| 摘要 |
a. Electron-beam welding machine. b. Machine characterised in that it comprises a sealed chamber 24 connected to a vacuum source 37, this chamber comprising a lateral wall 25 connecting two parallel opposite walls 32, 33, 26 which are provided one with means 321, 331 for the sealed passage of the first 30 of the parts to be welded and the other 26 with means for the support of the second part 29 to be welded inside the chamber 24 and in the extension of the first part 30. c. The invention is applicable for obtaining long parts which are welded under vacuum with the aid of an electron gun. <IMAGE>
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