Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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A Study on Wear Properties of Solid lubricating Greaphite Materials

고체윤활 Graphite 소재의 마모 특성에 관한 연구

  • Yang, Hoyoung (Department of Mechanical Design Engineering, Chungnam National University) ;
  • Kim, Jaehoon (Department of Mechanical Design Engineering, Chungnam National University) ;
  • Kim, Yeonwook (Department of Mechanical Design Engineering, Chungnam National University) ;
  • Ha, Jaeseok (Department of Mechanical Design Engineering, Chungnam National University) ;
  • Park, Sunghan (Advanced Propulsion Technology Center, Agency for Defense Development) ;
  • Lee, Hwankyu (Advanced Propulsion Technology Center, Agency for Defense Development)
  • Received : 2012.12.02
  • Accepted : 2013.09.15
  • Published : 2013.10.01
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Abstract

The important design factors for designing solid lubricating of dynamic seal are tightness, wear resistance and lubricant films. In this study, the effect factors influenced solid lubricating properties of the graphite were analyzed and wear behaviour caused for various test conditions was compared with results obtained from reciprocating wear tests. Also the optimal conditions for formation of lubricant films were investigate to evaluate wear properties of graphite materials. The repeated procedure for the formation of wear particles and lubricant films, and the dissipation of lubricant films was estimated the wear mechanisms with changes of wear depth. Therefore the lubricant film of graphite seal was generated by adhesion of wear particles on the worn surface and it was very useful in wear characteristics.

동적 기밀구조에 사용되는 고체윤활재의 선택에 있어 중요 설계 변수들은 기밀성, 내마멸성, 윤활막의 형성 등이 있다. 본 연구에서 그라파이트의 고체유할 특성에 영향을 미치는 영향인자들이 분석되었고 다양한 시험 조건들에 대하여 발생하는 마모거동이 왕복동 마모시험으로부터 얻은 결과들과 비교되었다. 또한 윤활 막들의 생성에 대한 최적조건들이 그라파이트 소재의 특성들을 평가하기 위하여 조사되었다. 마멸입자의 생성, 윤활 막의 생성, 윤활 막의 소멸의 과정을 반복하는 과정이 마모 깊이의 변화와 통하여 마모 메커니즘을 평가하였다. 따라서 그라파이트 씰의 윤활막은 마모된 표면위에 마모 입자들의 응착에 의해 발생한 윤활막이 발생되었고 이는 마모특성에 매우 유용하였다.

Keywords

References

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