| 摘要 |
<p>In a method for continuous prodn. of wire-filled strip in which successively steel strip is formed into an open channel, powder is deposited therein, and the channel is closed into a tube, air currents occurring adjacent to the moving strip are removed by suction extraction at the location where the powder is deposited. Pref. at the upstream end of the powder filling station air is extracted at a higher velocity and then immediately downstream at a lower velocity, while at the downstream end of the station extraction is initially at lower velocity and then at higher velocity. The air currents are extracted horizontally. Appts. comprises rolls for bending the strip into channel, a feed hopper for filling the latter with powder, rolls for closing the channel into tube and a welding station for sealing the latter, together with an extractor nozzle at the filling station.</p> |
