| 摘要 |
<p>A method is described of manufacturing a gas feeder consisting of a gas supply conduit and at least one nozzle. The method provides the steps of forming the conduit (10) with at least one circular opening (12) having a depression (13) which forms a seat for the nozzle, forming a nozzle (11) having a circular peripheral portion (16) with a smaller diameter than that of the seat (13) in the conduit (10), and securing the nozzle (11) to the conduit (10) by deformably expanding its peripheral portion (16) until the edge thereof (17) engages the seat side wall (14). Also described are a nozzle (11) being stamped from sheet metal and having a funnel-shaped portion whose edge region (16) forms said deformably expandable peripheral region, and a gas feeder with at least one nozzle of this kind as made by the above-described method. <IMAGE></p> |
