FIELD: electron-beam welding systems. SUBSTANCE: installation for electron beam welding has the vacuum chamber 1 with the sealing assembly 2 for the part 3, being welded. The chamber 1 has the stationary portion 4 with the slot 5 along its generatrix for passing the electron beam 6. The stationary portion 4 is in the form of a rectangular parallelepiped, joined with the tube member 7, into which the movable portion 5 is being inserted. The movable portion 8 also is in the form of a tube, in which the electron beam gun 9 is placed. Pressurization of a cavity, formed between the tube member 7 and the movable tube 8, is being performed with use of sealings 10, being in the form of elastic reversing tubes, secured to respective ends of the stationary portion 7 and of the movable portion 8. Such installation allows to perform by one transition (without replacing) welding of extended butts. EFFECT: enhanced serviceability. 1 cl, 2 dwg
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|---|---|---|---|
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