Title:
SUPERCONDUCTING OXIDE WIRE AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2008/015847
Kind Code:
A1
Abstract:
A process for producing a superconducting oxide wire which has even performances throughout
so that a wire of an intended length can be taken out thereof. The process for superconducting
oxide wire production comprises: a drawing step in which a wire formed by sheathing
a precursor powder for a (Bi,Pb)-2223 superconductor with a metallic sheathing
material is drawn; a first rolling step in which the wire which has undergone the
drawing step is rolled; a first heat treatment step in which the wire which has
undergone the first rolling step is heat-treated; a second rolling step in which
after the first heat treatment step, the wire is rolled; and a second heat treatment
step in which after the second rolling step, the wire is heat-treated. The process
further includes, between the first rolling step and the second heat treatment
step, a step in which any sheath-deficient part in the outer surface of the sheathing
material is filled with a material comprising silver as the main component.
Inventors:
KOBAYASHI SHIN-ICHI (JP)
Application Number:
PCT/JP2007/062072
Publication Date:
February 07, 2008
Filing Date:
June 15, 2007
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
KOBAYASHI SHIN-ICHI (JP)
KOBAYASHI SHIN-ICHI (JP)
International Classes:
H01B13/00; C01G1/00; C01G29/00; H01B12/10; H01F6/06
Foreign References:
| JPS646311A | 1989-01-10 | |||
| JPH01251514A | 1989-10-06 |
Attorney, Agent or Firm:
NAKANO, Minoru et al. (1-3 Shimaya 1-chome, Konohana-ku, Osaka-sh, Osaka 24, JP)
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