Patent ID: 8188010
Filing Date: 2012-05-29
Classification: H01B,H01F,H01L,Y02E,Y10S,Y10T

Abstract:
1. A manufacturing method of a composite superconductive wire-material, which comprises the steps of: preparing a composite superconductive wire-material comprising: a thin-film superconductive wire-material including: a substrate; a superconductive layer; and a stabilizing layer; arranged in this order; abutting the thin-film superconductive wire-material and an electroconductive tape to each other; immersing at least a part of an abutment area, the abutment area comprising the thin-film superconductive wire-material and the electroconductive tape abutted to each other, into a molten solder in a solder bath to bond the thin-film superconductive wire-material and the electroconductive tape to each other, thereby forming a composite superconductive wire-material bondedly formed by the solder; and transporting the composite superconductive wire-material to the outside of the solder bath; and that the solder is a lead-free solder comprising at least Sn and Bi, wherein at least the part of the abutment area is immersed into the solder at an immersion temperature between 160° C. and 200° C.; and the immersion temperature has a relationship with an immersion time, during which at least the part of the abutment area is immersed into the solder, as follows,