Guide tube for a nuclear fuel assembly, and a method of manufacturing such a tube
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United States of America Patent
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Feb 25, 1997
Grant Date -
N/A
app pub date -
Dec 29, 1994
filing date -
Dec 29, 1993
priority date (Note) -
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Abstract
A method of manufacturing a guide tube for a nuclear fuel assembly, in which a tubular blank of constant thickness is prepared, the thickness of the blank is reduced over a fraction of its length in the range 70% to 90% while maintaining a constant inner diameter, and then that section of the blank which has retained its original thickness is forced inwardly by an amount such that a tube is formed which has a constant outside diameter and a variable thickness.
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