片状黒鉛を有する鋳鉄の潤滑，滑り摩耗機構に関する一考察
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概要
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The features of wear mechanism of cast iron under the state of lubricating, sliding are as follows. 1) Oxidation of frictional face owing to the oxygen absorbed in the lubricating oil. 2) Oil absorption of graphites on contact faces, which influences on wear. In this study these phenomena were investigated, and from the results, lubricating, sliding wear mechanisms of cast iron were discussed. These were summarized as follows; 1) The change of character accompanied by the oxidation of the lubricating oil was investigated. It was to be noted that viscocity, viscocity index, strength of oil film which had direct influence on wear became worse, as lubricating oil was more oxidized. 2) When the experiment was made on the lubricaring oil which was in some degree oxidized, the frictional surface was oxidized by the oxygen absorbed in the oil. The oxidized frictional dace improved protective character of oil film. Accordingly, wear loss in this state was inclined to decrease. But when remarkably oxidizing oil was used, it was difficult to supply the oil to the gap of contact face on account of lowering the strength of oil film and increasing the viscocity accompanied by oxidation, so it was found that wear loss increased rapidly owing to adhesion. 3) The influence of the spaces between graphites on the contact surface on wear was examined. It was found that in a range in which mechanical wear took place mainly, the wear resistance of initial and continious wear improves as mean value of graphites' space decreases.
- Japan Foundry Engineering Societyの論文
Japan Foundry Engineering Society | 論文
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