Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
권호 표지
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Wear and Friction Behavior on the Surface of Swash Plate of Compressor for Air Condition System of Automobile

자동차 에어컨용 압축기 사판의 표면 형태에 따른 마찰 마모 거동

  • Kwon, Yun-Ki (Dept. of Mechanical Design, Doowon Technical College) ;
  • Lee, Geon-Ho (Dept. of Building Services Engineering, Doowon Technical College) ;
  • Lee, Ki-Chun (Doowon R&D Center)
  • Received : 2011.01.06
  • Accepted : 2011.03.20
  • Published : 2011.04.30
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Abstract

The tribological characteristics of the swash plate surface of a compressor which is for automobile were investigated. For surface treatments, PTFE and $MoS_2$ 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 $MoS_2$, 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 $125^{\circ}C$, seizure has occurred.

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References

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