| 摘要 |
<p>An axial plasma gas jet and a concentric annular plasma gas jet are employed, and the weld material is placed in the annular jet, by which it is melted and discharged onto the weld line between two workpieces which are being welded together. The weld material may be silicon, calcium, magnesium, cerium, yttrium, scandium, or mixtures of these metals.</p> |
