铌钛多芯复合超导线的焊接是各种超导磁体制造的关键技术之一。本文从铜基铌钛多芯复合超导线的结构特征出发,对超导线接头进行了储能焊试验和测试,使用本校开发的特种对焊机和焊接工艺技术,成功地焊制出了一批超导线对接接头,其性能达到了国外同类接头的水平。该工艺方法可靠,设备简单,接头性能优良,适合于现场焊接、具有实用和推广价值。 Welding of niobium titanium multi-core composite superconducting wire is one of the key technologies in the manufacture of various superconducting magnets. Based on the structural characteristics of Cu-based niobium titanium multi-core composite superconducting wire, the superconducting wire joints were tested and tested by energy storage welding. Using the special welder and welding technology developed by our university, a series of successful welding tests Superconducting wire butt joint, its performance has reached the level of similar foreign connectors. The process is reliable, simple equipment, excellent joint performance, suitable for on-site welding, with practical and promotional value.