| 摘要 |
Disclosed is a process and apparatus for producing metal-sheathed strands, especially glass fiber cables, from a metal strip that is first formed into a U-shaped profile and then, after the placement therein of a non-ductile or slightly ductile core material, is closed to form a split tube carrying and/or protecting the core material, which split tube, after the welding of its longitudinal seam, is reduced in a subsequent deformation step. In the process of the invention, the metal-sheathed strand with the welded longitudinal seam is cold-formed in a stretch-reducing fashion in multiple continuous sequential steps. In the apparatus for implementing the process, multiple speed-controlled roll stands of a stretch-reducing cold rolling mill with declining caliber cross-sections are arranged one behind the other directly after the longitudinal seam welding machine for the split tube for the reductive deformation of the metal sheath.
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