METHOD FOR PRODUCING HOMOGENEOUS NUCLEAR FUEL Russian patent published in 2002 - IPC

FIELD: atomic engineering; nuclear fuel production from mixture of uranium and plutonium oxides. SUBSTANCE: method includes charging the chamber with uranium and plutonium oxide powders and magnetic needles, mixing up these powders by means of magnetic needles, compressing mixture obtained to form pellets, and sintering the pellets. Magnetic needles are moving within chamber under action of variable magnetic field. Uranium and plutonium oxide powders and magnetic needles fill up to 70-90% of chamber volume. Ratio of total mass of uranium and plutonium oxide powders to that of magnetic needles is set between 0.30 and 0.65, mainly between 0.40 and 0.50% Then chamber filled with powders and magnetic needles is subjected to deep chilling and powders are mixed up. In the process powders are finely dispersed, loose mass is uniformly mixed up, and fluidity of molding powder is increased. EFFECT: enhanced process efficiency, improved nuclear safety for personnel engaged in mixing up powders. 6 cl, 2 dwg, 1 tbl