| 摘要 |
PURPOSE:To produce a compound conductive wire including a superconductor in one process by pressing successively a long plate material into U-shape, supplying powder of low material inside thereof, and after pressing an U-pipe into O-shape and sintering the powder, elongating the material. CONSTITUTION:A strip copper wire 11 is successively taken out from a reel 12 and bent into like a vessel via forming rollers 13 and 14. Powder of oxide system superconductive material 16 is supplied into a concave 17 from a feeder 15. Material 16 is wrapped by pressing it into O-shape via a forming roller 17', with leaving a gap 18 and sintered in a sintering furnace 19 with supplying oxygen therein. A covered copper wire 11' and a sintered body 16' inside thereof are elongated to a specified wire diameter via a roller 20 and rolled round a reel 21. As to a conductor, Al, Ag or the like may be used except Cu. While as to oxide system superconductive material, material including either one of Ca, Ba, or Sr, one of a group of Y, Sc or La and one of O, F, N or C may be used. |
