Method and apparatus for producing a reactor spacing grid by pul

Details Method and apparatus for producing a reactor spacing grid by pul Method and apparatus for producing a reactor spacing grid by pul

1983-03-02

1987-01-13

Paschall, M. H.

Electric heating

Metal heating

By arc

219121LY, 219121EC, 219121PJ, 376441, 376462, B23K 2600

Patent

active

046366067

ABSTRACT:
The present invention relates to a method and to an apparatus for producing nuclear reactor structures, such as spacing grids, by pulse laser welding.
The grid is placed in a tight enclosure and having thin plates, which intersect one another, so as to define a certain number of crosspieces. By means of a laser source positioned externally of the enclosure, each of the ends of the crosspieces is fixed and optionally the crosspieces are welded along the intersections of the plates.
Application to the construction of zirconium alloy spacing grids.

REFERENCES:
patent: 4125755 (1978-11-01), Palmquist
patent: 4224096 (1980-09-01), Osborne
patent: 4351795 (1982-09-01), Nicholson
E. D. Jones et al., Nuclear Technology, "The Fabrication of Grid Spacer Assemblies for Liquid-Metal Fast Breeder Reactors", vol. 52, Mar. 1981, pp. 393-400.

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