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무 윤활 상태에서 코팅에 따른 자동차 에어컨용 압축기 사판 표면의 마모 특성
권윤기(Yunki Kwon),이건호(Geonho Lee) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
In this study, the tribological characteristics of the swash plate surface of a compressor were investigated. For surface treatments, PTFE and MoS₂ are used as a solid lubricant, together with copper alloy. Test condition is set considering actual driving condition. Wear testing is conducted using pin on disk type tester, and the coefficient of friction and the temperature on friction surface are measured. Also, to determine the wear patterns, cross-section of friction surface is analyzed by SEM(scanning electrode microscope). In case of MoS₂, friction surface and the coefficient of friction maintained rather stable results. But, in case of PTFE, at oil less condition, resulted in rather unstable condition. In case of copper alloy, quite higher friction coefficients(higher than 0.1) were obtained at dry condition. At the temperature of 125℃, seizure has occurred.
자동차 에어컨용 압축기 사판의 표면 형태에 따른 마찰 마모 거동
권윤기(Yunki Kwon),이건호(Geonho Lee),이기천(Kichun Lee) 한국트라이볼로지학회 2011 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.27 No.2
The tribological characteristics of the swash plate surface of a compressor which is for automobile were investigated. For surface treatments, PTFE and MoS2 are used as a solid lubricant, together with copper alloy. Test condition is set considering actual driving condition. Wear testing is conducted using pin on disk type tester, and the coefficient of friction and the temperature on friction surface are measured. Also, to determine the wear patterns, cross-section of friction surface is analyzed by SEM(scanning electrode microscope). The MoS2, both at dry and lubricated conditions, friction surface and the coefficient of friction maintained rather stable results. But, the PTFE, at oil less condition, sample resulted in rather unstable condition. In case of copper alloy, quite higher friction coefficients(higher than 0.1) were obtained at dry condition. At the temperature of 125oC, seizure has occurred.