用全胶凝工艺控制UO_2微球的质量  

THE QUALITY CONTROL OF UO_2 MICROSPHERES WITH THE TOTAL GELATION PROCESS

作　　者：徐志昌[1] 唐亚平[1] 张富宏[1] 秦长生[1] 

机构地区：[1]清华大学核能技术设计研究院

出　　处：《核科学与工程》1996年第2期140-147,共8页Nuclear Science and Engineering

摘　　要：全胶凝工艺已经发展成为制造１０ＭＷ高温气冷堆燃料芯核，ＵＯ２微球的优选工艺；本文通过批量试验和工艺参数的控制，实现产品质量和产率的控制。批量试验结果表明：藉助于分散频率和胶凝条件的控制，实现了微球尺寸和球形的控制：藉助于烧结参数，其中包括氢气氛、温度和时间等的控制，能够实现微球密度和Ｏ／Ｕ比的控制。在批量试验中微球产品的产率达到９０％。The total gelation process of uranium for high temperature gas-cooled reactor of 10MW HTG-TM has been developed as an optimal process. The object of this paper is aimed to control quality and product yield of UO2 microspheres by means of batch scale tests and parameter control of TGU process. Batch scale tests have shown that the size and sphericity of UO2 microsheres can be controlled by the spray parameters,including vibration frequency and gelation conditions. Density and ratio of oxygen/uranium also can be controlled by the sintering conditions, including atmosphere, temperature and time.The production yield of 90% can be reached in the condition of the batch test.

关 键 词：高温气冷反应堆 核燃料芯核 全胶凝工艺 质量控制 产品产率 

分 类 号：TL424[核科学技术—核技术及应用]