| 摘要 |
<p>The device has a contact tube including a wire feed for a melting wire and is arranged within a rectangular inert gas tube (60). The wire feed has a bent profile for the melting wire, before emerging from the contact tube. The inert gas tube has multiple cooling tubes to provide active cooling and includes multiple materials with a high thermal conductivity located at a ceramic end (13) of the inert gas tube.</p> |
