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브레이크 패드에 함유된 아라미드 섬유와 미네랄 섬유의 마찰특성 연구
공지운(Ji Woon Kong),박정환(Jung Hwan Park),정진오(Jin Oh Chung),김향래(Hyang Rae Kim) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Friction characteristics of automotive friction materials according to the types of fiber were investigated by using a 115 scale brake dynamometer. fiber materials used in the study are aramid, mineral fiber respectively, while keeping other ingredients, such as binders, lubricants, abrasives, fillers the same. In the entire mode of friction test the friction coefficients of all the specimens show different among different pads even under the same temperature condition. In the effectiveness test, friction coefficients decrease with increase in the mineral fiber and aramid-containing friction material FB4 shows the highest coefficients. In the 1st fade test, fade phenomena is decreased with increase in the mineral fiber. The fade rate of FB1(scotching) is higher than the FB1. And 2nd fade rate is higher than 1st fade rate for each specimen. All the specimens tested showed a good recovery rate. The standard deviations of friction coefficient during entire mode for all the specimens were more stable with increase in the mineral fiber and FB1(scotching) is more stable than FB1.