wire

US11515462B2 · kind B2 · utility

Assignee

• BRUKER EAS GMBH · DE

Inventors

• Matheus Wanior · Gelnhausen, DE
• Vital Abaecherli · Niederrodenbach, DE
• Carl BUEHLER · Langenselbold, DE
• Bernd Sailer · Alzenau, DE
• Klaus Schlenga · Linkenheim-Hochstetten, DE
• Manfred Thoener · Lanzingen, DE
• Michael Field · Jersey City, US

Key dates

• Filing date: Oct 4, 2021
• Grant date: Nov 29, 2022
• Expiry date: Oct 4, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N60/0184
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

For producing an Nb3Sn superconductor wire, restack rod process (RRP) subelements (1a; 60a) are grouped to form a bundle having an approximately circular cross section and are arranged together with filling elements (18a-18c) in an internally and externally round outer tube (19; 52). To the inside the filling elements form a serrated profile (25) for abutment against the hexagonal subelements, and to the outside they form a round profile (24) for direct or indirect abutment in the outer tube. In fabricating the RRP subelements, and before a reshaping with a reduction in cross section, an externally hexagonal and internally round casing structure (9) is provided, into which the remaining parts of the subelements are inserted, in particular, an annular arrangement of hexagonal Nb-containing rod elements (4), which are surrounded externally by an outer matrix (7, 61) and internally by an inner matrix (3).