Method for manufacturing multi-layered nuclear fuel cladding and multi-layered nuclear fuel cladding produced thereby

Abstract

A method for manufacturing a multi-layered nuclear fuel cladding, the method including the steps of: preparing a preliminary cladding by inserting an inner tube into a zirconium alloy tube extending in a first axial direction in such a way as to allow the inner tube to be coaxially arranged with the zirconium alloy tube and by fitting an outer tube to the zirconium alloy tube in such a way as to allow the outer tube to be coaxially arranged with the zirconium alloy tube; inserting a bullet-shaped insertion body whose both end portions have different outer diameters into the inner tube; and applying a given force to the preliminary cladding to reduce the thickness and diameter of the preliminary cladding, wherein at least one of the inner tube and the outer tube is made from a ferrous or non-ferrous metal.

Dependencies are inferred from the claim text.