FILLER WIRE

摘要

1. Process for continuous manufacture of a welded or folded filled wire of any length constructed of a metal tube and a powdery material filling which is formed from a metal strip (3) as a slit tube (7) open at its apex in which during its continuous feed forward the powdery material is introduced and which by pressing and by welding or folding along its longitudinal edges is formed to a tube (15) enclosing the material filling which is then reduced to a smaller diameter to form the filled wire characterised in that during the welding or folding of the tube the air streams arising in the slit tube (7) and in the closed tube (15) are sucked away in the region of the welding or folding zone.