| 摘要 |
<p>This publication discloses an assembly suited for feeding a powderized filler material in plasma welding. The invention is based on feeding the filler material flow first along a first channel (6), which is next divided into two separate channels (7) that are branched aside from said first channel (6). The forked branches (7) can further be divided into a plurality of branches (8, 9), and according to an advantageous embodiment, the manifold of feed channels exits into a feed nozzle (5, 11, 12, 13) of shielding gas and powderized filler material, said nozzle being provided with a plurality of grooves (11) along which the gas and powderized filler material enter the welding plasma of the torch and the gas flow becomes laminarized. The shielding gas and the filler material can be fed along a single manifold of channels and the tip of the torch can be made extremely small in size.</p> |
