Method of assembling composite billets for manufacturing multifilament superconducting strands

摘要

A method of assembling composite billets of circular section for manufacturing multifilament superconducting strands, in which a cylindrical body is initially filled with jig bars having at least one axis of symmetry of order n stacked inside the cylindrical body. As the jig bars are removed, one by one, each jig bar is replaced by a multi-part bar made up of unit rods stacked in ordered and compact manner to occupy minimum space. Each multi-part bar has the same section as the jig bar that it replaces. The jig bars are preferably rectangular, and more preferably square in section, and the multi-part bars that replace them are made up of unit rods that are rectangular and preferably square in section. The method facilitates and speed up assembly.