Process for producing metal-sheathed strands, especially glass f

Details Process for producing metal-sheathed strands, especially glass f Process for producing metal-sheathed strands, especially glass f

1998-02-27

2000-02-15

Echols, P. W.

Metal working

Method of mechanical manufacture

Shaping fiber or fibered material

29 33R, 29599, 228148, B23P 1700

Patent

active

060238313

ABSTRACT:
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.

REFERENCES:
patent: 3913368 (1975-10-01), Eibe
patent: 5249731 (1993-10-01), Ziemek

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