Method for welding of fuel rod
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United States of America Patent
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Dec 20, 1994
Issued Date -
N/A
app pub date -
Nov 19, 1993
filing date -
Nov 20, 1992
priority date (Note) -
Expired
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Abstract
A resistance welding method for a fuel rod is presented in which the gas seal opening is closed with a sealing material of the same composition as the end plug material. The method enable to perform welding stably in a pressurized welding chamber, and the process is amenable to automation. The sealing material body is made of a wire, and is pressed against the conical shaped opening provided on the end plug. The welding method avoids contaminating the weld with undesirable impurities from the electrode material, and the welding operations is designed so that there is no need to reshape the end of the electrode or adjust the gap between the sealing material and the seal opening.
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