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여러 미끄럼 조건에 따른 로터리 압축기 베인 / 롤러 표면의 마찰 마멸 특성
이영제(Young-Ze Lee),오세두(Se-Doo Oh),김종우(Jong-Woo Kim),김철우(Cheol-Woo Kim),최진규(Jin-Kyu Choi),조성욱(Sung-Ook Cho) 한국유체기계학회 2002 유체기계 연구개발 발표회 논문집 Vol.- No.-
One of the serious challenges in developing rotary compressor with HFC refrigerant is the prediction of scuffing times and wear amounts between vane and roller surfaces. In this study, the tribological characteristics of sliding surfaces using vane-roller geometry of rotary compressor were investigated. The sliding tests were carried out under various sliding speeds, normal loads and surface roughness. During the test, friction force, wear depth, time to failure and surface temperature were monitored. Because severe wear was occurred on vane surface, TiN coating was applied on sliding surfaces to prolong the wear-life of vane-roller interfaces. From the sliding test it was found that there was the optimum initial surface roughness to break in and to prolong the wear life of sliding surfaces. Depending on the load and speed, the protective layers, which were composed of metallic oxide and organic compound, were formed on sliding surfaces. Those would play an important role in the amounts of friction and wear between roller and vane surfaces.