METHOD OF PRODUCING TAPE-FORM OXIDE SUPERCONDUCTING WIRE, AND HEAT TREATMENT DEVICE

Title:

METHOD OF PRODUCING TAPE-FORM OXIDE SUPERCONDUCTING WIRE, AND HEAT TREATMENT DEVICE

Document Type and Number:

WIPO Patent Application WO/2012/105244

Kind Code:

A1

Abstract:

Provided is a heat treatment method which improves hydrogen fluoride gas exhaust efficiency and produces tape-form oxide superconducting wire having excellent superconductivity properties uniform in the length direction. In the method, a cylindrical rotation body (120) is arranged inside a cylindrical heat treatment space (111) of a furnace core tube (110) in a heat treatment device (100) so as to be capable of rotation relative to the furnace core axis (C). A film body of a superconductor precursor is formed on a tape-form wire (20), and the tape-form wire (20) is wound on a surface (121a) of the rotation body (120), said surface having multiple through-holes (124). A gas supply tube (130) supplies an atmospheric gas (6) from a position separated from and facing the film surface of the tape-form wire (20) wound around the rotation body (120). In the heat treatment space (111), partition plates (170) are arranged in the surplus space (111b) between the two ends of the rotation body (120) and the furnace core flanges (116, 118) of the furnace core tube (110), and the exhaust gas (6c), i.e., the gas after reaction with the film surface, cannot flow into the extra space (111b).

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Inventors:

KOIZUMI TSUTOMU

Application Number:

PCT/JP2012/000652

Publication Date:

August 09, 2012

Filing Date:

February 01, 2012

Export Citation:

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Assignee:

SWCC SHOWA CABLE SYSTEM CO LTD (JP)
INT SUPERCONDUCTIVITY TECH (JP)
KOIZUMI TSUTOMU

International Classes:

H01B13/00; C01G1/00; C01G3/00; H01B12/06

Foreign References:

JP2007188755A	2007-07-26
JP2009048817A	2009-03-05
JP2006269347A	2006-10-05
JP2003121076A	2003-04-23
JPH0380926U	1991-08-19
JPH02208209A	1990-08-17

Attorney, Agent or Firm:

WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)

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Claims:

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