Method for manufacturing of metallic fuel slugs with high contents of rare earths materials and meta

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The present invention relates to a method for manufacturing a metallic fuel slug with a high rare-earth content and a metallic fuel slug manufactured thereby. Specifically, the method for manufacturing a metallic fuel slug with a high rare-earth content comprises : a step (step 1) of coating an inner surface of a melting crucible and a mold with a ceramic material to form a ceramic layer; a step (step 2) of inserting a metallic fuel material into the melting crucible on which the ceramic layer is coated in the step 1; a step (step 3) of firstly heating the melting crucible into which the metallic fuel material is inserted in the step 2 in a vacuum atmosphere; a step (step 4) of secondly heating the metallic fuel material of the step 3 in an inert gas atmosphere; and a step (step 5) of filling the mold on which the ceramic layer of the step 1 is coated with the heated metallic fuel material of the step 4. The present invention can suppress a reaction between a uranium alloy tank and the mold and between the uranium alloy tank and the melting crucible, manufacture a high purity fuel slug since the metallic fuel material is melted in a vacuum atmosphere and an inert atmosphere sequentially, minimize fuel loss, and stabilize a process. Improved injection casting is performed to prevent the metallic fuel material from entering an intake line after filling the metallic fuel material and remove a repulsive pressure inside the mold. A vacuum purging process is included to smoothly fill the metallic fuel material.(S200) Insert U, Pu, Zr, RE fuel(S100) Coat a dense ceramic layer(S510) Vacuum purging(S520) Molten metal material intake(S530, S511) Pressurize the inert gas (gas vent in the mold)(S300) Firstly heat and melt after vacuum pumping(S400) Secondly heat and melt in an inert gas atmosphere(S500) Fill a mold (injection casting, inert gas cooling)COPYRIGHT KIPO 2015