This paper introduced the structure and ability improvement of the Spiral Welded Pipe Set, in order to adapt the spiral welded to the development direction on large diameter and high intension.

• 介绍了螺焊机组中双锥头开卷机的备卷、上卷、开卷等结构和性能的改进,以适应螺旋焊管向大直径高强度发展的趋势。