ポンプ材料の耐スラリー摩耗性の評価と実機への適用

概要

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Slurry-wear resistance was evaluated on pump materials of castings, rollings, thermal sprayings, overlayings and a plating using a jet apparatus. The wear resistance (a reciprocal of volume loss rate) as a function of HV^2/E (HV: Vickers hardness and E: Young's modulus) exhibited two curves. The wear resistance of brittle materials is lower than that of ductile materials. However, the resistance to penetration (a reciprocal of maximum wear depth rate) increases with HV^2/E irrespective of material brittleness. This means that the wear spreads widely for brittle materials, while it concentrates in a small region for ductile materials. Therefore, the relation between maximum wear depth rate and volume loss rate was divided into two groups. For brittle materials, maximum wear depth rate is relatively low, although volume loss rate is high. It was confirmed that the above conclusions hold for the prototype tests using an actual pump.
一般社団法人日本機械学会の論文
1996-01-25