SPACING GRID MAKING METHOD Russian patent published in 2005 - IPC

Abstract RU 2252846 C1

FIELD: nuclear power production, possibly processes for making spacing grids of fuel assemblies assembled of cells formed of tubular blanks.

SUBSTANCE: method comprises steps of securing solder in the form of amorphous belt to edges of cells; selecting surface area of solder in the form of amorphous belt secured to edges of cell in range 0.17F -0.61F where F - surface area of cell edge; placing cells in jig for further heating soldered surfaces higher than temperature of solder melting; pressing soldered surfaces one to other with effort in range 300 - 500g/sq.cm.

EFFECT: enhanced corrosion proofness and strength of soldered joint, increased rigidity of the whole spacing grid.

4 cl, 1 dwg

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RU 2 252 846 C1

Authors

Kalin B.A.

Fedotov V.T.

Sevrjukov O.N.

Mamedova T.T.

Ivanov A.V.

Timoshin S.N.

Dates

2005-05-27—Published

2003-12-10—Filed