| Summary: | 碩士 === 華梵大學 === 機電工程學系 === 104 === The paper studied the friction performance of the resin-based friction materials containing the ferrous fibers and several fillers fabricated by the mixer, compressive molding, and heat treatment. Their hardness, bonding strength, coefficient of friction, wear rate, and wear mechanisms were investigated.
The experiment results showed that the friction materials after heat treatment had a larger hardness than that after the compressive molding, and their bonding strengths increased with the more amount of ferrous fiber. However, the friction materials containing a fewer amount of ferrous fiber showed a relative lower coefficient of friction. When the amount of ferrous fiber contained 30 wt%, the resulting coefficient of friction showed a relative high up to above 0.35. The wear rate of the friction materials with the more amount of ferrous fiber became higher. Overall, the designed resin-based friction materials showed a relative lower and stable wear rate of about 0.5-2.0 x 10-7 cm3/kgf˖m under a low or high temperature. Furthermore, the resin-based friction materials tested at the dynamometer presented that the coefficient of friction decreased with the increase of the speed. And the friction coefficient under wet friction test increased to be stable with the increase of applied pressure. The worn surfaces of resin-based friction materials observed showed the appearances of some smooth adhesion, some scratches, and some powders peeled off to be the main wear mechanisms of abrasive, mechanical fatigue and adhesion.
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