| 摘要 |
According to the invention a welding device for welding workpieces is provided. The welding device comprises a welding means for making a welding seam on workpieces and a cleaning nozzle in order to emit a cryogenic medium onto the surfaces of the workpieces in the area of their welding seam to be formed. The distance between the welding means and the nozzles is at least 5 cm.
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