Internal equipment for electron beam butt welding of two annular

Details Internal equipment for electron beam butt welding of two annular Internal equipment for electron beam butt welding of two annular

1994-05-12

1995-11-28

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

B23K 1504

Patent

active

054710308

ABSTRACT:
The internal equipment (4) includes a metal ring (13) having an outside diameter substantially equal to the inside diameter of the annular parts (1, 2) and including a plurality of radially extending slots in a part of its width defining interconnected adjacent ring segments, and a device (14) for maintaining and thrusting the metal ring (13) against the inner surfaces of the annular parts (1, 2) in their connection region (11) and including a central support part (21) and a plurality of arms (22) of adjustable length having a radiating disposition around the central part (21). The internal equipment (4) further includes two walls (15, 16) defining a fluidtight chamber (8) inside the parts (1, 2).

REFERENCES:
patent: 3783230 (1974-01-01), Peyrot
patent: 4368374 (1983-01-01), De Sivry et al.
patent: 4370541 (1983-01-01), De Sivry et al.
patent: 4393294 (1983-07-01), Shima et al.
Search Report FR 93 05726, Feb. 1994.
Derwent Publications, Abstracts JP55048487, No Publication Date.

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