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高速炉燃料の高効率溶解技術開発,9; 溶解槽軸受け部の耐久性試験

Development of efficient dissolution technology for FBR MOX fuel, 9; Endurance test of the bearing for rotary dram type continuous dissolver

桂井 清道; 鷲谷 忠博 ; 大西 宏行*; 黒田 一彦*; 西川 秀紹*; 中谷 達也*; 山下 一彦*; 吉峰 千尋*

Katsurai, Kiyomichi; Washiya, Tadahiro; Onishi, Hiroyuki*; Kuroda, Kazuhiko*; Nishikawa, Hideaki*; Nakatani, Tatsuya*; Yamashita, Kazuhiko*; Yoshimine, Chihiro*

高速増殖炉サイクル実用化研究開発(FaCTプロジェクト)の一環として開発中の回転ドラム型連続溶解槽に使用する軸受の耐久性試験で得られた知見を報告する。溶解槽に使用する軸受は高放射線環境,高荷重低揺動運転の厳しい条件で使用される。このような条件における軸受の耐久性を確認するため、無潤滑タイプとしてカーボンすべり軸受、潤滑タイプとして放射線・熱劣化を模擬した潤滑剤を用いたハイブリッド玉軸受の小型規模の耐久性試験を実施し、溶解槽軸受への適用性を評価した。

This report presents the knowledge acquired by the endurance test of the bearing used for the rotary drum type continuation dissolver under development as part of Fast Breeder Reactor Cycle technology Development Project (FaCT project). The bearing used for a dissolver is used on high radiation environment and the severe conditions of high load low swing motion operation. In order to check the endurance of the bearing in such conditions, the endurance test of the small scale of hybrid roll bearing using the lubricant which imitated carbon slide bearing as a-less lubricous type, and imitated radiation and heat degradation as a lubricous type was carried out, and the applicability to dissolver bearing was evaluated.

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