| 摘要 |
<p>In a method for the continuous manufacture of powder-filled steel tube from steel strip (12), wherein the strip is moved along a path in which successively the moving strip is formed into an open channel (14), powder (16) is introduced into the open channel, and the channel (14) is shaped into a tube (17) by further deformation and closure of the strip edges together. To avoid the disturbance of the powder by air currents caused by the strip movement and by the closure of the strip, such air currents arising in the vicinity of the moving strip are removed by suction extraction at the location where the powder (16) is introduced into the open channel (14).</p> |
