高强铝合金-PTFE纺织复合材料的摩擦磨损性能

Teflon

高强铝合金-PTFE纺织复合材料的摩擦磨损性能
Friction and Wear Properties of a High Strength  Al Alloy-PTFE Fabric Composite
作　　者：舒伟才 向定汉

Shu Weicai Xiang Dinghan （College of Materials Science and Technology ＇Nanjing University of Aeronautics and Astronautics, Nanjing Jiangsu 210016, China）

机构地区：南京航空航天大学材料科学与技术学院,江苏南京210016

出　　处：《润滑与密封》 CAS CSCD 2007年第32卷第3期 55-57页,共3页

Lubrication Engineering

基　　金：航空科学基金项目（04G52044）.

摘　　要：将PTFE纺织复合材料粘结到高强铝合金背衬上，制备成铝合金-PTFE纺织复合材料。选择航空工业常用的3层复合材料（DU）作对比实验。摩擦磨损实验在摆动实验机上完成，实验条件为：载荷为10—80MPa，摆动频率8次／min，摆角为±30。，相对湿度（70±5）％。实验结果证实铝合金-PTFE纺织复合材料的摩擦因数大约0．055，摆动磨损寿命大约2．5万次，均优于DU材料。可见，这种高比强的新型复合材料适用于航空航天工业。

An Al alloy-PTFE fabric composite was prepared, which is composed of polytetrafluoroethylene （PTFE） fabric as the matrix, and adhesive resin as the binder, and is cohered onto a high strength Al alloy support. Another kind of steel-bronze-PTFE composite （DU） was selected as a comparative investigation. Friction and wear tests were carried out in an Oscillating tribo-tester. Experimental conditions were normal pressure from 10 to 90 MPa,an oscillating frequentcy of 8 times per minute, oscillating angles of ± 30° and relative humidity of （70 ± 5 ） %. The result shows that the Al alloy-PTFE fabric composite exhibits a lower sible that the newly high specific coefficient of friction and longer oscillating wear life of 25 000 times than DU. So it is fea- strength composite is applied in aerospace.

关 键 词：纺织复合材料 聚四氟乙烯 磨损 自润滑轴承
fabric composite polytetrafluoroethylene wear self-lubricating bearing
分 类 号： TB333 [工业技术 > 一般工业技术 > 工程材料学 > 复合材料] TH117.1 [工业技术 > 机械、仪表工业 > 机械学（机械设计基础理论） > 机械摩擦、磨损与润滑]

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