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公开(公告)号：US3559274A
公开(公告)日：1971-02-02
申请号：US3559274D
申请日：1966-08-03
Applicant: SNAM PROGETTI
Inventor： GRANATA SAVERIO
CPC classification number: G21C21/02 , G21C21/08 , Y10T29/49865
Abstract: A TUBULAR NUCLEAR FUEL ELEMENT IS GIVEN AN INTERNAL SHEATING BY THRUSTING A PIPE, SHRUNK BY COOLING, INTO THE ELEMENT AND THEN RAISING THE TEMPERATURE OF THE PIPE TO ROOM TEMPERATURE SO THAT IT EXPANDS AND PASSES TIGHTLY AGAINST THE INNER WALL OF THE FUEL ELEMENT, AND THERE AFTER THE SHEATING IS HEATED INTERNALLY AND THE FUEL ELEMENT IS COOLED EXTERNALLY TO CAUSE INTER-DIFFUSION AT THE INTERFACE BETWEEN THE SHEATHING MATERIAL AND THE FUEL ELEMENT WITHOUT ESTABLISHING PREFERENTIAL CRYSTALLINE ORIENTATIONS IN THE FUEL.
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