Electric heating – Inductive heating – With heat exchange
Reexamination Certificate
2006-12-28
2009-02-24
Leung, Philip H (Department: 3742)
Electric heating
Inductive heating
With heat exchange
C219S635000, C219S656000, C219S674000, C266S129000, C148S567000, C148S574000, C376S409000
Reexamination Certificate
active
07495197
ABSTRACT:
In a method for heat treating a fuel assembly channel made of zircaloy, the channel is continuously moved relative to a heat-treatment device and, longitudinal sections of it are heated to the beta phase range in an inductive heating zone. The longitudinal section of the channel heated in this manner is than cooled in a cooling zone to a temperature within an alpha phase range. The heat treatment is effected by at least two heating devices, which are spaced apart from one another, operate independently of each other, and each contain at least one induction coil and together form a heating zone. The channel section is first heated using a first heating device and then heat-treated using a second heating device which has less power and in that cooling is effected using a stream of inert gas applied to the outer surface of the channel.
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Block Bernd
Körzendörfer Maximilian
Lippert Hans-Joachim
Möckel Andreas
Areva NP GmbH
Greenberg Laurence A.
Leung Philip H
Locher Ralph E.
Stemer Werner H.
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