Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Characteristics Evaluation of Light Brake disc and Linning for Railway Vehicle In Terms of Tribology

트라이볼로지 관점에서 철도차량의 경량 제동 디스크와 라이닝의 특성 평가

  • 김성권 (서울과학기술대학교 철도전문대학원) ;
  • 이희성 (서울과학기술대학교 철도전문대학원) ;
  • 권석진 (한국철도기술연구원) ;
  • 권성태 (한국철도기술연구원)
  • Received : 2011.02.02
  • Accepted : 2011.03.13
  • Published : 2011.04.30
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Abstract

The brake disc materials for railway vehicle have been mainly used cast-iron. The brake disc and pad should be light, resist to a thermal crack and absorb enough friction energy. In order to satisfy this requirement, aluminum alloy brake disc for railway vehicle has been newly developed. The aluminum itself has not been considered the friction material for railway vehicle. However, in the case of aluminum composite with dispersed ceramic particles, friction characteristics, resistance to wear and heat are much improved. In the present study, aluminum composite brake disc of 20% ceramic particle and three kinds of organic pads have been tested in dynamometer. The results show that Al MMC brake disc and pad have good friction coefficient and wear rate, and thermal cracks in brake disc have not been initiated. Also, the Al MMC brake disc can be applied to railway vehicle of 150 km/h.

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References

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