Process for the production of a screen plate for a fuel assembly

Details Process for the production of a screen plate for a fuel assembly Process for the production of a screen plate for a fuel assembly

1995-06-02

1998-08-25

Carone, Michael J.

Induced nuclear reactions: processes, systems, and elements

Fission reactor material treatment

Impurity removal

376352, G21C 1900

Patent

active

057990522

ABSTRACT:
In a fuel assembly for a nuclear reactor and a process for the production of a screen plate for a foot of the fuel assembly, a particle trap is disposed in the foot of the fuel assembly in order to protect fuel rods of the fuel assembly from damage by foreign bodies. The particle trap is formed of a one-piece screen plate into which holes in the screen plate are worked by electrochemical material erosion. It is thereby possible to produce holes with geometrical dimensions and shapes which can only be achieved with difficulty in a casting process or by mechanical machining.

REFERENCES:
patent: 4678627 (1987-07-01), Rylatt
patent: 4684495 (1987-08-01), Wilson et al.
patent: 4832905 (1989-05-01), Bryan et al.
patent: 5225152 (1993-07-01), Verdier

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