디젤엔진용 핀부시 베어링 소재의 마찰특성에 관한 실험적 연구
Experimental Study on the Friction Characteristics of Pin-Bush Bearing Metals for Diesel Engine
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This paper presents the hardness and friction characteristics of pb-free pin-bush bearing metal, which is manufactured by a centrifugal casting technology. A bronze metal with a high hardness and low friction properties is usually used for Diesel engine pin-bush bearing and high pressure cylinder. Pb-free metal for pin-bush bearings shows a little high hardness of 120 Hv compared with that of a conventional Pb bearing metal of 100~110 Hv. In general, the friction coefficient of pin-bush bearings is affected by a rotating speed and a load for various rubbing contact modes. But a contact load is more influential parameter when the contact rubbing mode transits from a mixed lubrication to a dry friction contact. The experimental result shows that the friction coefficient is more unstable at the dry contact mode compared with that of other two rubbing modes such as oil film contact and mixed friction conditions.
Abstract
This paper presents the hardness and friction characteristics of pb-free pin-bush bearing metal, which is manufactured by a centrifugal casting technology. A bronze metal with a high hardness and low friction properties is usually used for Diesel engine pin-bush bearing and high pressure cylinder. Pb-free metal for pin-bush bearings shows a little high hardness of 120 Hv compared with that of a conventional Pb bearing metal of 100~110 Hv. In general, the friction coefficient of pin-bush bearings is affected by a rotating speed and a load for various rubbing contact modes. But a contact load is more influential parameter when the contact rubbing mode transits from a mixed lubrication to a dry friction contact. The experimental result shows that the friction coefficient is more unstable at the dry contact mode compared with that of other two rubbing modes such as oil film contact and mixed friction conditions.
참고문헌 (6)
- 김청균, "트라이볼로지" (2006), 형설출판사
- 김청균, "자동차 엔진공학" (2004), 북두출판사
- 김도현, "윤활형태에 따른 커넥팅로드 핀 부시의 유막 거동에 관한 수치적 연구", 한국윤활학회 추계학술대회 논문집, pp.323~328 (2007)
- 정남인, "마이크로 그루브를 통한 커넥팅로드 핀 부시의 윤활 특성에 관한 연구", 한국윤활학회 추계학술대회 논문집, pp.304~308 (2007)
- 김청균, "자동차 엔진용 핀부싱 베어링의 SEM", EDX 이용 성분 결함분석에 관한 연구, 2007, pp.23(5), 195~200
- "Council Decision", Official Journal of the European Union, pp.245 (2005), 69~245[DOI]