Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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A Study of Wear Behavior for Sealing Graphite at Elevated Temperature

씰링 그라파이트의 고온 마모 거동에 관한 연구

  • Kim, Yeonwook (School of Mechanical Design Engineering, Chungnam National University) ;
  • Kim, Jaehoon (School of Mechanical Design Engineering, Chungnam National University) ;
  • Yang, Hoyoung (School 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) ;
  • Kim, Bumkeun (Department of Mechanical & Automotive Engineering, Inje University) ;
  • Lee, Seungbum (Department of Mechanical & Automotive Engineering, Inje University) ;
  • Kwak, Jaesu (Department of Aerospace & Mechanical Engineering, Korea Aerospace University)
  • Received : 2013.06.07
  • Accepted : 2013.09.19
  • Published : 2013.10.01
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Abstract

Graphite is commonly used as a solid lubricant leading to low friction coefficient and abrasion. In this study, wear behavior of sealing graphite(HK-6) at elevated temperature was evaluated. Reciprocating wear test was carried out as wear occurred graphite as a seal(HK-6) is positioned between the liner and driving shaft. Variables which are temperature, sliding speed and contact load are set. This study suggest optimized environment conditions through the wear properties of graphite.

마모 마찰기구로 널리 사용되는 그라파이트에 대하여, 고온가스 조절 밸브 내에서 가스 유입 방지용 씰링 그라파이트 소재(HK-6)의 고온 마모 거동에 대하여 연구하였다. 구동축과 라이너 사이에 위치하여 지속적인 마모의 발생을 모사하기 위해 왕복동 마모 시험을 수행하였다. 마모 거동 변화의 영향 인자로 접촉 하중, 미끄럼 속도, 온도를 설정하고 민감도를 확인하였다. 마모 발생이 가장 적고 씰링 그라파이트 소재(HK-6)의 효율이 증대되는 최적조건에 대해 논의하였다.

Keywords

References

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