| 摘要 |
PURPOSE:To see that the junction interface between the superconductive wire and the aluminum wire of an aluminum composite superconductive wire does not exfoliate easily by performing the treatment for uniting the superconductive wire with an aluminum bar after inserting the aluminum bar into the hollow part of the tubular superconductive wire. CONSTITUTION:A tubular superconductive wire 20 (21: outer-layer copper, 22: superconductive aggregate, 23: inner-layer copper 24: hollow part) is made by extrusion molding, and an aluminum bar 30 is inserted into this tubular superconductive wire 20, and next time tubular superconductive wire 20 and the aluminum bar 30 are united. For the said extrusion molding, extrusion method such as hydrostatic extrusion molding, lubricative extrusion, etc., can be applied. Moreover, for the tubular superconductive wire, digressive processing by drawing may be performed prior to inserting the aluminum bar. Furthermore, for the unification between the superconductive wire and the aluminum bar, drawing together method can be applied. |
