CAJ | 학술논문

采用湿法工艺制备3种不同编织密度的碳布增强树脂基摩擦材料.利用湿式惯量摩擦试验机研究碳布编织密度对材料摩擦磨损性能的影响.同时利用扫描电子显微镜观察磨损后材料的表面微观形貌.结果表明:随着碳布编织密度的增大,摩擦制动时间延长,摩擦力矩值变小,摩擦制动过程更加平稳;动摩擦因数和静摩擦因数减小,磨损率增大.动摩擦因数随着制动压力和转速的增加而减小,静摩擦因数随着制动压力的增大而减小.编织密度较大的试样,磨损后表面发生较为严重的纤维断裂、拔出及树脂脱黏现象.制备的碳布增强树脂基摩擦材料比纸基摩擦材料具有更加优异的耐热性能.
채용습법공예제비3충불동편직밀도적탄포증강수지기마찰재료.이용습식관량마찰시험궤연구탄포편직밀도대재료마찰마손성능적영향.동시이용소묘전자현미경관찰마손후재료적표면미관형모.결과표명:수착탄포편직밀도적증대,마찰제동시간연장,마찰력구치변소,마찰제동과정경가평은;동마찰인수화정마찰인수감소,마손솔증대.동마찰인수수착제동압력화전속적증가이감소,정마찰인수수착제동압력적증대이감소.편직밀도교대적시양,마손후표면발생교위엄중적섬유단렬、발출급수지탈점현상.제비적탄포증강수지기마찰재료비지기마찰재료구유경가우이적내열성능.
@@@@Three kinds of carbon fabric/ phenolic composites were prepared using the wet impregnation process,with different braiding count carbon fabric as reinforcement respectively. The tribological properties of the carbon fabric compos-ites were investigated on an inertia wet friction tester and the worn surface morphology was analyzed by scanning electron microscope. The results show that with the braiding count of carbon fabric increasing,the braking time is prolonged and the friction torque is decreased,while the braking process become more stable;the dynamic friction coefficient and the static friction coefficient are decreased while the wear rate is increased. The dynamic friction coefficient is decreased along with the increasing of braking pressure and rotating speed,the static friction coefficient decreased along with the increasing of braking pressure. The breakage and removal of carbon fibers along with resin peeling off from the surface are obviously found on the sample with higher braiding count. The carbon fabric/ phenolic friction material processed has better heat re-sistance than the paper - based friction material.