| 摘要 |
PURPOSE: A spacer grid of a fuel rod is provided to improve productivity and mold design by simply forming the shape of an inner grid plate. CONSTITUTION: A first inner grid plate(10) includes a dimple which supports a fuel rod on the plane. A second inner grid plate(20,21,22,23,24,25,26) includes a slot which is orthogonally combined with a first insertion slot unit, a second insertion slot or a third insertion slot. A third inner grid plate(40,40') includes a slot which is orthogonally combined with the first insertion slot or the second insertion slot. A fourth inner grid plate(50) includes a slot with is orthogonally combined with the second insertion slot or the third insertion slot. An outer grid plate(60) covers first to fourth inner grid plates.
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