立軸ポンプ用セラミックス軸受に関する研究 : 第1報,スラリー中における軸受の摩耗について

概要

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The wear of various sleeve-type submersible bearings in slurry was investigated. These bearings are commonly used for diffuser-type vertical pumps. The test bearing materials were ceramics, tungsten carbides, and self-fluxing alloys which were expected to have sufficient wear resistance, even in slurry. Rubber, which is the most conventional bearing material, and resin were also tested. The test equipment simulated the actual vertical pump, that is, test bearings were installed in slurry and rotating shaft precessed. The slurry density was varied between 50 ppm and 3000 ppm. It was found that wear-rate and slurry density were strongly related in the range of slurry density form 200 ppm to 3000 ppm. The materials of higher hardness had better wear resistance, in particular, the combination of silicon carbide and tungsten carbide showed superior wear resistance.
社団法人日本機械学会の論文
1987-07-25