Schweissindustrie Oerlikon Buhrle Ag

Alexander Werner

Heinz Pfenninger

The filler wire is a closed tube, in whose interior is located a filling of two or more pulverulent material components. With the split tube still open, the filling is introduced in the form of layers and then the split tube is closed. As a result of the filling introduced in layer form, a favorable set of conditions for closing or sealing the tube, for example by welding, is provided.

Filler wire

In the installation, a strip is shaped from a split tube which is welded or seamed to give a closed tube in a welding or seaming station. Associated with the welding or seaming station is a suction mechanism used for the removal of on the one hand the cold air flow produced by the moving open tube and on the other the air flow heated during welding and flowing back from the closed tube, as a result of the reduction of the internal cross-section thereof. This obviates air turbulence in the welding or seaming station, which could whirl up the pulverulent material introduced into the open tube in a dosing station and could be deposited on the longitudinal edges of the split tube. This could unfavorably influence the seaming or welding process.

Growing community of inventors

Glattbrugg, Switzerland

Alexander Werner