Method of forming grids for nuclear fuel assembly and grids formed by same method
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United States of America Patent
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-
Nov 19, 1996
Grant Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Jul 21, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of forming a nuclear fuel assembly grid, as well as the resulting grid itself, are disclosed. In the formation of the grid, formed straps having slits are prepared, arranged into a grid form by intersecting the straps with each other through the slits, and the intersections of the associated straps are brazed. Prior to the step of arranging the straps, those portions to be brazed are subjected to a pretreatment, in which an paste, prepared of a mixture of a filler metal and a vehicle, is applied to the portions to be brazed to form a thin film thereon.
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